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ATMEGA1284P Strange EEPROM contents after erase
Hi All,   I tried to program an Atmega1284P and writing fuses, chip erase and writing the program worked fine.   But programming the EEPROM lead to a fault in the...
Thursday, 17 November 2016 - 15:15
USB problem with AtmelICE under Linux
Hi All,   after successfully frying my Atmel JtagIce2 this morning I thought it may be time to get the AtmelICE out of the box (tried that before). Trouble is it will not...
Thursday, 17 November 2016 - 12:35
avrdude reset command
Hi,   avrdude has control of the reset line through an impressive collection of supported programmers.   Is there a command (possibly undocumented) to make avrdude...
Wednesday, 21 September 2016 - 15:36
problem programming attiny167 via isp with jtagice2 using avrdude
Hi,   I am having problems programming a tiny167 with the jtagice2 in isp mode using avrdude (version 6.2).    The 167 was missing in the avrdude.conf so I had...
Wednesday, 21 September 2016 - 13:11
XMEGA ADC Reference voltage range
Hello,   the ADC Vref is specified as Vcca-0.6V.        I read somewhere that the -0.6V limitation is due to the voltage being shared with the DAC....
Monday, 6 July 2015 - 06:59
SOLVED: PLL frequency change problem
I am having problems changing the PLL frequency; search in the forum did not produce any results   It is running at 32MHz and I want to change it to 16MHz: #define XTLFRQ...
Friday, 17 April 2015 - 19:56
SOLVED: avr-gcc problem with PROGMEM above 64k
Hello all,   I am writing a boot loader for a xmega256a3u and I have constant data with PROGMEM attribute.   The linker places it nicely into flash above 0x40000 (...
Sunday, 5 April 2015 - 13:02
SOLVED: Separate stack for interrupts with GNU AVR
Hello,   I am running a few threads under a simple scheduler.   Since I have interrups as well I have to allocate the interrupt stack size to every thread stack...
Thursday, 26 March 2015 - 05:35
XMEGA fuse programming problem using avrdude
Hello,   I use avrdude as my favourite tool for programming Atmels processors.   But I had problems for a while programming ATXMEGA256A3U fuses; it never works the...
Thursday, 19 February 2015 - 12:34
SOLVED: Problem programming fuses ATXmega128A4U
Hi,   I am having problems with AVR tools (again).    I am trying to program the fuses of an ATXmega128A4U.   fuse1:0x88 fuse2:0xff fuse4:0xf1 and...
Saturday, 3 January 2015 - 17:19
SOLVED: ATTiny87 LIN/UART pitfall
Hello, I am having a problem here with an ATTiny87. It sometimes doesn't start. Well actually most of the times it doesn't start (maybe 1 out of 20 attempts). Software seems...
Friday, 30 May 2014 - 07:23
Optimisation question
Hello, I am not sure if I'm making a mistake (or incorrect assumptions here). The dissembler output of a small program is: 223: if (sta...
Sunday, 11 May 2014 - 08:07

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