Dspic33f device id not matching

[span]

Hi

I am using dspic33f with PICKIT3 and getting following error

PICkit 3 detected
Connecting to PICkit 3...
Firmware Suite Version...... 01.25.14
Firmware type......................dsPIC33F/24F/24H
PICkit 3 Connected.
Target Device ID (00000000) does not match expected Device
ID (00bf0000).

I checked with the 5 dspic33f microcontrollers and all giving same problem.

Appreciate any help.......

 

[john blue]

Did you connect the ICSP correctly?

 

[span]

Hi

Connections are all correct.......
i used same microcontroller with pickit3 long back and it worked fine
now it gives some problem........
whether controller gone bad or pickit3 gone bad.....?

 

[Tahmid]

Hi,
Usually this is because of incorrect or inappropriate connection between the programmer and the device. However you seem sure it's fine.
What is the pull-up resistance of the resistor from MCLR? It might be too low, thus causing this problem. Change it to 10k. I've seen some people have this problem just due to the resistance.

Hope this helps.
Tahmid.

 

[span]

Hi Tahmid

I have changed the pull resistor value from 0 to 10k.
still problem exit.

 

[Tahmid]

In that case, I recommend you go through these:
**broken link removed**
**broken link removed**
http://www.piclist.com/techref/postbot.asp?by=thread&id=+Wrong+Device+ID+for+PIC18F87J50+-+0x0000&w=body&tgt=post]Wrong Device ID
**broken link removed**

Hope this helps.
Tahmid.

 

[span]

I have checked in new board ,there device id matched and also noted one thing
NEW BOARD VALUE(working)
VPP=3.27V,VDD=3.27V,PGD=0.4V,PGC=0.4V
OLD BOARD VALUE(Not working)
VPP=3.27V,VDD=3.27V,PGD=0.4V,PGC=3.2V

PGC Value is different....?
Why...?

 

[ismu]

Hi,
Usually this is because of incorrect or inappropriate connection between the programmer and the device. However you seem sure it's fine.
What is the pull-up resistance of the resistor from MCLR? It might be too low, thus causing this problem. Change it to 10k. I've seen some people have this problem just due to the resistance.

Hope this helps.
Tahmid.

hi thamid

for this dspic i can see two ID number
1-DEVID
2-UNITID
my doubt is , which one amoung this diff value for each chip with same series [ex: dsPIC30F2010]?

or please help for this:

 

[ayurkewi]

Hello,

I just had the same problem (target device ID does not match the expected device ID). I was using the dspic33F. I had not added a 10uF capacitor between Vcap and ground although it said to in the datasheet. Once I did that everything worked fine.

Good luck!

Aaron