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AS7 Production file (elf) not compatible with AS4
Having been forced to update to AS7, and move to JTAG Ice 3. ( Too much grief with AS4 not finding the old dev tools ). I find myself with the following problem. My chips are...
Monday, 1 August 2016 - 08:07
Reset Vector opcodes different between AS6 and AS7
Changing from Studio  6.2 to Studio 7 ( Windows 7 64 bit )   Whilst using Studio 7, the reset vector opcodes codes are :   0000000  5C C0  RJMP PC+0x005D...
Thursday, 14 July 2016 - 07:29
Studio 6.2 Memory View with bootloader using Xmega32E5
Writing a bootloader - using snippets from various sources and having to keep it light as I have to have can bus support within it. I thought I was making progress - after a LONG...
Thursday, 6 August 2015 - 20:55
confused about TC45_CCAEN. undeclared , not recognised
As much as I hate ASF and its complexities, I'm using it as part of an existing project and need to use an additional timer with compare. Cut from an example..    ...
Thursday, 23 July 2015 - 17:00
'Code / Memory' size message missing .
Having suffered a dead HDD - I've reinstalled Studio 4.19 and WinAVR - thanks to Clawson for the 'how toget it to work' sticky. But after Ive successfully built the code it no...
Wednesday, 25 December 2013 - 16:34
Reading fuses from firmware - wrong values when executing
I've a weird problem - reading fuses - mainly the lock fuse to ensure that the device is protected before running code properly. Chip ATMEGA32A. If I used the JTAG II debugger,...
Tuesday, 10 September 2013 - 06:34
Thinking of using XMEGA A3 - Errata Beware
Looking at the latest datasheet - there are many NEW errata published for the same revision device. Some of these are quite serious and will undoubtedly cause you problems and...
Friday, 29 October 2010 - 14:47
Switch statement goes wrong unless optimisation is -O0
This has drivent me somewhat crazy - a whole program module that worked - when optimisation was globally at -O1, now fails - badly - jumping to address 0xFFFF instead of the...
Monday, 17 May 2010 - 20:23
Clarify a line of C code please
I get a warning - which I'f like to remove on the following line of code. It's part of a crc generator but not written by me and the warning is 'operation on 'ans' may be...
Monday, 5 April 2010 - 22:45
Xmega IO with structs and macro usage - problem with macro
Not using macros regularly the xmega io system is forcing my hand a little. I've made my own new macro in an attempt to make testing I/O pins easy but have come stuck with a macro...
Monday, 29 March 2010 - 21:14
Porting code from a PIC to AVR - bitfields
The existing code has a bitfield ( which I've not used before ), e.g: struct { int1 enable; int1 stuff; int8 spare:4; int8 RFoption:4; int8 RTgType:4; }b; and the bits are...
Saturday, 27 March 2010 - 17:21
New AVR board, runs immediately without halting at main :(
Any ideas anyone. I've a MEGA32A project running under JTAG emulation - one circuit board works fine.. but my new pcb ( variation ) simply loads code then runs without even...
Thursday, 3 December 2009 - 20:51

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