XMC™ Forum Discussions

[Rasenburger]

Hi, I am using XMC1400 Bootkit and Modus Toolbox. I am setting signals according to UART inputs (first two tracks) on 4 pins (6,7,8,9) of port 4 all defined in the same way on the BSP design.modus configurator and controlled with 4 identical pieces of code in the main.c but one of them, the P4_8 has inverted behavior (yellow track): it goes high when all others would go low.

Any idea what could be wrong ?

Thanks.

Julius

[Rasenburger]

As additional information I attach the configuration snapshot and traces at booting.

Pin 4_8 has a bounce and stays HI, also Pin 4_9 has a bounce but goes down.

It seems an anomalous behavior... any help ?