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AM3351: spi1回环测试读取不到数据

Part Number: AM3351


您好,现在我使用AM3351的SPI1做回环测试通过内核自带测试程序spidev_test.c。我发现线上波形是对的,但是rx(MISO)无法读取到正确的数据。您可以帮忙看看吗