ICD-U40 debugger problem [solved]

[TL]

Hi, I have the following:

PCWH: V3.249
ICD-U40: firmware V2.62, hardware Rev 4
CCSLOAD: V4.022

I have programmed a hex file into the target (PIC18F2620) using CCSLOAD successfully. However, when I tried to use the debugger in PCWH, I got the following error message:

"Could not start target: The target was not halted after reset. Check the target oscillator and MCLR. Make sure the target clock match the clock fuse and that the target is oscillating. Use View | Valid fuses to find the correct clock fuse."

I have checked the target which uses a 4MHz resonator and therefore selected "XT" fuse setting in my C program.

Also, I have an ICD-S40 (serial) and this programs hex files onto the same target using CCSLOAD and operates the debugger in PCWH without any programs. This shows that the target clock is working and matches the program fuse setting "XT".

Can someone please explain why I'm getting the above error message? Thank you.

[TL]

Sorry, the second last paragraph should read:

Also, I have an ICD-S40 (serial) and this programs hex files onto the same target using CCSLOAD and operates the debugger in PCWH without any problems. This shows that the target clock is working and matches the program fuse setting "XT".

[TL]

Hi,

I have found the cause of the problem. There was a 0.1uF decoupling capacitor on the MCLR pin. When I removed it, the ICD works for programming and as a debugger within PCWH.

[Jim Lai]

I use internal clock, 1MHz, here is my configuration:

#include <18f4320.h>
#device ICD=TRUE
#fuses HS, INTRC_IO, NOLVP, NOWDT
#use delay(internal=1Mhz)

I have tried with capacitors: 0nF, 10nF, both don't work. any suggestions?

[Jim Lai]

by the way, I use ICD-U64, bought two weeks ago,
software: 4.026
Firmware: 2.85
Hardware: Rev.2

There are no problems to load codes into the target PIC.

[PCM programmer]

[Jim Lai]

Thanks PCM Programmer! I have removed HS, the error is still there.
I have used the ccsload 'diagnostics':

Debugger Test

FAIL - A test program was loaded however the debugger would not start. The most likely cause is the wrong oscillator selection.

Details: Could not start target: the target was not halted after reset Check the target oscillator and MCLR. Make sure the target clock match the clock fuse and that the target is oscillation. Use View | Valid fuses to find the correct clock fuse.

By the way, my configuration can run in Dev. kit from ccs pic18F8722, but can't run in my pcb (target pic18F4322)!
Please help!
Thanks
Jim

[PCM programmer]