From 49c136b725ff233178c1e235d2682daf845906d1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=B0=8F=E5=86=AFSir?= Date: Fri, 3 May 2024 14:00:42 +0800 Subject: [PATCH] Implement functions for the odometer --- Firmware/Core/apps/Inc/meter.h | 21 +++++ Firmware/Core/apps/src/meter.c | 157 +++++++++++++++++++++++++++++++++ 2 files changed, 178 insertions(+) create mode 100644 Firmware/Core/apps/Inc/meter.h create mode 100644 Firmware/Core/apps/src/meter.c diff --git a/Firmware/Core/apps/Inc/meter.h b/Firmware/Core/apps/Inc/meter.h new file mode 100644 index 0000000..3bc7297 --- /dev/null +++ b/Firmware/Core/apps/Inc/meter.h @@ -0,0 +1,21 @@ +/** + ****************************************************************************** + * @文件名 : meter.h + * @作 者 : 小冯Sir + * @brief : None + * @注意 : None + * @日 期 : 24-5-3 + ****************************************************************************** + */ + +#ifndef FIRMWARE_CORE_APPS_INC_METER_H_ +#define FIRMWARE_CORE_APPS_INC_METER_H_ + +#include "main.h" + + + +void taxiSystemInit(); + + +#endif //FIRMWARE_CORE_APPS_INC_METER_H_ diff --git a/Firmware/Core/apps/src/meter.c b/Firmware/Core/apps/src/meter.c new file mode 100644 index 0000000..306bcf2 --- /dev/null +++ b/Firmware/Core/apps/src/meter.c @@ -0,0 +1,157 @@ +/** + ****************************************************************************** + * @文件名 : meter.c + * @作 者 : 小冯Sir + * @brief : None + * @注意 : None + * @日 期 : 24-5-3 + ****************************************************************************** + */ +#include "meter.h" +#include "rtc.h" +#include "stdlib.h" +#include "fatfs.h" + +float price = 3; +char *date; +char *username; +char *pwd; + +//日期参数 +//默认价钱 +//串口用户名和密码 +void createConfigFile() { + FRESULT fre; + RTC_DateTypeDef sDate; + HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN); + char *temp = malloc(16 * sizeof(char)); + sprintf(temp, "20%02u-%02u-%02u", sDate.Year, sDate.Month, sDate + .Date); + cJSON *a = cJSON_CreateObject(); + cJSON_AddStringToObject(a, "Date", temp); + cJSON_AddNumberToObject(a, "Price", price); + cJSON_AddStringToObject(a, "username", "admin"); + cJSON_AddStringToObject(a, "pwd", "12345678"); + char *json_string = cJSON_Print(a); + + //检查system目录是否存在 + fre = f_opendir(&SDFile,"system"); + if(fre == FR_OK){ + printf("system dir exist\r\n"); + } + else{ + fre = f_mkdir("system"); + if(fre == FR_OK){ + printf("create system dir successful\r\n"); + } else{ + printf("create system file failure\r\n"); + } + } + + //打开并创建文件 + fre = + f_open(&SDFile, "system/config.txt", + FA_READ | FA_WRITE | FA_CREATE_NEW); + if (fre == FR_OK) { + printf("Create config.txt ok \r\n"); + UINT bw; + if (f_write(&SDFile, json_string, + strlen(json_string), &bw) == FR_OK) { + printf("Write config.txt ok \r\n"); + printf("%s\r\n", json_string); + } + f_close(&SDFile); + } else printf("create config.txt fail %d\r\n", fre); + + free(temp); + free(json_string); +} + +uint8_t checkInitFile() { + FRESULT fre; + fre = f_open(&SDFile, "system/config.txt", FA_READ); + if (fre == FR_OK) { + return 0; + } else { + createConfigFile(); + } + return 1; +} + +void taxiSystemInit() { + DWORD file_size; + long length; + uint8_t *data; + cJSON *json, *item; + uint8_t res = checkInitFile(); + if (res == 0) { + printf("config.txt exists\r\n"); + } + //read config.txt + FRESULT fre; + fre = f_open(&SDFile, "system/config.txt", FA_READ); + if (fre != FR_OK) { + printf("can't open config.txt file \r\n"); + } + //get file size + file_size = f_size(&SDFile); + if (fre != FR_OK) { + printf("get file size failure\r\n"); + } + printf("File size is %lu bytes\r\n", file_size); + //read file + UINT br; + f_lseek(&SDFile, file_size); + length = f_tell(&SDFile); + f_lseek(&SDFile, 0); + data = (uint8_t *)malloc(length + 1); + if (f_read(&SDFile, data, length, &br) == FR_OK) { + data[br] = '\0'; + printf("config.txt: %s", data); + } + f_close(&SDFile); + + //解析JSON数据 + json = cJSON_Parse((char *)data); + if (!json) { + printf("解析JSON失败！\n"); + free(data); + } + item = cJSON_GetObjectItemCaseSensitive(json, "Date"); + if (item && cJSON_IsString(item)) { + date = item->valuestring; + printf("Date: %s\r\n", date); + } else { + printf("Not find name\r\n"); + } + item = cJSON_GetObjectItemCaseSensitive(json, "Price"); + if (item && cJSON_IsNumber(item) && (item->valueint == 0 || + item->valuedouble != 0)) { + price = (float)item->valuedouble; + printf("Price: %.2f\r\n", price); + } else { + printf("not find price\r\n"); + price = 3.0f; + } + item = cJSON_GetObjectItemCaseSensitive(json, "username"); + if (item && cJSON_IsString(item)) { + username = item->valuestring; + printf("username: %s\r\n", username); + } else { + printf("Not find username\r\n"); + username = "admin"; + } + + item = cJSON_GetObjectItemCaseSensitive(json, "pwd"); + if (item && cJSON_IsString(item)) { + pwd = item->valuestring; + printf("pwd: %s\r\n", pwd); + } else { + printf("Not find pwd\r\n"); + pwd = "12345678"; + } + cJSON_Delete(json); + free(data); +} + +