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📄 已经正确可用的ad7705程序 (ourdev_cn 我们的电子开发社区).htm

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      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;crcvalue&nbsp;=&nbsp;checksum(&amp;coefficient[0],6);&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;coefficient[6]&nbsp;=&nbsp;(unsigned&nbsp;char)(crcvalue%256);// 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;coefficient[7]&nbsp;=&nbsp;(unsigned&nbsp;char)(crcvalue/256);&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_busy_wait(); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_write_block(&nbsp;&amp;coefficient[0],&nbsp;(void*)(ADDR_EEPROM_1+(cali_scale-1)*10),&nbsp;8&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_busy_wait(); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_write_block(&nbsp;&amp;coefficient[0],&nbsp;(void*)(ADDR_EEPROM_2+(cali_scale-1)*10),&nbsp;8&nbsp;);&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_busy_wait(); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eeprom_write_block(&nbsp;&amp;coefficient[0],&nbsp;(void*)(ADDR_EEPROM_3+(cali_scale-1)*10),&nbsp;8&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Txout(&nbsp;&amp;coefficient[0]&nbsp;);//输出校准数据给上位机 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>} <BR><BR><BR>// <BR>void&nbsp;start_AD7705(void) <BR>{ 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;reset_AD7705(); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//写OFFSET寄存器 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;WR_OFFSET_REG&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_dword(&nbsp;ZS&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//写满量程校准寄存器 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;WR_FULL_REG&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_dword(&nbsp;GS&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//CLOCK寄存器设置,无分频,50HZ输出更新速率 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;WR_CLOCK_REG&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;CLOCK_REG_SET&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//写设置寄存器 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;WR_SETUP_REG&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;write_AD7705_byte(&nbsp;text_of_setup[scale-1]&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;start_timer0(); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while(&nbsp;time_count&nbsp;&lt;&nbsp;time_read_data&nbsp;); 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stop_timer0(); 
      <BR>}</FONT> </TD></TR>
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