06-04-2023, 03:50 PM
So, it seems to randomly work at 600 baud. I went back to v5.00 firmware and the same problem exists. I then tried a simple example serial bridge and the same thing happens, but only at 600 baud. I think that this is some type of bug in the ESP8266 OS. The bad thing is that I can't debug it or even look at the complete stack trace to know where the problem is because at 600 baud the crash report is too slow to complete before the CPU reboots itself! The report should contain 28 more lines, which are needed in order to determine the problem. 
I ran into the same issue at 300 baud, but less frequent, and 110 baud or higher than 600 never had a problem. I am not sure what can be done to debug this issue because this error (29) is due to something in the OS storing data where it does not belong.
I ran into the same issue at 300 baud, but less frequent, and 110 baud or higher than 600 never had a problem. I am not sure what can be done to debug this issue because this error (29) is due to something in the OS storing data where it does not belong.