topic Re: overheating of microcontroller in MPC5xxx

overheating of microcontroller

akhilmalik — Wed, 30 Mar 2016 18:34:05 GMT

i am using microcontroller mpc5606b

i have the noticed that the chip becomes very hot when i connect it with the usb cable to laptop.

does it mean that the microcontroller is expired now.

Re: overheating of microcontroller

lukaszadrapa — Thu, 31 Mar 2016 04:21:19 GMT

Hi,

what kind of board do you have?

Yes, if the chip is hot, it can be damaged.

Regards,

Lukas

Re: overheating of microcontroller

akhilmalik — Thu, 31 Mar 2016 08:47:32 GMT

can you tell what would the reason that the board is damaged, means why the chip is getting hot now.

is there any method to recover it.

board is

Qorivva TRK-MPC5606B

Thanks

Re: overheating of microcontroller

lukaszadrapa — Fri, 01 Apr 2016 06:59:34 GMT

Hi,

did it work before? Could you take a photo of board, so I can see the jumper settings? Was anything connected to board?

Lukas

Re: overheating of microcontroller

akhilmalik — Fri, 01 Apr 2016 09:08:03 GMT

The board was just connected with computer via USB.

I hope image is visible,if not please do inform

Thanks

Re: overheating of microcontroller

akhilmalik — Mon, 04 Apr 2016 18:17:05 GMT

Please check it as early as possible.It will be highly obliged.

Waiting for your reply.

Thanks

Re: overheating of microcontroller

lukaszadrapa — Tue, 05 Apr 2016 06:00:24 GMT

Hi,

jumpers J19 and J20 should be set to position 2-3 (VSSA/VDDA). The schematic is universal for 5604B and 5605/6/7B. In case of 144pin package, the only difference is that pins 81 and 82 are used as GPIO on 5604B but there are VSSA/VDDA supply rails on 5605/6/7B. The jumpers are used for configuration.

The rest of jumpers is OK. I would just recommend to put the SBC chip into debug mode to avoid possible issues. Just move the jumper from J5 to J4.

Regards,

Lukas

Re: overheating of microcontroller

akhilmalik — Thu, 07 Apr 2016 18:06:44 GMT

The chip is still getting hot.

Is there any other alternative to recover it.

Re: overheating of microcontroller

akhilmalik — Fri, 15 Apr 2016 18:46:41 GMT

i am going to buy this microcontroller again .

could you please tell me why this one got expired ,why the chip got very hot.

please reply

thanks

Re: overheating of microcontroller

lukaszadrapa — Mon, 18 Apr 2016 06:03:42 GMT

Hi,

1. Set the jumpers as described above.

2. Follow standard ESD rules.

3. Be careful when external components are connected to the board. Keep external signals within current and voltage specs.

You shared too little details about previous usage of the board, so I'm not really able to say why the board has been damaged.

Regards,

Lukas

Re: overheating of microcontroller

akhilmalik — Mon, 18 Apr 2016 13:20:06 GMT

actually what happened

we were using the code of ADC by taking values of the potentiometer present on the board.

but the next day it didn't work and chip started getting hot .

we also don't know exact why this happened.

the board was connected with usb cable with laptop.

Re: overheating of microcontroller

lukaszadrapa — Tue, 19 Apr 2016 06:16:36 GMT

Well, this could be really caused by jumpers J19 and J20. Make sure the jumpers are configured correctly on your new board.

Lukas