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Today a new pickit 3 arrived by post and I've tried to program the same 12F1822 chips with it. And they worked.

Seems like my icd-64 is not able to program the 12f1822 configuration words.
Althoug ...

You are absolutely right.

The pin 1 dots size are different also because somebody probably have put them down, label first on a belt sender to clear off the old labels. Even the sanding traces are ...

these are the chips i use with no luck

https://www.dropbox.com/s/uqknfc76ha949go/WIN_20170511_11_18_40_Pro.jpg?dl=0

when i read the programmed chip, i see the code but the config is wrong. so the config is not being programmed.

yes i mean 12F1822, typing mistake.

I didn't know there were "forged pics&quo ...

The configuration/ID part of the ccs device programmer is always 3FF8.

I've erased the chip, then read the contents, the conf is 3FF8.

Programmed it with the above simple code, the conf is 3FF8. ...

Can this mean i need a new ICD or something like pickit3 etc?

I'll try to erase the chip and recheck the config bits first thing in the morning. The fuses at the bottom of the LST file are

Configuration Fuses:
Word 1: 2984 INTRC_IO NOWDT PUT NOMCLR NOP ...

To program I'm removing the chip from the board onto another breadboard with the programming and power pins attached to the chip from the ICD. Power is also supplied by the icd during programming wit ...

Yes the issue is probably something like that. I've read the chip and my config word is 3FF8.

Compiling the code on ccs ide. Not using mplab.

I'm using CCS device programmer 5.041 and an ICD-64 ...

I've inserted a 5.1v zener cathode on the mclr pin, anode on ground to prevent higher voltages on mclr but it runs the same. But if i replace the controller with a 12f683 and use the code below (which ...

Thanks for the quick reply. Although it is missing at the schematic, there is a 470 ohm resistor in series with the led at the actual circuit. And brownout is also disabled on the fuses.

https://ww ...

Hello All,

I've searched the forum for the answer with no luck. On the net I've found some other posts from people who experience the same problem. But I didn't find the solution yet.

I'm using ...

Hello,

I'm trying to solve the same issue, did you manage to solve this?

isn't there a sample circuit and code anywhere that works which we can all download and use as a start?

Smile

Thanks Thelmah, this solved it.

Thanks for the reply,

The program is absolutely same as yours. I just changed the output pin. A6 and A7, didn't change anything. Other pins are okay. Only the oscillator pins don't blink the led. I ...