[avr-libc-dev] [patch #8590] WDT enable/disable for devices with CCP

[Pitchumani]

URL:
  <http://savannah.nongnu.org/patch/?8590>

                 Summary: WDT enable/disable for devices with CCP
                 Project: AVR C Runtime Library
            Submitted by: pitchumani
            Submitted on: Wed 07 Jan 2015 06:38:13 AM GMT
                Category: None
                Priority: 5 - Normal
                  Status: In Progress
                 Privacy: Public
             Assigned to: pitchumani
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

For some devices CCP register should be written with the signature before
writing into WDT register. Attached patch adds a conditional branch to enable/
disable wdt for devices that has CCP.

Example: tiny4/5/9/10/20/40, tiny828 and tiny1634

In wdt enable/disable functions, there are branches to check whether the WDT
and CCP are in IO range or not. This is to generate in/out instructions if
they are in IO range. 

NOTE: Currently linker do not relax lds/sts into in/out if they are in IO
range.

ChangeLog

2015-01-07  Senthil Kumar Selvaraj <address@hidden>
            Pitchumani Sivanupandi <address@hidden>

    * include/avr/wdt.h: Add conditional branch to enable/disable wdt
    for devices that has CCP.




    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Wed 07 Jan 2015 06:38:13 AM GMT  Name: wdt-ccp-branch.patch  Size: 5kB  
By: pitchumani

<http://savannah.nongnu.org/patch/download.php?file_id=32777>

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/patch/?8590>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/