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[STM32F4 family] Assign CAN filter number properly #1713

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Merged
merged 1 commit into from
May 9, 2016
Merged

[STM32F4 family] Assign CAN filter number properly #1713

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6 changes: 5 additions & 1 deletion libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F4/can_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@ static can_irq_handler irq_handler;

void can_init(can_t *obj, PinName rd, PinName td)
{
uint32_t filter_number;
CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD);
CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD);
obj->can = (CANName)pinmap_merge(can_rd, can_td);
Expand Down Expand Up @@ -71,7 +72,10 @@ void can_init(can_t *obj, PinName rd, PinName td)
if (HAL_CAN_Init(&CanHandle) != HAL_OK) {
error("Cannot initialize CAN");
}
can_filter(obj, 0, 0, CANStandard, 0);

filter_number = (obj->can == CAN_1) ? 0 : 14;

can_filter(obj, 0, 0, CANStandard, filter_number);
}

void can_irq_init(can_t *obj, can_irq_handler handler, uint32_t id)
Expand Down