ResetReason
When the system restarts, the system registers contain the reason for the restart at boot time in a board specific manner. This API provides a generic method of fetching the reason for the restart.
You can use the ResetReason interface to determine the cause of the last system reset in a portable fashion.
ResetReason class reference
| Static Public Member Functions | |
| static reset_reason_t | get () |
| Get the platform independent reason code for the last system reset. More... | |
| static uint32_t | get_raw () |
| Get the platform specific reason code for the last system reset. More... | |
ResetReason example
Check the cause of the last system reset:
#include "mbed.h"
#include "ResetReason.h"
#include <string>
std::string reset_reason_to_string(const reset_reason_t reason)
{
switch (reason) {
case RESET_REASON_POWER_ON:
return "Power On";
case RESET_REASON_PIN_RESET:
return "Hardware Pin";
case RESET_REASON_SOFTWARE:
return "Software Reset";
case RESET_REASON_WATCHDOG:
return "Watchdog";
default:
return "Other Reason";
}
}
int main()
{
const reset_reason_t reason = ResetReason::get();
printf("Last system reset reason: %s\r\n", reset_reason_to_string(reason).c_str());
}