对于车身控制CAN网络(舒适+信息娱乐),其特点是消息标识符种类多,而且消息发送没有固定频率或规律,在此类应用的CAN控制器,例如 Freescale 的 MSCAN(Motorola Scalable Controller Area Network)的设计中,控制器内部包括 FIFO 寄存器,它将具有相同标识符的消息按顺序保存,从而避免接收缓冲器溢出。而对于动力系统控制的CAN...
FIFO从空状态开始,在接收到第一个有效的报文后,FIFO状态变为pending_1,硬件相应地把CAN_RFR寄存器的FMP[1:0]设置为’01’(二进制01b)。软件可以读取FIFO输出邮箱来读出邮箱中的报文,然后通过对CAN_RFR寄存器的RFOM位设置’1’来释放邮箱,这样FIFO又变为空状态了。如果在释放邮箱的同时,又收到了一个有效的报文...
case CAN_PORT_CAN1: 223 { 224 /* 从FIFO中读取CAN报文 */ 225 CAN_Receive(CAN1,CAN_FIFO0, recv_msg); 226 } 227 break; 228 229 default: 230 break; 231 } 232 return ; 233 } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17....
HCAN1.Init.ReceiveFifoLocked = ENABLE;HCAN1.Init.TransmitFifoPriority = ENABLE;if (HAL_CAN_Init...
(11) send_bit(1);test_full_fifo; // test currently switched onsend_frame; // test currently switched offbus_off_test; // test currently switched offforced_bus_off; // test currently switched offsend_frame_basic; // test currently switched offsend_frame_extended; // test currently ...
CAN_receive_FIFO_number_constants * @{ */ #define CAN_FIFO0 ((uint8_t)00) /*!< CAN FIFO 0 used to receive */ #define CANFIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used receive/ IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) |...
CAN is working fine but needs to unable CAN FIFO to receive multiple CAN packets for MC56F8300. I Have EVK8300 Development board and as per the example code i am able to receive the CAN data but i am only able to apply the sigle id filter and also not able to def...
这是四组分别对应的是四个nodes. 作用是一样的。这里介绍第一组。0,1,2,3 这里对应的是 接收中断 发送中断 busoff中断 rx fifo中断 这里我们先把rx的中断优先级和中断服务函数注册一下,后面详细描述。 注册中断优先级与对应的服务函数 * IFX_INTERRUPT(isr, vectabNum, priority) ...
The CAN Receive block receive messages from a Controller Area Network (CAN) network connected to the hardware.
inout [7:0] port_0_io; reg [7:0] addr_latched; reg wr_i_q; reg rd_i_q; `endif input cs_can_i; input clk_i; input rx_i; output tx_o; output irq_on; output clkout_o; reg data_out_fifo_selected; wire irq_o; wire [7:0] data_out_fifo; wire [7:0] data_out_regs;...