標(biāo)題: 請(qǐng)教大家一個(gè)單片機(jī)串口數(shù)據(jù)發(fā)送問(wèn)題,我加個(gè)發(fā)送數(shù)據(jù)狀態(tài)指示燈 [打印本頁(yè)]

作者: kfwxfl    時(shí)間: 2020-3-27 10:21
標(biāo)題: 請(qǐng)教大家一個(gè)單片機(jī)串口數(shù)據(jù)發(fā)送問(wèn)題,我加個(gè)發(fā)送數(shù)據(jù)狀態(tài)指示燈
我想實(shí)現(xiàn)的功能是每發(fā)完一幀數(shù)據(jù)LED就取反一下,頻閃的頻率一樣,現(xiàn)在遇到的問(wèn)題是我把數(shù)據(jù)存放在數(shù)據(jù)緩沖區(qū)再發(fā)送數(shù)據(jù),數(shù)據(jù)發(fā)送完了LED取反,因?yàn)閿?shù)據(jù)存放的時(shí)間不一樣,所以LED頻閃不一樣。




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