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Discussion Title Created date
Multiplexing by setting OCR1A ahead X cycles
I am multiplexing a 5x7 grid of LED's.  The columns are being multiplexed, and with a refresh rate of 100 Hz, that means 100 * 5 = 500 Hz for the ISR.  This would be...
Monday, 19 December 2016 - 16:15
Would either of these techniques be better...
Hi Everyone,   I was looking at a thread the other day and the guy had made a pcb with microcontroller and carefully positioned 0805's to emulate an older style LED hex...
Saturday, 17 December 2016 - 01:19
CHRISTmas Autoprogrammer Giveaway - enter here for your chance!
Hi Everyone,   For my friends here at AVRFREAKS:  I am going to give away a 256K Autoprogrammer to two lucky winners!  Postage is included for US folks; I'll cover...
Wednesday, 7 December 2016 - 01:38
switch issue in bootloader - how does this work
I'm working on a bootloader and a switch case is not working properly.  All it does it switch a single byte and then I've added some debug code that turns out a LED.  It...
Tuesday, 15 November 2016 - 02:29
Erase application section not working for me...
I'm using an atxmega384c3 and have a bootloader that is able to erase/write flash pages just fine.  The command that is supposed to erase the entire application section...
Tuesday, 25 October 2016 - 01:28
How can I get a bootloader embedded into the HEX/ELF of the main application?
Hi Everyone,   Using a atmega384c3 with a bootloader at 0x60000.  How can I modify the main project so that it compiles the bootloader in at this address automatically...
Thursday, 29 September 2016 - 21:39
SPM from bootloader for xmega 384c3
Hi Everyone,   It looks like boot.h doesn't work.  Is there any code that uses the SPM instruction to erase/program the flash area?   Thanks,   Alan  
Tuesday, 30 August 2016 - 02:26
Please recommend a math library for gcc for this task...
I am working on a PI loop to control the frequency trim of a Rubidium module.  KKP has been very kind in helping and advising me in many things I have no clue about.  I'...
Thursday, 18 August 2016 - 15:02
xmega384c3 bootloader questions...
I am working on trying to make a bootloader for the 384c3 that has a lot to do and I am running into the 8K fixed size limit with all that I want to accomplish.   The tasks...
Tuesday, 26 July 2016 - 15:49
Does anyone want to look through this and/or point out any optimization
This is some code to do wear leveling, data integrity, and mirroring for storing one or more structures in EEPROM.   I just finished it and thought perhaps someone might see...
Sunday, 29 May 2016 - 14:42
If anyone wants to look through/critique my code - EEPROM
Hi Everyone,   I am working on a new EEPROM library that will handle both internal EEPROM on the tiny/megas and also i2c EEPROM for the tiny/megas (twi and bitbang). ...
Wednesday, 18 May 2016 - 20:11
Two XMEGA reset questions...
Hi,   The first one is - does XMEGA require/need a resistor pullup on reset?   The second one is - I noticed the XMEGA E manual says "The SRAM content is kept.". ...
Friday, 15 April 2016 - 12:35

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