关于GD32F103的CAN通讯

只看该作者 · 2021-9-7 08:32

第一次用GD32的芯片，以前用ST的一切正常。现在的CAN通讯问题是：发送正常，接收在FIFO里面能看到有数据，就是进不了接收中断。有遇到过一样的问题的吗？

只看该作者 · 2021-9-7 08:35

can_interrupt_enable(CAN0, CAN_INT_RFNE0);

nvic_irq_enable(CAN0_RX1_IRQn,0,1);

开了CAN0中断

只看该作者 · 2021-9-7 08:38

接收屏蔽寄存器配置多半没对

只看该作者 · 2021-9-7 09:03

//initialize filter
//CAN0 filter number
can_filter.filter_number = 0;

//initialize filter
can_filter.filter_mode = CAN_FILTERMODE_MASK;
can_filter.filter_bits = CAN_FILTERBITS_32BIT;
can_filter.filter_list_high = 0x0000;
can_filter.filter_list_low = 0x0000;
can_filter.filter_mask_high = 0x0000;
can_filter.filter_mask_low = 0x0000;
can_filter.filter_fifo_number = CAN_FIFO0;
can_filter.filter_enable = ENABLE;
can_filter_init(&can_filter);

can_interrupt_enable(CAN0, CAN_INT_RFNE0);