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菜鸟求助:ADS1278在SPI模式下SPI_CLK和1278_SCLK是一个时钟吗?

Other Parts Discussed in Thread: ADS1278

我把ADS1278的SCLK引脚和CLK引脚连在一起,通过Cotex-M3的PWM给1278输入时钟,DRDY输出也正确,通过示波器也能看到DOUT有波形,可是我想通过Cotex-M3的SSI采集DOUT时,不知道SSICLK怎么连了。请专家帮忙。先谢谢了。