智能车制作

标题: 求问此段代码是什么意思 [打印本页]

作者: Aurora 时间: 2015-12-20 20:00
标题: 求问此段代码是什么意思
void CalculateIntegrationTime(void) {

/* 计算128个像素点的平均AD值 */
PixelAverageValue = PixelAverage();
/* 计算128个像素点的平均电压值,实际值的10倍 */
PixelAverageVoltage = (u8)((s16)PixelAverageValue * 25 / 128);
PixelAverageVoltageError = TargetPixelAverageVoltage - PixelAverageVoltage;
if(PixelAverageVoltageError < -TargetPixelAverageVoltageAllowError)
      IntegrationTime-=1;
if(PixelAverageVoltageError > TargetPixelAverageVoltageAllowError)
      IntegrationTime+=1;
if(IntegrationTime <= 1)
      IntegrationTime = 1;
if(IntegrationTime >= 20)
      IntegrationTime = 20;
}
void StartIntegration(void) {

//unsigned char i;

SI=1;          /* SI  = 1 */
delay200ns();
CLK=1;          /* CLK = 1 */
delay200ns();
SI=0;          /* SI  = 0 */
delay200ns();
CLK=0;          /* CLK = 0 */

for(u8 i=0; i<127; i++) {
      delay200ns();
      delay200ns();
      CLK=1;    /* CLK = 1 */
      delay200ns();
      delay200ns();
      CLK=0;    /* CLK = 0 */
}
delay200ns();
delay200ns();
CLK=1;          /* CLK = 1 */
delay200ns();
delay200ns();
CLK=0;          /* CLK = 0 */
}
void SendHex(unsigned char hex) {
  unsigned char temp;
  temp = hex >> 4;
  if(temp < 10) {
uart_putchar (UART5,temp + '0');
  } else {
uart_putchar (UART5,temp - 10 + 'A');
  }
  temp = hex & 0x0F;
  if(temp < 10) {
uart_putchar (UART5,temp + '0');
  } else {
uart_putchar (UART5,temp - 10 + 'A');
  }
}
void SendImageData()
{

u8 crc = 0;

/* Send Data */
uart_putchar (UART5,'*');
uart_putchar (UART5,'L');
uart_putchar (UART5,'D');

SendHex(0);
SendHex(0);
SendHex(0);
SendHex(0);

for(u8 i=0; i<128; i++) {
   SendHex(im[i]);
}Q

SendHex(crc);
uart_putchar (UART5,'#');
}

欢迎光临智能车制作 (http://dns.znczz.com/)