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I have a Chinese rip-off game pad, which has an n51802 which is by nordic. I want to flash my own firmware but i’m unable to find any information about it. I can put it in DFU mode, so it is flashable, i have the original firmware from the company - but reversing it would take too much time.

It seems very similar to nrf51822 but i don’t know if they are binary compatible, have same address space etc.

What can i do to find more information about developing for it?

dzervas
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  • It's mentioned in the release notes of the nRF SDK, so you should probably start there and other manufacturer info sources. Finding offsite resources is not within the mission of SE sites. Likely the flashing algorithm is comparable to the more well-known members of the family but it's possible something like openocd might need small changes. – Chris Stratton Feb 22 '18 at 18:58

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I think it may be the nRF51802 or nRF51822 (you might have read the digits in the wrong order). Quite popular part. You can get the SDK, SoftDevices and all manuals from Nordic's website. SEGGER provides free Embedded Studio for Nordic chips.

You will also need a debug probe ("JTAG") to flash the device, for example a J-Link EDU or FTDI adapter + OpenOCD.

filo
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