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2005-05-28 by wbounce
Never mind. When I wrote up the problem it was staring me in the face. I guess it is getting to late. SIGNAL(SIG_INPUT_CAPTURE3) is supposed to be SIGNAL(SIG_OVERFLOW3) -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of wbounc
2005-05-28 by wbounce
I am using winavr 3.4.1 with AVR studio 4.1. I am trying to find out why my code is no longer driving my motors. Anyhow I am stepping through it in AVR Studio and every so often I get jumped to the default interrupt vector. I have defined a default interrupt routing that just ret
2005-05-28 by David Kelly
On May 27, 2005, at 5:53 PM, John Samperi wrote: > At 10:06 PM 27/05/2005, you wrote: > >> No data >> is lost so long as one can read the previous assembled data before >> the current incoming is complete. >> > > Which is about 1ms at 9600 baud for an older chip with UART > or ab
2005-05-27 by John Samperi
At 10:06 PM 27/05/2005, you wrote: >No data >is lost so long as one can read the previous assembled data before >the current incoming is complete. Which is about 1ms at 9600 baud for an older chip with UART or about 2ms for a newer chip with double buffered USART. So you have a r
2005-05-27 by Dave VanHorn
At 01:50 PM 5/27/2005, Stefan Wimmer wrote: >--- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > > > > Look for .BDF fonts. They are primarily a linux thing, but they are >bitmapped. > >Hi Dave, > >...almost too busy to say thank you... > >That was a great hint - will save me
2005-05-27 by Stefan Wimmer
--- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > > Look for .BDF fonts. They are primarily a linux thing, but they are bitmapped. Hi Dave, ...almost too busy to say thank you... That was a great hint - will save me a lot of work. Thanks, Stefan
2005-05-27 by David Kelly
On May 27, 2005, at 5:59 AM, Farzlina Ab.Hadi wrote: > hello everyone, > i intend to use interrupt driven timer 1 and uart. i set the timer > 1 for 10ms interrupt. is it possible to apply this together with > uart? what if the interrupts occur at the same time ? would my > serial
2005-05-27 by Farzlina Ab.Hadi
hello everyone, i intend to use interrupt driven timer 1 and uart. i set the timer 1 for 10ms interrupt. is it possible to apply this together with uart? what if the interrupts occur at the same time ? would my serial data be lost if i was attending the timer 1 isr? my main progr
2005-05-26 by Peter Gargano
David Kelly wrote: > Yeah, what I don't understand is what all that complexity is all about. IP protection? peter.
2005-05-26 by Jim Wagner
Remember: Google is your friend! I did a quick search for "pas106B" and it turned up first item with full spec sheet: http://www.pixart.com.tw/productdetail_c.asp?num=24 The second item was a detailed analysis of the registers: http://home.kabelfoon.nl/~bertrik/webcam/pas106b.htm
2005-05-26 by stevech@san.rr.com
why not approach the manufacturer of the pas106B? ----- Original Message ----- From: njbibin Date: Thursday, May 26, 2005 0:20 am Subject: [AVR-Chat] pas106B image sensor interfacing with AVR > have u done this > > I want a detailed datasheet of pas106B so that i can interface it
2005-05-26 by alwelch93021
Atmel says it needs a min of 600ma to power the MKII. It has two ATMEG128 chips onboard plus other parts. I was pleased to find the STK500 allows the target VCC to be set in software from AVRStudio. I measured it with a meter to be sure and it does what is says! This is real hand
2005-05-26 by arhodes19044
--- In AVR-Chat@yahoogroups.com, "Graham Davies" wrote: > I think we should start this thread again. I don't have much to > suggest except to say that the piezo buzzers I bought from All > Electronics are too loud and I leave the tape over the hole! > > Is the OP sure that both s
2005-05-26 by Mike Murphree
Darren Worley said: > On Wed, May 25, 2005 at 01:54:49AM -0000, Graham Davies wrote: >> similar DC voltages. I hear your muscles clamp up and you can't get >> loose. Maybe I should check that, but I'm still not up for the >> experiment. > > Geez! Don't even think about messing wi
2005-05-26 by David Kelly
On Thu, May 26, 2005 at 01:33:14PM -0000, alwelch93021 wrote: > The STK500 schematics are available for anyone to review. The MKII > looks pretty complicated. I looked it over just yesterday. For the > price I would not bother to try and make my own. Yeah, what I don't understand
2005-05-26 by alwelch93021
I am driving my audio with a pull down logic and a resistor and cap to vcc. I had trouble getting mine to shut up when the driver was off so i put a resistor across the buzzer inputs to help drain off any leakage. Murata makes lots of these devices and they should be loud with ju
2005-05-26 by alwelch93021
The STK500 schematics are available for anyone to review. The MKII looks pretty complicated. I looked it over just yesterday. For the price I would not bother to try and make my own. Al --- In AVR-Chat@yahoogroups.com, "arhodes19044" wrote: > --- In AVR-Chat@yahoogroups.com, "Gra
2005-05-26 by Graham Davies
--- In AVR-Chat@yahoogroups.com, Ralph Hilton wrote: > Connect [the piezo buzze ] between > 2 output pins and switch them > alternately. That effectively > doubles the voltage. We're talking about a buzzer, here, not a speaker. You just apply a voltage and the buzzer does the res
2005-05-26 by njbibin
have u done this I want a detailed datasheet of pas106B so that i can interface it with AVR can anyone help me in this. This is the product http://www.pixart.com.tw/productdetail.asp?num=24 Bibin John www.bibinjohn.tk
2005-05-26 by Mike Murphree
On May 25, 2005, at 9:45 PM, Bernd Felsche wrote: > On Thursday 26 May 2005 10:16, Mike Murphree wrote: > >> On May 25, 2005, at 8:58 PM, Ralph Hilton wrote: > >>> Relative to pin1, pin2 goes from +5 volt to - 5 volt which is 10 >>> volts peak to peak. >>> > > Not really. It's ju
2005-05-26 by Darren Worley
[bits snipped] its all about **perspective** and relativity, not to mention the theory v/s reality. Follow it from the electron flow point of reference. ;) /me runs, goes back to ostrich mode... ô¿ô) Ralph Hilton wrote: >>Not unless you "store" the voltage somehow. ie. you may ne
2005-05-26 by Bernd Felsche
On Thursday 26 May 2005 10:16, Mike Murphree wrote: > On May 25, 2005, at 8:58 PM, Ralph Hilton wrote: > > On Thu, 26 May 2005 11:49:45 +1000 you wrote: > >> Ralph Hilton wrote: > >>>>> Connect it between 2 output pins and switch them alternately. > >>>>> That effectively doubles
2005-05-26 by Peter Gargano
If only life was so simple .... Ralph Hilton wrote: >>Not unless you "store" the voltage somehow. ie. you may need some >>diodes and capacitors. At any one time the voltage measured across the >>two pins is always no more than Vcc. >> >>Do you do advertisements for amplifiers? >
2005-05-26 by Mike Murphree
On May 25, 2005, at 8:58 PM, Ralph Hilton wrote: > On Thu, 26 May 2005 11:49:45 +1000 you wrote: > > >> Ralph Hilton wrote: >> >>>>> Connect it between 2 output pins and switch them alternately. >>>>> That effectively >>>>> doubles the voltage. >>>>> >>>> >>>> How does that work?
2005-05-26 by Ralph Hilton
On Thu, 26 May 2005 11:49:45 +1000 you wrote: >Ralph Hilton wrote: >>>>Connect it between 2 output pins and switch them alternately. That effectively >>>>doubles the voltage. >>> >>>How does that work? >> >> If the 2 pins are alternately pulled up then the peak to peak voltage is
2005-05-26 by Peter Gargano
Ralph Hilton wrote: >>>Connect it between 2 output pins and switch them alternately. That effectively >>>doubles the voltage. >> >>How does that work? > > If the 2 pins are alternately pulled up then the peak to peak voltage is 10. Not unless you "store" the voltage somehow. ie.
2005-05-26 by Ralph Hilton
On Thu, 26 May 2005 10:50:58 +1000 you wrote: >Ralph Hilton wrote: >> Connect it between 2 output pins and switch them alternately. That effectively >> doubles the voltage. > >How does that work? If the 2 pins are alternately pulled up then the peak to peak voltage is 10. -- Ralp
2005-05-26 by Peter Gargano
Ralph Hilton wrote: > Connect it between 2 output pins and switch them alternately. That effectively > doubles the voltage. How does that work? .
2005-05-26 by Ralph Hilton
On Thu, 26 May 2005 00:32:46 -0000 you wrote: >I have a radioshack piezo buzzer that is rated for 3-16 volts and a 3 >or 5 MA. I tested the current it draws with my dmm and I got the >rated MA being drawn. > >I had used this device on a different project using a BX-24 which has >
2005-05-25 by arhodes19044
--- In AVR-Chat@yahoogroups.com, "arhodes19044" wrote: > I have a radioshack piezo buzzer that is rated for 3-16 volts and a 3 > or 5 MA. I tested the current it draws with my dmm and I got the > rated MA being drawn. > > I had used this device on a different project using a BX-2
2005-05-25 by arhodes19044
I have a radioshack piezo buzzer that is rated for 3-16 volts and a 3 or 5 MA. I tested the current it draws with my dmm and I got the rated MA being drawn. I had used this device on a different project using a BX-24 which has an 8515 as its core. When I use it with my 128, the s
2005-05-25 by Darren Worley
On Wed, May 25, 2005 at 01:54:49AM -0000, Graham Davies wrote: > similar DC voltages. I hear your muscles clamp up and you can't get > loose. Maybe I should check that, but I'm still not up for the > experiment. Geez! Don't even think about messing with that, Graham. At least not
2005-05-25 by Brian Dean
On Wed, May 25, 2005 at 01:54:49AM -0000, Graham Davies wrote: > similar DC voltages. I hear your muscles clamp up and you can't get > loose. Maybe I should check that, but I'm still not up for the > experiment. Geez! Don't even think about messing with that, Graham. At least not
2005-05-24 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Claxton, Dean J" wrote: > ... that was some excellent information ... It just happens that at work we have a chance to sell a product in a country that uses 240 volt power so the workings of off-line flyback switching power supplies is very much
2005-05-24 by docsale
Hello everyone! I'm a new member of this group. I'm Italian and i don't speak english very well so please, forgive me for any mistake i will make! I'm in troubles with self-programming (I hope someone has experience about that). This is the problem: I need to have the reset vecto
2005-05-24 by fredit@charter.net
Not sure if this has been mentioned yet.. but the newest ver of Servo mag has a great artical on AVR and PWM using C. a couple pages long :) > > From: Brian Dean > Date: 2005/05/23 Mon PM 10:41:48 EDT > To: AVR-Chat@yahoogroups.com > Subject: Re: [AVR-Chat] PWM question > >
2005-05-24 by Robert Adsett
At 12:47 PM 5/24/05 +1000, Claxton, Dean J wrote: >Interesting - yes there is a good chance that is causing it. I didn't >even think of that. I'll try a bigger supply and see if that fixes it :) > >I usually test it with a PC PSU, but was using a 12V plug pack last >night - I thi
2005-05-24 by Claxton, Dean J
Interesting - yes there is a good chance that is causing it. I didn't even think of that. I'll try a bigger supply and see if that fixes it :) I usually test it with a PC PSU, but was using a 12V plug pack last night - I think it is rated at 1A, so if the hobby motors pull more t
2005-05-24 by Brian Dean
On Mon, May 23, 2005 at 08:26:26PM -0400, wbounce wrote: > Over the weekend I reviewing my PWM setting on the bot I am working > on. And I saw in the data sheet that you need to be sure that the > new OCR3A or OCR3B need to be higher TCNT. How you you handle this? > I seem to hav
2005-05-24 by Ralph Hilton
On Tue, 24 May 2005 11:33:52 +1000 you wrote: >A while ago I put together an 8 channel fan controller, for controlling >the speed (via PWM) of computer fans. > >Works fine with fans, but last night I attached a couple of little DC >motors to it (for a little robot project I am wo
2005-05-24 by Bruce Parham
You may need a stiffer power supply. Fans typ pull 100-200 ma, a stalled hobby motor can be a lot more, easily 1-2 Amps. Peter Gargano wrote: > Switching transients and back EMF noise. > > Claxton, Dean J wrote: > >>It would give a short burst, then reset (motor would run for a l
2005-05-24 by Peter Gargano
Switching transients and back EMF noise. Claxton, Dean J wrote: > It would give a short burst, then reset (motor would run for a little > bit - maybe a quarter of a second). > > Does anyone have any idea what could be causing it? As I said it works > fine with the fans. Output is
2005-05-24 by Claxton, Dean J
A while ago I put together an 8 channel fan controller, for controlling the speed (via PWM) of computer fans. Works fine with fans, but last night I attached a couple of little DC motors to it (for a little robot project I am working on with my son) and to my surprise the AVR sta
2005-05-24 by wbounce
Over the weekend I reviewing my PWM setting on the bot I am working on. And I saw in the data sheet that you need to be sure that the new OCR3A or OCR3B need to be higher TCNT. How you you handle this? I seem to have a problem with 1 motor erratically reving to full speed. Could
2005-05-23 by John Samperi
At 07:10 PM 23/05/2005, you wrote >Do any of you have any mega 8535 16MHz in Pdip that I could borrow 1, I >have an urgent job on, and my stock will not arrive till Wednesday :( Have you tried your friendly Jaycar shop? PERTH - NORTHBRIDGE 326 Newcastle Street Northbridge WA 6003
2005-05-23 by Dave VanHorn
At 04:44 AM 5/23/2005, Stefan Wimmer wrote: >Hi folks, > >I plan to use a graphic LCD module (128x64 pixel) which has a KS0108 >controller in it together with an ATmega64 for a multi language user >interface. A short web search brought up various (c-)libraries to >interface such
2005-05-23 by Kathy Quinlan
Hi all, Perthies, Do any of you have any mega 8535 16MHz in Pdip that I could borrow 1, I have an urgent job on, and my stock will not arrive till Wednesday :( If you do, could you please phone me on 0419 923 731. Regards, Kat.
2005-05-23 by Stefan Wimmer
Hi folks, I plan to use a graphic LCD module (128x64 pixel) which has a KS0108 controller in it together with an ATmega64 for a multi language user interface. A short web search brought up various (c-)libraries to interface such modules. I even found some font drawing programs, b
2005-05-23 by arhodes19044
--- In AVR-Chat@yahoogroups.com, "Graham Davies" wrote: > --- In AVR-Chat@yahoogroups.com, Brian Dean wrote: > > > ... do you plan to do [an inexpensive > > JTAG device] that supports the JTAGICE > > MkII protocol? > > No, I'm afraid I don't. There are several reasons. One is tha
2005-05-23 by Claxton, Dean J
Thanks Graham - that was some excellent information. I was a bit of a chicken and finally decided to open the screen to check for voltage regulators - seems ok with the 15V so far. Many thanks again though for your feedback on this - you may have even saved my life. Regards Dean