diff options
Diffstat (limited to 'ports/esp8266/main.c')
| -rw-r--r-- | ports/esp8266/main.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/ports/esp8266/main.c b/ports/esp8266/main.c index 2dd7c1dece..da712fce9b 100644 --- a/ports/esp8266/main.c +++ b/ports/esp8266/main.c @@ -49,6 +49,64 @@ static char heap[38 * 1024]; +#if MICROPY_HW_HARD_FAULT_DEBUG + +static void format_hex(uint32_t hex, char *buffer) { + static const char table[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; + int offset = 7; + uint32_t value = hex; + while (offset >= 0) { + buffer[offset--] = table[value & 0x0F]; + value >>= 4; + } +} + +static void print_reset_info(void) { + struct rst_info *rst_info = system_get_rst_info(); + if ((rst_info->reason == REASON_WDT_RST) || (rst_info->reason == REASON_EXCEPTION_RST) || (rst_info->reason == REASON_SOFT_WDT_RST)) { + char buffer[8]; + mp_hal_stdout_tx_str("\r\n\r\nThe system restarted due to an error.\r\n\r\nReason: "); + switch (rst_info->reason) { + case REASON_WDT_RST: + mp_hal_stdout_tx_str("WDT"); + break; + + case REASON_EXCEPTION_RST: + mp_hal_stdout_tx_str("EXCEPTION"); + break; + + case REASON_SOFT_WDT_RST: + mp_hal_stdout_tx_str("SOFT_WDT"); + break; + + default: + assert(!"Should not ever get here."); + break; + } + mp_hal_stdout_tx_str(" Cause: "); + format_hex(rst_info->exccause, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str(" EPC1: "); + format_hex(rst_info->epc1, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str(" EPC2: "); + format_hex(rst_info->epc2, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str(" EPC3: "); + format_hex(rst_info->epc3, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str(" Exception Vector address: "); + format_hex(rst_info->excvaddr, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str(" DEPC: "); + format_hex(rst_info->depc, buffer); + mp_hal_stdout_tx_strn(buffer, sizeof(buffer)); + mp_hal_stdout_tx_str("\r\n\r\n"); + } +} + +#endif + static void mp_reset(void) { mp_stack_set_top((void *)0x40000000); mp_stack_set_limit(8192); @@ -114,6 +172,10 @@ void init_done(void) { pyexec_event_repl_init(); #endif + #if MICROPY_HW_HARD_FAULT_DEBUG + print_reset_info(); + #endif + #if !MICROPY_REPL_EVENT_DRIVEN soft_reset: for (;;) { |