MCSP ICD does not work

[mister_e]

Is this possible to see your whole code?

Probably DEBUG won't work, ICD assume you use the internal USART

Do the sample test on the following Bruce's tutorial
http://www.rentron.com/PicBasic/MCS_X3.htm

Hardware must match as well.

[ardhuru]

Steve, I just did that; copy-pasted Bruce's code, with the same results;

BTW, I am using a TTL inverter in place of a 'real' level shifter; could this be an issue? But then I can send data out to a terminal over the same com port I otherwise am trying to use for ICD, so I guess not. Right?

Still lost...

Anand

[mister_e]

Not sure if i understand correctly, but in case you want to send serial data, you can't use the same port with another terminal software. As far as i remember of, MCSP ICD have a dedicated windows for that.... been long long time i didn't used it...

Did you tried with 4 and 20MHz osc?

Are you sure the COM port selected in the top menu match the one you plan to use?

[ardhuru]

Sorry, that was misleading; the serial data is being sent to the PC just for checking the hardware; while doing the ICD compile, I rem out the debug statements and close the terminal before running ICD.

I am using the internal oscillator, so I presume the default would be 4 MHz.

Yes, I've defined the right com port.

[mister_e]

Out of curiosity.. are you using a USB-To-Serial adapter? If so did you tried on COM<16?

[ardhuru]

No, a proper com port on my motherboard.

But guess what... a decoupling cap on the breadboard solved the problem. Even as I type, the ICD is chugging away happily.

I thought my supply was well filtered; didnt find the need for an extra cap on the breadboard before; just goes to show how crucial it is, I guess.

Thanks for the help, Steve.

Anand

[mister_e]

those mandatory cap!

I asked about the USB-To-Serial because i tried with one here... and it refused to work. It begun to work when i set it to COM9 or lower. Good enough for the records i guess

But it happen on my machine... maybe not on others... my machine behave in unique way sometimes