FS2400 NXP GUI interface

[shreya_01]

Hello team,

I am using an FS2400 for a vehicle ECU and was working on the NXP GUI to program the OTP onto my FS2400.

My question is whether do we require to program the bits under the ACCESS tab through SPI after OTP programming is done or can we do it along with the OTP programming ? If yes, how in the GUI can I write into these bits so that its reflected in the SBC after exiting OTP mode?

Thanks,

Shreya

FS24 KITFS2400FRDMEVM 

[TomasVaverka]

Hello Shreya,

The ACCESS-tab bits are SPI-register settings, not OTP fuse settings, so they are not automatically programmed together with the OTP configuration.

After completing the OTP programming, restart the device and enter User mode. In the GUI, go to ACCESS → Register Map, select the required register, set the bit fields or hexadecimal value, click Write and then click Read to verify the result.

Please be aware that Write INIT Safety registers must be configured during the INIT phase, before the first valid watchdog refresh. For the production ECU, the required ACCESS-register writes should be performed by the MCU during startup, since these settings are not permanently stored in OTP.

BRs, Tomas