Using MB1389D Nucleo64 with STM32WL on top of Arduino board

LCHIV.1 · ‎2021-01-22

Hello there,

I've sucesssfully built the app AT_SLAVE app and downloaded it to my the board.

When connected trough USB everything works fine.

I've the enable USART1 to be able to communicate with the STM32 via D0/D1 of the arduino connector.

I have no communication.

On the arduino board D0 is RX and D1 is TX, but on the Nucleo PB7/PA3(D0) says it is also RX and PB6/PA2 TX (checked trough MX tool).

Any help would be greatly appreciated

Regards

Laurent

Andrew Neil · ‎2021-01-23

Aren't both the Arduino and the Nucleo trying to be "hosts" here? You want the Nucleo to be a "shield".

If you can't reconfigure the Tx/Rx, you'll need a hardware crossover

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.