Codevision AVR: accessing the arbitrary eeprom address for write

Question

I have a device made with ATtiny861, programmed with CodeVision AVR ver. 2.60. I need to entirely erase the EEPROM (set it to FFs). From the documentation I copy and paste the following code:

int eeprom *eepromp;
// some code...
main( void ) {
// some code...
for( eepromp=0; eepromp<=0x01FF; eepromp++ )
  *eepromp = 0xFF;
// some code...

But the compiller gives me the following error: *Error: D:\work\projects\Radius(MPT)\control\code2\mpt.c(415): operand types 'eeprom int ' and 'int' are incompatible with the '<=' operator

Documentation can be found at the address: https://instruct1.cit.cornell.edu/courses/ee476/codevisionC/cvavrman.pdf The page containing the example: 84

Some programmer dude · Accepted Answer · 2014-01-15 11:55:31Z

1

The error message says that you can't compare eeprom int (the type of the eepromp variable) and plain int (the type of the literal 0x1ff).

Either cast eepromp or the integer literal to the others type, or have an int eeprom variable with the end address that you compare to.

answered Jan 15, 2014 at 11:55

Some programmer dude

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1 Comment

Roman Matveev Over a year ago

Thanks, @Joachim! It worked!!! Now the code in 'for' section is for( eepromp=0; eepromp<=(int eeprom*)0x01FF; eepromp++ )

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