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What is this SWD error that occurs on loading a softdevice

Hello,

When i try to drop the softdevice to the mbed evaluation board it gives the error "SWD error",in a text document "fail.txt",in the MBED drive.

If it is successfully dropped then another error occurs on debugging the program to the evaluation board as "AGDI Cortex -M error-------cannot access memory".

how can i solve this issue ,is that something related to the debugging wire??

please help

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  • I am having similar issue. I was able to flash programs using SWD, but couldn't erase the softdevice. I saw a note in the forum to reset nrf51822 by holding RESET pin to ground for 5 secs. I started seeing this issue - "AGDI Cortex -M error-------cannot access memory(0xf0000ff0, Read, Acc Size 4bye)" after that. RESETing again doesn't help. Is the memory gone bad? Any other way to ascertain that board is unusable?

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