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stm32: Add support for FDCAN peripheral, exposed as pyb.CAN.

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The new fdcan.c file provides the low-level C interface to the FDCAN
peripheral, and pyb_can.c is updated to support both traditional CAN and
FDCAN, depending on the MCU being compiled for.
This commit is contained in:
iabdalkader
2019-09-16 01:56:38 +02:00
committed by Damien George
parent d06fd384c2
commit f7a07b3605
7 changed files with 604 additions and 52 deletions
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12
ports/stm32/can.h
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@@ -37,6 +37,13 @@
#define MASK32 (2)
#define LIST32 (3)
#if MICROPY_HW_ENABLE_FDCAN
#define CAN_TypeDef FDCAN_GlobalTypeDef
#define CAN_HandleTypeDef FDCAN_HandleTypeDef
#define CanTxMsgTypeDef FDCAN_TxHeaderTypeDef
#define CanRxMsgTypeDef FDCAN_RxHeaderTypeDef
#endif
enum {
CAN_STATE_STOPPED,
CAN_STATE_ERROR_ACTIVE,
@@ -74,10 +81,9 @@ void can_deinit_all(void);
bool can_init(pyb_can_obj_t *can_obj, uint32_t mode, uint32_t prescaler, uint32_t sjw, uint32_t bs1, uint32_t bs2, bool auto_restart);
void can_deinit(pyb_can_obj_t *self);
void can_clearfilter(uint32_t f, uint8_t bank);
int can_receive(CAN_TypeDef *can, int fifo, CanRxMsgTypeDef *msg, uint32_t timeout_ms);
void can_clearfilter(pyb_can_obj_t *self, uint32_t f, uint8_t bank);
int can_receive(CAN_HandleTypeDef *can, int fifo, CanRxMsgTypeDef *msg, uint8_t *data, uint32_t timeout_ms);
HAL_StatusTypeDef CAN_Transmit(CAN_HandleTypeDef *hcan, uint32_t Timeout);
void pyb_can_handle_callback(pyb_can_obj_t *self, uint fifo_id, mp_obj_t callback, mp_obj_t irq_reason);
#endif // MICROPY_INCLUDED_STM32_CAN_H