gd32F205 can通信代码
时间: 2023-09-06 20:11:50 浏览: 77
以下是基于GD32F205芯片的CAN通信代码示例:
首先需要在代码中包含以下头文件:
```
#include "gd32f20x.h"
#include "gd32f20x_can.h"
```
然后需要初始化CAN模块:
```
/* CAN0 and CAN1 default configuration */
can_parameter_struct can_parameter;
can_parameter_struct_struct_init(&can_parameter);
can_parameter.time_triggered = DISABLE;
can_parameter.auto_bus_off_recovery = ENABLE;
can_parameter.auto_wake_up = ENABLE;
can_parameter.auto_retrans = ENABLE;
can_parameter.receive_fifo_number = CAN_FIFO0;
can_parameter.transmit_fifo_order = DISABLE;
can_parameter.working_mode = CAN_NORMAL_MODE;
can_parameter.resync_jump_width = CAN_BT_SJW_1TQ;
can_parameter.time_segment_1 = CAN_BT_BS1_11TQ;
can_parameter.time_segment_2 = CAN_BT_BS2_4TQ;
can_parameter.prescaler = 3;
can_init(CAN0, &can_parameter);
can_init(CAN1, &can_parameter);
```
接下来需要配置CAN的过滤器:
```
/* CAN0 filter configuration */
can_filter_parameter_struct can_filter_parameter;
can_filter_parameter.filter_number = 0;
can_filter_parameter.filter_mode = CAN_FILTERMODE_MASK;
can_filter_parameter.filter_bits.higher_bits = 0x0000;
can_filter_parameter.filter_bits.lower_bits = 0x0000;
can_filter_parameter.filter_mask_bits.higher_bits = 0x0000;
can_filter_parameter.filter_mask_bits.lower_bits = 0x0000;
can_filter_parameter.filter_fifo_number = CAN_FIFO0;
can_filter_parameter.filter_enable = ENABLE;
can_filter_init(&can_filter_parameter);
```
接着可以启动CAN模块:
```
/* enable CAN0 */
can_enable(CAN0, ENABLE);
/* enable CAN1 */
can_enable(CAN1, ENABLE);
```
可以使用以下函数发送CAN消息:
```
/* transmit CAN message */
can_trasnmit_message_struct transmit_message;
transmit_message.tx_sfid = 0x321;
transmit_message.tx_efid = 0x0000;
transmit_message.tx_ft = CAN_FT_DATA;
transmit_message.tx_ff = CAN_FF_STANDARD;
transmit_message.tx_dlen = 8;
transmit_message.tx_data[0] = 0x11;
transmit_message.tx_data[1] = 0x22;
transmit_message.tx_data[2] = 0x33;
transmit_message.tx_data[3] = 0x44;
transmit_message.tx_data[4] = 0x55;
transmit_message.tx_data[5] = 0x66;
transmit_message.tx_data[6] = 0x77;
transmit_message.tx_data[7] = 0x88;
can_message_transmit(CAN0, &transmit_message);
```
可以使用以下函数接收CAN消息:
```
/* receive CAN message */
can_receive_message_struct receive_message;
can_message_receive(CAN0, CAN_FIFO0, &receive_message);
```
以上是基于GD32F205芯片的CAN通信代码示例。请根据具体需求进行修改。