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CC2642R 如何使用多个串口,是否可以用3个串口?

Other Parts Discussed in Thread: CC2642R

如题,在CC2642R的手册上写着 – 2× UART,

1 . 是不是可以理解成有2个硬件串口,然后可以再用Sensor Controller 模拟一路串口,可以做3个串口用?

2. 如果需要用USB串口烧写程序,固定使用哪两个引脚?

3. 串口驱动有参考文档吗?