Help on IDAP-Link

[David (GrinPass)]

Hello!

I know IDAP-Link is not a product from Nordic, so maybe this is not the place to ask this, but...

I have to develop firmware for a custom board based nRF52 that has been desgined to work with 1.8V (it has an LTE modem that works at 1.8V). The hardware team states that they only know how to debug/program the board with the IDAP-Link, but when I search for this tool, I see it's old and there's no much support. The program cable I have been supplied has only 4 wires: TVcc, GND, SWDIO and SWCLK. When I connect to the console of the IDAP-Link, I get:

IDAP-Link/M : S/N : 6030423000058 - Firmware : 1.6.181013

Target set : nRF52


Target device not detected. Exiting console mode
FAILED: Flash loader initialization
FAILED: Flash loader initialization
FAILED: Flash loader initialization
FAILED: Flash loader initialization
FAILED: Flash loader initialization
FAILED: Flash loader initialization
FAILED: Flash loader initialization

My questions:

1. Does anyone know what problem is this message about?

2. Is there a better way to work with 1.8V in a nRF52?

Thank you so much!

David.

[Håkon Alseth]

Hi,

 

Have you checked if your debugger is 1.8V capable? It looks like it is only 3.3V capable.

2. Is there a better way to work with 1.8V in a nRF52?

You can use a segger base debug probe, which has a wider voltage range:

https://www.segger.com/products/debug-probes/j-link/models/j-link-base/

 

Kind regards,

Håkon

[David (GrinPass)]

Thank you for your reply, Häkon. Just let me check the Segger probe and I will update here.

[Håkon Alseth]

Hi,

 

That sounds good. Let me know if you run into any issues!

 

Kind regards,

Håkon

[Nguyen Hoan Hoang]

The IDAP-Link has builtin level shifter supporting 1.8v-3.6v.  Is your board powered on ? Pin 1 should connect to you 1.8v source if you are not using the ARM SWD connector.