topic no CAN communication on MPC5744 in Model-Based Design Toolbox (MBDT)

no CAN communication on MPC5744

hoeldMech — Fri, 10 Dec 2021 08:32:37 GMT

Hi,

I tried to send data from my simulink model over the onboard CAN pins (PB0, PB1) but I cannot get any valid information. Trying to read the signals with a Vector box I only get error frames.
So I tried to make the CAN example project "FlexCAN Master" running which does work neither. I use the MPC5744P RevE. Is it possible that any hardware changes between revB and revE make some issues?
An external power supply of 12 V is used.

Thank for your help!

Re: no CAN communication on MPC5744

mariuslucianand — Tue, 14 Dec 2021 21:43:11 GMT

Hello @hoeldMech ,

I would first try to run a simple GPIO example to make sure that the code deployment, and the bord is working fine.

Secondly, Can you tell me which are settings for the J43, J44 and J45 jumpers? I would try to put the J43, J44 and J45 on position 2-3 to set the external power for the MCU as well.

Can you give both this a try?

Hope this helps,

Marius