FaSTTUBe/can-halal
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bxCAN: Shift filter ID/mask

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This commit is contained in:
Jasper Blanckenburg 2023-03-18 21:16:56 +01:00
parent eb74553f89
commit b2929ad664
1 changed files with 6 additions and 6 deletions

12
can-halal.c

@ -32,14 +32,14 @@ HAL_StatusTypeDef ftcan_add_filter(uint16_t id, uint16_t mask) {
static uint32_t next_filter_no = 0; static uint32_t next_filter_no = 0;
static CAN_FilterTypeDef filter; static CAN_FilterTypeDef filter;
if (next_filter_no % 2 == 0) { if (next_filter_no % 2 == 0) {
filter.FilterIdHigh = id; filter.FilterIdHigh = id << 5;
filter.FilterMaskIdHigh = mask; filter.FilterMaskIdHigh = mask << 5;
filter.FilterIdLow = 0; filter.FilterIdLow = id << 5;
filter.FilterMaskIdLow = 0xFFFF; filter.FilterMaskIdLow = mask << 5;
} else { } else {
// Leave high filter untouched from the last configuration // Leave high filter untouched from the last configuration
filter.FilterIdLow = id; filter.FilterIdLow = id << 5;
filter.FilterMaskIdLow = mask; filter.FilterMaskIdLow = mask << 5;
} }
filter.FilterFIFOAssignment = CAN_FILTER_FIFO0; filter.FilterFIFOAssignment = CAN_FILTER_FIFO0;
filter.FilterBank = next_filter_no / 2; filter.FilterBank = next_filter_no / 2;