SDK Bug in CAN FIFO

wangshizhen — Fri, 02 Feb 2018 08:05:14 GMT

Hello:

I has a project that need the FIFO of CAN. CAN 0 FIFO work fine, but when i use CAN1 FIFO,the programe will enter DefaultISR.

I found a bug when I debug CAN SDK(085 or 086) API, The CAN 1 only have max 16 RXIMR,but the the SDK use 32 to initial RXIMR:

FLEXCAN_DRV_Init-->FLEXCAN_EnableRxFifo:

code:

for (i = 0; i < CAN_RXIMR_COUNT; i++)
{
/* RX individual mask */
base->RXIMR[i] = (CAN_RXIMR_MI_MASK << CAN_ID_EXT_SHIFT) & (CAN_ID_STD_MASK | CAN_ID_EXT_MASK);
}

the CAN_RXIMR_COUNT is 32.

The CAN1 FIFO program will work fine when I change CAN_RXIMR_COUNT to 16 .

kind regards

Re: SDK Bug in CAN FIFO

AnaAldescu — Fri, 02 Feb 2018 12:42:33 GMT

Hello,

The number of RXIMR registers is equal to the number of message buffer for each instance. Thank you for reporting this issue. It will be fixed in the next release for S32 SDK for S32K1xx devices.

Best regards,

Ana

topic SDK Bug in CAN FIFO in S32 SDK

SDK Bug in CAN FIFO

Re: SDK Bug in CAN FIFO