[avr-libc-dev] Re: [avr-gcc-list] set_sleep_mode and tiny2313/26

[akibow]

Is "Bug-tracker" here?
https://savannah.nongnu.org/bugs/?func=additem&group=avr-libc
I'll register it.

I found a problem about "Busy-wait delay loops".
Document says to define F_CPU ,
 write "#define F_CPU 1000000UL  // 1 MHz"
But it makes error on compiling when using makefiles that is 
produced by Mfile.
By default, makefile has following definition.
F_CPU = 10000000
CDEFS = -DF_CPU=$(F_CPU)UL
So if #define F_CPU is placed on our source file, double-definition 
error may occur. It should be written in documentation.

from E. Weddington <address@hidden>
>akibow wrote:
>
>>Hello. I'm using avrgcc and AVR-LibC.Thanks a lot.
>>Now I am trying to make Japanese version of AVR-LibC document.
>>
>>We found error? about <avr/sleep.h>. please check it.
>>_SLEEP_TYPE of tiny2313 and tiny26 are 2,becouse these have SM0,SM1 but not 
>>have SM2.
>>So,set_sleep_mode() setting for _SLEEP_TYPE=2 is defined like below:
>>
>>SLEEP_MODE_IDLE ===> SM1:SM0 = 00
>>SLEEP_MODE_ADC  ===> SM1:SM0 = 01
>>SLEEP_MODE_PWR_DOWN ===> SM1:SM0 = 10
>>SLEEP_MODE_PWR_SAVE ===> SM1:SM0 = 11
>>
>>But, by datasheet, tiny26 and tiny2313 do not have PowerSave mode.
>>Instead,SM1:SM0=11 is for STANDBY mode.
>>
>>  
>>
>Thanks for catching this. Could you fill out a bug tracker on the 
>avr-libc project on Savannah? That way, this issue won't get lost.
>
>Thanks
>Eric
>
>
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