Light_bulb example for 52840 Dongle

[Manju_rn]

Please guide what changes are to be done for the Light bulb example to be run in 52840 Dongle?

I am using VS Code and built the Build Configuration using the Dongle configuration that was available.  Since the compilation gave this error, I updated the PWM Driver to the one mentioned in the DTS file. 

/* Use onboard led4 to act as a light bulb.

 * The app.overlay file has this at node label "pwm_led3" in /pwmleds.

 */

#define PWM_DK_LED4_NODE                DT_NODELABEL(blue_pwm_led)

It build fine and generates the .hex file.  However, after loading the hex file in the Dongle using the Programmer V2.0.0 the DFU loading is fine but upon completion it gives the below

12:29:13.049

Uploading image through SDFU: 99%

12:29:13.271

Uploading image through SDFU: 100%

12:29:13.421

All dfu images have been written to the target device

12:29:16.444

Failed to write: Timeout while waiting for device EF30A289B89F to be attached and enumerated

The dongle is not corrupted as I again again reset the same and reinstall. I have also loaded my earlier dongle firmware and it runs fine.  So the Dongle is fine.  Just need to check why is the above error after successful write?

[Simonr]

1. Yes, if you connect the Dongle as the custom board to the DK as shown in the image in my previous reply (and the Dongle operates at 3V) you should be able to debug the Dongle using the DK. If it runs at a lower voltage, our DK is not capable of debugging it and you'll need a compatible J-Link device.

2. After double checking with one of my colleagues it seems like the Zigbee examples for the nRF52840 Dongle is not officially supported, check out Marte's suggestion for how to add Dongle support to an example not already supporting it here.

3. This was more a suggestion if you for some reason weren't able to build the project correctly in VS code, as I imagined that could be the case, but it seems that's not it.

Best regards,

Simon

[Manju_rn]

Simonr said:

Yes, if you connect the Dongle as the custom board to the DK as shown in the image in my previous reply (and the Dongle operates at 3V) you should be able to debug the Dongle using the DK

Well, I made all the connections properly and after this connections, the dongle is no longer operating. I guess the voltage is not 1.8v and hence no longer booting up? Can you double check the suggestion about the connectivity you gave above.  To all who are following this thread, DO NOT do the connection as suggested earlier, at least until this is clarified

Simonr said:

es, it's possible to flash the Dongle using a DK and the SWDIO and SWDCLK pins on the Dongle. You'll need to solder on some pin headers on SWDIO, SWDCLK, VDD and GND in order to be to connect the DK like the image below to the Dongle (custom board in the image):

Simonr said:

check out Marte's suggestion for how to add Dongle support to an example not already supporting it here.

The Marte's suggestion actually worked. so the dongle (another dongle, not the one from above) is sending the data to zigbee2mqtt now.  However, only the first time. I removed the dongle and connected again to usb - the LED still flash (indicating it is working) but it is no longer sending the data again.  The dongle is still flash-able repeatedly, so it is still working  :-)

Any suggestions?