communication between nucleo-f411re and nucleo-h753zi board

[suhfi]

Hi! I am trying to do a simple communication between nucleo-f411re and nucleo-h753zi board using uart communication. but i am unable to set it up. Is it possible?  If yes, what is the easy way to do that. How the connections and wiring look like? 

[mfgkw]

Hi suhfi,

this should possible.

Assuming the boards are  not far from each other lines can be connected directly and need no level shifting to RS232.

Then the roadmap looks like:

- choose a free U(S)ART on the F411

- same on H753.

- connect GND between both

- connect the choosen RX from F411 with the choosen TX from H753.

- connect the choosen TX from F411 with the choosen RX from H753.

- create a project for the F411

- create a project for the H753

- In both projects configure the choosen U(S)ART with the same baud rate, data length and parity with no handshake

- write your app for the F411 to send something and your app on the H753 or vice versa

- debug..., if it does not work an oscilloscope would be helpful

If it works can be determined ib the debugger on the receiving side, or you watch progress with a LCD or an additional serial output to a PC, e.g. VCP via ST-Link.