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Discussion Title Created date
ntsc video on avr32
Hi all, I recently decided to try my hand at the avr32 - a friend gave me an evk1101 and i have been meaning to learn a 32 bit architecture. I think i'd like to try implementing...
Monday, 26 July 2010 - 19:57
giving a serial widget a login process in osx
Hi! I have a widget that I want to give a login process from my mac's usb port through an ftdi chip. I know that in Ubuntu, I can add something like: start on stopped rc...
Wednesday, 21 April 2010 - 02:41
avrdude and the atmega8u2
Does anybody have a patch (or a workaround) that will let me use avrdude with the atmega8u2? I just downloaded version 5.10 and don't see it in the supported parts list.... Thanks!
Tuesday, 6 April 2010 - 06:13
Speeding up C code!
Ok, so the time has finally come for me to write my first C program which is optimized for as much speed as possible. I am trying to use an attiny13 driven at 14MHz (but with some...
Tuesday, 30 March 2010 - 17:40
Having trouble installing driver for FLIP
Hi all, I'm having trouble installing the usb driver for FLIP 3.4.1 so that I can play with my new XPLAIN board. When I click through the driver installer that pops up when I...
Tuesday, 9 March 2010 - 21:19
Tiny44 Freezing
Ok, so I am driving a motor that spins a disc with a mosfet from a tiny44, and has an optical encoder for feedback. I have my control algorithm working to vary the PWM duty cycle...
Monday, 14 December 2009 - 07:48
Motor Control Algorithm
Hi all....... I'm trying to control a dc motor to spin an aluminum disc at an exact speed using by varying its PWM duty cycle. The disc has 32 holes punched in it, with a IR LED/...
Sunday, 13 December 2009 - 20:09
Phase Correct PWM Mode
Hi, I'm trying to use phase-correct PWM (for the first time) to control a motor connected to a tiny44. No matter what I set OCR0A to, duty cycle is always hanging out around 50%...
Saturday, 12 December 2009 - 03:11
substitute for ferrite
Hi all.... I'm putting together a little circuit this weekend based around the AD725 NTSC encoder IC for a class I have on monday. I am designing the analog power/ground to...
Saturday, 14 November 2009 - 07:42
more adc help
OK, so here's my first attempt at reading the ADC from an attiny44 running on a 20MHz clock. I have a receiving ultrasonic transducer hooked up to the pin, but am not utilizing...
Tuesday, 3 November 2009 - 20:08
does the timer keep running during interrupt service?
Still working on that ultrasonic rangefinder that I've been posting about. I am sending a 40kHz pulse out of one transducer, and have another one hooked up to ADC pin 0. I would...
Tuesday, 3 November 2009 - 06:43
CTC mode frequency being weird
Hi, I'm trying to drive an ultrasonic transducer at 40kHz using the CTC mode on an attiny44 running at 20MHz. I have set OCR0A at 249 because 40000 = 20000000/(2*1*(1+249))...
Monday, 2 November 2009 - 07:59