generated from hulk/gd32e23x_template
完成收到包的分解与指令解析，并输出正确数据，待加入CRC验证机制。
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b307160ba0
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f550619217
@ -27,8 +27,8 @@
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#define RX_BUFFER_SIZE 64
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void rs485_config(void);
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void process_command(char *cmd);
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uint8_t calculate_crc(uint8_t package_header[3], uint8_t package_data[], size_t data_length);
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void process_command(uint8_t *cmd, size_t length);
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uint8_t calculate_crc(uint8_t data[], size_t data_length);
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void eddy_current_value_report(void);
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void tempture_value_report(void);
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@ -39,19 +39,15 @@ OF SUCH DAMAGE.
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#include "rs485.h"
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#include "led.h"
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char rx_buffer[RX_BUFFER_SIZE];
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uint8_t rx_index = 0;
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/*!
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\brief this function handles NMI exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void NMI_Handler(void)
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{
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void NMI_Handler(void) {
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/* if NMI exception occurs, go to infinite loop */
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while(1) {
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while (1) {
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}
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}
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@ -61,10 +57,9 @@ void NMI_Handler(void)
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\param[out] none
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\retval none
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*/
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void HardFault_Handler(void)
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{
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void HardFault_Handler(void) {
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/* if Hard Fault exception occurs, go to infinite loop */
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while(1) {
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while (1) {
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}
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}
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@ -74,10 +69,9 @@ void HardFault_Handler(void)
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\param[out] none
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\retval none
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*/
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void SVC_Handler(void)
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{
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void SVC_Handler(void) {
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/* if SVC exception occurs, go to infinite loop */
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while(1) {
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while (1) {
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}
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}
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@ -87,10 +81,9 @@ void SVC_Handler(void)
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\param[out] none
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\retval none
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*/
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void PendSV_Handler(void)
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{
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void PendSV_Handler(void) {
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/* if PendSV exception occurs, go to infinite loop */
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while(1) {
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while (1) {
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}
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}
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@ -100,8 +93,7 @@ void PendSV_Handler(void)
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\param[out] none
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\retval none
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*/
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void SysTick_Handler(void)
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{
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void SysTick_Handler(void) {
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}
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/**
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@ -111,12 +103,10 @@ void SysTick_Handler(void)
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* @retval None
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*/
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void TIMER16_IRQHandler(void) {
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if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET)
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{
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if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET) {
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timer_interrupt_flag_clear(LED_TIMER, TIMER_INT_FLAG_UP);
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static uint8_t led_status = 0;
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if (led_status)
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{
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if (led_status) {
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gpio_bit_write(LED_PORT, LED_PIN, RESET);
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timer_autoreload_value_config(LED_TIMER, 19200);
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} else {
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@ -128,21 +118,23 @@ void TIMER16_IRQHandler(void) {
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}
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void USART0_IRQHandler(void) {
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if(RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE))
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{
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static uint8_t rx_index = 0;
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static uint8_t rx_buffer[RX_BUFFER_SIZE];
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if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
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usart_interrupt_flag_clear(USART0, USART_INT_FLAG_RBNE);
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uint8_t received_data = (uint8_t)usart_data_receive(USART0);
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uint8_t received_data = (uint8_t) usart_data_receive(USART0);
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// 将接收到的数据存储到缓冲区
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if(rx_index < RX_BUFFER_SIZE - 1) {
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if (rx_index < RX_BUFFER_SIZE - 1) {
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rx_buffer[rx_index++] = received_data;
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}
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// 检查是否接收到换行符，表示指令结束
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if(received_data == '\n') {
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rx_buffer[rx_index] = '\0'; // 添加字符串结束符
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process_command(rx_buffer); // 处理指令
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if (received_data == '\n') {
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// rx_buffer[rx_index] = '\0'; // 添加字符串结束符
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process_command(rx_buffer, rx_index); // 处理指令
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rx_index = 0; // 重置缓冲区索引
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}
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}
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}
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}
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62
src/rs485.c
62
src/rs485.c
@ -37,41 +37,37 @@ void rs485_config(void) {
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usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);
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}
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void process_command(char *cmd) {
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void process_command(uint8_t *cmd, size_t length) {
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char combined_str[3];
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// printf("\n");
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// printf("%s\n", combined_str);
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// }
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// printf("length: %d\r\n", length);
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printf("%c", calculate_crc(cmd, length - 2));
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if (cmd[0] == 0xD5 && cmd[1] == 0x03) {
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if (cmd[2] == 0x02) {
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sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
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if (strcmp(combined_str, "M1") == 0) {
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if (strncmp(cmd, "M12", 3) == 0) {
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// printf("M1 -=-=- OK!\r\n");
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eddy_current_value_report();
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} else if (strncmp(cmd, "M2", 2) == 0) {
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// printf("M2 -=-=- OK!\r\n");
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tempture_value_report();
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// } else if (strncmp(cmd, "M3", 2) == 0) {
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// char *param_str = cmd + 2; // Skip "M3"
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// int param = atoi(param_str + 1); // Skip "S" and convert to integer
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// if (param >= 0 && param <= 100) {
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// printf("M3 with parameter %d -=-=- OK!\r\n", param);
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// } else {
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// printf("Invalid parameter for M3 command!\r\n");
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// }
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} else {
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printf("Invalid Command!\r\n");
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eddy_current_value_report();
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} else if (strcmp(combined_str, "M2") == 0) {
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tempture_value_report();
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} else {
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printf("******\r\n");
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}
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}
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}
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}
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uint8_t calculate_crc(uint8_t package_header[3], uint8_t package_data[], size_t data_length) {
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uint8_t calculate_crc(uint8_t data[], size_t data_length) {
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uint8_t crc = 0;
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/* Calculate CRC for header */
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for (int i = 1; i < 3; i++) {
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crc += package_header[i];
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}
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for (size_t i = 0; i < data_length; i++) {
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crc += package_data[i];
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for (size_t i = 1; i < data_length; i++) {
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crc += data[i];
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}
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return (uint8_t)(crc & 0xFF);
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@ -85,10 +81,14 @@ void eddy_current_value_report(void) {
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package_data[2] = (g_eddy_current_value_uint32 >> 8) & 0xFF;
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package_data[3] = g_eddy_current_value_uint32 & 0xFF;
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uint8_t combined_data[7];
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memcpy(combined_data, package_header, 3);
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memcpy(combined_data + 3, package_data, 4);
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// printf("EddyCurrent: %x\r\n", g_eddy_current_value_uint32);
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printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
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printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
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printf("%c\r\n", calculate_crc(package_header, package_data, 4));
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printf("%c\r\n", calculate_crc(combined_data, 7));
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}
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void tempture_value_report(void) {
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@ -99,8 +99,12 @@ void tempture_value_report(void) {
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package_data[2] = (g_temperature_uint32 >> 8) & 0xFF;
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package_data[3] = g_temperature_uint32 & 0xFF;
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uint8_t combined_data[7];
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memcpy(combined_data, package_header, 3);
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memcpy(combined_data + 3, package_data, 4);
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// printf("Temperature: %x\r\n", g_temperature_uint32);
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printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
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printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
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printf("%c\r\n", calculate_crc(package_header, package_data, 4));
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printf("%c\r\n", calculate_crc(combined_data, 7));
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}
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