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20 lines
576 B
20 lines
576 B
1 week ago
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#pragma once
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#include "opendbc/safety/board/drivers/can_common_declarations.h"
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uint8_t calculate_checksum(const uint8_t *dat, uint32_t len) {
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uint8_t checksum = 0U;
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for (uint32_t i = 0U; i < len; i++) {
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checksum ^= dat[i];
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}
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return checksum;
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}
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void can_set_checksum(CANPacket_t *packet) {
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packet->checksum = 0U;
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packet->checksum = calculate_checksum((uint8_t *) packet, CANPACKET_HEAD_SIZE + GET_LEN(packet));
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}
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bool can_check_checksum(CANPacket_t *packet) {
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return (calculate_checksum((uint8_t *) packet, CANPACKET_HEAD_SIZE + GET_LEN(packet)) == 0U);
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}
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