Make detectBaudrate safe from SYS context, for what it's worth.

dok-net · dok-net · commit 17c8d1e61d72 · 2021-04-28T14:11:56.000+02:00
diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
@@ -146,8 +146,7 @@ unsigned long HardwareSerial::detectBaudrate(time_t timeoutMillis)
         if ((detectedBaudrate = testBaudrate())) {
           break;
         }
-        yield();
-        delay(100);
+        esp_delay(100);
     }
     return detectedBaudrate;
 }

Original file line number	Diff line number	Diff line change
`@@ -146,8 +146,7 @@ unsigned long HardwareSerial::detectBaudrate(time_t timeoutMillis)`
`146`	`146`	`if ((detectedBaudrate = testBaudrate())) {`
`147`	`147`	`break;`
`148`	`148`	`}`
`149`		`- yield();`
`150`		`- delay(100);`
	`149`	`+ esp_delay(100);`
`151`	`150`	`}`
`152`	`151`	`return detectedBaudrate;`
`153`	`152`	`}`