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!

[Hung Bui]

Hi Chenyu,

You need to tell me how you connect the nRF51822 to the cp2102. The hex files you mentioned were not for the nRF51 but the interface CPU on the dev kit that you don't have.

And I agree with Awneil, it's easier that you get started with a DevKit.

[chenyu]

Oh, I connect the pin between 51822 and cp2102 as(P0.08= RTS, P0.09=TXD, P0.10= CTS, P011= RXD), Thr probable reason is I havn't a rigtht hex file for nrf51822.

[Hung Bui]

@Chenyu: Sorry that I thought you wanted to use the chip with the PC Master Control Panel. If not, then you are free to connect any pins. You can test with the UART example in the nRF5 SDK. Note that you need to have the driver for the cp2102 so that it opens a virtual comport on your PC.

[chenyu]

Yeah,What you thought is right, I just want to use these two IC(nrf51+cp2102) to connect PC Master Control Panel as a usb dongle.

[Hung Bui]

If you want to use with Master Control Panel, you need to flash MEFW_nrf51822_0.11.0_firmware_1M.hex from C:\Program Files (x86)\Nordic Semiconductor\Master Control Panel\3.10.0.14\firmware\pca10000 folder