USB DFU trigger

RE: USB DFU trigger

LeoChen — Thu, 05 Dec 2019 01:10:47 GMT

Hi,

The DFU trigger works fine on Fanstel dongle.

I am satisfied for this.

Thanks for support.

RE: USB DFU trigger

Sigurd — Wed, 04 Dec 2019 09:07:10 GMT

Hi,

I don't see this issue here, testing on nRF52840-DK(PCA10056 v1.0.0) with a Windows 10 computer.

Make sure that pin P0.24 and P0.18 is connected.

Could you test with the hex file attached here:

devzone.nordicsemi.com/.../ble_5F00_connectivity_5F00_s140_5F00_usb_5F00_hci_5F00_pca10056.hex

What version of the DK do you use ? v1.0.0 or something else ?

Could you test with a Windows 10 computer?

RE: USB DFU trigger

LeoChen — Thu, 28 Nov 2019 06:49:40 GMT

Hi,

Thank you.

I used PCA10059 and Fanstel dongle does the same test.

These boards do not have that problem.

Maybe there is some problem on my PCA10056.

Can I also use "nrfutil dfu usb_serial" to do the DFU trigger then programming?

The "nRF connect/programmer" first time DFU trigger is working.

When I try to do DFU trigger again.

There is no response from the programmer.

Every time DFU trigger a dongle.

I need to close "nRF connect/programmer" then re-open it to avoid the problem.

The below video shows the problem.

https://www.dropbox.com/s/5hibuj6tk14zlux/Second%20time%20failed.mp4?dl=0

nRF Connect 3.3.0

Programmer 1.3.1

RE: USB DFU trigger

Sigurd — Wed, 27 Nov 2019 09:06:47 GMT

Hi,

I tested this on a nRF52840-DK. With P024 connected to reset pin P018. I used these commands:

nrfjprog -e
nrfjprog -f nRF52 --program USB840_Connect3in1.hex --verify --reset

Then, in the nRF Programmer app, I select the device(NOT the PCA10056, but the com port with USB: Nordic Semiconductor nRF52 Connectivity) and programmed the ble_app_hrs_pca10056_s140.hex
found in SDK15_folder\examples\ble_peripheral\ble_app_hrs\hex

After the DFU is done, the device advertises as Nordic_HRM. I turn the power off, and on again, and it still advertises as Nordic_HRM.

RE: USB DFU trigger

LeoChen — Tue, 26 Nov 2019 03:53:18 GMT

Hi,

Yes, I am using project examples\dfu\open_bootloader\pca10056_usb.

After change the DFU enters method to NRF_BL_DFU_ENTER_METHOD_PINRESET.

I can communicate with DFU trigger and upgrade the dongle right now.

The new problem is after a hardware reset or plug the dongle into the PC.

The dongle will into the DFU mode.

Only software reset can let the dongle running application.

Is it normal?

I have connected P024 to reset port P018.

I expected that only nRF connect/programmer will trigger the dongle into DFU mode.

devzone.nordicsemi.com/.../840usbConnBoot.hex devzone.nordicsemi.com/.../USB840_5F00_Connect3in1.hex

RE: USB DFU trigger

Sigurd — Mon, 25 Nov 2019 16:30:31 GMT

Hi,

What bootloader did you program ? The one in examples\dfu\open_bootloader\pca10056_usb ?

If that does not work, try this bootloader:

devzone.nordicsemi.com/.../0636.bootloader.hex