Hello. I have a custom board which contains S32K148 MCU and Murata MBN52832 BLE Module and several other modules like GPS, LTE etc. Board is powered via external 12 V adapter but through voltage regulators modules are powered with 3.3V.
I am using SEGGER Embedded Studio as IDE.
I am trying to program MBN52832 module through its SWD pins using NRF52DK's P20 pins and pin connections goes like this:
P20.SWDIO ----> Custom Board SWDIO
P20.SWCLK ----> Custom Board SWCLK
P20.VTG ----> P20.VDD (To activate external flashing)
P20.GND Detect ----> Custom Board GND ( Custom board and NRF52DK have common grounds on a breadboard )
Now the problem is when I try to flash my code into custom PCB I get the following error.
"Failed to connect to target. No idcode detected. Please check connection and Target Interface Type."
I have read almost every post about external programming on here DevZone but the suggested solutions on other posts did not work for my problem.
I double-checked the board for soldering problems etc.
Application works fine on NRF52DK's internal NRF52832 SoC so I do not think it's a software based problem.
I'd appreciate any suggestion regarding this matter. Thanks in advance.
Best regards,
Furkan
