how to use nrf52840 dongle as a virtual comp port

[rohit vekariya]

hii this is rohit vekariya 

i am new in nordic , i am trying to use nrf52840 dongle for usb communication with PC my goal is get data from mobile app and send it to pc   ,

i use Nordic SDK\nRF5_SDK_17.0.2_d674dde\examples\peripheral\usbd_cdc_acm\pca10056\blank\arm5_no_packs example for virtual comp port generation ,

i did changes according this  https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial  for PCA10059 with soft device.

when i try to load hex file in dongle using nRF connect it show some soft device and application overlapping  for detail please attached image, please help to solve this and if you have any ready example code for my application please provide .

thanks

[Vidar Berg]

Hi Rohit,

It looks like there is a problem with the linker configuration in your case. The Application should start at address 0x1000 in flash, and at 0x20000008 in RAM.

Attached below is a pca10059 configuration I made for this project, but I it's for the SES IDE as I didn't notice that you were using Keil uvision at first.

Segger embedded studio Project

1440.usbd_cdc_acm.zip

Compiled hex file

usbd_cdc_acm_pca10059.hex

[Masoumeh]

Hi, I have the same problem using nrf52840 dongle with this example. How can I change the configuration in Keil? May you give me some hints? Thanks 

[Vidar Berg]

Hi,

You can change it in "options for target" as the screenshot below shows.