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Jlink failed to connect #5

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eos21 opened this issue Sep 2, 2020 · 1 comment

eos21 commented Sep 2, 2020

参考你的PCB做了一个87的PCB，板子焊接好后准备用Jlink下载bootloader，但nrf52840无法连接，显示failed to connect

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eos21 commented Sep 3, 2020

可以连接成功了。jlink需要参考电压，所以板子要插usb线。

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