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CC2652R7: uart 问题

Part Number: CC2652R7

刚买了 LP-CC2652R7 dev kit. 按使用指导连接 uart TxD, RxD, GND.  CCS 导入 example,

uartecho_LP_CC2652R7_nortos_ccs

build and debug.

然后运行.

PC uart 可以收到, LP-CC2652R7 dev kit TxD 发送的,"Echoing characters:"

但是,LP-CC2652R7 dev kit 却收不到 PC uart 发送的数据.

怀疑 dev kit   的 uart RxD pin 设置是否正确. 请TI核实一下.

谢谢!