I can't get response from nrf52832

[MOHAMED AHMED ALI MAHMOUD ELSABAGH]

I flashed firmware into my nordic nrf52832 DVK 

https://github.com/NordicSemiconductor/pc-ble-driver/blob/99b5e78f96de60ee70e749bb89b280116275fb97/hex/sd_api_v3/connectivity_1.2.0_115k2_with_s132_3.0.hex

I am using my Ubuntu machine with pc_ble_driver_py wrapper to communicate over UART with nrf52832 and run example code advertising.py

I followed steps to compile the C library, and once I run the example code I can see from my logic analyzer that's the Ubuntu machine is sending packets over tx channel

My problem is that I don't get any response from the nrf52832 dvk, I am not sure what might be wrong here

[Mttrinh]

Hi,

Which version of pc-ble-driver are you using? 

pc-ble-driver-py are not compatible with v5, but with v3. So you have to use pc-ble-driver tav v2.x and not master branch:

https://github.com/NordicSemiconductor/pc-ble-driver/releases

Note: v2.x releases are for SD API v2 & v3, v3.x releases are for SD_API v2 & v5.

[Mttrinh]

Can you try this connectivity firmware?

github.com/.../connectivity_1.2.2_115k2_with_s132_3.0.hex

[MOHAMED AHMED ALI MAHMOUD ELSABAGH]

I read this before it helped me with older errors, but as you can see the pi is now sending packets over UART so I am assuming the pc ble driver python is sending what it's supposed to send but problem nordic connectivity board is not replying

[MOHAMED AHMED ALI MAHMOUD ELSABAGH]

Could you please verify that on your machine you can run the python driver on github, and connect to the Nordic running connectivity firmware in the github repo and run the example code?

I really appreciate your help

[Mttrinh]

Yes, it seems to work fine on my machine. I managed to run the advertising example and connect.

[MOHAMED AHMED ALI MAHMOUD ELSABAGH]

Ok great can you please confirm the following

which version of firmware is flashed on your nordic chip?

are you using nrf5281 or nrf52832?

What is your machine type, is it Ubuntu?

How did you connect your machine with the nrf52 (pin out)?

if you have a logic analyzer, can you see same bytes sent over the UART tx from your machine?

Thanks so much in advance

[Mttrinh]

I used the connectivity firmware found here: 

https://github.com/NordicSemiconductor/pc-ble-driver/blob/v2.2.1/hex/sd_api_v3/connectivity_1.2.2_115k2_with_s132_3.0.hex

I am using nRF52832. I am using a RF52-DK so I am using an USB cable to connect to my machine. I am running Windows on my machine. 

Did you follow this to setup the pc-ble-driver correctly?

https://github.com/NordicSemiconductor/pc-ble-driver/blob/master/Installation.md 

[MOHAMED AHMED ALI MAHMOUD ELSABAGH]

for me I am using Fanstel BT832x DVK, here is the schematic of the board https://static1.squarespace.com/static/561459a2e4b0b39f5cefa12e/t/5905ee34579fb3c5cc57eeff/1493560884625/EV+BT840+V3.pdf

I am not sure if there is something wrong with the dc-dc coil or external clock that needs special configuration in the firmware instead of using the out of the box percompiled hex files, I tried using the same hex file you are using I switched SW5 on which means the external crystal is connected

I am still getting same error

```

Serial port used: /dev/ttyUSB0
Traceback (most recent call last):
  File "advertising.py", line 79, in <module>
    main(sys.argv[2])
  File "advertising.py", line 55, in main
    driver.open()
  File "/usr/local/lib/python2.7/dist-packages/pc_ble_driver_py-0.11.3-py2.7.egg/pc_ble_driver_py/ble_driver.py", line 127, in wrapper
    raise NordicSemiException('Failed to {}. Error code: {}'.format(wrapped.__name__, err_code))
pc_ble_driver_py.exceptions.NordicSemiException: Failed to open. Error code: 13

```

I can see packets send from my Ubuntu machine but yet I can't see any response from the Fanstel DVK