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timeoutWait function doesn't work with ESP8266 #23
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Yes I noticed the same when the printer printed: "Soft WDT reset ctx: cont, followed by a stack dump" after running throe a couple of lines from the example program provided. This is because hardware serial on the ESP8266 sends out debug information 'as a last will' ;-) A (barley working) workaround is to use 'yield();' in the example program but any longer transmission (like the picture) still fails. |
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May 25, 2017
Basic fix for issue adafruit#23
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Adding yield() enables the ESP8266 to do other things while waiting and prevents reboots due to watchdog timer timeouts.. I had a hard tme to find out that the while-loop was the cause for the reboots.... That´s exactly what yield() is for -> Passes control to other tasks when called. Ideally yield() should be used in functions that will take awhile to complete.
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The timeoutWait function uses:
while((long)(micros() - resumeTime) < 0L); // (syntax is rollover-proof)This won't work with ESP8266 because it leaves the processor no time to do other things.
For ESP8266 it should be changed to a delay() call.
I use delay(10) and that works fine.
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