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Make hardfault handler a bit more verbose

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This commit is contained in:
Harald Welte
2017-05-07 22:44:31 +02:00
parent 28174982b6
commit f8c83a4d64
1 changed files with 47 additions and 1 deletions
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48
firmware/atmel_softpack_libraries/libchip_sam3s/source/exceptions.c
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@@ -81,7 +81,7 @@ struct hardfault_args {
void hard_fault_handler_c(struct hardfault_args *args)
{
printf("HardFault\r\n");
printf("\r\nHardFault\r\n");
printf("R0=%08x, R1=%08x, R2=%08x, R3=%08x, R12=%08x\r\n",
args->r0, args->r1, args->r2, args->r3, args->r12);
printf("LR[R14]=%08x, PC[R15]=%08x, PSR=%08x\r\n",
@@ -90,6 +90,52 @@ void hard_fault_handler_c(struct hardfault_args *args)
SCB->BFAR, SCB->CFSR, SCB->HFSR);
printf("DFSR=%08x, AFSR=%08x, SHCSR=%08x\r\n",
SCB->DFSR, SCB->CFSR, SCB->SHCSR);
if (SCB->HFSR & 0x40000000)
printf("FORCED ");
if (SCB->HFSR & 0x00000002)
printf("VECTTBL ");
uint32_t ufsr = SCB->CFSR >> 16;
if (ufsr & 0x0200)
printf("DIVBYZERO ");
if (ufsr & 0x0100)
printf("UNALIGNED ");
if (ufsr & 0x0008)
printf("NOCP ");
if (ufsr & 0x0004)
printf("INVPC ");
if (ufsr & 0x0002)
printf("INVSTATE ");
if (ufsr & 0x0001)
printf("UNDEFINSTR ");
uint32_t bfsr = (SCB->CFSR >> 8) & 0xff;
if (bfsr & 0x80)
printf("BFARVALID ");
if (bfsr & 0x10)
printf("STKERR ");
if (bfsr & 0x08)
printf("UNSTKERR ");
if (bfsr & 0x04)
printf("IMPRECISERR ");
if (bfsr & 0x02)
printf("PRECISERR ");
if (bfsr & 0x01)
printf("IBUSERR ");
uint32_t mmfsr = (SCB->CFSR & 0xff);
if (mmfsr & 0x80)
printf("MMARVALID ");
if (mmfsr & 0x10)
printf("MSTKERR ");
if (mmfsr & 0x08)
printf("MUNSTKERR ");
if (mmfsr & 0x02)
printf("DACCVIOL ");
if (mmfsr & 0x01)
printf("IACCVIOL ");
while ( 1 ) ;
}