What is Pic Hex File Format?

[poojarai]

How can i compare two pic hex file? Does Hex file contain RAM and ROM size?

 

[maxim10373]

https://www.google.co.in/url?sa=t&r...Ovm8LxPAjM0hqaA&bvm=bv.69411363,d.c2E&cad=rja

 

[embpic]

normally hex file format is same. which contains all hex formatted data.

 

[poojarai]

Thanks maxim10373 and embpic for your reply. Empic ,I know normal hex file format but i didn't understand how to compare two hex file . I had seen two hex files both were different .Can anyone tell me the main point by which i can compare them?

 

[jpanhalt]

Is this what you are looking for: https://www.lucidtechnologies.info/inhx8m.htm

Microchip's hex code format is a version of the Intel hex format. This link covers the 18F and 16F devices specifically: https://www.kanda.com/blog/microcontrollers/pic-microcontrollers/pic-hex-file-format/

John

 

[deepeshmishra]

HEX file formate is formate of language which is understood by machine.

 

[FvM]

I know normal hex file format but i didn't understand how to compare two hex file . I had seen two hex files both were different .Can anyone tell me the main point by which i can compare them?

Different hex files can possibly have identical content, so you'll convert it to a binary image to see the actual differences. If the hex files show different data for the same address, you can be sure that they are actually different.

The more important question is how you can understand the content of a hex file. Usually you'll disassemble the code to analyze the content.

Referring to your original question, you can easily see the ROM address range that is written by a hex file, in so far you can determine the required ROM/FLASH size. Used RAM range can be only determined by analyzing the code.