Question
Not able to transmit or receive messages on CAN
Posted on July 31, 2017 at 22:00
Hi all,
I am trying to initialize the FlexCAN1 module on the
SPC570S40E1 micro. The CAN module looks like it is correctly initialized, but when I try totransmitusing one of the MB's, the CAN Txline shows no activity and remains in the default high state. Time Stamp and Code field of the MB is showing the correct updated values. An interrupt is generated as well. Any idea what may be causing this problem?
I have initialized the pins as follows:
void Initialize_CAN_Pins(void)
{
// FlexCAN Channel 1
// RX --> PA12
SIUL2.MSCR_MUX[513-512].B.SSS = PAL_SPC5_SSS(2);
// TX --> PA13
SIUL2.MSCR_IO[13].R = PAL_MODE_OUTPUT_ALTERNATE(2);
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