资源描述：
《基于单片机的多通道温度检测源代码》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、基于单片机的多通道温度检测源代码CLRP3.7MAIN:MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPERLCALLTEMPRROMOVP2,#06HLCALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER2LCALLTEMPRROMOVP2,#5BHLCALLPRO;----------
2、--------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER3LCALLTEMPRROMOVP2,#4FHLCALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER4LCALLTEMPRROMOVP2,#66HLC
3、ALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER5LCALLTEMPRROMOVP2,#6DHLCALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER6LCALLTE
4、MPRROMOVP2,#7DHLCALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLGET_TEMPER7LCALLTEMPRROMOVP2,#07HLCALLPRO;------------------------------------------------------MOV38H,#00HMOV39H,#00HMOV3AH,#00HMOV3BH,#00HLCALLG
5、ET_TEMPER8LCALLTEMPRROMOVP2,#7FHLCALLPROLJMPMAIN;==============================================CHL1GET_TEMPER:SETBP1.0H;定时入口BCD:LCALLINIT_1820JB00H,S22LJMPBCD;若DS18B20不存在则返回S22:LCALLDELAY1MOVA,#0CCH;跳过ROM匹配------0CC命令LCALLWRITE_1820MOVA,#44H;发出温度转换命令LCALLWRITE_1820NOPLCALL
6、DELAY1CBA:LCALLINIT_1820JB00H,ABCLJMPCBAABC:LCALLDELAY1MOVA,#0CCH;跳过ROM匹配LCALLWRITE_1820MOVA,#0BEH;发出读温度命令LCALLWRITE_1820LCALLREAD_18200;READ_1820RET;==============================READ_1820:MOVR2,#8RE1:CLRCSETBP1.0HNOPNOPCLRP1.0HNOPNOPNOPSETBP1.0HMOVR3,#7DJNZR3,$MOVC,P1.0H
7、MOVR3,#23DJNZR3,$RRCADJNZR2,RE1RET;=============================WRITE_1820:MOVR2,#8CLRCWR1:CLRP1.0HMOVR3,#6DJNZR3,$RRCAMOVP1.0H,CMOVR3,#23DJNZR3,$SETBP1.0HNOPDJNZR2,WR1SETBP1.0HRET;=======================================READ_18200:MOVR4,#2;将温度高位和低位从DS18B20中读出MOVR1,#31H;低位存
8、入30H(TEMPER_L),高位存入31H(TEMPER_H)RE00:MOVR2,#8RE01:CLRCSETBP1.0HNOPNOPCLRP1.0HNOPNOPNOPSET
