diff options
Diffstat (limited to 'src/stm32l4xx_it.c')
| -rw-r--r-- | src/stm32l4xx_it.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/stm32l4xx_it.c b/src/stm32l4xx_it.c index e54a192..228dc67 100644 --- a/src/stm32l4xx_it.c +++ b/src/stm32l4xx_it.c @@ -12,12 +12,16 @@ void serial_puts(const char *s) void perror(const char *s)
{
- //extern task_t *current;
+ extern uint32_t heap_used;
serial_puts(s);
- //char buf[200];
- //snprintf(buf, 200, "xPSR: %x\r\nPC: %x\r\nLR: %x\r\n", current->sp[0],
- // current->sp[1], current->sp[2]);
- //serial_puts(buf);
+
+ static char buf[200];
+ uint32_t *psp;
+ asm("mrs %0, psp" : "=r"(psp));
+
+ snprintf(buf, 200, "\r\nPC: %x\r\nLR: %x\r\nmemused: %db\r\n",
+ psp[6], psp[5], heap_used);
+ serial_puts(buf);
}
__attribute__ ((naked))
|