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#ifdef HSE_EXT
void ClkInit(void)
{
CLK_ICKR = 0X00; //禁止高速内部时钟，从停机(Halt) 或活跃停机(Active Halt) 模式快速唤醒禁止
CLK_ECKR |= 0X01; //使能外部时钟
while(!(CLK_ECKR & 0x02));
//看外部晶振是否启动
CLK_ECKR |= 0X01; //使能外部时钟
CLK_CKDIVR = 0Xf9; //外部12M HZ晶振作为CPU时钟
//入选24Mhz就在CLK_SWCR |= 0X02;出现问题
CLK_SWR = 0XB4; //主时钟选择为外部晶振
while(!(CLK_SWCR & 0x8));
CLK_SWCR |= 0X02; //时钟切换
CLK_PCKENR1 = 0Xaf; //使能fMASTER时钟与对应外设的连接(仅I2C和TIM2,and TIM1)还有UART1,uart3 spi
CLK_PCKENR2 = 0X00; //0X0C;
CLK_CSSR = 0X00; //时钟安全系统寄存器关
while((CLK_CCOR & 0x04)); //空闲才可以写CCOSEL
CLK_CCOR |= 0X0d; //使能CCO始终输出,6M
while(!(CLK_CCOR & 0x04)); //看CCO输出的时钟是否正在工作
while((CLK_CCOR & 0x02)); //等待可输出时钟可用
//CLK_HSITRIMR = 0X00-1; //HSI时钟修正寄存器,HSITRIM[3:0]：HSI修正值
}
#else
void ClkInit(void)
{
CLK_ICKR=0X01; //时能高速内部时钟，从停机(Halt) 或活跃停机(Active Halt) 模式快速唤醒使能
CLK_ECKR=0X00; //禁止外部时钟
CLK_SWR =0XE1; //选择16M内部时钟为主时钟
CLK_SWCR=0X00; //禁止时钟切换
CLK_CKDIVR=0X08; //8MHZ [4:3]01：fHSI = fHSI RC输出/2 , [2:0]000：fCPU = fMASTER
CLK_PCKENR1 = 0Xaf; //使能fMASTER时钟与对应外设的连接(仅I2C和TIM2,and TIM1)还有UART1,uart3 spi
CLK_PCKENR2 = 0X00; //0X0C;
CLK_CSSR=0X00; //时钟安全系统寄存器关
CLK_HSITRIMR=0X00-1; //HSI时钟修正寄存器,HSITRIM[3:0]：HSI修正值
}
#endif
/********外部中断****************/
void InterruptInit(void)
{
PD_DDR &=~(0X40); //PD6设置为按键输?
PD_CR1 |=0X40;
PD_CR2 &=~(0X40); //禁止外部中断
// PD_CR2 |=0X40; //使能外部中断
EXTI_CR1 |=0X80; //PD6下降沿出触发中断
// EXTI_CR1 |=0X40; //PD6上升沿出触发中断
}
/*****************串口收发******************/
void Uart3Init(void)
{
UART3_CR1 = 0x00;
UART3_CR2 = 0x00;
UART3_CR3 = 0x00; //1个停止位
UART3_BRR2 = 0x04; //24M的Fmaster下9600的波特率
UART3_BRR1 = 0x9c; //24000000/9600 = 0x09c4
UART3_CR2 = 0x2c; //发送接收都使能，使能接收中断
}
void Uart3SendChar(U8 *Send_Buff,U8 Cnt)
{
U8 i;
for(i=0;i
while(!(UART3_SR & 0x80));
UART3_DR=Send_Buff[i];
}
}
/***********定时器**************************/
void Timer1Init(void)
{
TIM1_CR1 |=0X04; //自动重载，只有溢出才产生更新中断
TIM1_IER |=0X01; //允许更新中断
// TIM2_SR1=0X00; //状态寄存器
TIM1_PSCR =0X01; //PSC[3:0]：预分频器的值 ,开预分频功能不许使能EGR中的UG位
// TIM1_PSCR =0X00; //PSC[3:0]：4预分频器的值
TIM2_EGR |=0X01; //时间产生状态寄存器,重新初始化计数器，并产生一个更新事件。
//如果不开预分频功能，此位可以删去
//TIM2_CCMR1=0X00; //捕获/比较模式寄存器,可用于选择PWM输出端口
//TIM2_CCMR1=0X68; //PWM模式，通道1，预装载使能
// TIM2_CCMR2=0X68; //PWM模式，通道2，预装载使能
// TIM2_CCER2=0X03; //使能PWM输出通道
// TIM2_CCER1=0X03; //使能PWM输出通道
TIM1_CNTRH=0X9C; //计数值
TIM1_CNTRL=0X40;
TIM1_ARRH=0X9C; //自动重载值(10ms进一次中断),8M2分频，40000/4000000=10ms
TIM1_ARRL=0X40;
TIM1_CR1 |=0X01; //开计数器
}
/************AWU唤醒********************/
void AWU_Open(void)
{
AWU_APR = 0X3E; //APPRdiV=64
AWU_TBR = 0X0D; //time interval = 2^11 *APPRdiV/Fls=2048*64/128KHZ=1S 0D=2S
// AWU_TBR = 0X0E; //time interval = 2^11 *APPRdiV/Fls=2048*64/128KHZ=1S 0E==大约5S
AWU_CSR = 0x30; //enable AWU,AWU_INT
CLK_ICKR |= 0X20; //1：活跃停机(Active Halt) 模式下主dian ya tiao jie qi guan bi
}
void AWU_Close(void)
{
AWU_APR = 0X3F; //APPRdiV
AWU_TBR = 0X00; //disable time interval
AWU_CSR = 0x00; //disable AWU
CLK_ICKR &= ~(0X20);
}
void EEPROM_Init(void)
{
FLASH_CR1 = 0x00;
FLASH_CR2 = 0x00;
FLASH_DUKR = MASS_KEY1;
FLASH_DUKR = MASS_KEY2; //密钥使能
while(!(FLASH_IAPSR&0x08)); /*等待写保护解锁*/
}
/***********EEPROM***************************/
u8 EEPROM_Write(u8 addr,u8 dat)
{
u16 TimeOut;
*((u8*)(addr + EEP_BASE)) = dat;
for( TimeOut = 0; TimeOut < 0xFFFF; TimeOut++ )
{
if( FLASH_IAPSR & ( WR_PG_DIS | EOP_BIT ))return 1; //编程完成或者写到了写保护区
}
return 0;
//超时退出
// while(!(FLASH_IAPSR&0x02)); /*等待写完成*/
}
u8 EEPROM_Read(u8 addr)
{
return *((u8*)(EEP_BASE + addr));
}
void EEPROM_THREE_BYTE_WRITE(void)
{
EEPROM_Write(0x00,i2c_buff[0]);
EEPROM_Write(0x01,i2c_buff[1]);
EEPROM_Write(0x02,i2c_buff[2]);
}
void EEPROM_THREE_BYTE_READ(void)
{
if(ADC_OnOff==1)
ADC_ON_OR_OFF=2;
else
ADC_ON_OR_OFF=EEPROM_Read(0x00);
ADC_OPEN_MIN=EEPROM_Read(0x01);
ADC_OPEN_TIME=EEPROM_Read(0x02);
}
/**************ADC***********************/
void adc_init(void)
{
ADC_CR1 |=0X00; //关闭ADC，2分频
ADC_CR2 |=0X08; //数据右对齐，low 8BIT AT ADC_DRL;非扫描模式
ADC_CSR =0X04; //选择通道4， 禁止中断
}
/********取走ADC转换yi个通道的数据**********/
u16 adc_converter(void)
{
u8 m;
for(m=0;m<30;m++); //等待上电完成
ADC_CR1 |=0X1; //启动转换
while(!(ADC_CSR&0x80)); //等待转换结束 14个时钟周期
ADC_CSR &= 0X7F; //清除中断标志
return ADC_DR;
}
/****************I2C**************************/
void I2C_init(void)
{
I2C_CCRH = 0x00; //标准I2C接口
//I2C_CCRL = 80 ;
//I2C_FREQR = 0x10; //输入外设时钟频率为2MHz
I2C_CR1 = 0x00; //禁止I2C外设
I2C_FREQR = 8; // 8MHZ //经测试主芯片时钟至少》8Mhz才能正常收到数据
I2C_OARL = SLAVE_ADDRESS; //
I2C_OARH = 0x40; // 七位
//I2C_OARH = 0xC0 | ((SLAVE_ADDRESS & 0x300) >> 7); // 十位
I2C_CR1 = 0x01; //开I2C
I2C_CR2 |= 0x04; //只产生应答信号，不产生起始和停止位
I2C_ITR = 0x07; //使能中断
}
void spi_init(void)
{
SPI_CR2 = 0X01;
SPI_CR1 = 0X44; //8MHZ 主模式
PB_DDR |= 1 << 5; //SCK
PB_CR1 |= 1 << 5; //output
PB_DDR |= 1 << 6; //MOSI
PB_CR1 |= 1 << 6; //output
PB_DDR &= ~(1 << 7); //MISO
PB_CR1 |= 1 << 7; //in put with pull-up
CLK_PCKENR1 |= 0x10;
SPI1_CR1 = 0x04;
SPI1_CR2 = 0x03;
SPI1_CRCPR = 0x07;
SPI1_ICR = 0x00;
SPI1_CR1 |= 0x40;
}
/*************SPI**************************/
UINT8 SPI_RW(UINT8 byte)
{
unsigned char data;
//while(SPI1_SR&0x80); //Busy flag
while(!SPI1_SR&0x02);
SPI1_DR = byte;
while(!SPI1_SR&0x01);
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
data = SPI1_DR;
return(data);
}
/****************按键*************************/
extern u16 keyvalue;
u8 f_keytime;
//extern u8 KeyRestFlag;
u16 u16Timer1Cnt;
void keyscan(void)
{
static u16 f_key_state=0;
u8 key_up_flag=0;
static u16 keyoldbuf=0;
static u16 keyinbuf=0,keychkbuf=0,keycvtbuf=0;
if(f_keytime==1)
{
f_keytime=0;
key_up_flag=PC_IDR&0x10;
if(key_up_flag==0x00) //
{
if(u16Timer1Cnt>=KeyInContinue1S)
{
// KeyRestFlag=0;
u16Timer1Cnt=0;
keyinbuf=KeyRst;
}
}
else
{
// KeyRestFlag=0;
keyinbuf=0;
u16Timer1Cnt=0;
}
if(keyinbuf==keychkbuf)
{
if(f_key_state)
{
keycvtbuf=keychkbuf;
f_key_state=0;
}
}
else
{
keychkbuf=keyinbuf;
f_key_state=1;
}
}
if(keycvtbuf!=keyoldbuf)
{
keyvalue=keycvtbuf&(~keyoldbuf);
keyoldbuf=keycvtbuf;
}
/*****
if(keycvtbuf!=keyoldbuf) //按键按下
{
// keyvalue|=keycvtbuf&(~keyoldbuf);
keymediavalue=keycvtbuf&(~keyoldbuf);
// keyoldbuf=keycvtbuf;
key_up_flag=1;
// return keyvalue;
}
if(key_up_flag==1) //按键抬起
if(keycvtbuf==keyoldbuf)
{
key_up_flag=0;
keyvalue=keymediavalue;
}
}
// return 0;
****/
}
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