CAN receive example code in S32DS not working

laxmikanthindur — Mon, 23 Jul 2018 06:07:39 GMT

Hi All,
Attached image is my setup for CAN communication using DEVkit MPC5748G.
I am trying CAN receive example code (flexcan_receive_Z0_4) in S32DS.

But code is not working. So for more diagnosis I traced CAN signal using DSO.
I have observed CAN high and Low signal on CAN_H and CAN_L.
But there is no signal found on Rx pin (Between transceiver IC and MPC5748G controller).

My set up is working for transmit example code ( flexcan_transmit_Z0_4) .

Please help me to sort out this problem.

Re: CAN receive example code in S32DS not working

mikedoidge — Mon, 23 Jul 2018 13:48:03 GMT

Hello,

This seems to be a similar issue to the one in thread https://community.nxp.com/message/1025113 .

Try adding a 120 ohm resistor between CAN_H and CAN_L.

Hope it helps,

Mike

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CAN receive example code in S32DS not working

Re: CAN receive example code in S32DS not working