【摘要】 介绍一种抗干扰能力强的 DTMF信号方式数据传输接口的工作原理与软件设计。将 16个 DTMF信号作为信息帧的 16种字段位码 ,同时采用校验码进行检错和纠错 ,使数据传输误码率几乎降到零更多还原

【Abstract】 The operation principle and software design of data transmission interface in DTMF signal mode with strong anti-interference are introduced,and 16 DTMF signal are taken as 16 segment codes of message frame,at the same time check code is adopted to detect error and correct error,thus making bit error rate of data transmission almost reduce to zero.更多还原