PEAK-System Forum

Hello,

I'm looking into how I can display the raw hex message received from the ECU.

I understand that using Read_2013 would return a status code for the receive queue. But, is there any way I can read and display the raw hexadecimal message from the ECU onto a GUI (and not a status code message?).

NOTE: Communication has been established between transmitter and receiver via mapping.

Best,
K1890350

Hello,

K1890350 wrote: ↑

Mon 20. Jun 2022, 10:44

I understand that using Read_2013 would return a status code for the receive queue.

when the function returns PUDS_STATUS_OK, then you got a message. This is placed in the out_msg_buffer parameter.

K1890350 wrote: ↑

Mon 20. Jun 2022, 10:44

I'm looking into how I can display the raw hex message received from the ECU.

When you read a message, this is retrieved in form of a uds_msg structure. This structure hast a field "msg" of type cantp_msg which has a property itself called "msgdata". This gives you access to the generic data bytes of the received message (check the sample project 01_server_response_ecu_reset_USDT):
.
If you rather want to have the segmented frames that are part of an ISO-TP multiframe communication in your output, then you will need to use the ISO-TP parameter PCANTP_PARAMETER_FRAME_FILTERING, using the value "PCANTP_FRAME_FILTERING_VERBOSE". More informaiton can be read in the PCAN-ISO-TP documentation, chapter 3.5.14