请问怎么将32位数转换为ASCII

你好，我想把一个32位的数字转换成ASCII字符，这样我就可以把它们发送到Twitter。我使用CP2102模块，PIC18F47 K40，XC8 V1.44和RealTalm。第一个数字被正确计算。作为输入，我用4294967295作为输出，在timeNI上得到424497 66 40i，也尝试了PIC。16F1939也有同样的结果。当我写16位时，它工作得很好。我的代码有什么问题？



      以下为原文

    Hello I am trying to convert a 32 bits number into ASCII characters,
so that I can send them to the therminal.
I use a CP2102 module, Pic18F47K40 , XC8 v1.44 and Realterm.
The first digits are calculated correct.
as input I use 4294967295 as output on the therminal I get 4294976640

I also tried the PIC16F1939 with the same result.
When I write it 16 bits it works fine.
What is wrong on my code?

while(1)
{
   uint32_t binair_4, binair4;
   binair4 = 4294967295;
   binair_4 = binair4;

   uint8_t n10e8 = (binair_4 / 10e8);
   binair_4 = binair_4 - (n10e8 * 10e8);
   
   uint8_t n10e7 = (binair_4 / 10e7);
   binair_4 = binair_4 - (n10e7 * 10e7);
   
   uint8_t n10e6 = (binair_4 / 10e6);
   binair_4 = binair_4 - (n10e6 * 10e6);
   
   uint8_t n10e5 = (binair_4 / 10e5);
   binair_4 = binair_4 - (n10e5 * 10e5);

   uint8_t n10e4 = (binair_4 / 10e4);
   binair_4 = binair_4 - (n10e4 * 10e4);
   
         
   uint8_t n10e3 = (binair_4 / 10e3);
   binair_4 = binair_4 - (n10e3 * 10e3);
   
   uint8_t n10e2 = (binair_4 / 10e2);
   binair_4 = binair_4 - (n10e2 * 10e2);
   
   uint8_t n10e1 = (binair_4 / 10e1);
   binair_4 = binair_4 - (n10e1 * 10e1);
   
   uint8_t n10e0 = (binair_4 / 10e0);
   binair_4 = binair_4 - (n10e0 * 10e0);
   
   uint8_t n1 = binair_4;
  
   if (binair4 >= 10e8 ) send_character_to_TX(n10e8 + '0');
   if (binair4 >= 10e7 ) send_character_to_TX(n10e7 + '0');
   if (binair4 >= 10e6 ) send_character_to_TX(n10e6 + '0');
   if (binair4 >= 10e5 ) send_character_to_TX(n10e5 + '0');
   if (binair4 >= 10e4 ) send_character_to_TX(n10e4 + '0');
   if (binair4 >= 10e3 ) send_character_to_TX(n10e3 + '0');
   if (binair4 >= 10e2 ) send_character_to_TX(n10e2 + '0');
   if (binair4 >= 10e1 ) send_character_to_TX(n10e1 + '0');
   if (binair4 >= 10e0 ) send_character_to_TX(n10e0 + '0');
                         send_character_to_TX(n1 + '0');
   
   send_character_to_TX(0x0D); //new line}
   __delay_ms(500);
  }