how to access memory location in embedded c?

[hiren_dave]

hi.

i want to know that how to access memory location in embedded c?

i have 1 register a and i want to store this in memory location 0x501 than how should i defined??

 

[internetuser2k12]

Do you mean writing to eeprom? Which mcu are you using?

 

[hiren_dave]

m writing in RAM..
i m using pic18f4550...

 

[horace1]

you could try

     unsigned char *ptr=0x501;
     *ptr=20;

 

[internetuser2k12]

Are you writing 8-bits?

I think you can write like

unsigned char *ptr = 0x501;

*ptr = ADCON0;

writing ADCON0 register to address 0x501.

 

[hiren_dave]

thanks for your help...

but i can't save data in ram.

 

[Kurenai_ryu]

mmm i think you need to define which memory is it...
0x501 for a 8051 seems external ram so you should define your pointer as xdata...