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大侠帮助看看下面的程序，哪里有问题？OLED屏能显示AD转换值，每次都是下载后的固定值，不能实时变化？
***********************
main.c
*************************
#include "REG51.h"
#include "oled.h"
#include "ADC.h"
int main(void)
{
u8 i;
delay_ms(200);
OLED_Init();
delay_ms(1000);
OLED_Display_Off();
delay_ms(1000);
OLED_Clear() ;
OLED_Display_On();
delay_ms(1000);
while(1)
{
OLED_Clear();
ADC () ;
OLED_ShowChineseFont(0,2,4);
OLED_ShowChineseFont(16,2,12);
OLED_ShowChineseFont(32,2,8);
OLED_ShowChineseFont(48,2,9);
OLED_ShowChar(64,2,':',16);
OLED_ShowNum(80,2,AD_Dat,1,16);
OLED_ShowChar(88,2,'.',16);
OLED_ShowNum(95,2,AD_Dat%10,1,16);
OLED_ShowNum(104,2,AD_Dat%100,1,16);
delay500ms();
}
}
*******************
OLED.C
*****************
/* -------------------------------------------------------------------------- */
/******************************************************************************/
#include "oled.h"
#include "font.h"
#include "chinesefont.h"
//OLEDμÄÏÔ′æ
//′æ·Å¸ñê½èçÏÂ.
//[0]0 1 2 3 ... 127
//[1]0 1 2 3 ... 127
//[2]0 1 2 3 ... 127
//[3]0 1 2 3 ... 127
//[4]0 1 2 3 ... 127
//[5]0 1 2 3 ... 127
//[6]0 1 2 3 ... 127
//[7]0 1 2 3 ... 127
void delay_ms(unsigned int ms)
{
unsigned int a;
while(ms)
{
a=1800;
while(a--);
ms--;
}
return;
}
/**********************************************
//IIC ¿aê¼
**********************************************/
void IIC_Start()
{
OLED_SCLK_Set() ;
OLED_SDIN_Set();
OLED_SDIN_Clr();
OLED_SCLK_Clr();
}
/**********************************************
//IIC ½áêø
**********************************************/
void IIC_Stop()
{
OLED_SCLK_Set() ;
// OLED_SCLK_Clr();
OLED_SDIN_Clr();
OLED_SDIN_Set();
}
/**********************************************
// IICó|′e
**********************************************/
void IIC_Wait_Ack()
{
// OLED_SDA = 1;
// delay_us(1);
//OLED_SCL = 1;
//delay_us(50000);
OLED_SCLK_Set() ;
OLED_SCLK_Clr();
}
/**********************************************
// IIC D′×Ö½ú
**********************************************/
void Write_IIC_Byte(u8 IIC_Byte)
{
unsigned char i;
unsigned char m,da;
da=IIC_Byte;
OLED_SCLK_Clr();
for(i=0;i<8;i++)
{
m=da;
// OLED_SCLK_Clr();
m=m&0x80;
if(m==0x80)
{OLED_SDIN_Set();}
else OLED_SDIN_Clr();
da=da<<1;
OLED_SCLK_Set();
OLED_SCLK_Clr();
}
}
/**********************************************
// IIC D′Ãüáî
**********************************************/
void Write_IIC_Command(u8 IIC_Command)
{
IIC_Start();
Write_IIC_Byte(0x78); //Slave address,SA0=0￡¨′ó»úμØÖ·￡¬SA0=0￡©
IIC_Wait_Ack();
Write_IIC_Byte(0x00); //write command￡¨D′Ãüáî￡©
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Command);
IIC_Wait_Ack();
IIC_Stop();
}
/**********************************************
// IIC D′êy¾Y
**********************************************/
void Write_IIC_Data(u8 IIC_Data)
{
IIC_Start();
Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
IIC_Wait_Ack();
Write_IIC_Byte(0x40); //write data
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Data);
IIC_Wait_Ack();
IIC_Stop();
}
/********************************************
//ÏòSSD1306D′èëò»¸ö×Ö½ú¡￡
// OLED D′êy¾Y»òÃüáî
// dat:òaD′èëμÄêy¾Y/Ãüáî
// cmd == 1 D′êy¾Y
// cmd == 0 D′Ãüáî
********************************************/
void OLED_WR_Byte(u8 dat,u8 cmd)
{
if(cmd)
{
Write_IIC_Data(dat); //D′êy¾Y
}
else
{
Write_IIC_Command(dat); //D′Ãüáî
}
}
///********************************************
//// fill_Picture
//********************************************/
//void fill_picture(u8 fill_Data)
//{
// unsigned char m,n;
// for(m=0;m<8;m++)
// {
// OLED_WR_Byte(0xb0+m,OLED_CMD); //page0-page1
// OLED_WR_Byte(0x00,OLED_CMD); //low column start address
// OLED_WR_Byte(0x10,OLED_CMD); //high column start address
// for(n=0;n<128;n++)
// {
// OLED_WR_Byte(fill_Data,1);
// }
// }
//}
/***********************Delay****************************************/
/*
void Delay_50ms(u16 Del_50ms)
{
unsigned int m;
for(;Del_50ms>0;Del_50ms--)
for(m=6245;m>0;m--);
}
void Delay_1ms(u16 Del_1ms)
{
unsigned char j;
while(Del_1ms--)
{
for(j=0;j<123;j++);
}
}
*/
/*******************************************************************/
/********************************************
// ×ø±êéèÖÃ
// x = 0 ~ 127
// y = 0 ~ 7
// ×Öìå′óD¡Îa16μÄoo×Ö￡o x = 0 ~ 112 y = 0 ~ 6
// ×Öìå′óD¡Îa16μÄ×Ö·û￡o x = 0 ~ 120 y = 0 ~ 6
// ×Öìå′óD¡Îa12μÄ×Ö·û￡o x = 0 ~ 122 y = 0 ~ 7
oˉêyÃû3Æ: OLED_Set_Pos
oˉêy1|Äü: éèÖÃÏÔê¾×ø±ê
oˉêy½ééü: éèÖÃÏÔê¾×ø±êoˉêy
êäèë2Îêy: x:ÏÔê¾x×ø±ê;y:ÏÔê¾y×ø±ê¡￡
·μ»ØÖμ: Îå
********************************************/
void OLED_Set_Pos(u8 x, u8 y)
{
OLED_WR_Byte(0xb0+y,OLED_CMD);
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f),OLED_CMD);
}
/********************************************
//¿aÆôOLEDÏÔê¾
********************************************/
void OLED_Display_On(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDCÃüáî
OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
}
/********************************************
//1رÕOLEDÏÔê¾
********************************************/
void OLED_Display_Off(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDCÃüáî
OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
}
/********************************************
//ÇåÆáoˉêy,ÇåíêÆá,Õû¸öÆáÄ»êÇoúé«μÄ!oíûμãááò»Ñù!!!
********************************************/
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WR_Byte (0xb0+i,OLED_CMD); //éèÖÃò3μØÖ·￡¨0~7￡©
OLED_WR_Byte (0x00,OLED_CMD); //éèÖÃÏÔê¾Î»ÖáaáDμíμØÖ·
OLED_WR_Byte (0x10,OLED_CMD); //éèÖÃÏÔê¾Î»ÖáaáD¸ßμØÖ·
for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
} //¸üDÂÏÔê¾
}
/**********************************************
// ÏÔê¾¼¸ìõoáÏß
**********************************************/
//void OLED_ShowLine(void)
//{
//u8 i,n;
//for(i=0;i<8;i++)
//{
// OLED_WR_Byte (0xb0+i,OLED_CMD); //éèÖÃò3μØÖ·￡¨0~7￡©
// OLED_WR_Byte (0x00,OLED_CMD); //éèÖÃÏÔê¾Î»ÖáaáDμíμØÖ·
// OLED_WR_Byte (0x10,OLED_CMD); //éèÖÃÏÔê¾Î»ÖáaáD¸ßμØÖ·
// for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);
//} //¸üDÂÏÔê¾
//}
/**********************************************
//ÔúÖ¸¶¨Î»ÖÃÏÔê¾ò»¸ö×Ö·û,°üà¨2¿·Ö×Ö·û
// x = 0 ~ 127
// y = 0 ~ 7
// ×Öìå′óD¡Îa16μÄ×Ö·û￡o x = 0 ~ 120 y = 0 ~ 6
// ×Öìå′óD¡Îa12μÄ×Ö·û￡o x = 0 ~ 122 y = 0 ~ 7
// Char_Size:Ñ¡Ôñ×Öìå 16/12 ￡¬Ö»óDÕaá½ÖÖ
**********************************************/
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{
unsigned char c=0,i=0;
c=chr-' ';//μÃμ½Æ«òÆoóμÄÖμ
if(x>128-1){x=0;y=y+2;}
if(Char_Size ==16)
{
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);//D′êy¾Y
OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);//D′êy¾Y
}
else if(Char_Size ==12)
{
OLED_Set_Pos(x,y);
for(i=0;i<6;i++)
OLED_WR_Byte(F6x8[c*6+i],OLED_DATA); //D′êy¾Y
}
}
/**********************************************
//m^noˉêy
oˉêyÃû3Æ: OLED_Pow
oˉêy1|Äü: ÇóÃY
oˉêy½ééü: ÇóÃYoˉêy
êäèë2Îêy￡om:′ø¼ÆËãêy¾Y;n:n′ÎÃY
·μ»ØÖμ:
**********************************************/
u32 oled_pow(u8 m,u8 n)
{
u32 result=1;
while(n--)result*=m;
return result;
}
/**********************************************
// ÏÔê¾ÕûDíêy×Ö
// x = 0 ~ 127
// y = 0 ~ 7
// numSize:Ñ¡Ôñ×Öìå 16/12 ￡¬Ö»óDÕaá½ÖÖ
// ×Öìå′óD¡Îa16μÄ×Ö·û￡o x = 0 ~ 120 y = 0 ~ 6
// ×Öìå′óD¡Îa12μÄ×Ö·û￡o x = 0 ~ 122 y = 0 ~ 7
// num:êyÖμ(0~4294967295);
**********************************************/
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 numSize)
{
u8 t,temp;
u8 enshow=0;
for(t=0;t<len;t++)
{
temp=(num/oled_pow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
OLED_ShowChar(x+(numSize/2)*t,y,' ',numSize);
continue;
}else enshow=1;
}
OLED_ShowChar(x+(numSize/2)*t,y,temp+'0',numSize);
}
}
/**********************************************
//ÏÔê¾ò»¸ö×Ö·ûoÅ′®
// x = 0 ~ 127
// y = 0 ~ 7
// Char_Size:Ñ¡Ôñ×Öìå 16/12 ￡¬Ö»óDÕaá½ÖÖ
// ×Öìå′óD¡Îa16μÄ×Ö·û￡o x = 0 ~ 120 y = 0 ~ 6
// ×Öìå′óD¡Îa12μÄ×Ö·û￡o x = 0 ~ 122 y = 0 ~ 7
**********************************************/
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
{
unsigned char j=0;
while (chr[j]!='\0')
{ OLED_ShowChar(x,y,chr[j],Char_Size);
x+=Char_Size/2;
//OLED_ShowChar(x,y,chr[j]);
//x+=8;
if(x>120){x=0;y+=2;}
j++;
}
}
/**********************************************
//ÏÔê¾oo×Ö￡¬oo×ÖêÇéè¼ÆoÃμÄ￡¬′æÔú FONT.H Îļt ChineseFontLib[][32]
// x = 0 ~ 112
// y = 0 ~ 6
// oo×Ö×Öìå¿í¶èÎa 16
**********************************************/
void OLED_ShowChineseFont(u8 x,u8 y,u8 no)
{
u8 t,adder=0;
OLED_Set_Pos(x,y);
for(t=0;t<16;t++)
{
OLED_WR_Byte(ChineseFontLib[2*no][t],OLED_DATA);
adder+=1;
}
OLED_Set_Pos(x,y+1);
for(t=0;t<16;t++)
{
OLED_WR_Byte(ChineseFontLib[2*no+1][t],OLED_DATA);
adder+=1;
}
}
/**********************************************
//ÏÔê¾ÏÔê¾BMPí¼Æ¬128¡á64Æeê¼μã×ø±ê(x,y),xμÄ·¶Î§0¡«128￡¬yÎaò3μÄ·¶Î§0¡«8
//BMPÎaBMP.Hí·ÎļtàïÃæ×öoÃμÄí¼Æ¬êy¾Y
**********************************************/
//void OLED_DrawBMP(u8 x0, u8 y0,u8 x1, u8 y1,u8 BMP[])
//{
// unsigned int j=0;
//unsigned char x,y;
//if(y1%8==0) y=y1/8;
//else y=y1/8+1;
//for(y=y0;y<y1;y++)
//{
// OLED_Set_Pos(x0,y);
// for(x=x0;x<x1;x++)
//{
//OLED_WR_Byte(BMP[j++],OLED_DATA);
//}
//}
//}
/*******************************************************************************
????: ShowNumber
????: ????
????: ???????
????: x:??x??;y:??y??;num:?????;len:????;size2:???
? ? ?: ?
? ?:
? ?: 2018.03.07
******************************************************************************/
/**********************************************
//3õê¼»ˉSSD1306
**********************************************/
void OLED_Init(void)
{
OLED_WR_Byte(0xAE,OLED_CMD);//--display off
OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
OLED_WR_Byte(0x40,OLED_CMD);//--set start line address
OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
OLED_WR_Byte(0x81,OLED_CMD); // contract control
OLED_WR_Byte(0xFF,OLED_CMD);//--128
OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap
OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
OLED_WR_Byte(0x00,OLED_CMD);//
OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
OLED_WR_Byte(0x80,OLED_CMD);//
OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
OLED_WR_Byte(0x05,OLED_CMD);//
OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
OLED_WR_Byte(0xF1,OLED_CMD);//
OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
OLED_WR_Byte(0x12,OLED_CMD);//
OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
OLED_WR_Byte(0x30,OLED_CMD);//
OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
OLED_WR_Byte(0x14,OLED_CMD);//
OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
}
*******************************
ADC.H
********************************
#define VCC 4.965 // ′æ·ÅóÃíòóñíêμ2aμÄμ￥Ƭ»ú1©μçμçÑ1
#define ADC_POWER 0x80 //ADCμçÔ′¿ØÖÆλ
#define ADC_FLAG 0x10 //ADCíê3é±êÖ¾
#define ADC_START 0x08 //ADCÆe꼿ØÖÆλ
unsigned int ADvalue; // ′æ·ÅAD×a»»·μ»ØμĽá1û
//unsigned int ADC ()
//{
unsigned int i; //óÃóúèí¼tÑóê±3ìDò
unsigned char status=0; // óÃóúÅD¶ÏAD×a»»½áêøμıêÖ¾
unsigned int AD_Dat=0; // 10λAD×a»»Öμ
void ADC ()
{
P1M1 = 0x10;
ADC_CONTR|=0x80; // ¿aÆôAD×a»»μçÔ′
for (i=0;i<10000;i++); // êêμ±Ñóê±μè′yAD×a»»1©μçÎ趨￡¬ò»°ãÑóê±1msòÔÄú¼′¿é￡¬ÎaáËËõ¶ìAD
P1ASF|=0x10; // Ñ¡ÔñP1.4(0x10)×÷ÎaAD×a»»í¨μà
ADC_CONTR=0xE4;
ADC_CONTR|=0x08; // Æô¶ˉ A/D ×a»»￡¬ADC_START=1¡￡
while(status==0) // μè′yAD×a»»½áêø¡￡
{
status=ADC_CONTR&0x10; // ÅD¶ÏADC_FLAGêÇ·ñμèóú1￡¬0x10=0001 0000B¡￡
}
ADC_CONTR&=0xE7; // ½«ADC_FLAGÇå0￡¬ 0xE7=1110 0111B￡¬ADC_FLAG=0￡¬ADC_START=0¡￡
AD_Dat = (ADC_RES<<2)|(ADC_RESL&0x03); //¸ßμí×Ö½úÆ′½ó3éò»¸ö10λêy¡￡
//return AD_Dat;//¼ÆËã½á1û·μ»Ø
}
//Vin=VCC*ADvalue/1023; // ×￠òaêÇ10232ÅÕyè·
//sprintf(s, "%.3f", vin)
//delay500ms();
/*----------------------------
¶áè¡ADC½á1û
----------------------------*/
//BYTE GetADCResult(BYTE ch)
//{
//ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START;
//_nop_(); //μè′y4¸öNOP
//_nop_();
//_nop_();
//_nop_();
//while (!(ADC_CONTR & ADC_FLAG)); //μè′yADC×a»»íê3é
//ADC_CONTR &= ~ADC_FLAG; //Close ADC
//return ADC_RES; //·μ»ØADC½á1û
//}
/*----------------------------
3õê¼»ˉADC
----------------------------*/
//void InitADC()
//{
//P1ASF = 0xff; //éèÖÃP1¿úÎaAD¿ú
//ADC_RES = 0; //Çå3y½á1û¼Ä′æÆ÷
//ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
//Delay(2); //ADCéÏμç2￠Ñóê±
//}
/*----------------------------
èí¼tÑóê±
----------------------------*/
void delay500ms(void);
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