BLE app uart example not running after flashing

RE: BLE app uart example not running after flashing

Julian — Fri, 17 Aug 2018 02:06:49 GMT

Hi Joakim,

I have downgraded to SES v3.34b and the problem disappears. I have also found some explanation and an alternative solution to the issue in this link

RE: BLE app uart example not running after flashing

Joakim Jakobsen — Thu, 09 Aug 2018 07:07:05 GMT

Hi!

I am not able to reproduce this.
I've tried the release configuration and flashing from SES, using nrfjprog, nRF Connect - Programmer and there is no issue.

Maybe you could try downgrade to SES v.3.34.

As you can see from the SDK v.15.0.0 release notes, SES v.3.34 is the tested and supported version.

We have seen some issues with the combination of SES v.3.40 and SDK v.15.0.0.

Best regards,
Joakim.

RE: BLE app uart example not running after flashing

Julian — Tue, 07 Aug 2018 04:44:52 GMT

Hi Joakim,

I'm using SES release 3.40.

Build configuration is Release.

I'm using the SES build and run command, which performs the flashing of the softdevice and the actual firmware to the chip.

I have tried manually flashing the softdevice using make flash_softdevice, and then make flash the .hex output by SES(not makefile), using nrfjprog. This doesn't work, as in the firmware doesn't run.

So my workaround right now is using SES to write code, and then using make to build and flash.

Thanks for your support on this.

RE: BLE app uart example not running after flashing

Joakim Jakobsen — Mon, 06 Aug 2018 11:40:30 GMT

You might be correct. However, I haven't seen any trouble building the example in SES.

Which version of SES do you have?
Which build configuration are you using?
Are you using SES to download the application and softdevice to your board?
Are you sure the softdevice is being flashed to the device?
Have you tried flashing the softdevice and the .hex file output by SES using nrfjprog/nRF Connect - Programmer app?

I haven't been able to find any issues with the ble_app_uart example.

Cheers.

RE: BLE app uart example not running after flashing

Julian — Thu, 02 Aug 2018 01:53:01 GMT

Hi Joakim,

Here's an update on what I've tried so far.

1. Flashing the precompiled hex file has no problems. The firmware runs immediately.

2. Building the example out of the box using SES and then flashing that fails to run the firmware.

3. Building using the makefile provided has no problems.

So I'm suspecting something with the SES build procedure.

RE: BLE app uart example not running after flashing

Joakim Jakobsen — Mon, 30 Jul 2018 14:39:14 GMT

Hi!

That is strange. I have no problem running the UART examples in the SDK.

Have you made any modifications to the code?
We have a precompiled hex file (where the softdevice and application hex files have been merged).
Located in sdk_folder/examples/ble_peripheral/ble_app_uart/hex
Maybe you could try to flash that to your DK and see if that works?

Best regards,
Joakim.