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LP-CC1312R7: LP-CC1312R7例程无法输出串口信息

Part Number: LP-CC1312R7
Other Parts Discussed in Thread: CC1312R7

LP-CC1312r7的官方例程mcuboot_LP_cc1312r7和mcuboot_blinky_LP_cc1312r7可以编译,可以成功下载显示流水灯。但是按照串口速率配置3000000无法输出串口信息。请工程师验证一遍,看看是什么原因?  检查过官方的uart例程,芯片的uart口是可以正常工作的