bugAVR C Runtime Library - Bugs: bug #40569, sleep_bod_disable does not work in...

 
 

bug #40569: sleep_bod_disable does not work in attiny13a

Submitted by:  Matthijs Kooijman <matthijs>
Submitted on:  Wed 13 Nov 2013 05:14:47 PM UTC  
 
Category: HeaderSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Header files
Status: NonePercent Complete: 0%
Assigned to: NoneOpen/Closed: Open
Release: 1.8.0Fixed Release: None

Add a New Comment (Rich MarkupRich Markup):
   

You are not logged in

Please log in, so followups can be emailed to you.

 

Wed 13 Nov 2013 05:14:47 PM UTC, original submission:

The implementation of sleep_bod_disable for non-xmega mcu's is as follows (from avr/sleep.h):

#define sleep_bod_disable()
do {
uint8_t tempreg;
_asm_ __volatile__("in %[tempreg], %[mcucr]" "nt"
"ori %[tempreg], %[bods_bodse]" "nt"
"out %[mcucr], %[tempreg]" "nt"
"andi %[tempreg], %[not_bodse]" "nt"
"out %[mcucr], %[tempreg]"
: [tempreg] "=&d" (tempreg)
: [mcucr] "I" _SFR_IO_ADDR(MCUCR),
[bods_bodse] "i" (_BV(BODS) | _BV(BODSE)),
[not_bodse] "i" (~_BV(BODSE)));
} while (0)

However, this hardcodes MCUCR, while attiny13 uses BODCR for these bits (see page 33 of http://www.atmel.com/Images/doc8126.pdf).

A grep on BODSE and BPDSE (a typo, see #40567) shows that tn2313a and tn4313 also have the same problem.

Perhaps adding something like:

#ifdef BODCR
#define BODSE_TEMP_REG BODCR
#else
#define BODSE_TEMP_REG MCUCR
#endif

and then use BODSE_TEMP_REG in the ASM snippet would fix this?

Matthijs Kooijman <matthijs>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):
   
   
Comment:
   

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by matthijs (Submitted the item)
  •  

    Please enter the title of George Orwell's famous dystopian book (it's a date):

     

     

    No Changes Have Been Made to This Item

    Back to the top


    Powered by Savane 3.1-cleanup