1、接收所有数据
/* 此处id2都为0，不进行id校验，接收所有数据*/
static void CAN_Filter_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig1;
/* Configure Rx filter */
sFilterConfig1.IdType = FDCAN_STANDARD_ID;
sFilterConfig1.FilterIndex = 0;
sFilterConfig1.FilterType = FDCAN_FILTER_MASK;
sFilterConfig1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig1.FilterID1 = 0x111;
sFilterConfig1.FilterID2 = 0x000; /* For acceptance, MessageID and FilterID1 must match exactly */
HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig1);
}
2、只接受单个id
/*此处只接收ID为“123”的can数据 */
static void CAN_Filter_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig1;
/* Configure Rx filter */
sFilterConfig1.IdType = FDCAN_STANDARD_ID;
sFilterConfig1.FilterIndex = 0;
sFilterConfig1.FilterType = FDCAN_FILTER_MASK;
sFilterConfig1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig1.FilterID1 = 0x123;
sFilterConfig1.FilterID2 = 0x7FF; /* For acceptance, MessageID and FilterID1 must match exactly */
HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig1);
}
3、接收两个id
/*此处接收ID为“123”及“456”的can数据 */
static void CAN_Filter_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig1;
/* Configure Rx filter */
sFilterConfig1.IdType = FDCAN_STANDARD_ID;
sFilterConfig1.FilterIndex = 0;
sFilterConfig1.FilterType = FDCAN_FILTER_DUAL;
sFilterConfig1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig1.FilterID1 = 0x123;
sFilterConfig1.FilterID2 = 0x456; /* For acceptance, MessageID and FilterID1 must match exactly */
HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig1);
}
4、接收一定范围的id
/*此处接收ID在“111”~“666”之间的can数据 */
static void CAN_Filter_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig1;
/* Configure Rx filter */
sFilterConfig1.IdType = FDCAN_STANDARD_ID;
sFilterConfig1.FilterIndex = 0;
sFilterConfig1.FilterType = FDCAN_FILTER_RANGE;
sFilterConfig1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig1.FilterID1 = 0x111;
sFilterConfig1.FilterID2 = 0x666; /* For acceptance, MessageID and FilterID1 must match exactly */
HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig1);
}
5、接收特定规则的id
/*
FilterType 类型配置为 FDCAN_FILTER_MASK 表示经典的位屏蔽过滤。
FilterID1 = filter 表示 ID。
FilterID2 = mask 表示 ID 屏蔽位，mask 每个 bit 含义：
0: 表示 FilterID1 相应 bit 不关心，该位不用于比较。
1: 表示 FilterID1 相应 bit 必须匹配，即接收到的 ID 位必须与 FilterID1 的相应位一致。
我们这里 FilterID1 = 0x200，bit “1 0 0 0 0 0 0 0 0 0”
FilterID2 = 0x300 ，bit “1 1 0 0 0 0 0 0 0 0”
表示接收Id bit9必须为1，bit8必须为0，其他bit0~bit7不受限制。也就是接收0x200~0x300之间的数据
*/
static void CAN_Filter_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig1;
/* Configure Rx filter */
sFilterConfig1.IdType = FDCAN_STANDARD_ID;
sFilterConfig1.FilterIndex = 0;
sFilterConfig1.FilterType = FDCAN_FILTER_MASK;
sFilterConfig1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig1.FilterID1 = 0x200;
sFilterConfig1.FilterID2 = 0x300; /* For acceptance, MessageID and FilterID1 must match exactly */
HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig1);
}
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版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
原文链接：https://blog.csdn.net/zhuimeng_ruili/article/details/134854662
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