Configuration Bit setting

[swapan]

Friends,
I am a newbie in Microcontroller programming. I use MPLAB_IDE_8_36 for developing program. When a new project is created, there are some default configuration bit settings in the code. I like to change the config bit settings to protect the code. I changed the default "_CP_OFF" to "_CP_ON". After building the project an error is detected as "previously not defined _CP_ON". But building with default config settings i.e. _CP_OFF, the build is successful. Please guide me how to change the config bits in the code. Thanks.

swapan

 

[Nigel Goodwin]

I would VERY strongly suggest you don't set code protection, particularly during program development - there's really no point.

The only time you would use code protection is when the project is fully finallised, and you're selling complete units or pre-programmed chips.

 

[swapan]

Thanks Mr. Goodwin for your suggestion not to use code protection while developing program. Being a hobbyist I have no intention to sell anything. But what is the system of changing the config bit in question?

swapan

 

[Nigel Goodwin]

As you have no intention of selling, then drop the idea of code protection - but if you insist (and you'll almost certainly be sorry) lookup 'config__' (two underscores) in the help file.