16F876 - Initialized array in code memory at fixed address

[fl0rin]

array fixed address

Hi everyone,

I am using Microchip PIC16F876 uC and the Hi-Tech PICC compiler in a project. I need a way to store an array in the code memory at an absolute address. Now I know this could be done using @ operator, but it seems it doesn't to work with arrays which are also initialized when declared. To be more specific:

// this is an initialized arrray stored in code memory
const unsigned char const array[5] = {0x00, 0x11, 0x22, 0x33, 0x44};

// here's what I need, but it's not supported
const unsigned char const array[5] @ 0x1E00 = {0x00, 0x11, 0x22, 0x33, 0x44};

Any suggestion will be appreciated. Thanks.

 

[yager]

const array in hi-tech compiler at fixed address

You can use #pragma psect directive to assign a new section then add an additional option with linker.
ex: add this into your C source code:

#pragma psect const%%u=myconst
const unsigned char array[5] = {0x00, 0x11, 0x22, 0x33, 0x44};

add this in linker's command-line option:

-L-pmyconst=1E00h