#include #include #include #define SW_PIN 1 //重置TIMEER #define FRAM_CS 10 #define FRAM_COUNT 10 #define FRAM_ADDR_OFFSET_TIME 4 #define FRAM_START_ADDR_TIME 0x0000 // 时间存储地址，0x0000 – 0x1FFF #define FRAM_WREN 0x06 // 使能 #define FRAM_READ 0x03 // 读操作 #define FRAM_WRITE 0x02 // 写操作 #define FRAM_WRDI 0x04 //失能 #define FRAM_RDSR 0x05 //读状态 #define FRAM_WRSR 0x01 //写状态 uint32_t TimeTotle = 0; uint32_t timebegin = 0; TM1650 d; //片选拉低，开始SPI inline void framSelect() { SPI.beginTransaction(SPISettings(8000000, MSBFIRST, SPI_MODE0)); digitalWrite(FRAM_CS, LOW); } //片选拉高，结束SPI inline void framDeselect() { digitalWrite(FRAM_CS, HIGH); SPI.endTransaction(); } //写使能，在执行写操作前必须调用 inline void framWriteEnable() { framSelect(); SPI.transfer(FRAM_WREN); framDeselect(); } uint8_t framReadStatus() { framSelect(); SPI.transfer(FRAM_RDSR); uint8_t s = SPI.transfer(0x00); framDeselect(); return s; } void framWriteStatus(uint8_t s) { framWriteEnable(); framSelect(); SPI.transfer(FRAM_WRSR); SPI.transfer(s); framDeselect(); } void framWriteDisable() { framSelect(); SPI.transfer(FRAM_WRDI); framDeselect(); } // 确保可写（不需要保护时清零SR），放在 SPI.begin 与片选初始化之后调用一次 ensureFramWritable() ，即可确认未被保护。 void ensureFramWritable() { uint8_t sr = framReadStatus(); // 若不需要任何块保护，统一清零 if (sr != 0x00) { framWriteStatus(0x00); } framWriteDisable(); } //读操作 //addr：读取地址（16位） //返回：读取的32位数据（大端序） uint32_t framRead32(uint16_t addr) { framSelect(); // 片选拉低，开始SPI SPI.transfer(FRAM_READ); // 发送读操作指令 SPI.transfer((addr >> 8) & 0xFF); // 发送高8位地址 SPI.transfer(addr & 0xFF); // 发送低8位地址 uint32_t v = 0; v |= ((uint32_t)SPI.transfer(0x00)) << 24; // 接收高8位数据 v |= ((uint32_t)SPI.transfer(0x00)) << 16; // 接收次高8位数据 v |= ((uint32_t)SPI.transfer(0x00)) << 8; // 接收次低8位数据 v |= ((uint32_t)SPI.transfer(0x00)); // 接收低8位数据 framDeselect(); // 片选拉高，结束SPI return v; // 返回读取到的32位数据（大端序） } //写操作 //addr：写入地址（16位） //val：写入的数据（32位） void framWrite32(uint16_t addr, uint32_t val) { framWriteEnable(); framSelect(); // 片选拉低，开始SPI SPI.transfer(FRAM_WRITE); // 发送写操作指令 SPI.transfer((addr >> 8) & 0xFF); // 发送高8位地址 SPI.transfer(addr & 0xFF); // 发送低8位地址 SPI.transfer((val >> 24) & 0xFF); // 发送高8位数据 SPI.transfer((val >> 16) & 0xFF); // 发送次高8位数据 SPI.transfer((val >> 8) & 0xFF); // 发送次低8位数据 SPI.transfer(val & 0xFF); // 发送低8位数据 framDeselect(); // 片选拉高，结束SPI } // TickType_t xLastWakeTime; const TickType_t xFrequency = 1000 - 100; bool flashdot=true; //显示自定义4字符 //a：长度为4的字符数组，按从右到左显示 //dot：小数点位置索引 void showtime(char a[4],int dot=1) { char b[4]; for (size_t i = 0; i < 4; i++) { b[i]=a[3-i]; /* code */ } d.displayString(b); d.setDot(dot,flashdot); flashdot=!flashdot; } //显示累计秒数 //second：累计秒数，内部按小时格式化为4位显示 void showtime(double second) { char bb[4]; int a=second; int b=a%3600; b=b*10/3600; bb[0]=String(b).charAt(0); int c=a/3600; b=c%10; bb[1]=String(b).charAt(0); c=c/10; b=c%10; bb[2]=String(b).charAt(0); c=c/10; b=c%10; bb[3]=String(b).charAt(0); d.displayString(bb); d.setDot(1,flashdot); flashdot=!flashdot; //Serial.println(bb); } int iiii=10; void setup() { Serial.begin(115200); //Start serial communication at 9600 for debug statements Serial.println("\n============system start===========\n"); Wire.setPins(5, 4); //SDA, SCL Wire.begin(); //Join the bus as master delay(500); pinMode(SW_PIN, INPUT_PULLUP); timebegin=millis(); pinMode(FRAM_CS, OUTPUT); digitalWrite(FRAM_CS, HIGH); SPI.begin(12, 13, 11, FRAM_CS); //SCK, MISO, MOSI, CS ensureFramWritable(); uint32_t time_buffer[FRAM_COUNT]; for (uint32_t i = 0; i < FRAM_COUNT; i++) { time_buffer[i] = framRead32(FRAM_START_ADDR_TIME + i * FRAM_ADDR_OFFSET_TIME); Serial.printf("time_buffer[%d] = %d \n", i, time_buffer[i]); } bool flag=true; for (uint32_t i = 0; i < FRAM_COUNT; i++) { if(time_buffer[0] == time_buffer[i]) { TimeTotle = time_buffer[0]; } else { flag=false; break; } } uint32_t time_count_buffer[FRAM_COUNT] = {0,0,0,0,0,0,0,0,0,0}; uint32_t max_count = 0; uint32_t max_count_index = 0; if(!flag) { Serial.println("Time Counting..."); for (uint32_t i = 0; i < FRAM_COUNT; i++) { for(uint32_t j = 0; j < FRAM_COUNT; j++) { if(time_buffer[i] == time_buffer[j]) { time_count_buffer[i]++; } } Serial.printf("time_count_buffer[%d] = %d \n", i, time_count_buffer[i]); if(time_count_buffer[i] > max_count) { max_count = time_count_buffer[i]; max_count_index = i; } } Serial.printf("Max Count: %d \n", max_count); TimeTotle = time_buffer[max_count_index]; } Serial.printf("Initial TimeTotle: %d \n", TimeTotle); Serial.println("TM1650 Example Code"); d.init(); d.setBrightness(0x01); // xLastWakeTime = xTaskGetTickCount(); // unsigned long timenow=millis(); // if (TimeTotle<(unsigned long)(999.8*3600)) // { // TimeTotle=TimeTotle+(timenow-timebegin)/1000; // timebegin=timenow; // } // showtime(TimeTotle*1.0); } void loop() { unsigned long timenow=millis(); TimeTotle = TimeTotle+(timenow-timebegin)/1000; timebegin = timenow; Serial.printf("TimeTotle: %d \n", TimeTotle); if (TimeTotle<(unsigned long)(999.8*3600)) { showtime(TimeTotle*1.0); } else { uint32_t max_time = 999.9 * 3600; Serial.printf("Time is over \n" ); showtime(max_time*1.0); } // Serial.println("show time"); if (digitalRead(SW_PIN)==0) { Serial.println("you have put the butten reset"); iiii--; if (iiii==0) { TimeTotle=0; for (uint32_t i = 0; i < FRAM_COUNT; i++) { framWrite32((FRAM_START_ADDR_TIME + i * FRAM_ADDR_OFFSET_TIME), (uint32_t)TimeTotle); vTaskDelay(10); } Serial.println("you have reset the time"); } } else { iiii=10; } // Serial.println("save time"); for (uint32_t i = 0; i < FRAM_COUNT; i++) { framWrite32((FRAM_START_ADDR_TIME + i * FRAM_ADDR_OFFSET_TIME), (uint32_t)TimeTotle); vTaskDelay(10); } vTaskDelay(xFrequency); // delay(1000); }