CAJ | 학술논문

在信号处理过程中,自然界的模拟信号首先要经过A/D转换器(ADC)变换成数字信号,送到DSP中.文章设计了一种高精度的转换序列发生器,能分别单独处理8位数据,并行后能处理16位数据.这意味着ADC每收到一个启动转换请求,模块可以自动执行多次转换.对于每一次转换,可以通过模拟多路开关选择16个可用输入通道中的任何一个.转换结束后,所选通道的转换结果被保存在相应的结果寄存器中.也可以对同一个通道采样多次,允许用户使用“过采样”,其较传统的单次采样转换结果提供了更高的精度.该设计为高精度DSP的设计提供了良好的技术基础.
재신호처리과정중,자연계적모의신호수선요경과A/D전환기(ADC)변환성수자신호,송도DSP중.문장설계료일충고정도적전환서렬발생기,능분별단독처리8위수거,병행후능처리16위수거.저의미착ADC매수도일개계동전환청구,모괴가이자동집행다차전환.대우매일차전환,가이통과모의다로개관선택16개가용수입통도중적임하일개.전환결속후,소선통도적전환결과피보존재상응적결과기존기중.야가이대동일개통도채양다차,윤허용호사용“과채양”,기교전통적단차채양전환결과제공료경고적정도.해설계위고정도DSP적설계제공료량호적기술기출.
The natural analog signal may turn to digital signal by AD convertor first, and then transport to the DSP, in the process of signal manages. This paper design a high precision conversion sequence generation. It can deal with 8 bits data respectively and 16 bits data in parallel. It means that:ADC received every conversion request;the module will conduct several conversions automatically. Each of conversion, we can choice every input channel through the 16 analog MUX. After the conversion, the results are saved in result-registers. We also can sample several times in a channel. Let consumer use pass-sample, which supplied more precision than traditional single conversion. This work supplies a good technologic base for high precision DSP design.