topic Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI in Power Management

Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

GaneshBhagwat — Wed, 05 Aug 2026 12:53:06 GMT

Subject: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

Hi,

I am trying to configure and program the OTP on the FS2400 using the KITFS24SKTFDMEVM evaluation board.

Evaluation board:
https://www.nxp.com/design/design-center/development-boards-and-designs/KITFS24SKTFDMEVM

However, when I connect the board to the NXP GUI, I am unable to establish communication with the device. The GUI reports the error shown below, and no communication takes place.

I have previously used the same NXP GUI with the FS26 evaluation board without any issues, so I believe my PC setup and GUI installation are working correctly.

The evaluation board is in its default configuration, and I have not intentionally changed any jumper or switch settings. To verify, the current configuration is as follows:

S12 (OTP): OFF
J30: Pins 1-2 connected
SW4 (WAKE2): ON
S19 (WAKE3): ON
J33: Open
J37: Pins 2-3 connected
J36: Pins 2-3 connected
J10: Pins 2-3 connected
SW9: All switches ON
J45: Pins 2-3 connected
J26: Pins 5-6 and 9-10 connected
SW20: All switches OFF
S2: ON (I could not locate this switch in the schematic )
SW18: All switches ON
SW1 (Main Power Switch): Position 3 (2-3)

I have not programmed the S32K144 MCU on the evaluation board. My understanding is that the board is shipped with the required firmware already programmed. Could someone confirm whether this is correct, or whether the MCU needs to be flashed before the GUI can communicate with the FS2400?

Below is the error message displayed by the GUI:

Any help would be greatly appreciated.

Thank you.

Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

ErikaC — Wed, 05 Aug 2026 16:11:45 GMT

Hello,

Thank you for contacting us.

Could you please update the firmware according to Section 5, "Installing and Configuring Software and Tools," of the UM12015 KITFS24SKTFDMEVM User Manual? This procedure should resolve the error you are experiencing.

If the issue persists after completing the update, could you please provide a picture of your hardware setup? This will help us review the configuration and investigate the problem further.

Thanks!

Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

GaneshBhagwat — Mon, 10 Aug 2026 10:21:48 GMT

Hi @ErikaC ,

Thank you for your response.

I checked Section 5, “Installing and Configuring Software and Tools,” of the UM12015 KITFS24SKTFDMEVM User Manual. However, I am unable to find the KITFS2400FRDMEVM_HW_Test_Package_W20.zip file mentioned in the document.

Could you please let me know where I can download this .zip file? I need it to update the firmware as described in the manual.

I was able to find fs23xx-fw-FS24-v0.86.hex in the NXP GUI. Is this the firmware file that should be used for the update, or is it a different file included in the KITFS2400FRDMEVM_HW_Test_Package_W20.zip?

I also checked the link provided in the manual:
https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=S32DS-IDE-ARM-V2-XI downloaded and installed the executable from there (this was design studio but not the main S31244_Flash File), but I could not find the required .zip package.

Could you please provide the download location for KITFS2400FRDMEVM_HW_Test_Package_W20.zip, or let me know where I can find the correct firmware package needed to perform the update?

Thank you for your help.

Ganesh Bhagwat

Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

GaneshBhagwat — Mon, 10 Aug 2026 16:39:00 GMT

Hi @ErikaC

If fs23xx-fw-FS24-v0.86.hex is the correct firmware file, is there any specific procedure required to directly load/flash this .hex file to the KITFS24SKTFDMEVM, or is there a specific tool/setup that needs to be used?

If possible, it would also be greatly appreciated if you could provide the KITFS2400FRDMEVM_HW_Test_Package_W20.zip package or the download location for it, as this would make it much easier to follow the firmware update procedure described in the manual.

Thank you for your help.
Ganesh Bhagwat

Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

ErikaC — Mon, 10 Aug 2026 16:57:52 GMT

Hello,

I could not find the KITFS2400FRDMEVM_HW_Test_Package_W20.zip folder. It was likely included in an earlier version of NXPGUI. However, that package only contained the fs23xx-fw-FS24-v0.86.hex file, which is the only file required to program the firmware.

Please follow all the steps described in the UM12014 KITFS2400FRDMEVM User Manual. The use of a debugger is required, as shown in Figure 17, and you must also install the S32 Design Studio tool.

The firmware update procedure cannot be completed successfully without the required debugger connection and software environment described in the user manual.

Hope this helps!

Re: Unable to Communicate with FS2400 Using KITFS24SKTFDMEVM and NXP GUI

GaneshBhagwat — Tue, 11 Aug 2026 08:50:56 GMT

Hi @ErikaC ,

Thanks for this. It worked, and I am now able to communicate with the NXP-GUI.

The only issue was that these two settings were not present by default. As you mentioned, after adding them, everything worked.

The command added under Executable was:

${cross_prefix}gdb${cross_suffix}

Thanks again for your support.

Regards,
Ganesh Bhagwat