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#pragma pack(4) on AVR
I have an include file shared between 8-bit AVR, 32-bit ARM, and Windows projects that defines a common struct for communications between them.  I attempted to ensure the...
Monday, 18 November 2019 - 20:05
SAM D21 problem with buffered PWM on TCC
I am using TCC0 on a D21 for PWM to an H-bridge. I use the Pattern register to override the PWM signals to force an output high or low. The TCC conveniently provides buffer...
Tuesday, 10 July 2018 - 19:20
AS7 not reporting compiler errors
I just installed AS 7.0.594 and started a new C++ project. I've found that compilation errors are no longer individually reported -- all I get is "FAILED" at the end....
Wednesday, 4 November 2015 - 19:51
Using .weak in custom vector table
I have a custom vector table (thanks AVR Bootloader FAQ). I have modified the linker script to throw out the original .vectors section and replace it with mine. Following the...
Monday, 26 September 2011 - 22:27
JTAGICE USB driver for Windows 7 x64
I just got a 64-bit Windows 7 machine yesterday and installed AVR Studio 4.17 on it. The USB driver for the JTAGICE MkII won't work -- Device Manager says "The drivers for this...
Thursday, 5 November 2009 - 00:12
XMEGA EEPROM access standards
I have just gotten memory-mapped EEPROM access working with an ATxmega256A3, and I'm looking for suggestions & consensus on the "right" way to support this. Memory-mapped...
Sunday, 18 October 2009 - 00:39
Disassembly window very slow on Vista x64
I am using AVR Studio (4.14b589) to debug projects over JTAG. I've found it takes a very long time -- 17 seconds -- to open the disassembly window on my fast Vista x64 machine,...
Friday, 22 August 2008 - 19:46
EEPROM code bloat
I just switched to WinAVR 20080610 from 20071221 and I've discovered a significant increase in the code size for EEPROM read/write. In a nutshell: a) eeprom_read_byte() and...
Wednesday, 18 June 2008 - 23:38
Code size increase with new WinAVR
I tried out WinAVR 20080411 and found that code size grew for a my current project by about 10% (was about 10K). After investigating I found the major reason was inlining. It...
Wednesday, 16 April 2008 - 06:57
Fix for source code in disassembly file (avr-objdump -s)
In the latest release of WinAVR, the disassembly output created by avr-objdump -s (.lss file) no longer includes the source code as it should. I have written a program call...
Thursday, 7 February 2008 - 00:57
JTAGICE won't program 16MHz AT90USB162 over debugWire
I had been using my JTAGICE Mk II with the STK526 (which has an AT90USB162 @ 8MHz on it) for development, and everything has worked fine. Then I switched to my own design where...
Wednesday, 6 February 2008 - 23:39
C++ global variables can't be watched in AVR Studio
If I declare a global variable in C++ with GCC, the AVR Studio debugger will not recognize it. If I try to set a watch on the variable, it simply says "out of scope". I tried...
Sunday, 21 October 2007 - 20:42

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