static?unsigned?short?Make_CRC（unsigned?char?*Data_buffint?Data_length）?//調用此函數生成CRC校驗碼，函數返回CRC校驗碼//
{
	if（NULL?==?Data_buff）
		return?0xffff;
	unsigned?short?wcrc?=?0xffff;?//CRC寄存器預置//
	unsigned?char?temp;
	unsigned?int?i=0j=0;?//計數//
	
	/*循環(huán)計算每個數據*/
	for（i=0;i	{
		temp?=?*Data_buff?&?0x00ff;
		Data_buff++;?//next?data//
		
		wcrc?^=?temp;
		for（j=0;j<8;++j）??//對單筆數據進行具體計算//
		{
			if（0!=?（0x0001?&?wcrc））??//判斷數據右移出的是否為1如果是，則與多項式0xa001異或//
			{
				wcrc?>>=?1;
				wcrc?^=?0xa001;
			}
			else
				wcrc?>>=?1;
		}
	}
	
	//對計算結果進行高低字節(jié)兌換//
	unsigned?char?CRC_L?=?wcrc?&?0xff;
	unsigned?char?CRC_H?=?wcrc?>>?8;
	
	return?（（CRC_L?<}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????781??2020-07-31?15:47??Modbus_RTU\Build_CRC.c

?????文件??????20092??2020-07-31?15:47??Modbus_RTU\Modbus_master.c

?????文件???????2458??2020-07-31?15:47??Modbus_RTU\Modbus_master.h

?????文件?????154323??2020-07-31?15:47??Modbus_RTU\Modbus_save庫.rar

?????目錄??????????0??2020-07-31?15:48??Modbus_RTU

-----------?---------??----------?-----??----

???????????????177654????????????????????5