diff --git a/cores/esp8266/Esp.cpp b/cores/esp8266/Esp.cpp
index f59513be40..a0e525f2bb 100644
--- a/cores/esp8266/Esp.cpp
+++ b/cores/esp8266/Esp.cpp
@@ -468,23 +468,24 @@ bool EspClass::checkFlashCRC() {
String EspClass::getResetReason(void) {
- char buff[32];
- if (resetInfo.reason == REASON_DEFAULT_RST) { // normal startup by power on
- strcpy_P(buff, PSTR("Power on"));
- } else if (resetInfo.reason == REASON_WDT_RST) { // hardware watch dog reset
- strcpy_P(buff, PSTR("Hardware Watchdog"));
- } else if (resetInfo.reason == REASON_EXCEPTION_RST) { // exception reset, GPIO status won’t change
- strcpy_P(buff, PSTR("Exception"));
- } else if (resetInfo.reason == REASON_SOFT_WDT_RST) { // software watch dog reset, GPIO status won’t change
- strcpy_P(buff, PSTR("Software Watchdog"));
- } else if (resetInfo.reason == REASON_SOFT_RESTART) { // software restart ,system_restart , GPIO status won’t change
- strcpy_P(buff, PSTR("Software/System restart"));
- } else if (resetInfo.reason == REASON_DEEP_SLEEP_AWAKE) { // wake up from deep-sleep
- strcpy_P(buff, PSTR("Deep-Sleep Wake"));
- } else if (resetInfo.reason == REASON_EXT_SYS_RST) { // external system reset
- strcpy_P(buff, PSTR("External System"));
- } else {
- strcpy_P(buff, PSTR("Unknown"));
+ const __FlashStringHelper* buff;
+
+ switch(resetInfo.reason) {
+ // normal startup by power on
+ case REASON_DEFAULT_RST: buff = F("Power On"); break;
+ // hardware watch dog reset
+ case REASON_WDT_RST: buff = F("Hardware Watchdog"); break;
+ // exception reset, GPIO status won’t change
+ case REASON_EXCEPTION_RST: buff = F("Exception"); break;
+ // software watch dog reset, GPIO status won’t change
+ case REASON_SOFT_WDT_RST: buff = F("Software Watchdog"); break;
+ // software restart ,system_restart , GPIO status won’t change
+ case REASON_SOFT_RESTART: buff = F("Software/System restart"); break;
+ // wake up from deep-sleep
+ case REASON_DEEP_SLEEP_AWAKE: buff = F("Deep-Sleep Wake"); break;
+ // // external system reset
+ case REASON_EXT_SYS_RST: buff = F("External System"); break;
+ default: buff = F("Unknown"); break;
}
return String(buff);
}
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