Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Sujiv0 — Wed, 25 Feb 2026 16:00:58 GMT

Hi All,

Thanks for the support.

I had to enable the internal clock of the Module in the configuration file (CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y).

After this, the code successfully flashed to the module and is working fine.

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Sujiv0 — Sun, 25 Jan 2026 02:52:37 GMT

Let me try the debugging options.

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Turbo J — Sat, 24 Jan 2026 17:04:42 GMT

Fist steps: Get Segger RTT working on the DK with a sample (like blinky). Then learn what the "Debug" button does.

THEN you can try running stuff on an external board. With Segger RTT and a debugger you can see at least somewhat where problems occur.

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Sujiv0 — Sat, 24 Jan 2026 13:59:51 GMT

I'm checking whether any Bluetooth is shown in my android phone.

This (indiesemic.com/.../683ee380f6137a265ce71620) the module I'm using.

As of now, I installed only the nrf extension and SDK for Visual Studio Code.

Please enlighten me about nrfjprog or nrfutil

NB: I'm a newbie in the NRF world.

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Turbo J — Sat, 24 Jan 2026 13:25:47 GMT

How do you know? I am asking because even blinky sample won't run properly when the LF clock is messed up (like no crystal connected).

Did you try reading the flash with nrfjprog or nrfutil?

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Sujiv0 — Sat, 24 Jan 2026 05:18:03 GMT

Hi Einar Thorsrud , I'm using SWD1 port via P20 of nrf52 DK. SWD1_SELECT (VTG) Pin-3 is connected to VDD as per the Programming a board with custom connections.

Connected device shows as follows,

But when I flash the application, it shows

But nothing gets flashed to nrf52810 module.

RE: Not able to flash ISC-nRF52810-A using nrf52 DK (nrf52832)

Einar Thorsrud — Thu, 22 Jan 2026 12:35:52 GMT

Hi,

If the onboard device is programmet, there is a problem with the connection to the external board. The connections should be as shown in Programming an external board. I wonder if you have connected the SWD0_SELECT to ground? If not, the onboard debugger will debug/program the onboard nRF.

PS: The target board in you screen shows what you build for, but does not tell you anything about which device is being debugged.