How to write value 300 to eeprom ?

gopi · Joined: 23 May 2015 Posts: 4 Location: chennai

Good morning..

I have PIC 16f877a. Now i write the value 300 in this pic EEPROM
I am using following Syntax its only store the value 0 to 255.
so Pls Guid to store the value of 300 in this pic eeprom.

write_eeprom (0x00,300);
i=read_eeprom (0x00);

asmboy · Joined: 20 Nov 2007 Posts: 2128 Location: albany ny

you need to write a WORD

in 2 bytes of EEPROM

see the MAKE8() function

Ttelmah · Joined: 11 Mar 2010 Posts: 19554

As a further comment, try reading the manual.....

Section:

"How do I write variables to EEPROM that are not a byte?" and the example this links to.

jeremiah · Joined: 20 Jul 2010 Posts: 1358

I gave you an answer in your duplicate thread as well:

https://www.ccsinfo.com/forum/viewtopic.php?t=53948

gopi · Joined: 23 May 2015 Posts: 4 Location: chennai

I have use to print above 255 value in PIC 16f877a eeprom.
syntax:

write_program_eeprom(address,data);
value=read_program_eeprom(address);
its work correctly.

gopi · Joined: 23 May 2015 Posts: 4 Location: chennai

How to store string in PIC 16f877a eeprom.

Pls send the syntax.

temtronic · Posted: Tue May 26, 2015 10:34 am

Simply create a function to compute the length of the string and then store each byte of the string until you get to the 'end of string' character which is a null (0).
I leave it to you to look at the string functions CCS supplies as I assume this is a school project as the 877 is, well, obsolete !

Jay