SIM card related Projects » SIMtrace 2

When an OSMO_ASSERT() happens the firmware doesn't do the USB init correct.
The remsim client will fail with LIBUSB_TRANSFER_STALL when setting configuration.
It can be recovered by call 'R' via serial.

The differences between the assert() and 'R' via serial are:

- 'R' calls USBD_Disconnect() which assert() doesn't.
- assert() will run into a `while(1);` loop

assert()¶

=============================================================================
SIMtrace2 firmware 0.8.1.20-8680, BOARD=owhw, APP=cardem
(C) 2010-2019 by Harald Welte, 2018-2019 by Kevin Redon
=============================================================================
-I- Chip ID: 0x28900960 (Ext 0x00000000)
-I- Serial Nr. XXX
-I- Reset Cause: software reset (processor reset required by the software)
-I- USB init...
USBD_Init
?       ?       help
        R       reset SAM3                                                                                                                               

'R' serial¶

=============================================================================
SIMtrace2 firmware 0.8.1.20-8680, BOARD=owhw, APP=cardem
(C) 2010-2019 by Harald Welte, 2018-2019 by Kevin Redon
=============================================================================
-I- Chip ID: 0x28900960 (Ext 0x00000000)
-I- Serial Nr. XXX
-I- Reset Cause: software reset (processor reset required by the software)
-I- USB init...
USBD_Init
SetAddr(11) -W- Sta 0x8880C [0] -W- _ -W- Sta 0x888A8 [0] -W- _ -W- Sta 0x888A8 [0] -W- _ SetCfg(1) cfgChanged1 -I- calling configure of all configurations...
-I- calling init of config 1...
-E- Somebody forgot to call sim_switch_init()
-I- Modem 0: physical SIM
-E- Invalid SIM0
-I- Modem 1: physical SIM
-E- Invalid SIM1
-I- entering main loop...
-I- USB is now configured