I am using a BC127, with version V5.0, and am trying to communicate with it such that I can perform a firmware upgrade. However, after (almost exactly) 1 second, the module resets. As a result, I get a reset message on my Putty terminal. There seems to be no external signal (that I can think of) that are influencing this. When I observe the Tx pin of the BC127, I get the image below.
However, when I continuously send command “RESET” to the board, I get the image seen below. It looks like the “RESET” message is eliminating the 824ms section of the wave, indicating to me a software reset is occurring every 1 second when there is no user input (the hardware pin RST# consistently remains high).
Is there any circumstance that would cause a 1 second software reset?