Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

JONATHAN LL — Mon, 14 Feb 2022 12:52:00 GMT

Great!

Yes, seams most modules leave out the external 32.767kHz crystal that can make these types of issues when moving from DK's to custom HW. Feel free to ask if there is anything else if not then pleas close this ticket and mark the previous reply as the correct answer so that other can find it easily in our forums.

Regards,
Jonathan

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

saeed mahvis — Mon, 14 Feb 2022 10:29:22 GMT

Hi Jonathan

The NORA-B1 module has installed a 32Mhz crystal and you should install the 32.768kHz externally.

We did not install this crystal in our sample board so we should have used the internal RC oscillator. By adding the above code to prj.Conf file the problem was solved.

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

JONATHAN LL — Mon, 14 Feb 2022 09:54:48 GMT

Are you able to debug?

Are you using external LF clock?
if not maybe try to sett the following in prj.conf:

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y

Regards,
Jonathan

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

saeed mahvis — Sun, 13 Feb 2022 08:00:21 GMT

Because of being not successful programming our NORA-B101 we provided a SEGGER JLINK programmer to program the NORA chip.

The result was the same. It could be erased and programed but the chip didn't work.

For the sake of clarity I will describe the building and flashing procedure of the NORA-B101 below:

First I erase the NORA chip.

Then I load the hci-rpmsg sample and build and run it by nRF Connect program.

Then I load the peripheral-uart sample and build and run it by nRF Connect program.

There are no error messages in the above actions.

Observing the flash memory content of NORA chip by programmer section of nRF connect program,

we can see a difference between the nrf5340 chip in development board and the NORA chip(as I

mentioned above previously).

I do the same things via SEGGER JLINK programmer and the result is the same. As I said before

even a simple program like Blinky sample doesn't work on NORA-B1.

Could you please to guide us solving this issue? Our production line is delayed because of

this problem.

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

JONATHAN LL — Tue, 04 Jan 2022 12:29:34 GMT

You could try to use the nrfjprog tool and try with terminal commands as an alterative to the programmer app.

You can use other programmer\debuggers to write to the nrf53 devices over SWD interface with a SEGGER J-link device.

Regards,
Jonathan

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

saeed mahvis — Tue, 04 Jan 2022 10:28:01 GMT

Is there any other way to program NORA-B101 apart from development kit?

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

JONATHAN LL — Tue, 04 Jan 2022 09:55:03 GMT

[quote user="saeed mahvis"]Basically I want to know if its possible to program an external NRF chip VIA the development kit at all.[/quote]

It should not be an issue to use the development kit as a programmer to program external boards.

The interfacing does seem to be successful since you hare able to read the memory layout of the NORA board, I find it strange that you are not successful in programming it.

What software are you flashing to the NORA device(custom code)?

Regards,
Jonathan

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

saeed mahvis — Tue, 04 Jan 2022 08:44:39 GMT

Hi again

As I mentioned before the NRF chip on development board can be programed and has no problem. But the external NRF seems

not to be programed correctly by development kit, although it can be erased with no problem and also passes the programing process

with no errors.

The chip on development board works perfectly but the external NRF on NORA doesn't work.

The above picture is The flash memory content of external NORA-B101 NRF chip after programing by NRF Connect and

this is the flash memory content of NRF chip on development board. As it can be seen there is a difference in Application aria

between two chips.

Basically I want to know if its possible to program an external NRF chip VIA the development kit at all.

RE: Programming external nrf5340 via nrf534 DK development kit and NRF Connect software.

JONATHAN LL — Mon, 03 Jan 2022 12:35:57 GMT

Hi,

[quote user=""]By using the NRF Connect software I can program the external NRF5340 with no errors , but even a simple program like Blinky sample doesn't work on external NRF5340.[/quote]

Did you mean that you can program the 53 DK but not the external(NORA-B101) board?

Debug out on the nRF5340 DK
https://infocenter.nordicsemi.com/topic/ug_nrf5340_dk/UG/dk/hw_debug_out.html?cp=3_0_4_3_9

Do you gett any error message ?

Regards,
Jonathan