/*-------------------------------------------------------------------------------------- * @file FM31256.c * @author ZhangJing * @version base on stm32f0x * @date 2015.09.11 * @brief FM31256驱动 ---------------------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------------------- * @file FM31256.c * @author ZhangJing * @version base on stm32f0x * @date 2015.09.11 * @brief FM31256驱动 ---------------------------------------------------------------------------------------*/ #include "stm32f10x_gpio.h" #include "TypeDefine.h" #include "IICSetup.h" #include "FM31256.h" /************************************************************************************* * Function: hex_to_bcd * Object: 十六进数转换成BCD码 * 输入: unsigned char condata需转换数据 * 输出: 转换完成的BCD码 * 备注: unsigned char temp; unsigned char temp0; unsigned char temp10; 做数据计算的临时变量 **************************************************************************************/ unsigned char hex_to_bcd(unsigned char condata) { unsigned char temp; unsigned char temp0; unsigned char temp10; temp10=condata/10; temp0=condata%10; temp=(temp10<<4)|temp0; return(temp); } /************************************************************************************* * Function: bcd_to_hex * Object: BCD码转换成十六进制数 * 输入: unsigned char condata需转换数据 * 输出: 转换完成的BCD码 * 备注: unsigned char temp; unsigned char temp0; unsigned char temp10; 做数据计算的临时变量 **************************************************************************************/ unsigned char bcd_to_hex(unsigned char condata) { unsigned char temp; unsigned char temp0; unsigned char temp10; temp10=(condata&0xF0)>>4; temp0=condata&0x0F; temp=temp10*10+temp0; return(temp); } /************************************************************************************* * Function: Read_Reg * Object: 读取FM31256寄存器 * 输入: unsigned char addr, 读取地址 unsigned char *ucDataPtr 读取数据存储指针 * 输出: 返回读取状态 * 备注: unsigned char read_data=0xaa;读取数据 unsigned char tempState = 0;状态值 **************************************************************************************/ unsigned char Read_Reg(unsigned char addr, unsigned char *ucDataPtr) { unsigned char read_data=0xaa; unsigned char tempState = 0; //启动 if(RTC_START()!=RTC_READY) return 0; //TWI_START(); //从机地址写入 tempState = RTC_SendByte( Const_REG_ADDR + Const_IIC_WRITE ); //tempState = TWI_SendByte( Const_REG_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } //输出地址 tempState = RTC_SendByte( addr ); //tempState = TWI_SendByte( addr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } //启动 if(RTC_START()!=RTC_READY) return 0; //TWI_START(); //从机地址写入 tempState = RTC_SendByte( Const_REG_ADDR + Const_IIC_READ ); //tempState = TWI_SendByte( Const_REG_ADDR + Const_IIC_READ ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } read_data = RTC_ReceiveByte(); //read_data = TWI_ReceiveByte(); RTC_STOP(); //TWI_STOP(); *ucDataPtr=read_data; return 1; } /************************************************************************************* * Function: Write_Reg * Object: 写FM31256寄存器 * 输入: unsigned char addr, 写入地址 unsigned char data 写入数据 * 输出: 返回写入状态 * 备注: unsigned char tempState = 0;状态值 **************************************************************************************/ unsigned char Write_Reg(unsigned char addr,unsigned char data) { unsigned char tempState = 0; //启动 if(RTC_START()!=RTC_READY) return 0; //TWI_START(); //从机地址写入 tempState = RTC_SendByte( Const_REG_ADDR + Const_IIC_WRITE ); //tempState = TWI_SendByte( Const_REG_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } //输出地址 tempState = RTC_SendByte( addr ); //tempState = TWI_SendByte( addr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } //输出地址 tempState = RTC_SendByte( data ); //tempState = TWI_SendByte( data ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 //TWI_STOP(); return( tempState ); } RTC_STOP(); //TWI_STOP(); return 1; } /********************************************************************************* * Function: Read_FM31256RAM * Object: 单个读出RAM寄存器 * 输入: RAM寄存器地址 ，读取数据存储指针 * 输出: 无 * 返回值: 1:读正常; 非1值:从机无应答 * 备注: uint8_t tempState = 0;状态值 uint8_t tempAddr = 0; 地址计算变量 **********************************************************************************/ uint8_t Read_FM31256RAM( uint16_t uiAddr , uint8_t *ucDataPtr ) { uint8_t tempState = 0; uint8_t tempAddr = 0; //启动 if( RTC_START() != RTC_READY ) { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //输出地址 tempAddr = ( uiAddr >> 8 ) & 0xff;//addr_h tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } tempAddr = uiAddr & 0xff;//addr_l tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //启动 if( RTC_START() != RTC_READY ) { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_READ ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } *ucDataPtr = RTC_ReceiveByte(); RTC_STOP(); return 1; } /********************************************************************************* * Function: Read_Multi31256RAM * Object: 连续读出RAM寄存器 * 输入: RAM寄存器地址 * 输出: 无 * 返回值: 1:读正常; 非1值:从机无应答 * 备注: uint8_t tempState = 0;状态值 uint8_t tempAddr = 0; 地址计算变量 **********************************************************************************/ uint8_t Read_Multi31256RAM( uint16_t uiAddr, uint8_t *ucDataBufPtr, uint16_t uiLen ) { uint8_t tempState = 0; uint8_t tempAddr = 0; uint8_t iN = 0; //判断地址是否越界 if( ( uiAddr + uiLen ) > MAX_31256RAM_ADDRESS ) { return( 3 ); } RTC_SendNACK(); //不发送应答 RTC_STOP(); //发送终止I2C标志 if( RTC_START() != RTC_READY ) //启动 { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //输出地址 tempAddr = ( uiAddr >> 8 ) & 0xff;//addr_h tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } tempAddr = uiAddr & 0xff;//addr_l tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //启动 if( RTC_START() != RTC_READY ) { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_READ ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } for( iN = 0; iN < ( uiLen - 1 ); iN++ ) { *( ucDataBufPtr+iN ) = RTC_ReceiveByte(); //读数据 RTC_SendACK(); //发送应答 } *( ucDataBufPtr + iN )=RTC_ReceiveByte(); //读数据 RTC_SendNACK(); //最后一个字节不发送应答 RTC_STOP(); return 1; } /********************************************************************************* * Function: Write_FM31256RAM * Object: 单个写入RAM寄存器 * 输入: RAM寄存器地址 * 输出: 无 * 返回值: 1:读正常; 非1值:从机无应答 * 备注: uint8_t tempState = 0;状态值 uint8_t tempAddr = 0; 地址计算变量 **********************************************************************************/ uint8_t Write_FM31256RAM( uint16_t uiAddr , uint8_t ucData ) { uint8_t tempState = 0; uint8_t tempAddr = 0; //启动 if( RTC_START() != RTC_READY ) { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //输出地址 tempAddr = ( uiAddr >> 8 ) & 0xff;//addr_h tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } tempAddr = uiAddr & 0xff;//addr_l tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //写入单个数据 tempState = RTC_SendByte( ucData ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } RTC_STOP(); return 1; } /********************************************************************************* * Function: Write_Multi31256RAM * Object: 连续写入RAM寄存器 * 输入: RAM寄存器地址 * 输出: 无 * 返回值: 1:读正常; 非1值:从机无应答 * 备注: uint8_t tempState = 0;状态值 uint8_t tempAddr = 0; 地址计算变量 **********************************************************************************/ uint8_t Write_Multi31256RAM( uint16_t uiAddr , uint8_t *ucDataBufPtr , uint16_t uiLen ) { uint8_t tempState = 0; uint8_t tempAddr = 0; uint8_t iN = 0; //判断地址是否越界 if( ( uiAddr + uiLen ) > MAX_31256RAM_ADDRESS ) { return( 3 ); } RTC_SendNACK(); //不发送应答 RTC_STOP(); //发送终止I2C标志 if( RTC_START() != RTC_READY ) //启动 { return 0; } //从机地址写入 tempState = RTC_SendByte( Const_RAM_ADDR + Const_IIC_WRITE ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //输出地址 tempAddr = ( uiAddr >> 8 ) & 0xff;//addr_h tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } tempAddr = uiAddr & 0xff;//addr_l tempState = RTC_SendByte( tempAddr ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } //连续写入数据 for( iN = 0 ; iN < uiLen; iN++ ) { tempState = RTC_SendByte( *( ucDataBufPtr + iN ) ); if( 1 != tempState ) { RTC_STOP(); //发送终止I2C标志 return( tempState ); } } RTC_STOP(); //发送终止I2C标志 return(1); } /********************************************************************************* * Function: InitRtc * Object: FM31256初始化 * 输入: 无 * 输出: 无 * 备注: 可初始化时间及工作电压 **********************************************************************************/ void InitRtc(void) { Write_Reg(Const_CONTROL,0); //Write_Reg(0,2);//?? Write_Reg(Const_YEAR,hex_to_bcd(13)); Write_Reg(Const_MONTH,hex_to_bcd(8)); Write_Reg(Const_DATE,hex_to_bcd(26)); Write_Reg(Const_WEEK,hex_to_bcd(3)); Write_Reg(Const_HOURS,hex_to_bcd(13)); Write_Reg(Const_MINUTES,hex_to_bcd(13)); Write_Reg(Const_SECONDS,hex_to_bcd(15)); //Write_Reg(0,0);//???? //Write_Reg(1,0); //Write_Reg(Const_COMPANION,1);//无保护、充电（7）无充电（3）、复位电压4.4V } /********************************************************************************* * Function: GetCurDateTimeFromRTC * Object: 获取当前时间 * 输入: 无 * 输出: 无 * 备注: uint8_t ucTimeBuf[8]; uint8_t ucTempTime = 0; 读取时间计算变量 **********************************************************************************/ void GetCurDateTimeFromRTC( void ) { uint8_t ucTimeBuf[8]; uint8_t ucTempTime = 0; RTC_STOP(); //Write_Reg(0,1); // Read_Reg(Const_SECONDS,&ucTimeBuf[0]); Read_Reg(Const_MINUTES,&ucTimeBuf[1]); Read_Reg(Const_HOURS,&ucTimeBuf[2]); // Read_Reg(Const_WEEK,&ucTimeBuf[3]); Read_Reg(Const_DATE,&ucTimeBuf[4]);//Const_DAY Read_Reg(Const_MONTH,&ucTimeBuf[5]); Read_Reg(Const_YEAR,&ucTimeBuf[6]); //Write_Reg(0,0); ucTempTime = bcd_to_hex(ucTimeBuf[6]); if( ucTempTime >= 15 && ucTempTime <= 99 ) { displayTimeBuf.year = ucTempTime + 2000; } ucTempTime = (bcd_to_hex(ucTimeBuf[5]) & 0x1f); if( ucTempTime >= 1 && ucTempTime <= 12 ) { displayTimeBuf.month = ucTempTime; } ucTempTime = (bcd_to_hex(ucTimeBuf[4]) & 0x3f); if( ucTempTime >= 1 && ucTempTime <= 31 ) { displayTimeBuf.date = ucTempTime; } ucTempTime = ( bcd_to_hex(ucTimeBuf[2]) & 0x3f); if( ucTempTime <= 23 ) { displayTimeBuf.hour = ucTempTime; } ucTempTime = (bcd_to_hex(ucTimeBuf[1])& 0x7f); if( ucTempTime <= 59 ) { displayTimeBuf.minute = ucTempTime; } ucTempTime = (bcd_to_hex(ucTimeBuf[0]) & 0x7f); if( ucTempTime <= 59 ) { displayTimeBuf.seconds = ucTempTime; } } /********************************************************************************* * Function: SetDateTimeToRTC * Object: 向FM31256设置时间 * 输入: 无 * 输出: 无 * 备注: 根据displayTimeBuf结构体的数据向FM31256设置时间 **********************************************************************************/ void SetDateTimeToRTC( void ) { if( displayTimeBuf.year < 2021 ) { displayTimeBuf.year = 2021; } /* Write_Reg(0,0); Write_Reg(0,2);//使能*/ Write_Reg(Const_CONTROL,0); //Write_Reg(0,2);//使能*/ Write_Reg(Const_YEAR,hex_to_bcd(displayTimeBuf.year - 2000)); Write_Reg(Const_MONTH,(hex_to_bcd(displayTimeBuf.month) & 0x1f)); Write_Reg(Const_DATE,(hex_to_bcd(displayTimeBuf.date) & 0x3f)); Write_Reg(Const_HOURS,(hex_to_bcd(displayTimeBuf.hour) & 0x3f)); Write_Reg(Const_MINUTES,(hex_to_bcd(displayTimeBuf.minute) & 0x7f)); Write_Reg(Const_SECONDS,(hex_to_bcd(displayTimeBuf.seconds) & 0x7f)); //Write_Reg(0,0);//关闭读写 Write_Reg(Const_FLAGS,0); }