topic Re: SAC57D54HCVLTR cannot be flashed on the first time in Other NXP Products

SAC57D54HCVLTR cannot be flashed on the first time

johnkevintoral — Fri, 21 Jul 2023 11:27:53 GMT

Hello,

I have made a custom board with SAC57D54HCVLTR 208-pin MCU; however, the first time it is powered, it is in the reset state, is this normal?

And I have tried to flash it using S32DS for Arm, but it is not working. The IDE says 'cannot communicate with the board'. I have been using its eval board for the past 2 years, the MAC57D54MB but with the BGA version of the said MCU, and I assure all settings in the IDE are correct.

I have checked the schematics and PCB, and it is all well. I use JTAG, btw.

Any ideas on how to load the MCU for the first time would greatly help.

Thank you.

Re: SAC57D54HCVLTR cannot be flashed on the first time

Bio_TICFSL — Fri, 21 Jul 2023 14:04:36 GMT

Hello,

You must check the fuses or the Switches to stay in flash to program then to run, you can program this with JTAG as well.

This product is out of support please check it replacement:

https://www.nxp.com/design/development-boards/i-mx-evaluation-and-development-boards/i-mx-rt595-evaluation-kit:MIMXRT595-EVK

Regards

Re: SAC57D54HCVLTR cannot be flashed on the first time

johnkevintoral — Fri, 21 Jul 2023 14:42:04 GMT

Hi Bio_TICFSL,

I have checked all switches and power supply, and they are fine. My first question was the MCU supposed to be in a reset state upon first powering up? thanks

Re: SAC57D54HCVLTR cannot be flashed on the first time

Bio_TICFSL — Fri, 21 Jul 2023 18:47:30 GMT

yes

Re: SAC57D54HCVLTR cannot be flashed on the first time

johnkevintoral — Mon, 24 Jul 2023 14:53:06 GMT

Hi,

It seems to me that the current state is the Powerup phase where the MCU is stuck. I have checked all power supplies with 1.2V and 3.3V which are all okay. Anyone with same experience?? what could possibly be the reason for this? thanks

Re: SAC57D54HCVLTR cannot be flashed on the first time

johnkevintoral — Mon, 31 Jul 2023 12:05:14 GMT

I found a mistake in my custom board where the 2 external clocks are far enough from the MCU. Will definitely fix this. Will update soon.

Thanks.