NRF52840 Dongle PCA10059 USB CDC to NUS data transfer

[parallelko]

Hello,

I want to use nRF52840 dongle as complite hardware for comunication with other device via USB CDC (Virtual Com port).

 

End device is datalogger, and i can configure it just with any terminal program via USB virtual com port. Producer told me that USB-port is a generic CDC class USB device.

In examples i found:

nRF5_SDK_15.0.0_a53641a\examples\peripheral\usbd_ble_uart\pca10056\s140

This example does exactly what i need. But this example for PCA10059 board.

But anyway i tried flash my nRF52840 dongle, this example and test on my PC and app nRF Connect for android.

PC detected doungle like Virtual COM port. And in nRF connect i also sucsessfully make connect with doungle, but when i tried to write data in RX characteristics, i don't recieve any data in terminal program.

What i should change in example?

[Sigurd]

Hi,

Try changing the preprocessor symbol BOARD_PCA10056 to BOARD_PCA10059 instead.

In SES this can be done as shown in this screenshot:

[parallelko]

Dear Sigurd,

Yeah thanks, finaly got it.

About my issue, i finaly recieve data. I use Terminal v1.9b program, and for recieving data i should switch handshaking to RTS/CTS.

Can i turn off handshaking?

Also I realized that i can't do my task because NRF52840 can't be USB Host. Is it true?

[Sigurd]

Hi,

parallelko said:

Can i turn off handshaking?

I can check.

parallelko said:

Also I realized that i can't do my task because NRF52840 can't be USB Host. Is it true?

That is true. The USB on the nRF52840 is a USB Device.