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I need some assembler advice / help please
Hi This is for an XMEGA using Atmel Studio and GCC   As a C programmer I need some assembler advice. I have an unsigned char that contains a value between 0 and 8.. lets call...
Fri. Sep 18, 2015 - 03:00 PM
Need help with this error: variable 'f_SignalFormat' must be const in order to be put into read-only section by means of '__attribute__((progmem))'
Hi I am attempting to compile code that I did not write. I get this error: Error    1    variable 'f_SignalFormat' must be const in order to be put...
Mon. Sep 14, 2015 - 01:28 PM
A little help with assembly please
I have almost zero avr assembly knowledge. I am trying to use a simple .s file which was for a different compiler, in GCC. The original was this: _LoadZ:: movw Z, r16 ;...
Thu. Nov 7, 2013 - 09:15 AM
How to get Xboot to make and compile using winxp
After spending hours trying to get bandtanks bootloader to work I decided to also give xboot a try. I read the instructions and it all seemed easy until I tried the make...
Tue. Nov 5, 2013 - 01:00 PM
AVR911 xml files for xmega
Hi I want to use AVROSP to program an Xmega 64a3. It appears that I require an old xml file which was part of studio4. I have tried downloading it from Atmel but the zip file...
Thu. Oct 31, 2013 - 01:08 PM
A math question
I have the fllowing bit of code on an Xmega: TD1 = TsyncS1 - TsyncM1; TD2 = TsyncM2 - TsyncS2; TDelay = (TD1 + TD2) / 2; TDiff = TDelay - TD1; I have a break point on the line...
Thu. Oct 24, 2013 - 02:41 PM
Xmega clock accuracy problems
Xmega = 64A3U-AU I posted about this problem before: http://8515.avrfreaks.net/index.... I thought I had everything figured out but I was wrong. I have done many tests to ensure...
Thu. Sep 19, 2013 - 05:34 PM
Operator precedence question.
uint16_t RowIndx; is a local uint8_t CursRow; is a global In Debug mode this: if(CursRow + RowIndx == 1) was true and in Release mode it was not. After changing it to if...
Mon. Sep 16, 2013 - 03:08 PM
Assembler vs C
This is not intended to be one of those time wasting arguments about which is best. Before I started with AVR's I used to develop using 8051FA MCU's. At the time most of the work...
Thu. Sep 12, 2013 - 02:53 PM
Is AVRONE used with Atmelstudio6 Just a waste of money?
A few years ago I purchased an AvrOne. At the time it was advertised as Atmels top of the range emulator. The problem is that it appears to have very limited functionality. It...
Thu. Sep 5, 2013 - 10:41 AM
Timer / Clock accuracy not what expected
Hi Xmega = 64A3U-AU I am trying to get an accurate 1ms from a counter. I am using an external watch crystal 32.768khz @ 20ppm . The watch crystal is used to calibrate the main...
Wed. Aug 28, 2013 - 09:44 AM
Build Events error
Hi About a year ago I came across this avr-nm --size-sort $(OutputDirectory)\$(OutputFileName)$(OutputFileExtension) > $(OutputDirectory)\$(OutputFileName).sym which gets put...
Mon. Aug 12, 2013 - 01:52 PM

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