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ATMega128 ICs seem dead :-(
I recently bought some ATmega128A chips on eBay from China (a previously trusted supplier called H_quality). I can't get any life out of them at all. I thought maybe they were...
Wednesday, 21 October 2020 - 20:22
Prescaler causing a timing error? Why?
I've been testing some time keeping code which uses timer1 to create an interrupt running at 200 Hz. When I select timer 1 prescale = 1 the code runs 100-percent accurate but if I...
Saturday, 25 May 2019 - 06:54
Post removed
No longer applies
Sunday, 3 February 2019 - 14:10
IJMP irregularities after reset?
I have a bizarre bug which means that code stops working properly after a power down reset. [It always works fine just after programming.] I have discovered that if I take out a...
Tuesday, 6 April 2010 - 21:15
Software bug causes AVR hardware error?!?!?
I've been programming for around 35 years in total (a huge amount in machine code), and in all that time I haven't come across something quite as odd as what is happening with...
Monday, 5 April 2010 - 13:27
How out of date is the device listing on AVRFreaks?
There have been loads of new ICs released since this was last updated. Maybe it could do with a Wiki type thing where trusted freaks can update the list. ATXMega not even...
Sunday, 4 October 2009 - 23:28
Integrating Bitlash into an ATMega328
Bill, If a 328 is used and the Bitlash code takes 14.4K, that leaves over 17K spare. My code will probably fit in 2-3K including the pixel data and stuff (freaky assembler code)....
Thursday, 24 September 2009 - 19:11
Wanted - BASIC interpreter for AVR (commercial usage)
I'm posting this on the off-chance that someone might know where I could obtain a BASIC interpreter for AVR, that I could pay royalties on based on sales. I've developed a...
Sunday, 20 September 2009 - 20:13
Handy use for an old monitor
I'm not sure if this is something other people would find useful - but there's only one way to find out... Recently I was working on a project where I needed to have a constant...
Friday, 14 November 2008 - 21:50
Max SPI speed 66 MHz?
When searching, I came across several pages on the net indicating that the AVR32 chips had a very fast SPI speed. The datasheets seem to indicate that SPI output can be up to...
Saturday, 12 April 2008 - 23:19
24 bit dual audio DAC - cheap but can in do DC?
I'm looking at a very cheap IC: PCM1753/4/5 which has two 24 bit DACs. I want to control a radio receiver with the voltage output, which needs to be steady and as high a...
Sunday, 30 March 2008 - 00:29
AVR Overclocking - MPU block survey
I've searched for "overclocking" and found a few posts, including one from Atmel Norway saying don't do it, it's very naughty :twisted:. BUT, there are different sections of the...
Thursday, 6 March 2008 - 10:46