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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...
Friday, 18 September 2015 - 15:00
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...
Monday, 14 September 2015 - 13:28
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 ;...
Thursday, 7 November 2013 - 09:15
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...
Tuesday, 5 November 2013 - 13:00
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...
Thursday, 31 October 2013 - 13:08
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...
Thursday, 24 October 2013 - 14:41
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...
Thursday, 19 September 2013 - 17:34
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...
Monday, 16 September 2013 - 15:08
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...
Thursday, 12 September 2013 - 14:53
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...
Thursday, 5 September 2013 - 10:41
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...
Wednesday, 28 August 2013 - 09:44
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...
Monday, 12 August 2013 - 13:52

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