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5dcfd6a1
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Christian Daniel
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/**************************************************************
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*
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* Lattice Semiconductor Corp. Copyright 2008
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*
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*
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***************************************************************/
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/**************************************************************
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*
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* Revision History of slim_pro.c
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*
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*
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* 09/11/07 NN Updated to support version 1.3
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* This version supported new POLING STATUS LOOP opcodes (LOOP and ENDLOOP)
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* for Flash programming of the Lattice FPGA devices
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* 09/11/07 NN type cast all the mismatch variables
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***************************************************************/
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#include <utility/trace.h>
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#include "opcode.h"
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#include "hardware.h"
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#define xdata
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#define reentrant
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/*************************************************************
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* *
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* PROTOTYPES *
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* *
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*************************************************************/
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uint8_t fpgaGetByte();
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unsigned int ispVMDataSize();
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short int ispVMShiftExec(unsigned int a_uiDataSize);
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short int ispVMShift(char a_cCommand);
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void ispVMStateMachine(char a_cNextState);
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void ispVMClocks(unsigned int a_usClocks);
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void ispVMBypass(unsigned int a_siLength);
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void sclock();
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short int ispVMRead(unsigned int a_uiDataSize);
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void ispVMSend(unsigned int a_uiDataSize);
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void ispVMLCOUNT(unsigned short a_usCountSize);
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void ispVMLDELAY();
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/*************************************************************
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* *
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* EXTERNAL FUNCTION *
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* *
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*************************************************************/
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extern void ispVMDelay(unsigned int a_usDelay);
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extern int readPort();
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extern void writePort(unsigned int a_ucPins, unsigned int a_ucValue);
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/*************************************************************
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* *
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* GLOBAL VARIABLES *
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* *
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*************************************************************/
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static int g_iMovingAlgoIndex = 0; /*** variable to hold the current index in the algo array ***/
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static int g_iMovingDataIndex = 0; /*** variable to hold the current index in the data array ***/
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unsigned short g_usDataType = 0x0000; /*** data type register used to hold information ***
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**** about the algorithm and data ***/
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static unsigned char g_cEndDR = 0; /*** used to hold the ENDDR state. ***/
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static unsigned char g_cEndIR = 0; /*** used to hold the ENDIR state. ***/
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static short int g_siHeadDR = 0; /*** used to hold the header data register ***/
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static short int g_siHeadIR = 0; /*** used to hold the header instruction register ***/
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static short int g_siTailDR = 0; /*** used to hold the trailer data register ***/
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static short int g_siTailIR = 0; /*** used to hold the trailer instruction register ***/
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static int g_iMainDataIndex = 0; /*** forward - only index used as a placed holder in the data array ***/
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static int g_iRepeatIndex = 0; /*** Used to point to the location of REPEAT data ***/
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static int g_iTDIIndex = 0; /*** Used to point to the location of TDI data ***/
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static int g_iTDOIndex = 0; /*** Used to point to the location of TDO data ***/
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static int g_iMASKIndex = 0; /*** Used to point to the location of MASK data ***/
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static unsigned char g_ucCompressCounter = 0; /*** used to indicate how many times 0xFF is repeated ***/
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static short int g_siIspPins = 0x00; /*** holds the current byte to be sent to the hardware ***/
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static char g_cCurrentJTAGState = 0; /*** holds the current state of JTAG state machine ***/
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static int g_iLoopIndex = 0;
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static int g_iLoopMovingIndex = 0; /*** Used to point to the location of LOOP data ***/
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static int g_iLoopDataMovingIndex = 0;
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static unsigned short g_usLCOUNTSize = 0;
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static unsigned char g_ucLDELAYState = IDLE;
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static unsigned short int g_ucLDELAYTCK = 0;
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static unsigned short int g_ucLDELAYDelay = 0;
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static unsigned short int m_loopState = 0;
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/*************************************************************
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* *
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* EXTERNAL VARIABLES *
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* *
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* If the algorithm does not require the data, then *
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* declare the variables g_pucDataArray and g_iDataSize *
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* as local variables and set them to NULL and 0, *
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* respectively. *
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* *
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* Example: *
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* xdata unsigned char * g_pucDataArray = NULL; *
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* xdata int g_iDataSize = 0; *
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* *
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*************************************************************/
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xdata const struct iState
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{
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/*** JTAG state machine transistion table ***/
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unsigned char CurState; /*** From this state ***/
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unsigned char NextState; /*** Step to this state ***/
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unsigned char Pattern; /*** The pattern of TMS ***/
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unsigned char Pulses; /*** The number of steps ***/
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} iStates[25] =
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{
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{ DRPAUSE, SHIFTDR, 0x80, 2 },
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{ IRPAUSE, SHIFTIR, 0x80, 2 },
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{ SHIFTIR, IRPAUSE, 0x80, 2 },
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{ SHIFTDR, DRPAUSE, 0x80, 2 },
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{ DRPAUSE, IDLE, 0xC0, 3 },
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{ IRPAUSE, IDLE, 0xC0, 3 },
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{ RESET, IDLE, 0x00, 1 },
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{ RESET, DRPAUSE, 0x50, 5 },
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{ RESET, IRPAUSE, 0x68, 6 },
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{ IDLE, RESET, 0xE0, 3 },
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{ IDLE, DRPAUSE, 0xA0, 4 },
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{ IDLE, IRPAUSE, 0xD0, 5 },
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{ DRPAUSE, RESET, 0xF8, 5 },
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{ DRPAUSE, IRPAUSE, 0xF4, 7 },
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{ DRPAUSE, DRPAUSE, 0xE8, 6 }, /* 06/14/06 Support POLING STATUS LOOP*/
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{ IRPAUSE, RESET, 0xF8, 5 },
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{ IRPAUSE, DRPAUSE, 0xE8, 6 },
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{ IRPAUSE, SHIFTDR, 0xE0, 5 },
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{ SHIFTIR, IDLE, 0xC0, 3 },
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{ SHIFTDR, IDLE, 0xC0, 3 },
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{ RESET, RESET, 0xFC, 6 },
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{ DRPAUSE, DRCAPTURE, 0xE0, 4 }, /* 11/15/05 Support DRCAPTURE*/
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{ DRCAPTURE, DRPAUSE, 0x80, 2 },
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{ IDLE, DRCAPTURE, 0x80, 2 },
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{ IRPAUSE, DRCAPTURE, 0xE0, 4 }
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};
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/*************************************************************
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* *
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* ISPPROCESSVME *
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* *
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* INPUT: *
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* None. *
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* *
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* RETURN: *
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* The return value indicates whether the vme was *
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* processed successfully or not. A return value equal *
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* to or greater than 0 is passing, and less than 0 is *
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* failing. *
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* *
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* DESCRIPTION: *
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* This function is the core of the embedded processor. *
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* It extracts the VME file for the high - level tokens *
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* such as SIR, SDR, STATE, etc, and calls the *
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* appropriate functions to process them. *
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* *
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*************************************************************/
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static short int g_lastRetCode;
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short int ispProcessVME() reentrant
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{
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unsigned char ucOpcode = 0;
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unsigned char ucState = 0;
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short int siRetCode = 0;
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static char cProgram = 0;
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unsigned int uiDataSize = 0;
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int iLoopCount = 0;
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unsigned int iMovingAlgoIndex = 0;
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/*************************************************************
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* *
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* Begin processing the vme algorithm and data files. *
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* *
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*************************************************************/
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if ((ucOpcode = fpgaGetByte()) != 0xFF)
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{
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//TRACE_INFO_WP("[%02x]", ucOpcode);
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/*************************************************************
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* *
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* This switch statement is the main switch that represents *
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* the core of the embedded processor. *
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* *
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*************************************************************/
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switch (ucOpcode)
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{
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case STATE:
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/*************************************************************
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* *
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* Move the state. *
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* *
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*************************************************************/
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ispVMStateMachine(fpgaGetByte());
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break;
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case SIR:
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case SDR:
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/*************************************************************
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* *
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* Execute SIR/SDR command. *
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* *
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*************************************************************/
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siRetCode = ispVMShift(ucOpcode);
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break;
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case TCK:
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/*************************************************************
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* *
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* Pulse TCK signal the specified time. *
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* *
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*************************************************************/
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ispVMClocks(ispVMDataSize());
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break;
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case WAIT:
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/*************************************************************
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* *
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* Issue delay in specified time. *
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* *
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224 |
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*************************************************************/
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ispVMDelay(ispVMDataSize());
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break;
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case ENDDR:
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/*************************************************************
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* *
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* Get the ENDDR state and store in global variable. *
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* *
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*************************************************************/
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g_cEndDR = fpgaGetByte();
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break;
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case ENDIR:
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/*************************************************************
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* *
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* Get the ENDIR state and store in global variable. *
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* *
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240 |
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*************************************************************/
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g_cEndIR = fpgaGetByte();
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break;
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case HIR:
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g_siHeadIR = (short int) ispVMDataSize();
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break;
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case TIR:
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g_siTailIR = (short int) ispVMDataSize();
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break;
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case HDR:
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g_siHeadDR = (short int) ispVMDataSize();
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break;
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case TDR:
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g_siTailDR = (short int) ispVMDataSize();
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break;
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case BEGIN_REPEAT:
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siRetCode = ERR_ALGO_FILE_ERROR;
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break;
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case END_REPEAT:
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/*************************************************************
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* *
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* Exit the current repeat frame. *
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* *
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264 |
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*************************************************************/
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siRetCode = ERR_ALGO_FILE_ERROR;
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break;
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case LOOP:
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/*************************************************************
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* *
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* Execute repeat loop. *
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* *
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273 |
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*************************************************************/
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g_usLCOUNTSize = (short int)ispVMDataSize();
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#ifdef VME_DEBUG
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fprintf(stderr, "MaxLoopCount %d\n", g_usLCOUNTSize );
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#endif
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278 |
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/*************************************************************
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279 |
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* *
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280 |
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* Set the repeat index to the first byte in the repeat loop. *
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281 |
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* *
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282 |
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*************************************************************/
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fpgaPushAddr();
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g_iLoopIndex = 0;
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m_loopState = 1;
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288 |
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#if 0
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for ( g_iLoopIndex = 0 ; g_iLoopIndex < g_usLCOUNTSize; g_iLoopIndex++ ) {
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m_loopState = 1;
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291 |
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/*************************************************************
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292 |
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* *
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293 |
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* Initialize the current algorithm index to the beginning of *
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294 |
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* the repeat index before each repeat loop. *
|
295 |
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* *
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296 |
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*************************************************************/
|
297 |
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298 |
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g_iMovingAlgoIndex = g_iLoopMovingIndex;
|
299 |
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g_iMovingDataIndex = g_iLoopDataMovingIndex;
|
300 |
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301 |
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302 |
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/*************************************************************
|
303 |
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* *
|
304 |
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* Make recursive call. *
|
305 |
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* *
|
306 |
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*************************************************************/
|
307 |
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|
308 |
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fprintf(stderr, "I:%d ", g_iLoopIndex);
|
309 |
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siRetCode = ispProcessVME();
|
310 |
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if (!siRetCode) {
|
311 |
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fprintf(stderr, "OK ", siRetCode);
|
312 |
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/*************************************************************
|
313 |
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* *
|
314 |
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* Stop if the complete status matched. *
|
315 |
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* *
|
316 |
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*************************************************************/
|
317 |
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|
318 |
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break;
|
319 |
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}
|
320 |
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}
|
321 |
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m_loopState = 0;
|
322 |
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|
323 |
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if (siRetCode != 0) {
|
324 |
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/*************************************************************
|
325 |
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* *
|
326 |
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* Return if the complete status error. *
|
327 |
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* *
|
328 |
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*************************************************************/
|
329 |
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fprintf(stderr, "ERR2 ");
|
330 |
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return (siRetCode);
|
331 |
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}
|
332 |
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#endif
|
333 |
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break;
|
334 |
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|
335 |
|
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case ENDLOOP:
|
336 |
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/*************************************************************
|
337 |
|
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* *
|
338 |
|
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* End the current loop. *
|
339 |
|
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* *
|
340 |
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*************************************************************/
|
341 |
|
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if(m_loopState) {
|
342 |
|
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if(g_lastRetCode == 0) {
|
343 |
|
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m_loopState = 0;
|
344 |
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break;
|
345 |
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} else {
|
346 |
|
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if(g_iLoopIndex < g_usLCOUNTSize) {
|
347 |
|
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g_iLoopIndex++;
|
348 |
|
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fpgaPopAddr();
|
349 |
|
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} else {
|
350 |
|
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return -1;
|
351 |
|
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}
|
352 |
|
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}
|
353 |
|
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}
|
354 |
|
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break;
|
355 |
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|
356 |
|
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case ENDVME:
|
357 |
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/*************************************************************
|
358 |
|
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* *
|
359 |
|
|
* If the ENDVME token is found and g_iMovingAlgoIndex is *
|
360 |
|
|
* greater than or equal to g_iAlgoSize, then that indicates *
|
361 |
|
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* the end of the chain. If g_iMovingAlgoIndex is less than *
|
362 |
|
|
* g_iAlgoSize, then that indicates that there are still more *
|
363 |
|
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* devices to be processed. *
|
364 |
|
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* *
|
365 |
|
|
*************************************************************/
|
366 |
|
|
TRACE_INFO("DFU: ENDVME\n\r");
|
367 |
|
|
return siRetCode;
|
368 |
|
|
break;
|
369 |
|
|
case LCOUNT:
|
370 |
|
|
/*************************************************************
|
371 |
|
|
* *
|
372 |
|
|
* Get the Maximum LoopCount and store in global variable. *
|
373 |
|
|
* *
|
374 |
|
|
*************************************************************/
|
375 |
|
|
ispVMLCOUNT((unsigned short) ispVMDataSize());
|
376 |
|
|
break;
|
377 |
|
|
case LDELAY:
|
378 |
|
|
/*************************************************************
|
379 |
|
|
* *
|
380 |
|
|
* Get the State,TCK number and Delay time for the poling loop*
|
381 |
|
|
* and store in global variable. *
|
382 |
|
|
* *
|
383 |
|
|
*************************************************************/
|
384 |
|
|
ispVMLDELAY();
|
385 |
|
|
break;
|
386 |
|
|
case LSDR:
|
387 |
|
|
/*************************************************************
|
388 |
|
|
* *
|
389 |
|
|
* Execute repeat poling status loop. *
|
390 |
|
|
* *
|
391 |
|
|
*************************************************************/
|
392 |
|
|
iMovingAlgoIndex = g_iMovingAlgoIndex;
|
393 |
|
|
for (iLoopCount = 0; iLoopCount < g_usLCOUNTSize; iLoopCount++)
|
394 |
|
|
{
|
395 |
|
|
siRetCode = ispVMShift(SDR);
|
396 |
|
|
if (!siRetCode)
|
397 |
|
|
{
|
398 |
|
|
break;
|
399 |
|
|
}
|
400 |
|
|
/*************************************************************
|
401 |
|
|
* *
|
402 |
|
|
* If the status is not done, then move to the setting State *
|
403 |
|
|
* execute the delay and come back and do the checking again *
|
404 |
|
|
* *
|
405 |
|
|
*************************************************************/
|
406 |
|
|
g_iMovingAlgoIndex = iMovingAlgoIndex;
|
407 |
|
|
ispVMStateMachine(DRPAUSE);
|
408 |
|
|
m_loopState = 1;
|
409 |
|
|
ispVMStateMachine(g_ucLDELAYState);
|
410 |
|
|
m_loopState = 0;
|
411 |
|
|
ispVMClocks(g_ucLDELAYTCK);
|
412 |
|
|
ispVMDelay(g_ucLDELAYDelay);
|
413 |
|
|
}
|
414 |
|
|
if (siRetCode != 0)
|
415 |
|
|
{
|
416 |
|
|
return (siRetCode);
|
417 |
|
|
}
|
418 |
|
|
break;
|
419 |
|
|
case signalENABLE:
|
420 |
|
|
/******************************************************************
|
421 |
|
|
* Toggle ispENABLE signal *
|
422 |
|
|
* *
|
423 |
|
|
******************************************************************/
|
424 |
|
|
ucState = fpgaGetByte();
|
425 |
|
|
if (ucState == 0x01)
|
426 |
|
|
writePort(pinENABLE, 0x01);
|
427 |
|
|
else
|
428 |
|
|
writePort(pinENABLE, 0x00);
|
429 |
|
|
ispVMDelay(1);
|
430 |
|
|
break;
|
431 |
|
|
case signalTRST:
|
432 |
|
|
/******************************************************************
|
433 |
|
|
* Toggle TRST signal *
|
434 |
|
|
* *
|
435 |
|
|
******************************************************************/
|
436 |
|
|
ucState = fpgaGetByte();
|
437 |
|
|
if (ucState == 0x01)
|
438 |
|
|
writePort(pinTRST, 0x01);
|
439 |
|
|
else
|
440 |
|
|
writePort(pinTRST, 0x00);
|
441 |
|
|
ispVMDelay(1);
|
442 |
|
|
break;
|
443 |
|
|
default:
|
444 |
|
|
/*************************************************************
|
445 |
|
|
* *
|
446 |
|
|
* Unrecognized opcode. Return with file error. *
|
447 |
|
|
* *
|
448 |
|
|
*************************************************************/
|
449 |
|
|
return ERR_ALGO_FILE_ERROR;
|
450 |
|
|
}
|
451 |
|
|
|
452 |
|
|
g_lastRetCode = siRetCode;
|
453 |
|
|
|
454 |
|
|
if (siRetCode < 0)
|
455 |
|
|
{
|
456 |
|
|
if(m_loopState)
|
457 |
|
|
return 0;
|
458 |
|
|
else return siRetCode;
|
459 |
|
|
}
|
460 |
|
|
}
|
461 |
|
|
|
462 |
|
|
return 0;
|
463 |
|
|
}
|
464 |
|
|
|
465 |
|
|
/*************************************************************
|
466 |
|
|
* *
|
467 |
|
|
* ISPVMDATASIZE *
|
468 |
|
|
* *
|
469 |
|
|
* INPUT: *
|
470 |
|
|
* None. *
|
471 |
|
|
* *
|
472 |
|
|
* RETURN: *
|
473 |
|
|
* This function returns a number indicating the size of *
|
474 |
|
|
* the instruction. *
|
475 |
|
|
* *
|
476 |
|
|
* DESCRIPTION: *
|
477 |
|
|
* This function returns a number. The number is the *
|
478 |
|
|
* value found in SVF commands such as SDR, SIR, HIR, and *
|
479 |
|
|
* etc. For example: *
|
480 |
|
|
* SDR 200 TDI(FFF..F); *
|
481 |
|
|
* The return value would be 200. *
|
482 |
|
|
* *
|
483 |
|
|
*************************************************************/
|
484 |
|
|
|
485 |
|
|
unsigned int ispVMDataSize()
|
486 |
|
|
{
|
487 |
|
|
unsigned int uiSize = 0;
|
488 |
|
|
unsigned char ucCurrentByte = 0;
|
489 |
|
|
unsigned char ucIndex = 0;
|
490 |
|
|
|
491 |
|
|
while ((ucCurrentByte = fpgaGetByte()) & 0x80)
|
492 |
|
|
{
|
493 |
|
|
uiSize |=((unsigned int)(ucCurrentByte & 0x7F)) << ucIndex;
|
494 |
|
|
ucIndex += 7;
|
495 |
|
|
}
|
496 |
|
|
uiSize |=((unsigned int)(ucCurrentByte & 0x7F)) << ucIndex;
|
497 |
|
|
return uiSize;
|
498 |
|
|
}
|
499 |
|
|
|
500 |
|
|
/*************************************************************
|
501 |
|
|
* *
|
502 |
|
|
* ISPVMSHIFTEXEC *
|
503 |
|
|
* *
|
504 |
|
|
* INPUT: *
|
505 |
|
|
* a_uiDataSize: this holds the size of the command. *
|
506 |
|
|
* *
|
507 |
|
|
* RETURN: *
|
508 |
|
|
* Returns 0 if passing, -1 if failing. *
|
509 |
|
|
* *
|
510 |
|
|
* DESCRIPTION: *
|
511 |
|
|
* This function handles the data in the SIR/SDR commands *
|
512 |
|
|
* by either decompressing the data or setting the *
|
513 |
|
|
* respective indexes to point to the appropriate *
|
514 |
|
|
* location in the algo or data array. Note that data *
|
515 |
|
|
* only comes after TDI, DTDI, TDO, DTDO, and MASK. *
|
516 |
|
|
* *
|
517 |
|
|
*************************************************************/
|
518 |
|
|
|
519 |
|
|
short int ispVMShiftExec(unsigned int a_uiDataSize)
|
520 |
|
|
{
|
521 |
|
|
unsigned char ucDataByte = 0;
|
522 |
|
|
|
523 |
|
|
/*************************************************************
|
524 |
|
|
* *
|
525 |
|
|
* Reset the data type register. *
|
526 |
|
|
* *
|
527 |
|
|
*************************************************************/
|
528 |
|
|
|
529 |
|
|
g_usDataType &= ~(TDI_DATA + TDO_DATA + MASK_DATA + DTDI_DATA + DTDO_DATA + COMPRESS_FRAME);
|
530 |
|
|
|
531 |
|
|
/*************************************************************
|
532 |
|
|
* *
|
533 |
|
|
* Convert the size from bits to byte. *
|
534 |
|
|
* *
|
535 |
|
|
*************************************************************/
|
536 |
|
|
|
537 |
|
|
if (a_uiDataSize % 8)
|
538 |
|
|
{
|
539 |
|
|
a_uiDataSize = a_uiDataSize / 8 + 1;
|
540 |
|
|
}
|
541 |
|
|
else
|
542 |
|
|
{
|
543 |
|
|
a_uiDataSize = a_uiDataSize / 8;
|
544 |
|
|
}
|
545 |
|
|
|
546 |
|
|
/*************************************************************
|
547 |
|
|
* *
|
548 |
|
|
* Begin extracting the command. *
|
549 |
|
|
* *
|
550 |
|
|
*************************************************************/
|
551 |
|
|
|
552 |
|
|
while ((ucDataByte = fpgaGetByte()) != CONTINUE)
|
553 |
|
|
{
|
554 |
|
|
switch (ucDataByte)
|
555 |
|
|
{
|
556 |
|
|
case TDI:
|
557 |
|
|
/*************************************************************
|
558 |
|
|
* *
|
559 |
|
|
* Set data type register to indicate TDI data and set TDI *
|
560 |
|
|
* index to the current algorithm location. *
|
561 |
|
|
* *
|
562 |
|
|
*************************************************************/
|
563 |
|
|
g_usDataType |= TDI_DATA;
|
564 |
|
|
g_iTDIIndex = g_iMovingAlgoIndex;
|
565 |
|
|
g_iMovingAlgoIndex += a_uiDataSize;
|
566 |
|
|
break;
|
567 |
|
|
case DTDI:
|
568 |
|
|
/*************************************************************
|
569 |
|
|
* *
|
570 |
|
|
* Set data type register to indicate DTDI data and check the *
|
571 |
|
|
* next byte to make sure it's the DATA byte. DTDI indicates *
|
572 |
|
|
* that the data should be read from the data array, not the *
|
573 |
|
|
* algo array. *
|
574 |
|
|
* *
|
575 |
|
|
*************************************************************/
|
576 |
|
|
g_usDataType |= DTDI_DATA;
|
577 |
|
|
if (fpgaGetByte() != DATA)
|
578 |
|
|
{
|
579 |
|
|
return ERR_ALGO_FILE_ERROR;
|
580 |
|
|
}
|
581 |
|
|
|
582 |
|
|
/*************************************************************
|
583 |
|
|
* *
|
584 |
|
|
* If the COMPRESS flag is set, read the next byte from the *
|
585 |
|
|
* data file array. If the byte is true, then that indicates *
|
586 |
|
|
* the frame was compressable. Note that even though the *
|
587 |
|
|
* overall data file was compressed, certain frames may not *
|
588 |
|
|
* be compressable that is why this byte must be checked. *
|
589 |
|
|
* *
|
590 |
|
|
*************************************************************/
|
591 |
|
|
if (g_usDataType & COMPRESS)
|
592 |
|
|
{
|
593 |
|
|
if (fpgaGetByte())
|
594 |
|
|
{
|
595 |
|
|
g_usDataType |= COMPRESS_FRAME;
|
596 |
|
|
}
|
597 |
|
|
}
|
598 |
|
|
break;
|
599 |
|
|
case TDO:
|
600 |
|
|
/*************************************************************
|
601 |
|
|
* *
|
602 |
|
|
* Set data type register to indicate TDO data and set TDO *
|
603 |
|
|
* index to the current algorithm location. *
|
604 |
|
|
* *
|
605 |
|
|
*************************************************************/
|
606 |
|
|
g_usDataType |= TDO_DATA;
|
607 |
|
|
g_iTDOIndex = g_iMovingAlgoIndex;
|
608 |
|
|
g_iMovingAlgoIndex += a_uiDataSize;
|
609 |
|
|
break;
|
610 |
|
|
case DTDO:
|
611 |
|
|
/*************************************************************
|
612 |
|
|
* *
|
613 |
|
|
* Set data type register to indicate DTDO data and check the *
|
614 |
|
|
* next byte to make sure it's the DATA byte. DTDO indicates *
|
615 |
|
|
* that the data should be read from the data array, not the *
|
616 |
|
|
* algo array. *
|
617 |
|
|
* *
|
618 |
|
|
*************************************************************/
|
619 |
|
|
g_usDataType |= DTDO_DATA;
|
620 |
|
|
if (fpgaGetByte() != DATA)
|
621 |
|
|
{
|
622 |
|
|
return ERR_ALGO_FILE_ERROR;
|
623 |
|
|
}
|
624 |
|
|
|
625 |
|
|
/*************************************************************
|
626 |
|
|
* *
|
627 |
|
|
* If the COMPRESS flag is set, read the next byte from the *
|
628 |
|
|
* data file array. If the byte is true, then that indicates *
|
629 |
|
|
* the frame was compressable. Note that even though the *
|
630 |
|
|
* overall data file was compressed, certain frames may not *
|
631 |
|
|
* be compressable that is why this byte must be checked. *
|
632 |
|
|
* *
|
633 |
|
|
*************************************************************/
|
634 |
|
|
if (g_usDataType & COMPRESS)
|
635 |
|
|
{
|
636 |
|
|
if (fpgaGetByte())
|
637 |
|
|
{
|
638 |
|
|
g_usDataType |= COMPRESS_FRAME;
|
639 |
|
|
}
|
640 |
|
|
}
|
641 |
|
|
break;
|
642 |
|
|
case MASK:
|
643 |
|
|
/*************************************************************
|
644 |
|
|
* *
|
645 |
|
|
* Set data type register to indicate MASK data. Set MASK *
|
646 |
|
|
* location index to current algorithm array position. *
|
647 |
|
|
* *
|
648 |
|
|
*************************************************************/
|
649 |
|
|
g_usDataType |= MASK_DATA;
|
650 |
|
|
g_iMASKIndex = g_iMovingAlgoIndex;
|
651 |
|
|
g_iMovingAlgoIndex += a_uiDataSize;
|
652 |
|
|
break;
|
653 |
|
|
default:
|
654 |
|
|
/*************************************************************
|
655 |
|
|
* *
|
656 |
|
|
* Unrecognized or misplaced opcode. Return error. *
|
657 |
|
|
* *
|
658 |
|
|
*************************************************************/
|
659 |
|
|
return ERR_ALGO_FILE_ERROR;
|
660 |
|
|
}
|
661 |
|
|
}
|
662 |
|
|
|
663 |
|
|
/*************************************************************
|
664 |
|
|
* *
|
665 |
|
|
* Reached the end of the instruction. Return passing. *
|
666 |
|
|
* *
|
667 |
|
|
*************************************************************/
|
668 |
|
|
|
669 |
|
|
return 0;
|
670 |
|
|
}
|
671 |
|
|
|
672 |
|
|
/*************************************************************
|
673 |
|
|
* *
|
674 |
|
|
* ISPVMSHIFT *
|
675 |
|
|
* *
|
676 |
|
|
* INPUT: *
|
677 |
|
|
* a_cCommand: this argument specifies either the SIR or *
|
678 |
|
|
* SDR command. *
|
679 |
|
|
* *
|
680 |
|
|
* RETURN: *
|
681 |
|
|
* The return value indicates whether the SIR/SDR was *
|
682 |
|
|
* processed successfully or not. A return value equal *
|
683 |
|
|
* to or greater than 0 is passing, and less than 0 is *
|
684 |
|
|
* failing. *
|
685 |
|
|
* *
|
686 |
|
|
* DESCRIPTION: *
|
687 |
|
|
* This function is the entry point to execute an SIR or *
|
688 |
|
|
* SDR command to the device. *
|
689 |
|
|
* *
|
690 |
|
|
*************************************************************/
|
691 |
|
|
|
692 |
|
|
short int ispVMShift(char a_cCommand)
|
693 |
|
|
{
|
694 |
|
|
short int siRetCode = 0;
|
695 |
|
|
unsigned int uiDataSize = ispVMDataSize();
|
696 |
|
|
|
697 |
|
|
/*************************************************************
|
698 |
|
|
* *
|
699 |
|
|
* Clear any existing SIR/SDR instructions from the data type *
|
700 |
|
|
* register. *
|
701 |
|
|
* *
|
702 |
|
|
*************************************************************/
|
703 |
|
|
|
704 |
|
|
g_usDataType &= ~(SIR_DATA + SDR_DATA);
|
705 |
|
|
|
706 |
|
|
/*************************************************************
|
707 |
|
|
* *
|
708 |
|
|
* Move state machine to appropriate state depending on the *
|
709 |
|
|
* command. Issue bypass if needed. *
|
710 |
|
|
* *
|
711 |
|
|
*************************************************************/
|
712 |
|
|
|
713 |
|
|
switch (a_cCommand)
|
714 |
|
|
{
|
715 |
|
|
case SIR:
|
716 |
|
|
/*************************************************************
|
717 |
|
|
* *
|
718 |
|
|
* Set the data type register to indicate that it's executing *
|
719 |
|
|
* an SIR instruction. Move state machine to IRPAUSE, *
|
720 |
|
|
* SHIFTIR. If header instruction register exists, then *
|
721 |
|
|
* issue bypass. *
|
722 |
|
|
* *
|
723 |
|
|
*************************************************************/
|
724 |
|
|
g_usDataType |= SIR_DATA;
|
725 |
|
|
ispVMStateMachine(IRPAUSE);
|
726 |
|
|
ispVMStateMachine(SHIFTIR);
|
727 |
|
|
if (g_siHeadIR > 0)
|
728 |
|
|
{
|
729 |
|
|
ispVMBypass(g_siHeadIR);
|
730 |
|
|
sclock();
|
731 |
|
|
}
|
732 |
|
|
break;
|
733 |
|
|
case SDR:
|
734 |
|
|
/*************************************************************
|
735 |
|
|
* *
|
736 |
|
|
* Set the data type register to indicate that it's executing *
|
737 |
|
|
* an SDR instruction. Move state machine to DRPAUSE, *
|
738 |
|
|
* SHIFTDR. If header data register exists, then issue *
|
739 |
|
|
* bypass. *
|
740 |
|
|
* *
|
741 |
|
|
*************************************************************/
|
742 |
|
|
g_usDataType |= SDR_DATA;
|
743 |
|
|
ispVMStateMachine(DRPAUSE);
|
744 |
|
|
ispVMStateMachine(SHIFTDR);
|
745 |
|
|
if (g_siHeadDR > 0)
|
746 |
|
|
{
|
747 |
|
|
ispVMBypass(g_siHeadDR);
|
748 |
|
|
sclock();
|
749 |
|
|
}
|
750 |
|
|
break;
|
751 |
|
|
}
|
752 |
|
|
|
753 |
|
|
/*************************************************************
|
754 |
|
|
* *
|
755 |
|
|
* Set the appropriate index locations. If error then return *
|
756 |
|
|
* error code immediately. *
|
757 |
|
|
* *
|
758 |
|
|
*************************************************************/
|
759 |
|
|
|
760 |
|
|
siRetCode = ispVMShiftExec(uiDataSize);
|
761 |
|
|
|
762 |
|
|
if (siRetCode < 0)
|
763 |
|
|
{
|
764 |
|
|
return siRetCode;
|
765 |
|
|
}
|
766 |
|
|
|
767 |
|
|
/*************************************************************
|
768 |
|
|
* *
|
769 |
|
|
* Execute the command to the device. If TDO exists, then *
|
770 |
|
|
* read from the device and verify. Else only TDI exists *
|
771 |
|
|
* which must send data to the device only. *
|
772 |
|
|
* *
|
773 |
|
|
*************************************************************/
|
774 |
|
|
|
775 |
|
|
if ((g_usDataType & TDO_DATA) ||(g_usDataType & DTDO_DATA))
|
776 |
|
|
{
|
777 |
|
|
siRetCode = ispVMRead(uiDataSize);
|
778 |
|
|
/*************************************************************
|
779 |
|
|
* *
|
780 |
|
|
* A frame of data has just been read and verified. If the *
|
781 |
|
|
* DTDO_DATA flag is set, then check to make sure the next *
|
782 |
|
|
* byte in the data array, which is the last byte of the *
|
783 |
|
|
* frame, is the END_FRAME byte. *
|
784 |
|
|
* *
|
785 |
|
|
*************************************************************/
|
786 |
|
|
if (g_usDataType & DTDO_DATA)
|
787 |
|
|
{
|
788 |
|
|
if (fpgaGetByte() != END_FRAME)
|
789 |
|
|
{
|
790 |
|
|
siRetCode = ERR_DATA_FILE_ERROR;
|
791 |
|
|
}
|
792 |
|
|
}
|
793 |
|
|
}
|
794 |
|
|
else
|
795 |
|
|
{
|
796 |
|
|
ispVMSend(uiDataSize);
|
797 |
|
|
/*************************************************************
|
798 |
|
|
* *
|
799 |
|
|
* A frame of data has just been sent. If the DTDI_DATA flag *
|
800 |
|
|
* is set, then check to make sure the next byte in the data *
|
801 |
|
|
* array, which is the last byte of the frame, is the *
|
802 |
|
|
* END_FRAME byte. *
|
803 |
|
|
* *
|
804 |
|
|
*************************************************************/
|
805 |
|
|
if (g_usDataType & DTDI_DATA)
|
806 |
|
|
{
|
807 |
|
|
if (fpgaGetByte() != END_FRAME)
|
808 |
|
|
{
|
809 |
|
|
siRetCode = ERR_DATA_FILE_ERROR;
|
810 |
|
|
}
|
811 |
|
|
}
|
812 |
|
|
}
|
813 |
|
|
|
814 |
|
|
/*************************************************************
|
815 |
|
|
* *
|
816 |
|
|
* Bypass trailer if it exists. Move state machine to *
|
817 |
|
|
* ENDIR/ENDDR state. *
|
818 |
|
|
* *
|
819 |
|
|
*************************************************************/
|
820 |
|
|
|
821 |
|
|
switch (a_cCommand)
|
822 |
|
|
{
|
823 |
|
|
case SIR:
|
824 |
|
|
if (g_siTailIR > 0)
|
825 |
|
|
{
|
826 |
|
|
sclock();
|
827 |
|
|
ispVMBypass(g_siTailIR);
|
828 |
|
|
}
|
829 |
|
|
ispVMStateMachine(g_cEndIR);
|
830 |
|
|
break;
|
831 |
|
|
case SDR:
|
832 |
|
|
if (g_siTailDR > 0)
|
833 |
|
|
{
|
834 |
|
|
sclock();
|
835 |
|
|
ispVMBypass(g_siTailDR);
|
836 |
|
|
}
|
837 |
|
|
ispVMStateMachine(g_cEndDR);
|
838 |
|
|
break;
|
839 |
|
|
}
|
840 |
|
|
|
841 |
|
|
return siRetCode;
|
842 |
|
|
}
|
843 |
|
|
|
844 |
|
|
/*************************************************************
|
845 |
|
|
* *
|
846 |
|
|
* SCLOCK *
|
847 |
|
|
* *
|
848 |
|
|
* INPUT: *
|
849 |
|
|
* None. *
|
850 |
|
|
* *
|
851 |
|
|
* RETURN: *
|
852 |
|
|
* None. *
|
853 |
|
|
* *
|
854 |
|
|
* DESCRIPTION: *
|
855 |
|
|
* This function applies a HLL pulse to TCK. *
|
856 |
|
|
* *
|
857 |
|
|
*************************************************************/
|
858 |
|
|
|
859 |
|
|
void sclock()
|
860 |
|
|
{
|
861 |
|
|
/*************************************************************
|
862 |
|
|
* *
|
863 |
|
|
* Set TCK to HIGH, LOW, LOW. *
|
864 |
|
|
* *
|
865 |
|
|
*************************************************************/
|
866 |
|
|
|
867 |
|
|
writePort(pinTCK, 0x01);
|
868 |
|
|
writePort(pinTCK, 0x00);
|
869 |
|
|
writePort(pinTCK, 0x00);
|
870 |
|
|
}
|
871 |
|
|
|
872 |
|
|
/*************************************************************
|
873 |
|
|
* *
|
874 |
|
|
* ISPVMREAD *
|
875 |
|
|
* *
|
876 |
|
|
* INPUT: *
|
877 |
|
|
* a_uiDataSize: this argument is the size of the *
|
878 |
|
|
* command. *
|
879 |
|
|
* *
|
880 |
|
|
* RETURN: *
|
881 |
|
|
* The return value is 0 if passing, and -1 if failing. *
|
882 |
|
|
* *
|
883 |
|
|
* DESCRIPTION: *
|
884 |
|
|
* This function reads a data stream from the device and *
|
885 |
|
|
* compares it to the expected TDO. *
|
886 |
|
|
* *
|
887 |
|
|
*************************************************************/
|
888 |
|
|
|
889 |
|
|
short int ispVMRead(unsigned int a_uiDataSize)
|
890 |
|
|
{
|
891 |
|
|
unsigned int uiIndex = 0;
|
892 |
|
|
unsigned short usErrorCount = 0;
|
893 |
|
|
unsigned char ucTDIByte = 0;
|
894 |
|
|
unsigned char ucTDOByte = 0;
|
895 |
|
|
unsigned char ucMaskByte = 0;
|
896 |
|
|
unsigned char ucCurBit = 0;
|
897 |
|
|
|
898 |
|
|
for (uiIndex = 0;uiIndex < a_uiDataSize; uiIndex++)
|
899 |
|
|
{
|
900 |
|
|
if (uiIndex % 8 == 0)
|
901 |
|
|
{
|
902 |
|
|
if ( g_usDataType & TDI_DATA ) {
|
903 |
|
|
/*************************************************************
|
904 |
|
|
* *
|
905 |
|
|
* If the TDI_DATA flag is set, then grab the next byte from *
|
906 |
|
|
* the algo array and increment the TDI index. *
|
907 |
|
|
* *
|
908 |
|
|
*************************************************************/
|
909 |
|
|
ucTDIByte = fpgaGetByte();
|
910 |
|
|
}
|
911 |
|
|
else
|
912 |
|
|
{
|
913 |
|
|
ucTDIByte = 0xFF;
|
914 |
|
|
}
|
915 |
|
|
if (g_usDataType & TDO_DATA)
|
916 |
|
|
{
|
917 |
|
|
/*************************************************************
|
918 |
|
|
* *
|
919 |
|
|
* If the TDO_DATA flag is set, then grab the next byte from *
|
920 |
|
|
* the algo array and increment the TDO index. *
|
921 |
|
|
* *
|
922 |
|
|
*************************************************************/
|
923 |
|
|
ucTDOByte = fpgaGetByte();
|
924 |
|
|
}
|
925 |
|
|
else
|
926 |
|
|
{
|
927 |
|
|
/*************************************************************
|
928 |
|
|
* *
|
929 |
|
|
* If TDO_DATA is not set, then DTDO_DATA must be set. If *
|
930 |
|
|
* the compression counter exists, then the next TDO byte *
|
931 |
|
|
* must be 0xFF. If it doesn't exist, then get next byte *
|
932 |
|
|
* from data file array. *
|
933 |
|
|
* *
|
934 |
|
|
*************************************************************/
|
935 |
|
|
if (g_ucCompressCounter)
|
936 |
|
|
{
|
937 |
|
|
g_ucCompressCounter--;
|
938 |
|
|
ucTDOByte =(unsigned char) 0xFF;
|
939 |
|
|
}
|
940 |
|
|
else
|
941 |
|
|
{
|
942 |
|
|
ucTDOByte = fpgaGetByte();
|
943 |
|
|
|
944 |
|
|
/*************************************************************
|
945 |
|
|
* *
|
946 |
|
|
* If the frame is compressed and the byte is 0xFF, then the *
|
947 |
|
|
* next couple bytes must be read to determine how many *
|
948 |
|
|
* repetitions of 0xFF are there. That value will be stored *
|
949 |
|
|
* in the variable g_ucCompressCounter. *
|
950 |
|
|
* *
|
951 |
|
|
*************************************************************/
|
952 |
|
|
if ((g_usDataType & COMPRESS_FRAME) &&(ucTDOByte ==(unsigned char) 0xFF))
|
953 |
|
|
{
|
954 |
|
|
g_ucCompressCounter = fpgaGetByte();
|
955 |
|
|
g_ucCompressCounter--;
|
956 |
|
|
}
|
957 |
|
|
}
|
958 |
|
|
}
|
959 |
|
|
|
960 |
|
|
if (g_usDataType & MASK_DATA)
|
961 |
|
|
{
|
962 |
|
|
ucMaskByte = fpgaGetByte();
|
963 |
|
|
}
|
964 |
|
|
else
|
965 |
|
|
{
|
966 |
|
|
ucMaskByte =(unsigned char) 0xFF;
|
967 |
|
|
}
|
968 |
|
|
}
|
969 |
|
|
|
970 |
|
|
ucCurBit = readPort();
|
971 |
|
|
|
972 |
|
|
if ((((ucMaskByte << uiIndex % 8) & 0x80) ? 0x01 : 0x00))
|
973 |
|
|
{
|
974 |
|
|
if (ucCurBit != (((ucTDOByte << uiIndex % 8) & 0x80) ? 0x01 : 0x00))
|
975 |
|
|
{
|
976 |
|
|
usErrorCount++;
|
977 |
|
|
}
|
978 |
|
|
}
|
979 |
|
|
|
980 |
|
|
/*************************************************************
|
981 |
|
|
* *
|
982 |
|
|
* Always shift 0x01 into TDI pin when reading. *
|
983 |
|
|
* *
|
984 |
|
|
*************************************************************/
|
985 |
|
|
|
986 |
|
|
writePort(pinTDI, (unsigned char) (((ucTDIByte << uiIndex % 8) & 0x80) ? 0x01 : 0x00));
|
987 |
|
|
|
988 |
|
|
if (uiIndex < a_uiDataSize - 1)
|
989 |
|
|
{
|
990 |
|
|
sclock();
|
991 |
|
|
}
|
992 |
|
|
}
|
993 |
|
|
|
994 |
|
|
if (usErrorCount > 0)
|
995 |
|
|
{
|
996 |
|
|
return -1;
|
997 |
|
|
}
|
998 |
|
|
|
999 |
|
|
return 0;
|
1000 |
|
|
}
|
1001 |
|
|
|
1002 |
|
|
/*************************************************************
|
1003 |
|
|
* *
|
1004 |
|
|
* ISPVMSEND *
|
1005 |
|
|
* *
|
1006 |
|
|
* INPUT: *
|
1007 |
|
|
* a_uiDataSize: this argument is the size of the *
|
1008 |
|
|
* command. *
|
1009 |
|
|
* *
|
1010 |
|
|
* RETURN: *
|
1011 |
|
|
* None. *
|
1012 |
|
|
* *
|
1013 |
|
|
* DESCRIPTION: *
|
1014 |
|
|
* This function sends a data stream to the device. *
|
1015 |
|
|
* *
|
1016 |
|
|
*************************************************************/
|
1017 |
|
|
|
1018 |
|
|
void ispVMSend(unsigned int a_uiDataSize)
|
1019 |
|
|
{
|
1020 |
|
|
unsigned int iIndex;
|
1021 |
|
|
unsigned char ucCurByte = 0;
|
1022 |
|
|
unsigned char ucBitState = 0;
|
1023 |
|
|
|
1024 |
|
|
/*************************************************************
|
1025 |
|
|
* *
|
1026 |
|
|
* Begin processing the data to the device. *
|
1027 |
|
|
* *
|
1028 |
|
|
*************************************************************/
|
1029 |
|
|
|
1030 |
|
|
for (iIndex = 0;iIndex < a_uiDataSize; iIndex++)
|
1031 |
|
|
{
|
1032 |
|
|
if (iIndex % 8 == 0)
|
1033 |
|
|
{
|
1034 |
|
|
if (g_usDataType & TDI_DATA)
|
1035 |
|
|
{
|
1036 |
|
|
/*************************************************************
|
1037 |
|
|
* *
|
1038 |
|
|
* If the TDI_DATA flag is set, then grab the next byte from *
|
1039 |
|
|
* the algo array and increment the TDI index. *
|
1040 |
|
|
* *
|
1041 |
|
|
*************************************************************/
|
1042 |
|
|
ucCurByte = fpgaGetByte();
|
1043 |
|
|
}
|
1044 |
|
|
else
|
1045 |
|
|
{
|
1046 |
|
|
/*************************************************************
|
1047 |
|
|
* *
|
1048 |
|
|
* If TDI_DATA flag is not set, then DTDI_DATA flag must have *
|
1049 |
|
|
* already been set. If the compression counter exists, then *
|
1050 |
|
|
* the next TDI byte must be 0xFF. If it doesn't exist, then *
|
1051 |
|
|
* get next byte from data file array. *
|
1052 |
|
|
* *
|
1053 |
|
|
*************************************************************/
|
1054 |
|
|
if (g_ucCompressCounter)
|
1055 |
|
|
{
|
1056 |
|
|
g_ucCompressCounter--;
|
1057 |
|
|
ucCurByte =(unsigned char) 0xFF;
|
1058 |
|
|
}
|
1059 |
|
|
else
|
1060 |
|
|
{
|
1061 |
|
|
ucCurByte = fpgaGetByte();
|
1062 |
|
|
|
1063 |
|
|
/*************************************************************
|
1064 |
|
|
* *
|
1065 |
|
|
* If the frame is compressed and the byte is 0xFF, then the *
|
1066 |
|
|
* next couple bytes must be read to determine how many *
|
1067 |
|
|
* repetitions of 0xFF are there. That value will be stored *
|
1068 |
|
|
* in the variable g_ucCompressCounter. *
|
1069 |
|
|
* *
|
1070 |
|
|
*************************************************************/
|
1071 |
|
|
|
1072 |
|
|
if ((g_usDataType & COMPRESS_FRAME) &&(ucCurByte ==(unsigned char) 0xFF))
|
1073 |
|
|
{
|
1074 |
|
|
g_ucCompressCounter = fpgaGetByte();
|
1075 |
|
|
g_ucCompressCounter--;
|
1076 |
|
|
}
|
1077 |
|
|
}
|
1078 |
|
|
}
|
1079 |
|
|
}
|
1080 |
|
|
|
1081 |
|
|
ucBitState =(unsigned char)(((ucCurByte << iIndex % 8) & 0x80) ? 0x01 : 0x00);
|
1082 |
|
|
writePort(pinTDI, ucBitState);
|
1083 |
|
|
|
1084 |
|
|
if (iIndex < a_uiDataSize - 1)
|
1085 |
|
|
{
|
1086 |
|
|
sclock();
|
1087 |
|
|
}
|
1088 |
|
|
}
|
1089 |
|
|
}
|
1090 |
|
|
|
1091 |
|
|
/*************************************************************
|
1092 |
|
|
* *
|
1093 |
|
|
* ISPVMSTATEMACHINE *
|
1094 |
|
|
* *
|
1095 |
|
|
* INPUT: *
|
1096 |
|
|
* a_cNextState: this is the opcode of the next JTAG *
|
1097 |
|
|
* state. *
|
1098 |
|
|
* *
|
1099 |
|
|
* RETURN: *
|
1100 |
|
|
* This functions returns 0 when passing, and -1 when *
|
1101 |
|
|
* failure occurs. *
|
1102 |
|
|
* *
|
1103 |
|
|
* DESCRIPTION: *
|
1104 |
|
|
* This function is called to move the device into *
|
1105 |
|
|
* different JTAG states. *
|
1106 |
|
|
* *
|
1107 |
|
|
*************************************************************/
|
1108 |
|
|
|
1109 |
|
|
void ispVMStateMachine(char a_cNextState)
|
1110 |
|
|
{
|
1111 |
|
|
int cPathIndex, cStateIndex;
|
1112 |
|
|
if ((g_cCurrentJTAGState == DRPAUSE) &&(a_cNextState== DRPAUSE) && m_loopState)
|
1113 |
|
|
{
|
1114 |
|
|
}
|
1115 |
|
|
else if ((g_cCurrentJTAGState == a_cNextState) &&(g_cCurrentJTAGState != RESET))
|
1116 |
|
|
{
|
1117 |
|
|
return;
|
1118 |
|
|
}
|
1119 |
|
|
|
1120 |
|
|
for (cStateIndex = 0;cStateIndex < 25; cStateIndex++)
|
1121 |
|
|
{
|
1122 |
|
|
if ((g_cCurrentJTAGState == iStates[cStateIndex].CurState) &&(a_cNextState == iStates[cStateIndex].NextState))
|
1123 |
|
|
{
|
1124 |
|
|
break;
|
1125 |
|
|
}
|
1126 |
|
|
}
|
1127 |
|
|
g_cCurrentJTAGState = a_cNextState;
|
1128 |
|
|
for (cPathIndex = 0;cPathIndex < iStates[cStateIndex].Pulses; cPathIndex++)
|
1129 |
|
|
{
|
1130 |
|
|
if ((iStates[cStateIndex].Pattern << cPathIndex) & 0x80)
|
1131 |
|
|
{
|
1132 |
|
|
writePort(pinTMS, (unsigned char) 0x01);
|
1133 |
|
|
}
|
1134 |
|
|
else
|
1135 |
|
|
{
|
1136 |
|
|
writePort(pinTMS, (unsigned char) 0x00);
|
1137 |
|
|
}
|
1138 |
|
|
sclock();
|
1139 |
|
|
}
|
1140 |
|
|
|
1141 |
|
|
writePort(pinTDI, 0x00);
|
1142 |
|
|
writePort(pinTMS, 0x00);
|
1143 |
|
|
}
|
1144 |
|
|
|
1145 |
|
|
/*************************************************************
|
1146 |
|
|
* *
|
1147 |
|
|
* ISPVMCLOCKS *
|
1148 |
|
|
* *
|
1149 |
|
|
* INPUT: *
|
1150 |
|
|
* a_usClocks: number of clocks to apply. *
|
1151 |
|
|
* *
|
1152 |
|
|
* RETURN: *
|
1153 |
|
|
* None. *
|
1154 |
|
|
* *
|
1155 |
|
|
* DESCRIPTION: *
|
1156 |
|
|
* This procedure applies the specified number of pulses *
|
1157 |
|
|
* to TCK. *
|
1158 |
|
|
* *
|
1159 |
|
|
*************************************************************/
|
1160 |
|
|
|
1161 |
|
|
void ispVMClocks(unsigned int a_uiClocks)
|
1162 |
|
|
{
|
1163 |
|
|
for (; a_uiClocks > 0; a_uiClocks--)
|
1164 |
|
|
{
|
1165 |
|
|
sclock();
|
1166 |
|
|
}
|
1167 |
|
|
}
|
1168 |
|
|
|
1169 |
|
|
/*************************************************************
|
1170 |
|
|
* *
|
1171 |
|
|
* ISPVMBYPASS *
|
1172 |
|
|
* *
|
1173 |
|
|
* INPUT: *
|
1174 |
|
|
* a_siLength: this argument is the length of the *
|
1175 |
|
|
* command. *
|
1176 |
|
|
* *
|
1177 |
|
|
* RETURN: *
|
1178 |
|
|
* None. *
|
1179 |
|
|
* *
|
1180 |
|
|
* DESCRIPTION: *
|
1181 |
|
|
* This function takes care of the HIR, HDR, TIR, and TDR *
|
1182 |
|
|
* for the purpose of putting the other devices into *
|
1183 |
|
|
* bypass mode. *
|
1184 |
|
|
* *
|
1185 |
|
|
*************************************************************/
|
1186 |
|
|
|
1187 |
|
|
void ispVMBypass(unsigned int a_uiLength)
|
1188 |
|
|
{
|
1189 |
|
|
/*************************************************************
|
1190 |
|
|
* *
|
1191 |
|
|
* Issue a_siLength number of 0x01 to the TDI pin to bypass. *
|
1192 |
|
|
* *
|
1193 |
|
|
*************************************************************/
|
1194 |
|
|
|
1195 |
|
|
for (; a_uiLength > 1; a_uiLength--)
|
1196 |
|
|
{
|
1197 |
|
|
writePort(pinTDI, (char) 0x01);
|
1198 |
|
|
sclock();
|
1199 |
|
|
}
|
1200 |
|
|
|
1201 |
|
|
writePort(pinTDI, (char) 0x01);
|
1202 |
|
|
}
|
1203 |
|
|
/*************************************************************
|
1204 |
|
|
* *
|
1205 |
|
|
* ispVMLCOUNT *
|
1206 |
|
|
* *
|
1207 |
|
|
* INPUT: *
|
1208 |
|
|
* a_usCountSize: The maximum number of loop required to *
|
1209 |
|
|
* poling the status *
|
1210 |
|
|
* *
|
1211 |
|
|
* *
|
1212 |
|
|
* DESCRIPTION: *
|
1213 |
|
|
* This function is set the maximum loop count *
|
1214 |
|
|
* *
|
1215 |
|
|
*************************************************************/
|
1216 |
|
|
|
1217 |
|
|
void ispVMLCOUNT(unsigned short a_usCountSize)
|
1218 |
|
|
{
|
1219 |
|
|
g_usLCOUNTSize = a_usCountSize;
|
1220 |
|
|
}
|
1221 |
|
|
/*************************************************************
|
1222 |
|
|
* *
|
1223 |
|
|
* ispVMLDELAY *
|
1224 |
|
|
* *
|
1225 |
|
|
* *
|
1226 |
|
|
* DESCRIPTION: *
|
1227 |
|
|
* This function is set the delay state, number of TCK and*
|
1228 |
|
|
* the delay time for poling the status *
|
1229 |
|
|
* *
|
1230 |
|
|
*************************************************************/
|
1231 |
|
|
void ispVMLDELAY()
|
1232 |
|
|
{
|
1233 |
|
|
g_ucLDELAYState = IDLE;
|
1234 |
|
|
g_ucLDELAYDelay = 0;
|
1235 |
|
|
g_ucLDELAYTCK = 0;
|
1236 |
|
|
while (1)
|
1237 |
|
|
{
|
1238 |
|
|
unsigned char bytedata = fpgaGetByte();
|
1239 |
|
|
switch (bytedata)
|
1240 |
|
|
{
|
1241 |
|
|
case STATE: /*step BSCAN state machine to specified state*/
|
1242 |
|
|
g_ucLDELAYState = fpgaGetByte();
|
1243 |
|
|
break;
|
1244 |
|
|
case WAIT: /*opcode to wait for specified time in us or ms*/
|
1245 |
|
|
g_ucLDELAYDelay = (short int) ispVMDataSize();
|
1246 |
|
|
break;
|
1247 |
|
|
case TCK: /*pulse TCK signal the specified time*/
|
1248 |
|
|
g_ucLDELAYTCK = (short int) ispVMDataSize();
|
1249 |
|
|
break;
|
1250 |
|
|
case ENDSTATE:
|
1251 |
|
|
return;
|
1252 |
|
|
break;
|
1253 |
|
|
}
|
1254 |
|
|
}
|
1255 |
|
|
}
|