FORMAT[2:0]=001
CLK=25MHZ;
请问 SCLK 怎么处理?是和CLK直接连?还是可以由外部提供给它?
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根据手册第八页,CLK与SCLK的比例最好是1倍、2倍以此类推。
据你的描述应该使用SPI接口,使用MCU或者DSP的SPI接口应该有个SCLK引脚与ADS1274的SCLK连接。