写一个51单片机 tcs3200颜色识别代码，要求不用定时器，不用中断，以及需要白平衡，并说明所有的接线情况

以下是一个基于51单片机的TCS3200颜色识别代码，不使用定时器和中断，同时包括白平衡：

#include <reg51.h>
#include <stdio.h>

#define S2 P0_0
#define S3 P0_1
#define OE P0_2
#define OUT P0_3

unsigned int red, green, blue;

void delay(unsigned int time) {
  unsigned int i, j;
  for (i = time; i > 0; i--) {
    for (j = 112; j > 0; j--);
  }
}

void TCS3200_Init() {
  S2 = 0;
  S3 = 0;
  OE = 0;
}

void TCS3200_Read(unsigned char select) {
  switch (select) {
    case 0:
      S2 = 0;
      S3 = 0;
      break;
    case 1:
      S2 = 0;
      S3 = 1;
      break;
    case 2:
      S2 = 1;
      S3 = 0;
      break;
    case 3:
      S2 = 1;
      S3 = 1;
      break;
  }
  delay(10);
  OUT = 1;
  delay(10);
  red = OUT;
  delay(10);
  OUT = 0;
  delay(10);
  green = OUT;
  delay(10);
  OUT = 1;
  delay(10);
  blue = OUT;
  delay(10);
  OUT = 0;
}

void main() {
  TCS3200_Init();
  while (1) {
    TCS3200_Read(0);  // Select red channel
    red = (red << 8) | OUT;  // Read upper and lower bytes
    TCS3200_Read(1);  // Select green channel
    green = (green << 8) | OUT;  // Read upper and lower bytes
    TCS3200_Read(2);  // Select blue channel
    blue = (blue << 8) | OUT;  // Read upper and lower bytes

    // Perform white balance correction
    unsigned int max_val = red;
    if (green > max_val) {
      max_val = green;
    }
    if (blue > max_val) {
      max_val = blue;
    }
    red *= 255 / max_val;
    green *= 255 / max_val;
    blue *= 255 / max_val;

    // Output results
    printf("Red: %d, Green: %d, Blue: %d\n", red, green, blue);
  }
}

以下是TCS3200的接线情况：

- VCC: 连接到单片机上的5V电源
- GND: 连接到单片机上的GND
- S0和S1: 连接到单片机上的任意两个IO口，用于选择颜色通道
- S2和S3: 连接到单片机上的任意两个IO口，用于选择颜色采样频率
- OE: 连接到单片机上的任意一个IO口，用于控制输出使能
- OUT: 连接到单片机上的任意一个IO口，用于读取采样结果

注意：TCS3200的VCC电压不能超过5.5V，否则可能会损坏芯片。在连接VCC和GND之前，需要使用电容器对电路进行稳压。