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am335x的串口裸机___只是简单的发送字符___能否不要FIFO



说实话,我看am335x的数据参考手册,在UART这一章节中,发现TI给出来的编程模型是:

1.UART复位

2.FIFO和DMA操作

3.帧格式

问题:我只是简单的使用一下UART的字符发送功能,能否不使用FIFO和DMA,

am335x的数据参考手册写的太复杂了,应该写的更加容易上手才行啊!!!!