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OMAPL138周期读取ADC

Other Parts Discussed in Thread: ADS8866

现在需要在138上接入TI的ADS8866.并以100K的速率读取.ADS8866是串行口 DIN DOUT SCLK CONVST.其中CONVST是触发转换.芯片手册:

现在问题是,

1.我该使用什么口去读取数据?SPI MCBSP MABSP?

2.因为读取周期比较快,而且需要不停的控制CONVS信号,这样对CPU负担很大.这个信号可否自动控制?