Can nrf51822+cp2102 set as a USB dongle

[chenyu]

Hi: I have no dongle or any other Dev board such as PCA10031. Can I use nrf51822 and cp2102 as a usb dongle to work with MCU of PC? If the answer is yes, what should I do? Thank you very much!

[awneil]

I would strongly suggest that you do get a dongle and dev board to start with.

Use them to gain sufficient experience to enable you to answer this question!

That way, you will have known-good hardware, and will be able to use all the Nordic examples and tools - without having to worry that any problems are due to issues in your custom design and/or assembly.

[Hung Bui]

Hi Chenyu,

I think should be possible. Make sure you have the driver for the USB-UART dongle (cp2102), then make sure you connect the same UART pins as with our Dongle and DK kit (P0.08= RTS, P0.09=TXD, P0.10= CTS, P011= RXD).

[awneil]

So many things to miss or get wrong - that's why you really should start with a Dev Kit!

[awneil]

And, of course, with a Dev Kit you have Support!

[chenyu]

I havn't the right HEX file for 518222 to be a dongle.I 've try flash"J-Link OB-SAM3U128-V2-NordicSemi 160212" or "nrf51822aa_atsam3u2c_if_mbed_V0218_19022015" or "nrf51822aa_atsam3u2c_if_mbed_V0219_02022016"But all of the can't be recognized by MCP software,and give a notice of "no response from master emulator". Can you provide a right Hex file? Is a softdevice needed befor flash dongle hex file?