How program PIC24 with ICD2 (no clone)

[traus]

Hi,
i have some problems regarding PIC24FJ32GB002 programming (and debug) with ICD2. I've used Mplab 8.63 and this schematic

**broken link removed**

During programming, this pic is recognized: but a fail-salf test appears. These are obtained values:
Target Vdd High
Module Vpp High
MCLR Gnd Pass
MCLD Vdd High
MCLR Vpp High
In Settings->Power i have these voltages:
Target Vdd 3.75
Target Vpp 3.43
MPLAB ICD2 Vpp 12.94

What's wrong?
thanks in advance

 

[keith1200rs]

It looks like something is wrong with your 3.3V supply on your board. It should not be as high as 3.75V. Check it with a multimeter.

Keith.

 

[traus]

With a multimeter i measure 3.7V, so value displayed in mplab is correct. I'll try to correct to 3.3V

 

[traus]

Thanks for your answer: with a correct Vdd i'm able to program...my firmware works good! I have now another problem: i'm not able to debug. During programming, i see an ICD0083 error: Debug: Unable to enter debug mode. What's wrong?
thanks in advance

 

[keith1200rs]

Does any of this help:

From the MPLAB IDE online help for ICD2

General Debug Failure Actions
The MPLAB ICD 2 was unable to perform a debugging operation. There are numerous reasons why this might occur.

Top Ten Reasons Why You Can't Debug
# The oscillator is not working. Check your configuration bits setting for the oscillator.
# The target board is not powered. Check the power cable connection.
# The MPLAB ICD 2 has somehow become physically disconnected from the PC. Check the USB or COM communication cable connection.
# The MPLAB ICD 2 has somehow become physically disconnected from the target board. Check the communications cable connection.
# The device is code-protected. Check your configuration bits setting for code protection.
# MPLAB ICD 2 is selected as a programmer, and not as a debugger, in MPLAB IDE.
# MPLAB ICD 2 to PC communications has somehow been interrupted. Reconnect to the ICD in MPLAB IDE.
# The target application has somehow become corrupted. Try rebuilding and reprogramming the target application. Then initiate a power-on-reset of the target.
# Other configuration settings are interferring with debugging. Any configuration setting that would prevent the target from executing code will also prevent the ICD from putting the code into debug mode.
# MPLAB ICD 2 cannot always perform the action requested. For example, the ICD cannot set a breakpoint if the target application is currently running.

Other Things to Consider
# It is possible the error was a one-time glitch. Try the operation again.
# There may be a problem programming in general. As a test, switch to programmer mode and program the target with the simplest application possible (e.g., a program to blink an LED.) If the program will not run, then you know that something is wrong with the target setup.
# It is possible that the target device has been damaged in some way (e.g., over current.) Development environments are notoriously hostile to components. Consider trying another target device.
# Microchip Technology Inc. offers myriad demonstration boards to support most of its microcontrollers. Consider using one of these applications, which are known to work, to verify correct MPLAB ICD 2 functionality.
# Review the operational theory of ICD operation to ensure proper application setup.
# If the problem persists contact Microchip.

Keith

 

[FvM]

To add another point, PIC24 has three alternative ISP ports, they all work for programming, but for debugging, you can only use the port assigned in the configuration fuses.