PICkit 2 Error

P

pixman

Member

• Apr 7, 2011

• #1

Hi

I HAVE A PICKIT2 AND WHEN YOU START 'PICKIT2 PROGRAMMER' I GET AN ERROR.
PICKIT 2 VDD voltage error.
Check target & retry operation.
I GET THIS ERROR IF I AM NOT CONNECTED TO A CIRCUIT.
IF I TRY AND CALIBRATE THE VDD VOLTAGE I DOES NOT GIVE A VOLTAGE OUTPUT.
I HAVE TRIED IT ON 3 COMPUTERS ALREADY WITH THE SAME RESULT.
ONLY IF I SUPPLY THE CIRCUIT WITH EXTERNAL POWER DOES IT FIND THE PIC I AM USING. IN MPLAB IT ALSO COMES UP WITH ERRORS.

DAVID

 

lilimike

Member

• Apr 7, 2011

• #2

Are you using a dev board or breadboard? can you show your schematic?

Mike

 

P

pixman

Member

• Apr 7, 2011

• #3

Hi mike

the pickit is not connected anything.if i run the troubleshooting for pickit the first test fails.
Then in step3 "vdd short detected". Could it be something in the pickit the has been damaged.

David

 

T

thecritic

Member

• Apr 7, 2011

• #4

I couldn't understand everything you told, but I think the problem is you haven't powerd your circuit i.e. you need to supply ground to Vss and 5 V to Vdd of the PIC EXTERNALLY.
However there is option to power it from the PIC as well.

 

lilimike

Member

• Apr 7, 2011

• #5

Take a look at this page.

Mike

 

P

pixman

Member

• Apr 7, 2011

• #6

The problem is the pickit. It seems to be damaged. I found something on microchip forum that it could be a diode (d4) near the button that is damaged.
They say it is from overloading the pickit but at the same time the pickit has got protection against overloading and short circuit.
I will test it later and let you know.

 

be80be

Well-Known Member

• Apr 7, 2011

• #7

If D4 is is bad you wouldn't get power to the target.

 

lilimike

Member

• Apr 7, 2011

• #8

That is exactly the issue he is having.

pixman said:

ONLY IF I SUPPLY THE CIRCUIT WITH EXTERNAL POWER DOES IT FIND THE PIC I AM USING. IN MPLAB IT ALSO COMES UP WITH ERRORS.

DAVID

Click to expand...

Mike

 

Last edited: Apr 7, 2011

sanjubluerock3

New Member

• Apr 7, 2011

• #9

check if there is any short connection between vpp and ground....

please share your schematic here

 

Last edited: Apr 7, 2011

P

pixman

Member

• Apr 7, 2011

• #10

I got hold of the local microchip agent.
They told me to bring it in and they could do an exchange for me or repair it.

 

mvs sarma

Well-Known Member

• Apr 8, 2011

• #11

THAT is the right approach, pixman.
all the best