S32KのトピックRe: S32K144EVB D3(Diode) Error

S32K144EVB D3(Diode) Error

gksn284 — Sat, 24 Sep 2022 03:16:32 GMT

D3 Diode and RGB LED are turn off.

D1 Diode(near the reset button) is turn on(green and no blink)

2.jpg

I tried updating the Bootloader Mode.

But I don't know what is the problem.

I have a Universal Multilink FX High-Speed Development Interface.

Please somebody help me!

Re: S32K144EVB D3(Diode) Error

Senlent — Mon, 26 Sep 2022 01:39:58 GMT

Hi@gksn284

If D3 is not turned on ，it measn there may be a problem with your power supply.

Senlent_0-1664155579289.png

You can try to use external 12V power supply，this might be useful, and don't forget the J107 should be changed to 1-2.

Re: S32K144EVB D3(Diode) Error

gksn284 — Mon, 26 Sep 2022 07:48:41 GMT

First, Thank you for your answer!

As you said, I connected the 12V power supply.

But there's no light, there's only heat. (I am aware that J107 should be changed to 1-2)

So I measured the voltage myself. (J107 : 2-3, microusb cable)

KakaoTalk_20220926_163728887_02.jpg

↑J107 : 2-3 unpluged

KakaoTalk_20220926_163728887_01.jpg

↑J107 : 2-3 pluged

KakaoTalk_20220926_163728887.jpg

↑ TP9's voltage

I think there's a reason why the voltage drops as it connects.

Do you have any guesses?

Re: S32K144EVB D3(Diode) Error

Senlent — Mon, 26 Sep 2022 08:03:24 GMT

Hi@gksn284

Do you know which specific heating chip is? Is it U15? According to the measurement results, there should be no problem with P5V_SBC. It is very likely that there is a problem with the U15. This is my guess.

Re: S32K144EVB D3(Diode) Error

gksn284 — Mon, 26 Sep 2022 11:11:55 GMT

There is heating near the power connection. (12V)

If there is a problem with u15, can I fix it myself?

Or Should I go to the repair shop?

14.PNG

Re: S32K144EVB D3(Diode) Error

Senlent — Tue, 27 Sep 2022 01:30:39 GMT

Hi@gksn284

If there is a problem with the U15, you can only replace this chip, it is not easy to repair.