STM32使用PCF8563

#include "pcf8563.h" extern TIME getTIME; /**STM32的IIC初始化函数*****************************/ void IIC_Init(void) { GPIO_InitTypeDef GPIO_InitStructure;//声明GPIO初始化结构体 I2C_InitTypeDef I2C_InitStructure; //声明IIC初始化结构体 // configrarion of STM32 GPIO // GPIOB Periph clock enable RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); // I2C1 and I2C2 Periph clock enable //RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE); // Configure I2C1 pins: SCL and SDA // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD; GPIO_Init(GPIOB, &GPIO_InitStructure); // conifgration of I2C I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;//IIC模式 I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;//IIC时钟 I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;//反馈信号使能 I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;//地址位设置 // I2C_InitStructure.I2C_ClockSpeed = 100000;//传输速度相关设置 I2C_InitStructure.I2C_ClockSpeed = 100000; I2C_InitStructure.I2C_OwnAddress1 = Write_Pcf8563; //PFC8563 //I2C_Cmd(I2C1, ENABLE); I2C_Cmd(I2C2, ENABLE); // I2C_Init(I2C1, &I2C_InitStructure); I2C_Init(I2C2, &I2C_InitStructure); } /**PFC8563 写数据函数*****************************/ void Rtc8563Write(u8 rtc_addr, u8 rtc_cmd) { I2C_GenerateSTART(I2C2, ENABLE); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_MODE_SELECT)); I2C_Send7bitAddress(I2C2, Write_Pcf8563, I2C_Direction_Transmitter); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED)); I2C_SendData(I2C2, rtc_addr); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_TRANSMITTED)); I2C_SendData(I2C2, rtc_cmd); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_TRANSMITTED)); I2C_GenerateSTOP(I2C2, ENABLE); } /**PFC8563读数据函数*****************************/ u8 RTC8563Read(u8 rtc_addr) { u8 rev_data; // IIC_Init();//在调试的时候，发现每次读出数据的时候，都需要初始化IIC否则就会出错，具体的原因正在研究中。。。。 I2C_GenerateSTART(I2C2, ENABLE); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_MODE_SELECT)); // printf("setp1!\n\r"); I2C_Send7bitAddress(I2C2, Write_Pcf8563, I2C_Direction_Transmitter); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED)); // printf("setp2!\n\r"); //I2C_Cmd(I2C1,ENABLE); //使能I2C I2C_SendData(I2C2, rtc_addr); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_TRANSMITTED)); // printf("setp3!\n\r"); I2C_GenerateSTART(I2C2, ENABLE); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_MODE_SELECT)); // printf("setp4!\n\r"); I2C_Send7bitAddress(I2C2, Read_Pcf8563, I2C_Direction_Receiver); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED)); // printf("setp5!\n\r"); while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_RECEIVED)); // printf("setp6!\n\r"); rev_data = I2C_ReceiveData(I2C2); I2C_AcknowledgeConfig(I2C2, DISABLE); //关闭I2C的应答功能 I2C_GenerateSTOP(I2C2, ENABLE); return rev_data; } /**设置PFC8563时间*****************************/ void Rtc8563_SetTime(unsigned char year, unsigned char month, unsigned char day, unsigned char hour, unsigned char mint, unsigned char second) { IIC_Init(); Rtc8563Write(Addr_second, second); Rtc8563Write(Addr_mint, mint); Rtc8563Write(Addr_hour, hour); Rtc8563Write(Addr_day, day); Rtc8563Write(Addr_month, month); Rtc8563Write(Addr_year, year); Rtc8563Write(0x00, 0x00); return; } /**读取PFC8563时间*****************************/ u8 Rtc8563_GetTimer(void) { int tmp; int i =5000; // TIME getTIME; tmp = RTC8563Read(Addr_second)&0x7f; tmp =(tmp/16)*10+tmp%16; getTIME.second = tmp;//读出的数据需要做转换才能直接使用 , 得到十进制数 //printf("setp1!\n\r"); tmp = RTC8563Read(Addr_mint)&0x7f; tmp =(tmp/16)*10+tmp%16; getTIME.mint = tmp; //printf("setp2!\n\r"); //有时候可能需要在每个数据读出后，添加一个延时 //while(i--); tmp = RTC8563Read(Addr_hour)&0x3f; tmp =(tmp/16)*10+tmp%16; getTIME.hour = tmp; //printf("setp3!\n\r"); tmp = RTC8563Read(Addr_day)&0x3f; tmp =(tmp/16)*10+tmp%16; getTIME.day = tmp; //printf("setp4!\n\r"); tmp = RTC8563Read(Addr_month)&0x1f; tmp =(tmp/16)*10+tmp%16; getTIME.month = tmp; // printf("setp5!\n\r"); tmp = RTC8563Read(Addr_year)&0x1f; tmp =(tmp/16)*10+tmp%16; getTIME.year = tmp; //while(i--); // printf("setp6!\n\r"); //return (); } void PCF8563_set_day_alarm(unsigned char day) //day :BCD码，用十六进制数写十进制数 { Rtc8563Write(Addr_day_alarm, day); //Rtc8563Write(0x01,0x02);//AIE置1 } void PCF8563_set_hour_alarm(unsigned char hour) { Rtc8563Write(Addr_hour_alarm, hour); //Rtc8563Write(0x01,0x02);//AIE置1 } void PCF8563_set_minute_alarm(unsigned char minute) { Rtc8563Write(Addr_minute_alarm, minute); //Rtc8563Write(0x01,0x02);//AIE置1 } void PCF8563_alarm_enable() { Rtc8563Write(0x01,0x02);//AIE置1 } void PCF8563_clean_AF() { Rtc8563Write(0x01,0x00);//AF清零，AIE也清了，需要再次设置;AF清零后INT恢复 } void PCF8563_Setalarm_Oneminute() { Rtc8563_GetTimer(); printf("20%d/%d/%d/%d/%d/%d\n\r",getTIME.year,getTIME.month,getTIME.day,getTIME.hour,getTIME.mint,getTIME.second); // printf("get time over!\n\r"); if(getTIME.mint<59) { PCF8563_set_minute_alarm(((getTIME.mint+1)/10)*16+(getTIME.mint+1)%10); printf("set minute %d over!\n\r",getTIME.mint+1); // PCF8563_set_minute_alarm(0x15); } else { PCF8563_set_minute_alarm(0x00); printf("set minute 0 over!\n\r"); } if(getTIME.hour<23) { if(getTIME.mint<59) { PCF8563_set_hour_alarm(((getTIME.hour)/10)*16+(getTIME.hour)%10); printf("set hour %d over!\n\r",getTIME.hour); } else { PCF8563_set_hour_alarm(((getTIME.hour+1)/10)*16+(getTIME.hour+1)%10); printf("set hour %d over!\n\r",getTIME.hour+1); } } else //说明是==23，得判断下分钟 { // if(getTIME.mint <=58) { PCF8563_set_hour_alarm(0x23); printf("set hour 23 over!\n\r"); } else //==59分 { PCF8563_set_hour_alarm(0x00); printf("set hour 0 over!\n\r"); } } PCF8563_alarm_enable(); } void PCF8563_GPIO_Config() { GPIO_InitTypeDef GPIO_InitStructure; //PB8用，PCF8563中断 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOB, &GPIO_InitStructure); } void PCF8563_Setalarm_Twominutes() // 设置偶数分钟 { Rtc8563_GetTimer(); printf("20%d/%d/%d/%d/%d/%d\n\r",getTIME.year,getTIME.month,getTIME.day,getTIME.hour,getTIME.mint,getTIME.second); // printf("get time over!\n\r"); if(getTIME.mint<58) { PCF8563_set_minute_alarm(((getTIME.mint+2)/10)*16+(getTIME.mint+2)%10-(getTIME.mint%2)); //保证设置的是偶数分钟 printf("set minute %d over!\n\r",getTIME.mint+2); // PCF8563_set_minute_alarm(0x15); } else { PCF8563_set_minute_alarm(0x00); printf("set minute 0 over!\n\r"); } if(getTIME.hour<23) { if(getTIME.mint<58) { PCF8563_set_hour_alarm(((getTIME.hour)/10)*16+(getTIME.hour)%10); print