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29 lines
917 B
29 lines
917 B
1 month ago
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#pragma once
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// SAE 2284-3 : minimum 16 tq, SJW 3, sample point at 81.3%
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#define CAN_QUANTA 16U
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#define CAN_SEQ1 12U
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#define CAN_SEQ2 3U
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#define CAN_SJW 3U
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#define CAN_PCLK 48000U
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// 333 = 33.3 kbps
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// 5000 = 500 kbps
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#define can_speed_to_prescaler(x) (CAN_PCLK / CAN_QUANTA * 10U / (x))
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#define CAN_NAME_FROM_CANIF(CAN_DEV) (((CAN_DEV)==CAN1) ? "CAN1" : (((CAN_DEV) == CAN2) ? "CAN2" : "CAN3"))
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void print(const char *a);
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// kbps multiplied by 10
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#define SPEEDS_ARRAY_SIZE 8
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extern const uint32_t speeds[SPEEDS_ARRAY_SIZE];
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#define DATA_SPEEDS_ARRAY_SIZE 1
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extern const uint32_t data_speeds[DATA_SPEEDS_ARRAY_SIZE]; // No separate data speed, dummy
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bool llcan_set_speed(CAN_TypeDef *CANx, uint32_t speed, bool loopback, bool silent);
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void llcan_irq_disable(const CAN_TypeDef *CANx);
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void llcan_irq_enable(const CAN_TypeDef *CANx);
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bool llcan_init(CAN_TypeDef *CANx);
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void llcan_clear_send(CAN_TypeDef *CANx);
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