imx6ull接16位dsp

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imx6ull接16位dsp

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小辉哥
Contributor III

你好,我想用6ull接16位dsp,才用复用数据线地址线的方式,nand emmc,不能用了,sd1可以用,这个sd1是不是可以接emmc 然后采用4bit的方式,来作为启动设备呢?如果不行,是否k可以用LCD_DATA19-23来接emmc,作为启动设备?

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Rita_Wang
NXP TechSupport
NXP TechSupport

Hi,

The SD1 can be use connect the 4bit emmc. Here you ask about if you can use the LCD_DATA19-23 to connect the emmc and boot up, the answer is no. From our RM you can see the Table 8-18. SD/MMC IOMUX pin configuration, you can see that the emmc boot up USDHC2 from NAND not the LCD_DATA.

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Hope this can do help for you.

Have a nice day

Rita

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小辉哥
Contributor III

谢谢你,数据地址复用模式,要需要自己写一个驱动吗?还是只要在dts文件里设置时序:

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然后就可以在用户空间读写地址了?

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