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imx6q spi slave program change

Question asked by 留杰 付 on May 16, 2019
Latest reply on May 16, 2019 by igorpadykov

        Hi, my linux kernel is 4.1.15, my pad is connected to DSP through SPI。Now I want my pad wors as SPI slave, but I don't know how to do. So I want to know:  Do I need to rewrite a spi slave program and put it into the Linux kernel, or just modify the spi configuration register ?  And how  can I know the pad works which slave mode?