generated from hulk/gd32e23x_template
244 lines
7.1 KiB
C
244 lines
7.1 KiB
C
//
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// Created by yelv1 on 24-12-31.
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//
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#include "rs485_protocol.h"
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extern uint8_t g_temperature_uint8[2];
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static int buf_index_r = 0;
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static int buf_index_w = 0;
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static int buf_length = 0;
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static char cmd_buffer[BUF_SIZE][MAX_SERIAL_CMD_SIZE];
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static char serial_char = 0x00;
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static int serial_count = 0;
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static char *strchr_pointer = NULL;
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static packet_state_t packet_state = PS_LEN;
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// bool code_seen(char code) {
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// // strchr_pointer = strchr(cmd_buffer[buf_index_r], code);
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// return (strchr_pointer != NULL); //Return True if a character was found
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// }
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bool code_seen(char code) {
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strchr_pointer = NULL;
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for (int i = 0; cmd_buffer[buf_index_r][i] != '\0'; i++) {
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if (cmd_buffer[buf_index_r][i] == code) {
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strchr_pointer = &cmd_buffer[buf_index_r][i];
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break;
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}
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}
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return (strchr_pointer != NULL); // Return True if a character was found
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}
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float code_value(void) {
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return (strtod(&cmd_buffer[buf_index_r][strchr_pointer - cmd_buffer[buf_index_r] + 1], NULL));
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}
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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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// validation_result_t validate = VALIDATION_SUCCESS;
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//
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// validate = (validate_package_header(cmd) |
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// validate_package_type(cmd) |
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// validate_data_length(cmd) |
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// validate_package_crc(cmd, length));
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//
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// switch (validate) {
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// case VALIDATION_SUCCESS:
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// // printf("%d", length);
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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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// ultrasonic_distance_report();
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// } else if (strcmp(combined_str, "M2") == 0) {
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// gd60914_tempture_report();
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// } else if (strcmp(combined_str, "M3") == 0)
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// {
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// printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
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// fwdgt_reset_mcu();
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// } else {
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// printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);
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// return;
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// }
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// break;
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// case VALIDATION_CRC_ERROR:
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// printf("%c%c%c%c%c%c%c", 0xB5, 0xF1, 0x03, 0x65, 0x72, 0x72, 0x3D);
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// break;
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// case VALIDATION_HEADER_ERROR:
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// printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3E);
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// break;
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// case VALIDATION_TYPE_ERROR:
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// printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
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// break;
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// case VALIDATION_LENGTH_ERROR:
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// printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x40);
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// break;
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// default:
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// break;
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// }
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// }
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uint8_t calculate_crc(uint8_t data[], uint8_t data_length) {
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uint8_t crc = 0;
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for (uint8_t i = 1; i < data_length - 1; 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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}
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validation_result_t validate_package_crc(uint8_t *data, uint8_t data_length) {
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if (data[data_length - 1] == calculate_crc(data, data_length) && data_length == 3 + data[2] + 1) {
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return VALIDATION_SUCCESS;
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} else {
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return VALIDATION_CRC_ERROR;
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}
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}
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validation_result_t validate_package_header(uint8_t *data) {
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if (data[0] == PROTOCOL_PACKAGE_HEADER) {
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return VALIDATION_SUCCESS;
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} else {
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return VALIDATION_HEADER_ERROR;
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}
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}
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validation_result_t validate_package_type(uint8_t *data) {
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if (data[1] == PROTOCOL_BOARD_TYPE) {
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return VALIDATION_SUCCESS;
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} else {
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return VALIDATION_TYPE_ERROR;
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}
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}
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validation_result_t validate_data_length(uint8_t *data) {
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if (data[2] == PROTOCOL_PACKAGE_LENGTH) {
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return VALIDATION_SUCCESS;
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} else {
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return VALIDATION_LENGTH_ERROR;
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}
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}
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void gd60914_tempture_report(void) {
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static uint8_t package_header[3] = {0xB5, 0xF0, 0x02};
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uint8_t combined_data[5];
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memcpy(combined_data, package_header, 3);
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memcpy(combined_data + 3, g_temperature_uint8, 2);
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printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
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printf("%c%c", g_temperature_uint8[1], g_temperature_uint8[0]);
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printf("%c", calculate_crc(combined_data, 6));
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}
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void ultrasonic_distance_report(void) {
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static uint16_t distance_uint16 = 0;
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static uint8_t package_header[3] = {0xB5, 0xF0, 0x02};
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static uint8_t package_data[4] = {0};
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distance_uint16 = ultrasonic_calc_distance();
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package_data[0] = (distance_uint16 >> 8) & 0xFF;
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package_data[1] = distance_uint16 & 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, 2);
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printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
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printf("%c%c", package_data[0], package_data[1]);
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printf("%c", calculate_crc(combined_data, 6));
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}
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void start_communication(void) {
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if (buf_length < (BUF_SIZE - 1)) {
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get_command();
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}
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if (buf_length) {
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printf("DONE！\r\n");
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prcess_command();
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buf_length--;
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buf_index_r = (buf_index_r + 1) % BUF_SIZE;
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}
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}
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void get_command(void) {
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static uint8_t check_sum = 0;
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static uint8_t packet_len ;
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static uint8_t packet_type;
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packet_state = PS_NULL;
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serial_count = 0;
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serial_char=0;
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if (uart_available() > 0)
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delay_ms(5);
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while (uart_available() > 0 && buf_length < BUF_SIZE) {
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delay_us(100);
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serial_char = uart_read();
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switch (packet_state) {
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case PS_NULL:
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if (serial_char == PACKET_START_BYTE) {
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packet_state = PS_TYPE;
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serial_count = 0;
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check_sum = 0;
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} else {
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serial_count = 0;
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}
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break;
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case PS_TYPE:
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packet_type = serial_char;
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check_sum += serial_char;
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packet_state = PS_LEN;
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break;
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case PS_LEN:
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check_sum += serial_char;
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packet_len = serial_char;
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packet_state = PS_PAYLOAD;
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break;
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case PS_PAYLOAD:
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check_sum += serial_char;
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cmd_buffer[buf_index_w][serial_count++] = serial_char;
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if (serial_count >= packet_len) {
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packet_state = PS_CRC;
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}
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break;
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case PS_CRC:
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packet_state = PS_NULL;
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if (!serial_count || check_sum != serial_char) {
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serial_count = 0;
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return;
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}
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cmd_buffer[buf_index_w][serial_count] = 0;
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buf_index_w = (buf_index_w + 1) % BUF_SIZE;
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buf_length++;
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serial_count = 0;
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default:
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break;
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}
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}
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}
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void prcess_command(void) {
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if (code_seen('M')) {
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switch ((int)code_value()) {
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case 1:
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// ultrasonic_distance_report();
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printf("M1");
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break;
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case 2:
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// gd60914_tempture_report();
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printf("M2");
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break;
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default:
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break;
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}
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}
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}
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