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Save nrf51822-nrf51822 Burn Write program after change brick

Source: Internet
Author: User
Tags jlink
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Recently contact NRF51822, get started or relatively easy. Today found wonderful problem: Download an official Flashwrite program, not only the program is not properly executed, NRF51822 also become brick, Keil MDK can not identify the chip, NRFGO can not recognize the chip.

Without knowing, I burned another board, and still succeeded in changing bricks ...



(1) Keil MDK can not recognize the chip, restart, power off, disconnect j-link, no effect.



(2) Nrfgo also cannot find the chip.





(3) One read, found Jlink commander can find chip.




(4) using J-flash, erasing the problem firmware 001





(5) Use J-flash successful connection problem board, NRF51822





(6) Erase chip, restore.



(7) successfully saved NRF51822.



(7) Keil MDK also successfully identified.


Summary: As long as the hardware is not bad, do not burn, it is necessary to find the fundamental solution. Thank Jlink and its tools for being powerful.


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