Andreas Schweigstill wrote:
Hello!
DI BACCO ANTONIO - technolabs schrieb:
Thank you for your suggestions but my board is an evaluation board named adder875.
Many development boards do not have a quality which would be acceptable for industrial or even consumer products... Forgotten pull-up and series resistors or capacitors are quite common.
Keep in mind that many of those boards have been designed before the processor chip has been available. And marketing/sales departments force development to release such a board to customers long before it has been tested.
I have never seen a development board from a semiconductor manufacturer which doesn't contains any bugs.
With best regards Andreas Schweigstill
You trimmed the critical sentence "It worked and ***after connecting a wiggler with the connector upside down*** exibihts this strange behaviour."
Sounds like his board was damaged by operator error (improperly connecting to the BDI connector). My guess is that the pullup resistor lost its smoke.
gvb