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mega644 and ethernet
Anyone know of a board with a 20mhz mega644 and an eth chip like a CS8900A? I'd use an xport, except I cant figure out how to get 600k bytes/sec out of it. The xport serial only...
Monday, 18 February 2008 - 20:17
use oc3a as output and oc3b and oc3c as pwm?
Interesting problem has arisen. I use OC3A as a chip select output for a display. I'm using OC3B and C as pwm outs for leds (mega1280). Seems like writing any nonzero number to...
Friday, 15 February 2008 - 19:50
sparkfun nokia 6100 128x128 color lcd
I'm drawing pictures in color on this thing with a mega32 and iccavr. Anybody else got one?
Monday, 11 February 2008 - 05:29
Measure small diff in freq in two 60 hz sine waves?
I can actually generate a 60 hz sine wave with variable volts and variable freq using 7812 hz pwm, a 256 point sine table, and that phase accumulator trick that the synth guys use...
Monday, 21 January 2008 - 02:26
'E meter' battery charge algorithm?
Does the E meter keep track of battery charge level by adding and subtracting coulombs of charge, that it, integrating current x time in and out? I can see how this would work...
Saturday, 19 January 2008 - 17:13
mega1280 board for sale?
I've clicked on a lot of dev bds in the tools section but havent found one yet... a mega1280 with 4 db9 connectors... anyone know if someone sells one somewhere? If I edit this...
Wednesday, 9 January 2008 - 04:30
PID control in 1st quadrant?
I have a 'proportional valve' that works on 0 to 12V closed to open on a 75 psi air line. I have an input voltage from a 75 psi pressure sensor. Inital conditions: valve closed,...
Wednesday, 9 January 2008 - 04:05
IAR 'silver bullet'?
Nice to see a couple professional programmers using the Atmel preferred IAR c compiler. I assume that this full featured system can do about anything... but is there a 'silver...
Monday, 31 December 2007 - 19:26
avr command line interpreter?
Happy New Year fellow freaks. Anyone ever heard of a command.com type of command line interpreter for these sd/mmc file systems? Maybe just a menu that says 1)dir 2)type 3)delete...
Monday, 31 December 2007 - 18:31
Read fat file from sd card using imagecraft?
Happy new year folks. I've spent some time trying to edit a couple of gcc fat16 projects but after lots of edit and recompile cycles there's always some wierd function or wierd...
Sunday, 30 December 2007 - 17:17
How many different mega AVR dies are there?
I heard someone guess that maybe there was only one mega AVR die, and depending on yield, as they are tested, they get tossed into bins... if all 128k flash tests, they put it in...
Saturday, 1 December 2007 - 23:37
two 5 x 2 pad sites on bottom of dragon?
Anyone know what is supposed to solder onto the two 10 pin sites on the bottom of the dragon? Are they test pads?
Sunday, 4 November 2007 - 21:26