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ID:38204528
大小:28.00 KB
页数:3页
时间:2019-05-25
《DA转换原理实验》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、D/A转换原理实验1.斜波(锯齿波):CODESEGMENTASSUMECS:CODEMAINPROCLP:MOVDX,308HMOVCX,0FFFHL1:MOVAL,0;要产生斜率为负的斜波则应改为:MOVAL,0FFHL2:OUTDX,ALINCALJNZL2LOOPL1MOVAH,1INT16HJNZEXITJMPLPEXIT:MOVAX,4C00HINT21HMAINENDPCODEENDSENDMAIN2.三角波:CODESEGMENTASSUMECS:CODEMAINPROCLP:MOVDX,308HMOVCX,0FFFHL1:MOVAL,0L
2、3:OUTDX,ALINCALJNZL3MOVAL,0FFHL2:OUTDX,ALDECALJNZL2LOOPL1MOVAH,1INT16HJNZEXITJMPLPEXIT:MOVAX,4C00HINT21HMAINENDPCODEENDSENDMAIN1.梯形波:CODESEGMENTASSUMECS:CODEMAINPROCLP:MOVDX,308HMOVAL,0HL1:OUTDX,ALINCALJNZL1MOVCX,0FFHMOVAL,0FFHL2:OUTDX,ALLOOPL2MOVAL,0FFHL3:OUTDX,ALDECALJNZL3MOVCX,
3、0FFHMOVAL,0HL4:OUTDX,ALLOOPL4MOVAH,1INT16HJNZEXITJMPLPEXIT:MOVAX,4C00HINT21HMAINENDPCODEENDSENDMAIN
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