topic Re: DEVKIT-MPC5744P SB_RSTb in MPC5xxx

DEVKIT-MPC5744P SB_RSTb

236 — Tue, 19 Mar 2024 07:15:43 GMT

I have a problem to use external 12v.

When I input 12v, then the SB_RSTb indicator is turned on with little noise sound.

I think it's because of wrong connection between pins.

Now i disconnect them, but it was still indicating SB_RSTb.

I need some guide to solve the trouble.

Re: DEVKIT-MPC5744P SB_RSTb

petervlna — Wed, 20 Mar 2024 08:46:49 GMT

Hello,

When I input 12v, then the SB_RSTb indicator is turned on with little noise sound.

It means your device is held in reset.

Are you able to connect via JTAG?

Did you followed quick start guide?

https://www.nxp.com/document/guide/getting-started-with-the-devkit-mpc5744p:NGS-DEVKIT-MPC5744P

Best regards,

Peter

Re: DEVKIT-MPC5744P SB_RSTb

236 — Fri, 22 Mar 2024 00:41:02 GMT

Thanks, Peter.

Do i need to update firmware?

I've never used JTAG before.

So... may i get your guide about tools or something?

Re: DEVKIT-MPC5744P SB_RSTb

petervlna — Fri, 22 Mar 2024 07:56:54 GMT

Hello,

I am now confused.

So how do you update the code in micro?

Did you programmed anything into micro?

I am not sure if there is any guide regarding tools, there will be one for each from each vendor.

https://community.nxp.com/t5/S32-Design-Studio-Knowledge-Base/S32DS-list-of-HOWTOs/ta-p/1113475

best regards,

Peter

Re: DEVKIT-MPC5744P SB_RSTb

236 — Mon, 25 Mar 2024 02:57:39 GMT

I'm sorry. I misunderstood your previous reply.

I used micro USB to update the code.

I thought JTAG in your answer is about J11.

Anyways, i can connect via JTAG, then how can i solve this problem?

Re: DEVKIT-MPC5744P SB_RSTb

236 — Mon, 25 Mar 2024 03:00:21 GMT

Together, I did powering selection settings(J44,J45,J43) to External 12V Power Supply.

Re: DEVKIT-MPC5744P SB_RSTb

petervlna — Wed, 27 Mar 2024 08:02:54 GMT

Hello,

Ok, once you connect with JTAG, is the reset released and you can debug the code?

Or is the connection not established because reset is still active?

Best regards,

Peter

Re: DEVKIT-MPC5744P SB_RSTb

236 — Thu, 28 Mar 2024 06:26:53 GMT

The connection not established because reset is still active.

Re: DEVKIT-MPC5744P SB_RSTb

petervlna — Wed, 03 Apr 2024 09:46:03 GMT

Hello,

Hmm, reset should be released once stable voltages are provided.

Can you check whether the voltages are in datasheet specified range? Just to be sure you didn't burn the board. There should be no issue if the jumpers are placed correctly.

petervlna_0-1712137543551.png

Best regards,

Peter