【XR806开发板试用】实时时钟
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spi+ntp+max7219=实时时钟
wifi 通过ntp获取时间 交由8位数码管显示
PIN 使用
1-5V
11-GND
12-SPI0_MOSI
13-SPI0_CS0
14-SPI0_MISO -未使用
15-SPI0_CLK
接线
xr806----------8位数码管max7219
1-----------------vcc
11----------------gnd
12----------------din
13----------------cs
15----------------clknano 是命令行文本编辑工具 纯个人习惯
make 是我当前帐号的名字
cd /home/make/xr806_openharmony/device/xradio/xr806/ohosdemo/
也可cd ~/xr806_openharmony/device/xradio/xr806/ohosdemo/ 即当前登录帐号目录nano BUILD.gn
group("ohosdemo") { deps = [ "sntp:app_sntp_Test", ] }ctrl+o 保存
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ctrl+x 退出创建目录
mkdir sntp
cd sntp
nano BUILD.gnimport("//device/xradio/xr806/liteos_m/config.gni") static_library("app_sntp_Test") { configs = [] sources = [ "main.c", ] cflags = board_cflags include_dirs = board_include_dirs include_dirs += [ ".", "//utils/native/lite/include", "//foundation/communication/wifi_lite/interfaces/wifiservice", "//device/xradio/xr806/xr_skylark/include/net/sntp", "//base/iot_hardware/peripheral/interfaces/kits", ] }ctrl+o 保存
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ctrl+x 退出nano main.c
#include <stdio.h> #include "ohos_init.h" #include "kernel/os/os.h" #include "wifi_device.h" #include "sntp.h" #include "iot_gpio.h" #include "driver/chip/hal_spi.h" #include "common/framework/platform_init.h" /* spi */ #define DEMO_SPI_MCLK (48 * 1000 * 1000) #define DEMO_SPI_CS_LEVEL 0 #define DEMO_SPI_PORT SPI0 #define DEMO_SPI_CS SPI_TCTRL_SS_SEL_SS0 #define DEMO_FLASH_INSTRUCTION_RDID 0x9F /* flash jedec id */ static OS_Thread_t g_main_thread; static OS_Thread_t g_time_thread; #define WIFI_DEVICE_CONNECT_AP_SSID "11111111"//wifi名称 #define WIFI_DEVICE_CONNECT_AP_PSK "11111111"//wifi密码 #define SNTP_YEAR_OFFSET (2000) #define CMD_SYSLOG printf #define CMD_LOG(flags, fmt, arg...) \ do \ { \ if (flags) \ CMD_SYSLOG(fmt, ##arg); \ } while (0) /*8 DIGITS begin*/ #define NUMBER_OF_DIGITS 8 typedef enum { REG_NO_OP = 0x00, REG_DIGIT_0 = 0x01, REG_DIGIT_1 = 0x02, REG_DIGIT_2 = 0x03, REG_DIGIT_3 = 0x04, REG_DIGIT_4 = 0x05, REG_DIGIT_5 = 0x06, REG_DIGIT_6 = 0x07, REG_DIGIT_7 = 0x08, REG_DECODE_MODE = 0x09, //译码方式，0x00为不译码，0xff为译码 REG_INTENSITY = 0x0A, //显示亮度，取值范围0~f REG_SCAN_LIMIT = 0x0B, // 8位扫描显示，取值范围0x01~0x07 REG_SHUTDOWN = 0x0C, //操作方式，0x00为低功耗模式，0x01为正常操作模式 REG_DISPLAY_TEST = 0x0F, //显示状态，0x00为正常显示，0x01为显示测试 } MAX7219_REGISTERS; typedef enum { DIGIT_1 = 1, DIGIT_2 = 2, DIGIT_3 = 3, DIGIT_4 = 4, DIGIT_5 = 5, DIGIT_6 = 6, DIGIT_7 = 7, DIGIT_8 = 8 } MAX7219_Digits; typedef enum { NUM_0 = 0x00, NUM_1 = 0x01, NUM_2 = 0x02, NUM_3 = 0x03, NUM_4 = 0x04, NUM_5 = 0x05, NUM_6 = 0x06, NUM_7 = 0x07, NUM_8 = 0x08, NUM_9 = 0x09, MINUS = 0x0A, //-号 LETTER_E = 0x0B, LETTER_H = 0x0C, LETTER_L = 0x0D, LETTER_P = 0x0E, BLANK = 0x0F, //无显示 LETTER_AR = 0x10 //=16 =SYMBOLS AorR } MAX7219_Numeric; void max7219_Init(uint8_t intensivity); void max7219_SetIntensivity(uint8_t intensivity); void max7219_Clean(void); /*void max7219_SendData(uint8_t addr, uint8_t data);*/ void max7219_Turn_On(void); void max7219_Turn_Off(void); void max7219_Decode_On(void); void max7219_Decode_Off(void); void max7219_PrintDigit(MAX7219_Digits position, MAX7219_Numeric numeric, bool point); MAX7219_Digits max7219_PrintItos(MAX7219_Digits position, int value); MAX7219_Digits max7219_PrintNtos(MAX7219_Digits position, uint32_t value, uint8_t n); MAX7219_Digits max7219_PrintFtos(MAX7219_Digits position, float value, uint8_t n); int LED8Main(void); static uint8_t decodeMode = 0x00; static uint8_t SYMBOLS[] = { 0x7E, // numeric 0 0x30, // numeric 1 0x6D, // numeric 2 0x79, // numeric 3 0x33, // numeric 4 0x5B, // numeric 5 0x5F, // numeric 6 0x70, // numeric 7 0x7F, // numeric 8 0x7B, // numeric 9 0x01, // minus 0x4F, // letter E 0x37, // letter H 0x0E, // letter L 0x67, // letter P 0x00, // blank 0x77 //AorR }; static uint16_t getSymbol(uint8_t number); static uint32_t lcdPow10(uint8_t n); /*8 DIGITS func end*/ void max7219_Init(uint8_t intensivity) { max7219_Turn_On(); max7219_SendData(REG_SCAN_LIMIT, NUMBER_OF_DIGITS - 1); max7219_SetIntensivity(intensivity); max7219_Clean(); } //显示亮度 void max7219_SetIntensivity(uint8_t intensivity) { if (intensivity > 0x0F) { return; } max7219_SendData(REG_INTENSITY, intensivity); } void max7219_Clean() { uint8_t clear = 0x00; if (decodeMode == 0xFF) { clear = BLANK; } for (int i = 0; i < 8; ++i) { max7219_SendData(i + 1, clear); } } // #define data_len (20*1024) #define data_len (20 * 1024) uint8_t tx_data[data_len] = {0}; inline void max7219_SendData(uint8_t addr, uint8_t data) { HAL_Status ret = HAL_OK; HAL_SPI_CS(DEMO_SPI_PORT, 1); // printf("spi write...\n"); tx_data[0] = addr; tx_data[1] = data; ret = HAL_SPI_Transmit(DEMO_SPI_PORT, &tx_data, 2); if (ret != HAL_OK) { printf("spi 1write failed"); } HAL_SPI_CS(DEMO_SPI_PORT, 0); } //操作方式 void max7219_Turn_On(void) { max7219_SendData(REG_SHUTDOWN, 0x01); } //操作方式 void max7219_Turn_Off(void) { max7219_SendData(REG_SHUTDOWN, 0x00); } //译码方式 void max7219_Decode_On(void) { decodeMode = 0xFF; max7219_SendData(REG_DECODE_MODE, decodeMode); } //译码方式 void max7219_Decode_Off(void) { decodeMode = 0x00; max7219_SendData(REG_DECODE_MODE, decodeMode); } void max7219_PrintDigit(MAX7219_Digits position, MAX7219_Numeric numeric, bool point) { if (position > NUMBER_OF_DIGITS) { return; } if (point) { if (decodeMode == 0x00) { max7219_SendData(position, getSymbol(numeric) | (1 << 7)); } else if (decodeMode == 0xFF) { max7219_SendData(position, numeric | (1 << 7)); } } else { if (decodeMode == 0x00) { max7219_SendData(position, getSymbol(numeric) & (~(1 << 7))); } else if (decodeMode == 0xFF) { max7219_SendData(position, numeric & (~(1 << 7))); } } } MAX7219_Digits max7219_PrintItos(MAX7219_Digits position, int value) { max7219_SendData(REG_DECODE_MODE, 0xFF); int32_t i; if (value < 0) { if (position > 0) { max7219_SendData(position, MINUS); position--; } value = -value; } i = 1; while ((value / i) > 9) { i *= 10; } if (position > 0) { max7219_SendData(position, value / i); position--; } i /= 10; while (i > 0) { if (position > 0) { max7219_SendData(position, (value % (i * 10)) / i); position--; } i /= 10; } max7219_SendData(REG_DECODE_MODE, decodeMode); return position; } MAX7219_Digits max7219_PrintNtos(MAX7219_Digits position, uint32_t value, uint8_t n) { max7219_SendData(REG_DECODE_MODE, 0xFF); if (n > 0u) { uint32_t i = lcdPow10(n - 1u); while (i > 0u) /* Display at least one symbol */ { if (position > 0u) { max7219_SendData(position, (value / i) % 10u); position--; } i /= 10u; } } max7219_SendData(REG_DECODE_MODE, decodeMode); return position; } MAX7219_Digits max7219_PrintFtos(MAX7219_Digits position, float value, uint8_t n) { if (n > 4) { n = 4; } max7219_SendData(REG_DECODE_MODE, 0xFF); if (value < 0.0) { if (position > 0) { max7219_SendData(position, MINUS); position--; } value = -value; } position = max7219_PrintItos(position, (int32_t)value); if (n > 0u) { max7219_PrintDigit(position + 1, ((int32_t)value) % 10, true); position = max7219_PrintNtos(position, (uint32_t)(value * (float)lcdPow10(n)), n); } max7219_SendData(REG_DECODE_MODE, decodeMode); return position; } static uint16_t getSymbol(uint8_t number) { return SYMBOLS[number]; } static uint32_t lcdPow10(uint8_t n) { uint32_t retval = 1u; while (n > 0u) { retval *= 10u; n--; } return retval; } /*8 DIGITS func end*/ static int wifi_device_connect() { const char ssid_want_connect[] = WIFI_DEVICE_CONNECT_AP_SSID; const char psk[] = WIFI_DEVICE_CONNECT_AP_PSK; if (WIFI_SUCCESS != EnableWifi()) { printf("Error: EnableWifi fail.\n"); return; } printf("EnableWifi Success.\n"); if (WIFI_STA_ACTIVE == IsWifiActive()) printf("Wifi is active.\n"); OS_Sleep(1); if (WIFI_SUCCESS != Scan()) { printf("Error: Scan fail.\n"); return; } printf("Wifi Scan Success.\n"); OS_Sleep(1); WifiScanInfo scan_results[30]; unsigned int scan_num = 30; if (WIFI_SUCCESS != GetScanInfoList(scan_results, &scan_num)) { printf("Error: GetScanInfoList fail.\n"); return; } WifiDeviceConfig config = {0}; int netId = 0; int i; for (i = 0; i < scan_num; i++) { if (0 == strcmp(scan_results[i].ssid, ssid_want_connect)) { memcpy(config.ssid, scan_results[i].ssid, WIFI_MAX_SSID_LEN); memcpy(config.bssid, scan_results[i].bssid, WIFI_MAC_LEN); strcpy(config.preSharedKey, psk); config.securityType = scan_results[i].securityType; config.wapiPskType = WIFI_PSK_TYPE_ASCII; config.freq = scan_results[i].frequency; break; } } if (i >= scan_num) { printf("Error: No found ssid in scan_results\n"); return; } printf("GetScanInfoList Success.\n"); if (WIFI_SUCCESS != AddDeviceConfig(&config, &netId)) { printf("Error: AddDeviceConfig Fail\n"); return; } printf("AddDeviceConfig Success.\n"); if (WIFI_SUCCESS != ConnectTo(netId)) { printf("Error: ConnectTo Fail\n"); return; } printf("ConnectTo Success\n"); } static int my_sntp_init() { if (sntp_set_server(0, "0.cn.pool.ntp.org") == 0) { printf("set OK \r\n"); } } int LED8Main(void) { printf("platform_init.\n"); /*platform_init();*/ printf("spi demo started.\n"); SPI_Global_Config spi_param; spi_param.cs_level = DEMO_SPI_CS_LEVEL; spi_param.mclk = DEMO_SPI_MCLK; HAL_SPI_Init(DEMO_SPI_PORT, &spi_param); SPI_Config spi_Config; HAL_Status ret = HAL_OK; uint8_t cmd = DEMO_FLASH_INSTRUCTION_RDID; /* read flash id cmd */ uint32_t data = 0; spi_Config.firstBit = SPI_TCTRL_FBS_MSB; // //SPI_LITTLEENDIAN;//第一字节 SPI_LITTLEENDIAN,SPI_BIGENDIAN spi_Config.mode = SPI_CTRL_MODE_MASTER; //SPI_MODE_MASTER;//SPI_MODE_SLAVE 从,SPI_MODE_MASTER 主 spi_Config.opMode = SPI_OPERATION_MODE_POLL; spi_Config.sclk = 24000000; spi_Config.sclkMode = SPI_SCLK_Mode0; printf("spi open...\n"); ret = HAL_SPI_Open(DEMO_SPI_PORT, DEMO_SPI_CS, &spi_Config, 5000); if (ret != HAL_OK) { printf("spi open failed"); return ret; } HAL_SPI_Config(DEMO_SPI_PORT, SPI_ATTRIBUTION_IO_MODE, SPI_IO_MODE_NORMAL); printf("spi demo over.\n"); return 0; } //抄 https://github.com/taburyak/STM32_MAX7219_SPI //demos https://stm32withoutfear.blogspot.com/2019/06/stm32-7segments-8digits-max7219-spi.html static void MainThread(void *arg) { printf("MainThread.\n"); LED8Main(); max7219_Init(7); max7219_SetIntensivity(1); max7219_Decode_Off(); max7219_SendData(DIGIT_4,79); max7219_SendData(DIGIT_3, 119); max7219_SendData(DIGIT_2, 119); LOS_Msleep(5000); max7219_Decode_On(); max7219_PrintNtos(DIGIT_8,88888888, 8); //此处前面带 0 补充4位 LOS_Msleep(1000); max7219_Clean(); int modi; int setint = 1; while (1) { modi++; setint++; if (setint == 16) { setint = 1; } max7219_SetIntensivity(setint); if (WIFI_STA_ACTIVE == IsWifiActive()) { // max7219_Clean(); printf("Wifi is active.\n"); if (sntp_request(NULL) != 0) { //视频中用手捂住开发板后会进入此处 /*max7219_PrintDigit(DIGIT_4, LETTER_E, false);*/ LOS_Msleep(1); max7219_Decode_Off(); max7219_Clean(); LOS_Msleep(1); max7219_PrintDigit(DIGIT_6, LETTER_AR,false);//A OR R max7219_SendData(DIGIT_4,79);//E max7219_SendData(DIGIT_3, 119);//R max7219_SendData(DIGIT_2, 119);//R LOS_Msleep(5000); max7219_Decode_On(); max7219_Clean(); printf("<sntp> <response : fail>\n"); // goto bexit; } else { // max7219_Clean(); sntp_time *time = (sntp_time *)sntp_obtain_time(); printf("<sntp><response:success>\n"); //11111111 if (modi % 2 == 0) { max7219_PrintNtos(DIGIT_8, time->year + SNTP_YEAR_OFFSET, 4);//年 max7219_PrintNtos(DIGIT_4, time->mon, 2); //月 max7219_PrintNtos(DIGIT_2, time->day, 2); //日 } else { max7219_PrintNtos(DIGIT_8, time->hour, 2);//小时 第一位无数字自动补充0 max7219_PrintDigit(DIGIT_6, BLANK, true);// 。 max7219_PrintNtos(DIGIT_5, time->min, 2);//分 第一位无数字自动补充0 max7219_PrintDigit(DIGIT_3, BLANK, true);// 。 max7219_PrintNtos(DIGIT_2, time->sec & 0x3f, 2);//秒 第一位无数字自动补充0 } CMD_LOG(1, "sntp(%u-%02u-%02u ", time->year + SNTP_YEAR_OFFSET, time->mon, time->day); CMD_LOG(1, "%02u:%02u:%02u)\n", time->hour, time->min, time->sec); LOS_Msleep(4000); } } else { //初始化连接 wifi max7219_Clean(); max7219_PrintDigit(DIGIT_8, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_7, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_6, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_5, BLANK, true); printf("Wifi is passive.\n"); wifi_device_connect(); max7219_PrintDigit(DIGIT_4, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_3, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_2, BLANK, true); LOS_Msleep(1000); max7219_PrintDigit(DIGIT_1, BLANK, true); LOS_Msleep(1000); } } printf("bexit is passive.\n"); } void SNTPTestMain(void) //(2) { printf("SNTP Test Start\n"); if (OS_ThreadIsValid(&g_main_thread)) { printf("sntp task is running\n"); } else { if (OS_ThreadCreate(&g_main_thread, "MainThread", MainThread, NULL, OS_THREAD_PRIO_APP, 4 * 1024) != OS_OK) { printf("[ERR] Create SNTP Test MainThread Failed\n"); } } } SYS_RUN(SNTPTestMain); //必须以app开头 否则不会调用ctrl+o 保存
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ctrl+x 退出对上面操作完毕后
由于我们修改了/home/make/xr806_openharmony/device/xradio/xr806/ohosdemo/BUILD.gn
cd /home/make/xr806_openharmony
hb build -f
必须-f 如若未修改BUILD.gn 大可不必 直接 hb build 即可 -
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