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【LinkIt 7687试用体验】数字时钟（结项）

2017-4-30 12:51:03 4418 数字时钟

0 本帖最后由可乐丸子于 2017-5-1 12:46 编辑抱歉，因为之前笔记本和手机被盗，存储在上面的资料都丢失了，所以结项比较晚。好了回归正题，笔者下面介绍使用LinkIT 7687开发板、LCD1602液晶屏、PCF8574转换板、面包板、两个4.7K欧姆电阻打造数字时钟硬件配置首先将LCD1602和PCF8574转换板按下图连接然后将LinkIt 7687开发板、电阻、面包板用杜邦线按下图连接到LCD1602 这样就完成了硬件配置软件配置下载SDK https://labs.mediatek.com/zh-cn/download/IK02Cbc5 然后如果使用的Ubuntu就按下面下载编译工具 sudo apt-get install build-essential 复制代码 64位Ubuntu或者Debian还要下载安装下面组件 sudo dpkg --add-architecture i386 sudo apt-get update sudo apt-get install libc6-i386 复制代码如果使用的Windows系统可以下载下面软件mingw https://sourceforge.net/projects/mingw/files/Installer/mingw-get-setup.exe/download 下载安装后按下图配置 C:MinGWmsys1.0 目录，并且执行 msys.bat 来开启 MinGW 终端窗口下载了SDK后在Debian或者Ubuntu里面解压SDK mkdir sdk_root tar zxvpf LinkIt_SDK_V3.3.1_public.tar.gz -C sdk_root tar -xv*** SDK_VX.Y.Z_tool_chain.tar.gz -C 复制代码 Windows下面的按下操作：将 /tools/PC_tool.zip 复制至您的 Windows 计算机。在 Windows 中解压缩PC_tool.zip 文档解压缩的目的地目录，在后面的章节当中，将一律简称为若您打算在 Windows MinGW 环境中编译项目，请依照本步骤准备 GCC 工具链：从此链接下载 GCC 工具链，文件名 gcc-ARM-none-eabi-4_8-2014q3-20140805-win32.zip 。在toolsgcc下创建一个名为 win 的新文件夹。将gcc-arm-none-eabi-4_8-2014q3-20140805-win32.zip 解压缩至 toolsgccwin 文件夹。将解压缩后的 gcc-arm-none-eabi-4_8-2014q3-20140805-win32 文件夹改名为 gcc-arm-none-eabi 。最后所形成的目录，应该有如下的文件： toolsgccwingcc-arm-none-eabibinarm-none-eabi-gcc.exe 下面开始创建项目，在/project/mt7687_hdk/apps文件夹中创建一个digitalclock文件夹 mkdir /project/mt7687_hdk/apps/digitalclock 复制代码然后将/project/mt7687_hdk/apps/freertos_thread_creation中文件拷贝到digitalclock目录 cd /project/mt7687_hdk/apps cp -r freertos_thread_creation digitalclock 复制代码修改 Makefile 设定 vi /project/mt7687_hdk/apps/digitalclock/GCC/Makefile 复制代码修改里面的PROJ_NAME和APP_PATH定义 # Project name PROJ_NAME = digitalclock APP_PATH = project/mt7687_hdk/apps/digitalclock 复制代码编辑main函数 vi /project/mt7687_hdk/apps/digitalclock/src/main.c 复制代码复制粘贴如下进去 #define AP_SSID "your_SSID" #define AP_PWD "your_pwd" #define NTP_SERVER1 "time.stdtime.gov.tw" #define NTP_SERVER2 "clock.stdtime.gov.tw" #define TIMEZONE_OFFSET 8 #define CURR_CENTURY 2000 /* End of modification / #include #include #include #include "FreeRTOS.h" #include "task.h" #include "os.h" #include "sys_init.h" #include "wifi_api.h" #include "network.h" #include "sntp.h" #include "syslog.h" #include "hal.h" #include #include "lcd.h" #define US2TICK(us) (us/(1000portTICK_RATE_MS)) #define MS2TICK(ms) (ms/(portTICK_RATE_MS)) static void _timezone_shift(hal_rtc_time_t* t, int offset_hour) { struct tm gt; struct tm nt; time_t secs; gt.tm_year = t->rtc_year + (CURR_CENTURY-1900); gt.tm_mon = t->rtc_mon-1; gt.tm_mday = t->rtc_day; gt.tm_wday = t->rtc_week; gt.tm_hour = t->rtc_hour; gt.tm_min = t->rtc_min; gt.tm_sec = t->rtc_sec; secs = mktime(>); secs += offset_hour 3600; nt = gmtime(&secs); if (!nt) { nt = localtime(&secs); } t->rtc_year = (nt->tm_year % 100); t->rtc_mon = nt->tm_mon + 1; t->rtc_day = nt->tm_mday; t->rtc_week = nt->tm_wday; t->rtc_hour = nt->tm_hour; t->rtc_min = nt->tm_min; t->rtc_sec = nt->tm_sec; } static void _sntp_check_loop(void) { hal_rtc_time_t r_time; hal_rtc_status_t ret; while(1) { ret = hal_rtc_get_time(&r_time); if (ret == 0) { char buf[20]; _timezone_shift(&r_time, TIMEZONE_OFFSET); LOG_I(common, "%04d/%d/%d %02d:%02d:%02d", r_time.rtc_year+CURR_CENTURY, r_time.rtc_mon, r_time.rtc_day, r_time.rtc_hour, r_time.rtc_min, r_time.rtc_sec); rgblcd_clear(); snprintf(buf, 19, "%04d/%d/%d", r_time.rtc_year+CURR_CENTURY, r_time.rtc_mon, r_time.rtc_day); rgblcd_setCursor(0, 0); rgblcd_write_str(buf); snprintf(buf, 19, "%02d:%02d:%02d", r_time.rtc_hour, r_time.rtc_min, r_time.rtc_sec); rgblcd_setCursor(0, 1); rgblcd_write_str(buf); } // wait 1 sec and retry vTaskDelay(MS2TICK(1000)); } } static void _i2c_write(uint8_t addr, uint8_t* data, uint8_t dataLen) { hal_i2c_status_t ret; ret = hal_i2c_master_send_polling(HAL_I2C_MASTER_0, addr, data, dataLen); if(HAL_I2C_STATUS_OK != ret) { LOG_E(common, "_i2c_write(%X) FAIL: %d", addr, ret); } } static void lcd_init(void) { hal_i2c_config_t i2c_init; hal_gpio_init(HAL_GPIO_27); hal_gpio_init(HAL_GPIO_28); hal_pinmux_set_function(HAL_GPIO_27,HAL_GPIO_27_I2C1_CLK); hal_pinmux_set_function(HAL_GPIO_28,HAL_GPIO_28_I2C1_DATA); hal_gpio_pull_up(HAL_GPIO_27); hal_gpio_pull_up(HAL_GPIO_28); i2c_init.frequency = HAL_I2C_FREQUENCY_100K; hal_i2c_master_init(HAL_I2C_MASTER_0, &i2c_init); rgblcd_registerFunc(_i2c_write); } static void main_task(void args) { LOG_I(common, "LCD init"); lcd_init(); rgblcd_begin(16, 2); LOG_I(common, "LCD init done"); rgblcd_setRGB(255, 0, 0); rgblcd_setCursor(0, 0); rgblcd_write_str("Connecting AP..."); LOG_I(common, "network init: %s, %s", AP_SSID, AP_PWD); network_init(AP_SSID, AP_PWD); LOG_I(common, "network init done"); rgblcd_setRGB(0, 255, 0); rgblcd_clear(); //SNTP start. sntp_setservername(0, NTP_SERVER1); sntp_setservername(1, NTP_SERVER2); sntp_init(); LOG_I(common, "SNTP inited"); vTaskDelay(MS2TICK(1000)); _sntp_check_loop(); } int main(void) { log_config_print_level(hal, PRINT_LEVEL_WARNING); system_init(); xTaskCreate(main_task, "main task", 1024, NULL, 1, NULL); vTaskStartScheduler(); / If all is well, the scheduler will now be running, and the following line will never be reached. If the following line does execute, then there was insufficient FreeRTOS heap memory available for the idle and/or timer tasks to be created. See the memory management section on the FreeRTOS web site for more details. / for ( ;; ); } 复制代码* 其中需要修改的参数如下，AP_SSID为无线信号名称、AP_PWD为无线信号密码，NTP_SERVER1和NTP_SERVER2为NTP服务器地址，TIMEZONE_OFFSET为时区，CURR_CENTURY为目前世纪 #define AP_SSID "your_SSID" #define AP_PWD "your_pwd" #define NTP_SERVER1 "time.stdtime.gov.tw" #define NTP_SERVER2 "clock.stdtime.gov.tw" #define TIMEZONE_OFFSET 8 #define CURR_CENTURY 2000 /* End of modification / 复制代码* 修改好main函数后保存修改，然后切换到项目文件夹开始编译 cd /project/mt7687_hdk/apps/digitalclock/GCC make 复制代码编译完成后将build下文件夹拷贝出来，按下面方法下载到开发板然后上电即可完成程序烧写 https://docs.labs.mediatek.com/resource/mt7687-mt7697/zh_cn/get-started-linkit-7687/gcc-arm-embedded-command-line-tools-free/download-a-pre-built-binary-example 效果如下图 0 timg.jpg (15.96 KB, 下载次数: 8)
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