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DC-DC 12V-1kV
I have a little cute CRT tube named 3ЛО1И and I feel guilty of not giving it enough love. From what I know, it needs whereabouts of 500-800V on the accelerating anode, I don't...
Wednesday, 7 March 2012 - 11:36
[solved] dying mega8, no reset or wdt
Hey, I'm stuck with a rather funny situation, it has never happened to be before. Here I have an ATmega8, a 12MHz XTAL (CKOPT programmed, full swing) and a few other components...
Tuesday, 6 March 2012 - 09:46
[TUT] [UTIL] Programming ATmega with PICKit2 on Mac OSX
This is what I had to do to be able to program ATmegas on a Mac with a PICKit2. It is known that the same method works on Linux, but OSX requires a little change in the code....
Saturday, 26 February 2011 - 18:52
recommend high-side switches for brushless motors
I'm looking for some high-side pMOS switches to PWM-ize my Strobeshnik clock (currently the windings of the HDD motor are only switched by an ULN2803 at the low side, no PWM). All...
Wednesday, 10 March 2010 - 11:21
Interfacing AVR to MOS logic
I'm doing something atmega8-based that plugs to a Commodore 64 (heh) joystick port. This something causes me some unexpected trouble. C64 joystick port lines are shared with...
Thursday, 12 November 2009 - 13:07
Very short range line-of-sight optical link
I'm contemplating (again) a mechanical-scanning display. All homemade displays I've seen so far are fairly lame because they only show time or some pre-programmed text and stored...
Sunday, 27 September 2009 - 12:24
64-bit division, C/asm mix
Hi, My project requires to program DDS FTW, which is a 28-bit word derived as: FTW = Freq * 2**28 / Fmclk + 1 In reality, these numbers look like this (i'm using commas as...
Friday, 14 July 2006 - 15:27
Butterfly roundup request
I've been trying to follow passionate Butterfly discussions lately, but they tend to get really off hand or sink down to some very detailed specifics of particular users'...
Tuesday, 28 February 2006 - 15:00
signal levels, or something.. I'm stuck
Hi Freaks! I'm a little puzzled and stuck here, maybe someone will throw an idea. I have a circuit with a mega8L, cs8416 (SPDIF receiver) and AD1955 (DAC). The mega is SPI master...
Monday, 20 February 2006 - 09:11
Is mega8515 the only one with XRAM?
I thought there are other devices that support external SRAM, but AVR products page has only one occurence of the word "external"... Did I overlook something?
Thursday, 2 February 2006 - 15:16
why ATmegas die..
So, I joined the camp of bitter folks who have experienced this - all out of a sudden the ATmega (mega8L, at 3.3V if that may affect anything), stopped responding. I'm not going...
Monday, 30 January 2006 - 12:17
yet another bootloader thread
Hi fellow Freaks! I want to experiment with bootloaders a little. I don't really feel like implementing my own from ground up, at least not now. Instead I'd like to reuse some...
Friday, 27 January 2006 - 11:24