DA驱动程序 函数配置

//Data：2011-11月

//功能：DA驱动程序，函数配置
#include "main.h"
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDefGPIO_InitStructure;
u8 Rx_Buffer[128*2];
vu32 FLASH_ID = 0;
#defineM25P64_FLASH_ID0x202017
float AD_value;
//u16 colors[]={
//0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff ,0x7bef
//};



static vu32 TimingDelay = 0;
static vu32 LedShowStatus = 0;
static volatile ErrorStatus HSEStartUpStatus = SUCCESS;
voidADC_configuration();

int main(void)
{
RCC_Init();
ADC_configuration();
LCD_Display_Color(0xffe0);
LCD_SetBackColor(0xffe0);
LCD_SetTextColor(0x07e0);

while (1)
{
AD_value=ADC_GetConversionValue(ADC1);
AD_value=AD_value/4095.0*3.3;
AD_value=AD_value*1000.0;
Display_variate(60,16,AD_value);
}
}

void RCC_Init(void)
{
RCC_DeInit();

RCC_HSEConfig(RCC_HSE_ON);

HSEStartUpStatus = RCC_WaitForHSEStartUp();

if(HSEStartUpStatus == SUCCESS)
{

FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

FLASH_SetLatency(FLASH_Latency_2);


RCC_HCLKConfig(RCC_SYSCLK_Div1);


RCC_PCLK2Config(RCC_HCLK_Div1);


RCC_PCLK1Config(RCC_HCLK_Div2);


RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);


RCC_PLLCmd(ENABLE);


while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}


RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);


while(RCC_GetSYSCLKSource() != 0x08)
{
}
}

RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC
| RCC_APB2Periph_GPIOD| RCC_APB2Periph_AFIO, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 , ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);

RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM4, ENABLE);

SysTick_Config();

STM3210B_LCD_Init();


SPI_FLASH_Init();

FLASH_ID = SPI_FLASH_ReadID();

if(FLASH_ID == M25P64_FLASH_ID)
{

GPIO_WriteBit(GPIOC, GPIO_Pin_6, Bit_SET);
}
else
{

GPIO_WriteBit(GPIOC, GPIO_Pin_7, Bit_SET);
}
}

void SysTick_Config(void)
{

SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);


SysTick_SetReload(720000);


SysTick_ITConfig(ENABLE);
}

void Delay(u32 nCount)
{
TimingDelay = nCount;

SysTick_CounterCmd(SysTick_Counter_Enable);

while(TimingDelay != 0)
{
}

SysTick_CounterCmd(SysTick_Counter_Disable);

SysTick_CounterCmd(SysTick_Counter_Clear);
}

void Decrement_TimingDelay(void)
{
if (TimingDelay != 0x00)
{
TimingDelay--;
}
}
////////////AD的配置函数/////////////////////////////
voidADC_configuration()
{

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOC, &GPIO_InitStructure);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel=1;//指定用于转换的通道数
ADC_Init(ADC1, &ADC_InitStructure);

ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 1, ADC_SampleTime_55Cycles5);

ADC_Cmd(ADC1, ENABLE);

ADC_ResetCalibration(ADC1);

while(ADC_GetResetCalibrationStatus(ADC1));//等待ADC的校准寄存器被设置完毕

ADC_StartCalibration(ADC1);

while(ADC_GetCalibrationStatus(ADC1));

ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}