Error code 13 when trying to open nRF52840 Dongle with pc-ble-driver-py

[Dmitry_s]

When I open device just after I plug it in the PC it work fine, but when I try to do it again (exit python script and run it again) I'm getting Error code 13.

Firmware: connectivity_1.2.3_usb_with_s132_3.1.hex 

Steps I do:

1. Open

2. Connect

3. Disconnect

4. Close

When I'm not connected to any device it will work fine, but when I'm connected to something the pc-ble-driver-py will raise error on the next time I'm trying to open the device.

When I'm closing device without disconnecting It will run fine sometimes, but not always. Only thing that will fix it is unplugging and plugging dongle to the PC or reset device through nRF Connect (Programmer app)

So how do I open device without errors?

[Mttrinh]

Hi,

I'm a little bit confused, so it always work fine the first time you plug it in the PC. It also works fine when you close it and run the application again if the dongle isn't connected to any device. But if the dongle is connected to a device and you closing the application without disconnecting first, it only works sometimes? Am I correct?

Does this also happen if you connect then disconnect before closing the application?

Error code 13 means timeout in comminucation between ble-driver and connectivity firmware.

[Mttrinh]

It is known that the connectivity firmware for PCA10059(NRF52 Dongle) is somewhat unstable, also when it comes to close-open. A new version of pc-ble-driver-py is just around the corner, so I will recommend you to wait until it is released. The new version contains improvements of the connectivity firmware, so it might solve this issue.

[Dmitry_s]

Hi,

Thanks for answer. Currently I started using connectivity_4.0.0_usb_with_s132_3.1.0.hex firmware from pc-ble-driver repository, looks like it work fine, hope there is no big mistake to use it with the current pc-ble-driver-py