osmo-sdr/firmware/usb-dfu-project/slimpro.c @ master
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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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|
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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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|
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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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*************************************************************/
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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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*************************************************************/
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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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*************************************************************/
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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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*************************************************************/
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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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/*************************************************************
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* *
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* Set the repeat index to the first byte in the repeat loop. *
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* *
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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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|
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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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/*************************************************************
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* *
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* Initialize the current algorithm index to the beginning of *
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* the repeat index before each repeat loop. *
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* *
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*************************************************************/
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g_iMovingAlgoIndex = g_iLoopMovingIndex;
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g_iMovingDataIndex = g_iLoopDataMovingIndex;
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/*************************************************************
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* *
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* Make recursive call. *
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* *
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*************************************************************/
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fprintf(stderr, "I:%d ", g_iLoopIndex);
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siRetCode = ispProcessVME();
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if (!siRetCode) {
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fprintf(stderr, "OK ", siRetCode);
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/*************************************************************
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* *
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* Stop if the complete status matched. *
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* *
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316 |
*************************************************************/
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317 |
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break;
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}
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320 |
}
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m_loopState = 0;
|
322 |
|
323 |
if (siRetCode != 0) {
|
324 |
/*************************************************************
|
325 |
* *
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* Return if the complete status error. *
|
327 |
* *
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328 |
*************************************************************/
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fprintf(stderr, "ERR2 ");
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330 |
return (siRetCode);
|
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}
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#endif
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break; |
334 |
|
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case ENDLOOP: |
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/*************************************************************
|
337 |
* *
|
338 |
* End the current loop. *
|
339 |
* *
|
340 |
*************************************************************/
|
341 |
if(m_loopState) { |
342 |
if(g_lastRetCode == 0) { |
343 |
m_loopState = 0; |
344 |
break; |
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} else { |
346 |
if(g_iLoopIndex < g_usLCOUNTSize) { |
347 |
g_iLoopIndex++; |
348 |
fpgaPopAddr(); |
349 |
} else { |
350 |
return -1; |
351 |
}
|
352 |
}
|
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}
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break; |
355 |
|
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case ENDVME: |
357 |
/*************************************************************
|
358 |
* *
|
359 |
* If the ENDVME token is found and g_iMovingAlgoIndex is *
|
360 |
* greater than or equal to g_iAlgoSize, then that indicates *
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361 |
* the end of the chain. If g_iMovingAlgoIndex is less than *
|
362 |
* g_iAlgoSize, then that indicates that there are still more *
|
363 |
* devices to be processed. *
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364 |
* *
|
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 |
}
|