Hi All,
I have an interesting boot failure on UBL code. What I have been working on is custom DM365 and it is a kind of video recorder after H264 compression, simply speaking. For stress test, we make a test schedule which lets DM365 recode H264 video data for given time, e.g 3 minutes and have POR reset. The reset is done by external MSP430. It works fine first couple of hours, then booting fails on DEVICE_LPSCTransition function of UBL code. It has been observed by JTAG and CCS.
The exact location where the UBL is spinning is below.
void DEVICE_LPSCTransition(Uint8 module, Uint8 domain, Uint8 state)
{
// Wait for any outstanding transition to complete
while ( (PSC->PTSTAT) & (0x00000001 << domain) );
// If we are already in that state, just return
if (((PSC->MDSTAT[module]) & 0x1F) == state) return;
// Perform transition
PSC->MDCTL[module] = ((PSC->MDCTL[module]) & (0xFFFFFFE0)) | (state);
PSC->PTCMD |= (0x00000001 << domain);
// Wait for transition to complete
while ( (PSC->PTSTAT) & (0x00000001 << domain) );
// Wait and verify the state
while (((PSC->MDSTAT[module]) & 0x1F) != state);
}
where module is LPSC_DDR2(13) and state is PSC_ENABLE(3). The register value (PSC->MDSTAT[module]) & 0x1F) is not equal. Also, If the PC count is changed to next instuction, usually booting is successful as long as MDSTAT is "ready to go" like 0xXXXX01FXX. Normally a couple of Watchdog reset fixes the issue.
Any suggestion and advice will be helpful.
Regards,
SK
