CDC_ACM with softdevice.

[Mike Wazowski]

Hi,

I have a BLE application, which I want to interface with PC via serial communication through USB.

It seems that just adding Softdevice breaks the USB_CDC_ACM example, which I have ported to Dongle (Worked fine without softdevice).

I have also changed application flash placement to start at 0x26000, so it doesn't collide with Softdevice.

Is it possible to combine cdc_acm with another BLE example, let's say peripheral blinky?

When combining two projects there is a lot of configuration to be merged in config files and more, is there a simple way to merge solutions? (I am using SES)

Also as an alternative connectivity examples work in a way that PC runs the logic through driver and Dongle acts as a physical link or am I misunderstanding the concept?

Awaiting Yours,

[Simon]

I would recommend you to start with a simple example where the SoftDevice is already present (for example ble_app_blinky or ble_app_template), then add code for the CDC ACM. This is an easier approach. See my steps explained in the initial answer.

[Mike Wazowski]

Simon, I have tried that. The issue is that if SoftDevice is present, that is SOFTDEVICE_PRESENT macro defined, CDC_ACM would not compile. It is difficult to make it simplier example than a single define statement.

[Simon]

I was able to make it work (SOFTDEVICE_PRESENT with the CDC_ACM example) in the follwing manner:

• Started with the USBD BLE UART Example, deleted all the content of the main.c file
• Copied the content of the main file from the USB CDC ACM Example into the example above
• Added the necessary path's, files and sdk_config definitions for the cli functionality to work
• Builded successfully

I have not run the example yet, or added any SoftDevice functionality.

The project is included as a zipped file.

Best regards, Simon

usbd_ble_uart_modified.zip