[STM32L0] 关于STM32L052采样AD问题

//stm32内部AD采样程序。运行通过的请大家放心使用。

//有缺陷的地方请大家多多指教。本人才刚刚起步，还有劳各位大侠带一把呀！



/* Includes ------------------------------------------------------------------*/

#include "stm32f10x_lib.h"

#include"stdio.h"





/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

#define ADC1_DR_Address ((u32)0x4001244C)

int AD_value;





/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

ADC_InitTypeDef ADC_InitStructure;



vu16 ADC_ConvertedValue;

ErrorStatus HSEStartUpStatus;



/* Private function prototypes -----------------------------------------------*/

void RCC_Configuration(void);

void GPIO_Configuration(void);



void SysTick_Configuration(void);



void SetupClock (void);





#define LED1ON GPIO_SetBits(GPIOF,GPIO_Pin_0)

#define LED1OFF GPIO_ResetBits(GPIOF,GPIO_Pin_0) //片选cs



#define LED2ON GPIO_SetBits(GPIOF,GPIO_Pin_1)

#define LED2OFF GPIO_ResetBits(GPIOF,GPIO_Pin_1)//复位rest

#define LED3ON GPIO_SetBits(GPIOF,GPIO_Pin_2)

#define LED3OFF GPIO_ResetBits(GPIOF,GPIO_Pin_2)//数据sdata

#define LED4ON GPIO_SetBits(GPIOF,GPIO_Pin_3)

#define LED4OFF GPIO_ResetBits(GPIOF,GPIO_Pin_3)//时钟sclk





unsigned char Ver='A'; //驱动版本，默认为A版本,一共4个版本

void delayms(unsigned int ii)//1ms延时函数

{



unsigned int i,x;

for (x=0;x<ii;x++)

{

for (i=0;i<100;i++);

}

}



void send(unsigned char value, unsigned char cd) //写8位数据

{

unsigned char i,dt;

LED1OFF;

LED4OFF;

if(cd == 0)

LED3OFF;

else

LED3ON;

LED4ON;



dt=value;

for(i=0;i<8;i++)

{

LED4OFF;

if(dt&0x80)

LED3ON;

else

LED3OFF;

dt=dt<<1;

LED4ON;

}

LED1ON;//cs=1;

}

void readdata() //读数据

{

unsigned char i,j;

unsigned char ch[6];

send(0x09, 0); // 读数据

LED1OFF;//cs=0;

LED4OFF;//sclk=0;

for (i=0;i<6;i++)

{

ch[i]=0;

for (j=0;j<8;j++)

{



LED4ON;//sclk=1;

if (!(GPIO_ReadOutputDataBit(GPIOF,GPIO_Pin_2)))//sdata==0)

{

ch[i]=ch[i]|(1<<(7-j));

}

LED4OFF;//sclk=0;

}

}



switch(ch[0])

{

case 255:

Ver='A';

break;

case 127:

Ver='B';

break;

case 0:

if(ch[1]+ch[2]+ch[3]==0)

{

Ver='D';

}else

{

Ver='C';

}

break;

}

LED1ON;//cs=1;

}



void LCD_Initialize() //LCD初始化

{

unsigned char i;

LED2ON;//rest=1;

LED1ON;//cs=1;

LED3OFF;//sdata=0;

LED4ON;//sclk=1;

LED2OFF;//rest=0;

delayms(50);

LED2ON;//rest=1;

delayms(50);



send(0x00, 0); // NOP

delayms(5);



send(0x01, 0); // LCD Software Reset

delayms(5);



send(0xC6, 0); // Initial Escape



send(0xB9, 0); // Refresh set

send(0x00, 1);



readdata(); //读出数据



send(0xB5, 0); // Gamma Curve Set

send(0x01, 1);



send(0xbd, 0); //common driver output select//很重要的

if(Ver=='D')

{

send(0x04, 1);

}else

{

send(0x00, 1);

}



send(0xBE, 0); // Power Control

send(0x03, 1);





send(0x11, 0); // Sleep out



send(0xBA, 0); // Power Control

send(0x7F, 1);

send(0x03, 1);



send(0x36, 0); // 扫描方式

if (Ver=='A')

{

send(0x00|0x08,1); //RGB

}

else

{

send(0x00,1); //RGB

}



send(0xB7, 0); // Temperature gradient set

for(i=0; i<14; i++)

{

send(0, 1);

}





send(0x29, 0); //display ON



send(0x03, 0); // Booster Voltage ON



delayms(20); // Booster Voltage stabilisieren lassen



send(0x20, 0); //display inversion OFF



send(0x25, 0); // Write contrast

switch(Ver) //对比度设置

{

case 'A':

send(70, 1); //对比度设置

break;

case 'B':

send(67, 1); //对比度设置

break;

case 'C':

//send(74, 1);

send(66, 1);

// send(64, 1); //对比度设置

break;

case 'D': //对比度设置

send(39, 1);

break;



}



}



//************************

//颜色模式设置:color=1为4096色模式

// :color=0为256色模式

//************************

void LCD_ColorSet(unsigned char Color)

{



if (Color==1) {

send(0x3a, 0); //interface pixel format

send(0x03, 1); //0x03 为4096色，0x02为256色



}

else

{

send(0x3a, 0); //interface pixel format

send(0x02, 1); //0x03 为4096色，0x02为256色







send(0x2d, 0); //调色板设置

if (Ver=='B'||Ver=='C')

{

//red

send(~0x00, 1);

send(~0x02, 1);

send(~0x03, 1);

send(~0x04, 1);

send(~0x05, 1);

send(~0x06, 1);

send(~0x08, 1);

send(~0x0f, 1);



//green

send(~0x00, 1);

send(~0x02, 1);

send(~0x03, 1);

send(~0x04, 1);

send(~0x05, 1);

send(~0x06, 1);

send(~0x08, 1);

send(~0x0f, 1);

//blue

send(~0x00, 1);

send(~0x03, 1);

send(~0x06, 1);

send(~0x0f, 1);

}else

{

//red

send(0x00, 1);

send(0x02, 1);

send(0x03, 1);

send(0x04, 1);

send(0x05, 1);

send(0x06, 1);

send(0x08, 1);

send(0x0f, 1);



//green

send(0x00, 1);

send(0x02, 1);

send(0x03, 1);

send(0x04, 1);

send(0x05, 1);

send(0x06, 1);

send(0x08, 1);

send(0x0f, 1);

//blue

send(0x00, 1);

send(0x03, 1);

send(0x06, 1);

send(0x0f, 1);

}





}

}

void addset(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2) //坐标设置 4个参数依次为开始X,开始Y,结束x,结束Y

{

send(0x2a,0 );//column address set

send(x1,1 );

send(x2,1 );

send(0x2B,0 );//page address set

send(y1,1 );

send(y2,1 );

send(0x2C,0 );//memory write

}

//************************

//清屏:color=1为4096色模式清屏

// :color=0为256色模式清屏

//************************

void LCD_Clear(unsigned int value,unsigned char Color)

{

unsigned char x, y;

addset(0,0,97,66);

if (Color==1)

{

for(y = 0; y < 67; y ++)

{

for(x = 0; x < 49;x ++)

{ send(value>>4,1);

send(((value&0x0f)<<4)|(value>>8),1);

send(value,1);

}

}

}

else

{

for(y = 0; y < 67; y ++)

{

for(x = 0; x < 98; x ++)

{

send(value,1);

}

}

}

}

//在指定位置显示一个字符(8*12大小)

//dcolor为内容颜色，gbcolor为背静颜色

void showdian(unsigned char x,unsigned char y,unsigned char dcolor,unsigned char bgcolor)

{





addset(x,y,x+1,y+1); //设置区域











send(dcolor,1);





send(bgcolor,1);





}

int main(void)

{

//int i,j;

#ifdef DEBUG

debug();

#endif



/* System clocks configuration ---------------------------------------------*/

RCC_Configuration();

SysTick_Configuration();



/* GPIO configuration ------------------------------------------------------*/

GPIO_Configuration();







//printf("\r\n USART1 print AD_value -------------------------- \r\n");



/* DMA channel1 configuration ----------------------------------------------*/

/*DMA_DeInit(DMA1_Channel1);

DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;

DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue;

DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;

DMA_InitStructure.DMA_BufferSize = 1;

DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;

DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;

DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;

DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;

DMA_InitStructure.DMA_Priority = DMA_Priority_High;

DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;

DMA_Init(DMA1_Channel1, &DMA_InitStructure);



// Enable DMA channel1

DMA_Cmd(DMA1_Channel1, ENABLE);

*/



/* ADC1 configuration ------------------------------------------------------*/

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;

ADC_Init(ADC1, &ADC_InitStructure);



/* ADC1 regular channel13 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 1, ADC_SampleTime_239Cycles5);



/* Enable ADC1 DMA */

ADC_DMACmd(ADC1, ENABLE);



/* Enable ADC1 */

ADC_Cmd(ADC1, ENABLE);



/* Enable ADC1 reset calibaration register */

ADC_ResetCalibration(ADC1);

/* Check the end of ADC1 reset calibration register */

while(ADC_GetResetCalibrationStatus(ADC1));



/* Start ADC1 calibaration */

ADC_StartCalibration(ADC1);

/* Check the end of ADC1 calibration */

while(ADC_GetCalibrationStatus(ADC1));



/* Start ADC1 Software Conversion */

ADC_SoftwareStartConvCmd(ADC1, ENABLE);





LCD_Initialize() ;

LCD_ColorSet(0); //0为256色模式,1为4096色模式

LCD_Clear(255,0); //清屏

addset(0,0,103,81); //设置起止坐标,4个参数依次为开始X,开始Y,结束x,结束Y

while(1)

{

AD_value=ADC_GetConversionValue(ADC1);





}

/*{

for(i=0;i<100;i++)

{for(j=0;j<20;j++)

{

AD_value=ADC_GetConversionValue(ADC1);

// Printf message with AD value to serial port every 1 second

showdian(i,65-AD_value/63 ,0x03,255);

delayms(100);

}

}

LCD_Clear(255,0); //清屏

addset(0,0,103,81);

}*/





}

/*******************************************************************************

* Function Name : RCC_Configuration

* Description : Configures the different system clocks.

* Input : None

* Output : None

* Return : None

*******************************************************************************/

void RCC_Configuration(void)



{ /* RCC system reset(for debug purpose) */

RCC_DeInit();



/* Enable HSE */

RCC_HSEConfig(RCC_HSE_ON);



/* Wait till HSE is ready */

HSEStartUpStatus = RCC_WaitForHSEStartUp();



if(HSEStartUpStatus == SUCCESS)

{

/* HCLK = SYSCLK */

RCC_HCLKConfig(RCC_SYSCLK_Div1);



/* PCLK2 = HCLK */

RCC_PCLK2Config(RCC_HCLK_Div1);



/* PCLK1 = HCLK/2 */

RCC_PCLK1Config(RCC_HCLK_Div2);



/* ADCCLK = PCLK2/4 */

RCC_ADCCLKConfig(RCC_PCLK2_Div8);



/* Flash 2 wait state */

FLASH_SetLatency(FLASH_Latency_2);

/* Enable Prefetch Buffer */

FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);



/* PLLCLK = 8MHz * 9 = 56 MHz */

RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);



/* Enable PLL */

RCC_PLLCmd(ENABLE);



/* Wait till PLL is ready */

while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)

{

}



/* Select PLL as system clock source */

RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);



/* Wait till PLL is used as system clock source */

while(RCC_GetSYSCLKSource() != 0x08)

{

}

}



/* Enable peripheral clocks --------------------------------------------------*/

/* Enable DMA clock */

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);



/* Enable ADC1 and GPIOC clock */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOC, ENABLE);



/* Enable USART1 and GPIOA clock */

//RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOA| RCC_APB2Periph_GPIOC|

RCC_APB2Periph_AFIO, ENABLE);





}

void SysTick_Configuration(void)

{

/* Select AHB clock(HCLK) as SysTick clock source */

SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);



/* Set SysTick Priority to 3 */

NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 3, 0);



/* SysTick interrupt each 1ms with HCLK equal to 72MHz */

SysTick_SetReload(72000);



/* Enable the SysTick Interrupt */

SysTick_ITConfig(ENABLE);

}

/*******************************************************************************

* Function Name : GPIO_Configuration

* Description : Configures the different GPIO ports.

* Input : None

* Output : None

* Return : None

*******************************************************************************/

void GPIO_Configuration(void)

{

GPIO_InitTypeDef GPIO_InitStructure;



/* Configure PC.03 (ADC Channel13) as analog input -------------------------*/

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

GPIO_Init(GPIOC, &GPIO_InitStructure);



// Configure PF. as Output push-pull

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

GPIO_Init(GPIOF, &GPIO_InitStructure);

}







#ifdef DEBUG

/*******************************************************************************

* Function Name : assert_failed

* Description : Reports the name of the source file and the source line number

* where the assert error has occurred.

* Input : - file: pointer to the source file name

* - line: assert error line source number

* Output : None

* Return : None

*******************************************************************************/

void assert_failed(u8* file, u32 line)

{

/* User can add his own implementation to report the file name and line number,

ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */



/* Infinite loop */

while (1)

{

}

}

#endif





/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/