PIC16F690 substitute

[abuhafss]

Hi

I have very very limited experience of PICs. I want to make this LC meter, which is based on PIC16F690

https://4.bp.blogspot.com/-UTJRPDXT...AAAAYE/PwrMrld2CuM/s1600/LCM3+%28schem%29.png

Unfortunately, PIC16F690 is not available in my area. Which other PIC would be the best substitute for this particular project?

**broken link removed**

And do I have to make changes in the code to use some other PIC instead of PIC16F690?

 

[Kripton2035]

you can use almost any pic16 with 20 pins
if you have a source code in high level language C pascal basic, just compile again with the right pic ref at the beginning
if it is in assembly language, it will be harder to change, but it's feasible.

 

[abuhafss]

Thanks for the response.

Will there be a problem if PIC reference is not changed in the source code?
I only have the hex file.

 

[wp100]

Hi


I have very very limited experience of PICs. I want to make this LC meter, which is based on PIC16F690

https://4.bp.blogspot.com/-UTJRPDXT...AAAAYE/PwrMrld2CuM/s1600/LCM3+%28schem%29.png

Unfortunately, PIC16F690 is not available in my area. Which other PIC would be the best substitute for this particular project?

**broken link removed**

And do I have to make changes in the code to use some other PIC instead of PIC16F690?

Hi,


Yes its a good looking project and is mentioned on other web sites so seems a sound project for a change

Unless I missed it on those web sites the program source code is not available, he is only giving out the .hex file for burning into the chip.
You usually need the source code to change some parameters to allow you to use other chips.

The chance of using a different chip is very remote as any slight difference could cause the burn to fail or the program to run incorrectly.

Its a quiet an old chip and generally readily available; plenty on Ebay if or if you can order from abroad ??

 

[Kripton2035]

Will there be a problem if PIC reference is not changed in the source code?
I only have the hex file.

if you only have the hex file, it's like you have the asm file, and more than that you have to disassemble the hex file to produce an asm without any comment on it ...
harder than commented source asm file, still feasible.
it would be far easier to find the right chip on ebay at this point... as the other poster said there are plenty out there !