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2006-01-12 by Thomas Keller
Micah Stevens wrote: > >On Wednesday 11 January 2006 8:27 pm, Thomas Keller wrote: > > >> Or use one of the serial input PWM driver chips available form any >> number of vendors, and control it with the AVR lighting chip. *heh* >> >> >> > >Links? I didn't see any that fit my purp
2006-01-12 by Klaus Ruebsam
> BTW - there seems to be a new standard: > The new AVRISP mkII only has the 6-pin connector. AFAIK the 6 pin version is the original Atmel idea behind, the 10 pin version originated from Kanda Regards, Klaus -- Lust, ein paar Euro nebenbei zu verdienen? Ohne Kosten, ohne Risiko!
2006-01-12 by Micah Stevens
On Wednesday 11 January 2006 8:27 pm, Thomas Keller wrote: > > Or use one of the serial input PWM driver chips available form any > number of vendors, and control it with the AVR lighting chip. *heh* > Links? I didn't see any that fit my purpose that weren't $20 a chip. -Micah
2006-01-12 by James Washer
Of course... thanks On Thu, 12 Jan 2006 03:08:07 -0000 "Don Kinzer" wrote: > --- In AVR-Chat@yahoogroups.com, James Washer wrote: > >What I cannot figure out is why they didn't bring SS out to the > > 10-pin header (replacing one of the ground leads) thereby allowing > > develope
2006-01-12 by Dale Mosby
On Tue, 2006-01-10 at 15:36 +0000, Richard Austin wrote: > I have bought a STK500 and wish to program it/monitor it with my laptop. > Only problem is that the laptop only has USB ports. I've looked on the > group to find mention of USB>parallel or serial, but there does not seem
2006-01-12 by Thomas Keller
*aha* I just received an emailing from Ember Corp, one of the major corporate forces in Zigbee technology. The email is intended to annoounce and expl;ain thei rnewly forged partnershi with STelectornics, but happens to enumerate a list of theirt existing Zigbee development partn
2006-01-12 by Thomas Keller
Micah wrote: >I was considering that. It's not out of the question as I could have a >master controller feed instructions to them upon boot I think, I didn't >look at the details of how the tiny26s get their instruction code, but I >would bet I could feed it from a bigger micro.
2006-01-12 by Thomas Keller
James Hatley wrote: >I couldn't find any at90pwm at www.findchips.com yet. > >How about 6 ATtiny26s one for each PWM? they are inexpensive... > Interesting. I hadn't noticed that Digikey doesn't actuyally list the AT90PWM chips. I have a couple of AT90PWM3s Atmel sampled me, so t
2006-01-12 by Thomas Keller
Micah Stevens wrote: >But I'll need 5-6 independant outs. The Lighting chips might do the trick, I >need to sit down and read the datasheet, and find out how much they are, and >if they're even available yet. > >Thanks! >-Micah > >On Tuesday 10 January 2006 7:19 pm, Dave VanHorn
2006-01-12 by Thomas Keller
Zack Widup wrote: >On Wed, 11 Jan 2006, John Samperi wrote: > > >>At 01:25 PM 11/01/2006, you wrote: >> >> >>> Quite simple: I have potential applicaitonsd whre a 20 Mhz processor >>>simply isn't fast enough. >>> >>> >>Is it a hardware or software limitation? Can you rewrite part
2006-01-12 by Thomas Keller
John Samperi wrote: >At 01:25 PM 11/01/2006, you wrote: > > >> Quite simple: I have potential applicaitonsd whre a 20 Mhz processor >>simply isn't fast enough. >>Is it a hardware or software limitation? Can you rewrite part >>(or all??) of the application in assembler perhaps? I
2006-01-12 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, James Washer wrote: >What I cannot figure out is why they didn't bring SS out to the > 10-pin header (replacing one of the ground leads) thereby allowing > developers to use the same header for both ISP and SPI Since pin 3 of the 10-pin configurat
2006-01-12 by James Washer
What I cannot figure out is why they didn't bring SS out to the 10-pin header (replacing one of the ground leads) thereby allowing developers to use the same header for both ISP and SPI On Thu, 12 Jan 2006 00:12:42 -0000 "Don Kinzer" wrote: > --- In AVR-Chat@yahoogroups.com, "Ste
2006-01-11 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "Stefan Wimmer" wrote: > BTW - there seems to be a new standard: > The new AVRISP mkII only has the 6-pin connector. It's not particularly new. The STK500 has both 6-pin and 10-pin ISP connectors. The ATAVRISP also has both. Don ZBasic Microcontro
2006-01-11 by Stefan Wimmer
--- In AVR-Chat@yahoogroups.com, Mark Weston wrote: > > ... AtMega32, programming pins brought out to the standard 10pin ISP header BTW - there seems to be a new standard: The new AVRISP mkII only has the 6-pin connector.
2006-01-11 by Micah
I was considering that. It's not out of the question as I could have a master controller feed instructions to them upon boot I think, I didn't look at the details of how the tiny26s get their instruction code, but I would bet I could feed it from a bigger micro. -Micah James Hatl
2006-01-11 by Zack Widup
On Wed, 11 Jan 2006, John Samperi wrote: > At 01:25 PM 11/01/2006, you wrote: > > Quite simple: I have potential applicaitonsd whre a 20 Mhz processor > >simply isn't fast enough. > > Is it a hardware or software limitation? Can you rewrite part > (or all??) of the application in
2006-01-11 by James Hatley
I couldn't find any at90pwm at www.findchips.com yet. How about 6 ATtiny26s one for each PWM? they are inexpensive... Jim ----- Original Message ----- From: "Micah Stevens" To: Sent: Wednesday, January 11, 2006 9:09 AM Subject: Re: [AVR-Chat] Re: AVR overclocking question But I'l
2006-01-11 by Micah Stevens
But I'll need 5-6 independant outs. The Lighting chips might do the trick, I need to sit down and read the datasheet, and find out how much they are, and if they're even available yet. Thanks! -Micah On Tuesday 10 January 2006 7:19 pm, Dave VanHorn wrote: > --- In AVR-Chat@yahoog
2006-01-11 by JChavez@soboce.com
Hi, I meant "you can use any AVR instead of the atmega8". Sorry, Javier JChavez@soboce.com@yahoogroups.com con fecha 11/01/2006 08:14:29 a.m. Por favor, responda a AVR-Chat@yahoogroups.com Enviado por: AVR-Chat@yahoogroups.com Destinatarios: AVR-Chat@yahoogroups.com CC: Asunto: R
2006-01-11 by JChavez@soboce.com
Hi, I had the same problem with my new COMPAQ-HP laptop. and I bought a serial usb converter. No way it didn´t work. So I found in the net USBASP. You can use any AVR instead of AVR. It works nicely. Hope it helps. JAvier >Hi all, > >I've been lurking for a while and have a quest
2006-01-11 by John Samperi
At 01:25 PM 11/01/2006, you wrote: > Quite simple: I have potential applicaitonsd whre a 20 Mhz processor >simply isn't fast enough. Is it a hardware or software limitation? Can you rewrite part (or all??) of the application in assembler perhaps? I understand the case of a PWM sc
2006-01-11 by stevech
Some other 802.15.4 vendors (ZigBee is a consortium like WiFi to define the upper layer protocols)... Helicomm Crossbow MaxStream Dust, Inc. Ember Networks Home automation... Eaton (soon) Hawking (summer) -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@
2006-01-11 by Thomas Keller
John Samperi wrote: >At 02:25 AM 11/01/2006, you wrote: > > > >> So...has anyone here overclocked AVR chips? >> >> > >What is the fascination with over clocking chips? >So far I run my chips at 8MHz (half the max speed ) >and find myself putting a few NOPs here and there to >slow
2006-01-11 by Dave VanHorn
--- In AVR-Chat@yahoogroups.com, Micah Stevens wrote: > > > I looked into overclocking to facilitate a PWM scenario I needed to run. After > calculating though, I'd need to run the chip at 80Mhz to make due, a bit > over-spec, so I'm doing something different now. The tiny-26 has
2006-01-11 by James Washer
I'm starting to play with the SPI, an I'm a bit confused. If I'm in Master Mode, with SS as an input, interrupts enabled, and SPIE set in SPSR, when another Master slave selects me, I'll go into Slave mode.. that's all fine... However the databook "The SPIF Flag in the SPSR is se
2006-01-11 by xolang1
I have been using the USB-to-serial converter from Prolific Technology for many months now using PC and Laptop + STK500 and with good performance. The only thing now very ideal is that the device sometimes displays strange characters on hyperterminal but can be solved by unpluggi
2006-01-11 by Roy E. Burrage
I've been using a USB/Serial converter bought from Tiger Direct for over a year, Richard, and had no problems. I think I bought the cheapest one they had because I wasn't certain it would work. This one is a Sabrent if that helps...something like 5 or 10 bucks if I remember corre
2006-01-10 by Micah Stevens
Ahh. the Power Stage Controllers, for lighting.. interesting.. Thanks for the tip.. -Micah On Tuesday 10 January 2006 2:45 pm, Micah Stevens wrote: > 150Khz * 8bits = 38.4 mhz.. so that would work. Which chips have the 64Mhz > PWM? I'm not seeing it in the product overview. > > -
2006-01-10 by Micah Stevens
150Khz * 8bits = 38.4 mhz.. so that would work. Which chips have the 64Mhz PWM? I'm not seeing it in the product overview. -Micah On Tuesday 10 January 2006 2:08 pm, Ralph Hilton wrote: > On Tue, 10 Jan 2006 13:15:54 -0800 you wrote: > >I looked into overclocking to facilitate a
2006-01-10 by Micah Stevens
Thanks for the tip, I'll take a look at it. I need 6 independant outputs though.. -Micah On Tuesday 10 January 2006 2:25 pm, James Hatley wrote: > Yes, good point Ralph ... > > He should check out the ATtiny26, it has a really fast PWM capability. > > Jim > > > ----- Original Mes
2006-01-10 by James Hatley
Yes, good point Ralph ... He should check out the ATtiny26, it has a really fast PWM capability. Jim ----- Original Message ----- From: "Ralph Hilton" To: Sent: Tuesday, January 10, 2006 2:08 PM Subject: Re: [AVR-Chat] AVR overclocking question > On Tue, 10 Jan 2006 13:15:54 -080
2006-01-10 by Ralph Hilton
On Tue, 10 Jan 2006 13:15:54 -0800 you wrote: > >I looked into overclocking to facilitate a PWM scenario I needed to run. After >calculating though, I'd need to run the chip at 80Mhz to make due, a bit >over-spec, so I'm doing something different now. If its just the PWM clock th
2006-01-10 by Micah Stevens
I looked into overclocking to facilitate a PWM scenario I needed to run. After calculating though, I'd need to run the chip at 80Mhz to make due, a bit over-spec, so I'm doing something different now. Just as an example, -Micah On Tuesday 10 January 2006 12:39 pm, John Samperi wr
2006-01-10 by John Samperi
At 02:25 AM 11/01/2006, you wrote: > So...has anyone here overclocked AVR chips? What is the fascination with over clocking chips? So far I run my chips at 8MHz (half the max speed ) and find myself putting a few NOPs here and there to slow them down. So WHY do you need to do it?
2006-01-10 by kholt@sonic.net
I use the Tiny26 in a battery-powered wand toy, and I've seen them working under 2 volts. I don't remember what the spec says, maybe 2 volts is not so low. > > Can anyone point me to info on the T26 at low voltage? > > Specifically, if I turn off the BOD, and rely on the watchdog
2006-01-10 by Jim Wagner
Odds are, there will not be a definitive "stops working" voltage. For example, you may start to have errors on EEPROM writes. Or, the clock may start to get off-frequency. The Atemel micros, especially, have been noted as working well at lower voltage at room temperature, but sta
2006-01-10 by Richard Austin
This is the information I wanted. Thanks to all. Tim Mitchell wrote: > AVR-Chat@yahoogroups.com wrote: > >>Hi all, >> >>I've been lurking for a while and have a question. >> >>I have bought a STK500 and wish to program it/monitor it with my >>laptop. Only problem is that the lapt
2006-01-10 by James Washer
Not the cheapest.. just the best.... Keyspan Brand On Tue, 10 Jan 2006 15:36:39 +0000 Richard Austin wrote: > Hi all, > > I've been lurking for a while and have a question. > > I have bought a STK500 and wish to program it/monitor it with my laptop. > Only problem is that the lap
2006-01-10 by Ralph Hilton
On Tue, 10 Jan 2006 15:45:46 -0000 you wrote: >--- In AVR-Chat@yahoogroups.com, Ralph Hilton wrote: >> >http://www.prllc.com/productcart/pc/viewPrd.asp?idcategory=6&idproduct=12 >> >> Chapter 5, Project Development >> This chapter focuses on the orderly development of a project u
2006-01-10 by Dave VanHorn
Can anyone point me to info on the T26 at low voltage? Specifically, if I turn off the BOD, and rely on the watchdog, at what voltage does the WDT start/stop working? Also, does anyone know typical (rather than guaranteed) numbers for where the T26 actually stops working, using t
2006-01-10 by Jim Wagner
This is absolutely true and is a point worth making. Some loads work well directly driven by PWM. Heaters and motors are good examples. Typically, these are devices with a long mechanical time-constant compared to the PWM period. When you can do this, it it typically more efficie
2006-01-10 by Ralph Hilton
On Tue, 10 Jan 2006 15:36:39 +0000 you wrote: >Hi all, > >I've been lurking for a while and have a question. > >I have bought a STK500 and wish to program it/monitor it with my laptop. >Only problem is that the laptop only has USB ports. I've looked on the >group to find mention
2006-01-10 by Mark Weston
Another excellent way to start is with an ATMega32 kit from Eddy Wright @ WWW.WrightHobbies.NET. for $35.00 US you get a kit to build a controller with AtMega32, programming pins brought out to the standard 10pin ISP header, ISP dongle for programming, and a software CD that incl
2006-01-10 by Dennis
Do a google on RS-232 to USB converters. There are bunches of them available for around $10usd Dennis ----- Original Message ----- From: "Richard Austin" To: Sent: Tuesday, January 10, 2006 9:36 AM Subject: [AVR-Chat] Newbie question - STK500 and USB > Hi all, > > I've been lurki
2006-01-10 by Thomas Keller
One thing that has always bothered me about electronic weather station design: How do you normalizee temperarture readings (perhaps I am using the wrong term here).? If you place your temperature sensor diredtly in the sunlight, it will likely register a higher reading thanthe ac
2006-01-10 by Thomas Keller
Kong wrote: >there's also a wireless weather station based on pic16f873... >http://www.circuitcellar.com/ > > Speakjing of wireless, Atmel isn't suppoting it YET, though I have little doubt that they will come on board eventually: Check out Zigbeee wireless mesh networking. IEEE
2006-01-10 by Richard Austin
Hi all, I've been lurking for a while and have a question. I have bought a STK500 and wish to program it/monitor it with my laptop. Only problem is that the laptop only has USB ports. I've looked on the group to find mention of USB>parallel or serial, but there does not seem to b
2006-01-10 by Thomas Keller
So...has anyone here overclocked AVR chips? How successfully? Hpow far? I note that some fothe Atmel data sheet charts show performance at up to 24 Mhz, which is 25% above the rated 20 Mhz maximum clock. I also note that Atmel is very specific about not pushing the clcok speedfor
2006-01-10 by Thomas Keller
Kong wrote: >tom, > >i'm half way to being converted! by nothing more than the quality of >your post alone! ;-) > > >*blush* > > >the last time i wrote anything substantial (>10 years ago), i went for >delphi instead of VB or VC++, does that make me a PIC or an AVR person? > > >