Problems using MPLAB ICD 2,got error ICDwarn0020.what is it?

mplab icdwarn0020

What is this error about?


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the self-test pass but i got this error about device id not matching

what kind of error is it?[/url]

mplab target vdd vpp icd 2

Hi,
Check your cable continuity and cable length.

CD

mplab icd2 vpp too low

Also check the modular socket. I read somewhere that the angle of pins inside the socket may become too flat with respect to the socket base. Use a sharp item like needle to correct it. Just pay extreme care not to break the pin by bent it too hard.

mplab icd 2 vdd target

The self-test only checks if the VDD/VPP outputs are correct.
It's normal to get this error when the ICD2 is not connected to any chip.
If it is, you have to ensure that the programming pins are properly connected. Are you using a commercial icd2/dev board or a diy one?

mplab icd 2 matching device id

ICD2 reports target 0x00 when either you have no device attached or it can't be succesfully read.

Check if you have the target attached right (duh). If the answer is "Yes", select any .HEX file, launch a device programming, so check the VDD and VPP voltages, that must be 5V and 13V respectively (measure them as programmer is running).

If both voltages are OK maybe there's some mistake around PGC and PGD driving circuitry.

If VDD is wrong, you have to power the target from either ICD2 or the own target supply. In order to power the target from the ICD2 you must select the checkbox placed at: programmer/settings/power/power_target_circuit_ from_MPLAB_ICD2, and turn the target supply off.

If VPP is wrong check the VPP voltage reported by the ICD2 window. I detected that ICD2 pass the VPP test even when this voltage is as low as 6.5 volts, what isn't really ok.