avr programming in AVR Studio and CodeVision

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ghoola

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how can I change this AVR studio code to Codevision code?
Code: 
 SPCR = _BV(SPE)|_BV(MSTR)|_BV(SPR1)|_BV(SPR0)
 

The definition of _BV is

Code: 
#define _BV(bit) (1 << (bit))

so basically your code is

Code: 
SPCR = (1<<SPE) | (1<<MSTR) | (1<<SPR1) | (1<<SPR0);

If the SPE,MSTR,SPR1 and SPR0 bits are not defined in codevision then check the datasheet and either add the definitions or replace them with numbers.
 

The datasheet lists all the registers and the names of each bit of the register

The register you refer to is



So if the definition don't exist in codevision you can either add them or replace the bit names with the bit number
 

I would expect the register names to be already defined.

You can try to compile your code, if any name if undefined you will get an error and then you can fix it.
You can also check the content of the header that codevision attaches in the project (the specific mcu model defines).
 
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    ghoola

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In version 2.03.9 there is only

Code: 
sfrb SPCR=0xd;

The bit definitions got added in newer versions, like 2.6 or 3.x
 

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