MPC5645S CAN communication and endianess

[ino0]

Hello,

I am a little confused about endianess when I use CAN communication in MPC5645S.

My question is, when I receive a CAN frame with 8 bytes(frameData), I try to receive it by  'unsigned char data[8]'.

Do I need consider endianess here,

Data[0] = frameData[0];

Data[1] = frameData[1];

...

or I should do it like this:

Data[7] = frameData[0];

Data[6] = frameData[1];

...

[PetrS]

Hi,

the message buffer structure is following, valid for both RX and TX operation.

The receive frame is stored into the MB as shown in above picture.

So it depends how the MB was prepared on opposite node, user then read the received message as needed.

BR, Petr