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am4379如何在uboot下驱动SPI输出数据控制APA102(灯带)

Other Parts Discussed in Thread: AM4379

大家好,我想在系统启动的时候通过SPI控制APA102灯带亮,请问是否是在uboot里面实现功能,如何实现?

我用的是uboot是2014.7版本的,好像对am4379支持不够。是否需要使用更新版的uboot。