hulk/xlsw_3dp_LDC1612
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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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This commit is contained in:
yelvlab
2024-12-23 19:50:25 +08:00
parent b307160ba0
commit f550619217
3 changed files with 56 additions and 60 deletions
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4
inc/rs485.h
View File

@@ -27,8 +27,8 @@
#define RX_BUFFER_SIZE 64
void rs485_config(void);
void process_command(char *cmd);
uint8_t calculate_crc(uint8_t package_header[3], uint8_t package_data[], size_t data_length);
void process_command(uint8_t *cmd, size_t length);
uint8_t calculate_crc(uint8_t data[], size_t data_length);
void eddy_current_value_report(void);
void tempture_value_report(void);

50
src/gd32e23x_it.c
View File

@@ -39,19 +39,15 @@ OF SUCH DAMAGE.
#include "rs485.h"
#include "led.h"
char rx_buffer[RX_BUFFER_SIZE];
uint8_t rx_index = 0;
/*!
\brief this function handles NMI exception
\param[in] none
\param[out] none
\retval none
*/
void NMI_Handler(void)
{
void NMI_Handler(void) {
/* if NMI exception occurs, go to infinite loop */
while(1) {
while (1) {
}
}
@@ -61,10 +57,9 @@ void NMI_Handler(void)
\param[out] none
\retval none
*/
void HardFault_Handler(void)
{
void HardFault_Handler(void) {
/* if Hard Fault exception occurs, go to infinite loop */
while(1) {
while (1) {
}
}
@@ -74,10 +69,9 @@ void HardFault_Handler(void)
\param[out] none
\retval none
*/
void SVC_Handler(void)
{
void SVC_Handler(void) {
/* if SVC exception occurs, go to infinite loop */
while(1) {
while (1) {
}
}
@@ -87,10 +81,9 @@ void SVC_Handler(void)
\param[out] none
\retval none
*/
void PendSV_Handler(void)
{
void PendSV_Handler(void) {
/* if PendSV exception occurs, go to infinite loop */
while(1) {
while (1) {
}
}
@@ -100,8 +93,7 @@ void PendSV_Handler(void)
\param[out] none
\retval none
*/
void SysTick_Handler(void)
{
void SysTick_Handler(void) {
}
/**
@@ -111,12 +103,10 @@ void SysTick_Handler(void)
* @retval None
*/
void TIMER16_IRQHandler(void) {
if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET)
{
if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET) {
timer_interrupt_flag_clear(LED_TIMER, TIMER_INT_FLAG_UP);
static uint8_t led_status = 0;
if (led_status)
{
if (led_status) {
gpio_bit_write(LED_PORT, LED_PIN, RESET);
timer_autoreload_value_config(LED_TIMER, 19200);
} else {
@@ -128,21 +118,23 @@ void TIMER16_IRQHandler(void) {
}
void USART0_IRQHandler(void) {
if(RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE))
{
static uint8_t rx_index = 0;
static uint8_t rx_buffer[RX_BUFFER_SIZE];
if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
usart_interrupt_flag_clear(USART0, USART_INT_FLAG_RBNE);
uint8_t received_data = (uint8_t)usart_data_receive(USART0);
uint8_t received_data = (uint8_t) usart_data_receive(USART0);
// 将接收到的数据存储到缓冲区
if(rx_index < RX_BUFFER_SIZE - 1) {
if (rx_index < RX_BUFFER_SIZE - 1) {
rx_buffer[rx_index++] = received_data;
}
// 检查是否接收到换行符，表示指令结束
if(received_data == '\n') {
rx_buffer[rx_index] = '\0'; // 添加字符串结束符
process_command(rx_buffer); // 处理指令
if (received_data == '\n') {
// rx_buffer[rx_index] = '\0'; // 添加字符串结束符
process_command(rx_buffer, rx_index); // 处理指令
rx_index = 0; // 重置缓冲区索引
}
}
}
}

62
src/rs485.c
View File

@@ -37,41 +37,37 @@ void rs485_config(void) {
usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);
}
void process_command(char *cmd) {
void process_command(uint8_t *cmd, size_t length) {
char combined_str[3];
// printf("\n");
// printf("%s\n", combined_str);
// }
// printf("length: %d\r\n", length);
printf("%c", calculate_crc(cmd, length - 2));
if (cmd[0] == 0xD5 && cmd[1] == 0x03) {
if (cmd[2] == 0x02) {
sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
if (strcmp(combined_str, "M1") == 0) {
if (strncmp(cmd, "M12", 3) == 0) {
// printf("M1 -=-=- OK!\r\n");
eddy_current_value_report();
} else if (strncmp(cmd, "M2", 2) == 0) {
// printf("M2 -=-=- OK!\r\n");
tempture_value_report();
// } else if (strncmp(cmd, "M3", 2) == 0) {
// char *param_str = cmd + 2; // Skip "M3"
// int param = atoi(param_str + 1); // Skip "S" and convert to integer
// if (param >= 0 && param <= 100) {
// printf("M3 with parameter %d -=-=- OK!\r\n", param);
// } else {
// printf("Invalid parameter for M3 command!\r\n");
// }
} else {
printf("Invalid Command!\r\n");
eddy_current_value_report();
} else if (strcmp(combined_str, "M2") == 0) {
tempture_value_report();
} else {
printf("******\r\n");
}
}
}
}
uint8_t calculate_crc(uint8_t package_header[3], uint8_t package_data[], size_t data_length) {
uint8_t calculate_crc(uint8_t data[], size_t data_length) {
uint8_t crc = 0;
/* Calculate CRC for header */
for (int i = 1; i < 3; i++) {
crc += package_header[i];
}
for (size_t i = 0; i < data_length; i++) {
crc += package_data[i];
for (size_t i = 1; i < data_length; i++) {
crc += data[i];
}
return (uint8_t)(crc & 0xFF);
@@ -85,10 +81,14 @@ void eddy_current_value_report(void) {
package_data[2] = (g_eddy_current_value_uint32 >> 8) & 0xFF;
package_data[3] = g_eddy_current_value_uint32 & 0xFF;
uint8_t combined_data[7];
memcpy(combined_data, package_header, 3);
memcpy(combined_data + 3, package_data, 4);
// printf("EddyCurrent: %x\r\n", g_eddy_current_value_uint32);
printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
printf("%c\r\n", calculate_crc(package_header, package_data, 4));
printf("%c\r\n", calculate_crc(combined_data, 7));
}
void tempture_value_report(void) {
@@ -99,8 +99,12 @@ void tempture_value_report(void) {
package_data[2] = (g_temperature_uint32 >> 8) & 0xFF;
package_data[3] = g_temperature_uint32 & 0xFF;
uint8_t combined_data[7];
memcpy(combined_data, package_header, 3);
memcpy(combined_data + 3, package_data, 4);
// printf("Temperature: %x\r\n", g_temperature_uint32);
printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
printf("%c\r\n", calculate_crc(package_header, package_data, 4));
printf("%c\r\n", calculate_crc(combined_data, 7));
}