AVR-Chat

Ah, thank you.  That did it.  Steve

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of wagnerj@proaxis.com
Sent: Wednesday, December 29, 2010 11:46 AM
To: AVR-Chat@yahoogroups.com
Subject: RE: [AVR-Chat] Re: WinAvr TWI include files

 

  

There is no TXEN in a 644. It is TXEN0 or TXEN1.

Jim Wagner
Oregon Research Electronics

> Don, I think I have those things correctly. Here are the include files
> (in
> order):
>
>
>
> #include <inttypes.h>
>
> #include <stdio.h>
>
> #include <stdlib.h>
>
> #include <avr/io.h>
>
>
>
> and here is the compile line generated and the first few error messages:
>
>
>
> avr-gcc -I"C:\Program Files\WinAVR\avr\include\avr" -I"C:\Program
> Files\WinAVR\avr\include\util" -mmcu=atmega644p -Wall -gdwarf-2 -Os
> -std=gnu99 -funsigned-char -funsigned-bitfields -fpack-struct
> -fshort-enums
> -MD -MP -MT I2C.o -MF dep/I2C.o.d -c ../I2C
>
> .c
>
>
>
> ../I2C.c: In function 'ioinit':
>
> ../I2C.c:106: error: 'TXEN' undeclared (first use in this function)
>
> ../I2C.c:106: error: (Each undeclared identifier is reported only once
>
> .........
>
>
>
> Roger on the reason for the other twi.h files. Does that mean I can
> delete
> those other include directories if I know I'll never need to go backwards?
>
>
>
> Steve
>
>
>
> From: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>
[mailto:AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com> ] On
Behalf
> Of Don Kinzer
> Sent: Wednesday, December 29, 2010 10:54 AM
> To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com> 
> Subject: [AVR-Chat] Re: WinAvr TWI include files
>
>
>
>
>
> --- In AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>
<mailto:AVR-Chat%40yahoogroups.com> ,
> "Steve
> Hodge" <steve@...> wrote:
>>But the Project Configuration/Compile does
>>not seem to use [the file iom644PA.h].
> The part-specific include file will be included automatically if:
> 1) you include "avr/io.h"
> 2) you properly define the target MCU so that it gets passed to the
> compiler
> via the -mmcu option.
>
> Failure to do either of these will result in the register/bit names not
> being present.
>
>> Why, for one thing, the multiple TWI.H files?
> The avr-libc documentation suggests including "util/twi.h". Why not just
> follow that advice? The other twi.h files may be in their respective
> locations for backward compatibility with previous versions.
>
> Don Kinzer
> ZBasic Microcontrollers
> http://www.zbasic.net
>
>
>
>
>
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> The message was checked by ESET Smart Security.
>
> http://www.eset.com
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>
>
> __________ Information from ESET Smart Security, version of virus
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> database 5742 (20101229) __________
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>
> The message was checked by ESET Smart Security.
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>
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> http://www.eset.com
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>
>
> [Non-text portions of this message have been removed]
>
>





__________ Information from ESET Smart Security, version of virus signature
database 5743 (20101229) __________

The message was checked by ESET Smart Security.

http://www.eset.com

 

__________ Information from ESET Smart Security, version of virus signature
database 5743 (20101229) __________

 

The message was checked by ESET Smart Security.

 

http://www.eset.com



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