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1、STC15系列单片机TSL1401线性CCD例程 （带PID自适应曝光程序）/*/* main.C */* Written By LYM-20160729 */* Version 1.0 */*/#include #include #include /-/-/-数据变量定义-/-/=extern uint8 Time0flag_10ms;extern uint8 Time0flag_20ms;uint8 Pixel128;/-/-具体函数实现-/=void main()uint8 i=0,send_data_cnt=0;uint8 *pixel_pt;Timer0_Init();Timer0_
2、Enable();Usart1_Init(115200);Usart1_ENABLE();CCD_GPIO_Init();pixel_pt=Pixel;for(i=0;i=5)send_data_cnt=0;SendImageData(Pixel);LED1_Flag();/Show_ADC();/*/* main.C */* Written By LYM-20160729 */* Version 1.0 */*/#include /-/-/-数据变量定义-/-/=uint8 Show30=0;/-/-具体函数实现-/=void Adc_Init()P1ASF |=0x08;ADC_RES=0
3、;ADC_RESL=0;ADC_CONTR=ADC_POWER|ADC_SPEEDLL;P1M0 &=0x08;P1M1 |=0x08;DelayAdc(2);uint16 GetAdc(uint8 Channel)uint16 adc;ADC_CONTR=ADC_POWER|ADC_SPEEDLL|Channel|ADC_START;_nop_();_nop_();_nop_();_nop_();while(!(ADC_CONTR & ADC_FLAG);ADC_CONTR &=ADC_FLAG;adc=ADC_RES;adc=adc2;adc+=ADC_RESL;adc=(adc*0.33
4、);/三位的整数，max=3.3Vreturn adc;void Show_ADC()float show;show=GetAdc(3);sprintf(Show,VCC=%4.1f ,show);Usart1_SendString(Show);/*/* CCD.C */* Written By LYM-20160803 */* Version 1.0 */*/#include /-/-/-数据变量定义-/-/=/-/-具体函数实现-/=void CCD_GPIO_Init()P2M0 &=0x03;/P20 CLK 准双向口P2M1 &=0x03;/P21 SIvoid CCD_StartI
5、ntegration()uint8i;CCD_SI=1;Delaynus(1);CCD_CLK=1;Delaynus(1);CCD_SI=0;Delaynus(1);CCD_CLK=0;for(i=0;i127;i+)Delaynus(2);CCD_CLK=1;Delaynus(2);CCD_CLK=0;Delaynus(2);CCD_CLK=1;Delaynus(2);CCD_CLK=0;void CCD_ImageCapture(uint8 * ImageData)uint8 i;CCD_SI=1;Delaynus(20);CCD_CLK=1;Delaynus(20);CCD_SI=0;D
6、elaynus(30);for(i = 0; i 250; i+) /更改250，让CCD的图像看上去比较平滑， Delaynus(1); /200ns /把该值改大或者改小达到自己满意的结果。 for(i=0;i128;i+)Delaynus(30);CCD_CLK=1;Delaynus(30);*ImageData=GetAdc(3)+90;/通道7 ImageData+;CCD_CLK=0;Delaynus(30);CCD_CLK=1;Delaynus(30);CCD_CLK=0;uint8 PixelAverage(uint8 len,uint8 *Data)uint8 i;uint1
7、6 sum;for(i=0;ilen;i+)sum=sum+*Data+;return (uint8)(sum/len);uint8 IntegrationTime=10;void CalculateIntegrationTime()extern uint8 Pixel128;/* 128个像素点的平均AD值 */uint8 PixelAverageValue;/* 128个像素点的平均电压值的10倍 */uint8 PixelAverageVoltage;/* 设定目标平均电压值，实际电压的10倍 */int16 TargetPixelAverageVoltage = 20;/* 设定目标平
8、均电压值与实际值的偏差，实际电压的10倍 */int16 PixelAverageVoltageError = 0;/* 设定目标平均电压值允许的偏差，实际电压的10倍 */int16 TargetPixelAverageVoltageAllowError = 2;/* 计算128个像素点的平均AD值 */PixelAverageValue = PixelAverage(128,Pixel);/* 计算128个像素点的平均电压值,实际值的10倍 */PixelAverageVoltage = (uint8)(int16)PixelAverageValue * 25 / 194);PixelAv
9、erageVoltageError = TargetPixelAverageVoltage - PixelAverageVoltage;if(PixelAverageVoltageError 10 ) PixelAverageVoltageError = 10 ; IntegrationTime -= PixelAverageVoltageError;if(PixelAverageVoltageError TargetPixelAverageVoltageAllowError) PixelAverageVoltageError /= 5;if(PixelAverageVoltageError
10、10 ) PixelAverageVoltageError = 10 ;IntegrationTime += PixelAverageVoltageError; if(IntegrationTime = 100)IntegrationTime = 100;void SendHex(unsigned char hex) unsigned char temp; temp = hex 4; if(temp 10) Usart1_SendDataChar(temp + 0); else Usart1_SendDataChar(temp - 10 + A); temp = hex & 0x0F; if(
11、temp 10) Usart1_SendDataChar(temp + 0); else Usart1_SendDataChar(temp - 10 + A); void SendImageData(unsigned char * ImageData) unsigned char i; unsigned char crc = 0; /* Send Data */ Usart1_SendDataChar(*);/向串口1发送数据/uart_putchar(UART0,*); Usart1_SendDataChar(L); Usart1_SendDataChar(D); SendHex(0); SendHex(0); SendHex(0); SendHex(0); for(i=0; i128; i+) SendHex(*ImageData+); SendHex(crc); Usart1_SendDataChar(#);
STC15系列单片机TSL1401线性CCD例程
