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Discussion Title Created date
UART idles low
My understanding is that the uart lines are to idle high but there appears to a significant percentage of chips trafficing through that appear to idle low. . .convinced that the...
Tuesday, 6 January 2009 - 01:15
Math Co-Processors
I find myself needing the processing power similar to a DSP without the dsp[for now, which looks like it will change]; I've switched to an ARM7 platform and would still like to...
Wednesday, 17 December 2008 - 19:55
How to create a Virtual Serial Port?
Anybody familiar with this in a VB 2008 environment?
Monday, 15 December 2008 - 22:52
Pullup resistors on data bus for lcd?
Using 8-bit parallel interfacing for hd47780 compatible lcd's, has anybody put pullup resistors on the databus to help with the transient delay? Would this even help at all?
Monday, 29 September 2008 - 19:54
External Flash Interface
I'm gearing up for a project where I'm planning to give myself some elbow room by incorporating additional eeprom space by means of SPI. . .I'll be using the mega128 and I see...
Thursday, 25 September 2008 - 18:33
Is a Unifilar stepper motor same as Bipolar stepper motor?
I've a 2 phase 1.8 deg/step nema34 stepper motor and I'm a little confused as to how I get this thing to rotate in any direction. . .I've 4 wires with no common ground. . .I've...
Thursday, 22 May 2008 - 09:37
40x4 HD44780
I'm having a bit of trouble controlling a 40x4 lcd[using mega128]. . .when writing to any given line, I make sure to enable(+5) the appropriate E line and disable(Gnd) the other...
Saturday, 17 May 2008 - 01:28
Multiple LCD's?
I'm interested in sending characters to 3 lcd's that will be independent of one another. . .I've managed to print to 1 easy enough, just not too sure how to designate which lcd to...
Friday, 7 September 2007 - 01:08
More than 8 bits via uart/i2c/spi?
I did a search but didn't come back with much. . .is it possible to send >8bits using any of the aforementioned protocols?
Tuesday, 21 August 2007 - 20:52
16z2 LCD Pinout help for a newb
Where's a decent document that describes the function of each pin on a 16x2 parallel LCD?
Friday, 1 June 2007 - 01:01