Only erase RTC RAM if sleep mode doesn't look valid (#619)

Source: http://esp8266.ru/forum/threads/mem-check-fail.168/#post-7354
esp8266 · Aug 5, 2015 · ac459eb · ac459eb
1 parent 59a9f85
commit ac459eb
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_phy.c b/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_phy.c
@@ -261,7 +261,10 @@ void user_rf_pre_init() {
     // *((volatile uint32_t*) 0x60000710) = 0;
 
     volatile uint32_t* rtc_reg = (volatile uint32_t*) 0x60001000;
-    rtc_reg[30] = 0;
+    if((rtc_reg[24] >> 16) > 4) {
+        rtc_reg[24] &= 0xFFFF;
+        rtc_reg[30] = 0;
+    }
 
     system_set_os_print(0);
     __run_user_rf_pre_init();