Experience in AVR Butterfly?
2004-07-02 by info4tom2003
How to write and read data to/from external dataflash? With GNUS dataflash.c/.h it does not work! Do I have to have a higher voltage than e.g. 2,7V? Kind reagrds
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Re: [AVR-Chat] Tiny11 oscalator
2004-07-02 by David VanHorn
At 02:13 PM 7/1/2004 -0700, David wrote: >That is quite a bit of overkill. A 555 one-shot timer >would be more than sufficient, and probably >considerably cheaper (under $2USD for everything) The T11 is $0.25, and can be given way more interesting behaviour. This is kind of the p
Re: [AVR-Chat] Tiny11 oscalator
2004-07-02 by David VanHorn
At 02:13 PM 7/1/2004 -0500, Michael Haisley wrote: >I'm not, unfortunatly the useless electronics class I took was....I >wish we had a good instructor locally who could teach some AVR based >classes...but they would have to have lots of electronics >experiance....know anyone? Wha
Re: Tiny11 oscalator
2004-07-02 by Dave Mucha
--- In AVR-Chat@yahoogroups.com, David wrote: > That is quite a bit of overkill. A 555 one-shot timer > would be more than sufficient, and probably > considerably cheaper (under $2USD for everything) I think that to get three different timing values, plus a small package, the tin
Re: [AVR-Chat] Tiny11 oscalator
2004-07-01 by David
That is quite a bit of overkill. A 555 one-shot timer would be more than sufficient, and probably considerably cheaper (under $2USD for everything) --- Dave Mucha wrote: > Hi all, > > I am looking at the tiny11 and crystals/oscalators. > > As you may know, I an looking at differe
Re: [AVR-Chat] Tiny11 oscalator
2004-07-01 by Michael Haisley
I'm not, unfortunatly the useless electronics class I took was....I wish we had a good instructor locally who could teach some AVR based classes...but they would have to have lots of electronics experiance....know anyone? ----- Original Message ----- From: David VanHorn Date: Thu
Re: [AVR-Chat] Tiny11 oscalator
2004-07-01 by David VanHorn
At 02:04 PM 7/1/2004 -0500, Michael Haisley wrote: >Looks easy, but a quick thought, you might want to drive it through >the ic, not the parallel port, they are easy to blow, and its an >expensive, or impossible fix when you do... > >I did a similar project about a year ago, but
Re: [AVR-Chat] Tiny11 oscalator
2004-07-01 by Michael Haisley
Looks easy, but a quick thought, you might want to drive it through the ic, not the parallel port, they are easy to blow, and its an expensive, or impossible fix when you do... I did a similar project about a year ago, but I simply used 3 pins, and had my program set them to hi,l
Re: [AVR-Chat] Tiny11 oscalator
2004-07-01 by David VanHorn
At 02:53 PM 7/1/2004 +0000, Dave Mucha wrote: >Hi all, > >I am looking at the tiny11 and crystals/oscalators. > >As you may know, I an looking at different families of chips to >figure out which will be better/more uselful to learn. The PIC and >AVR both seem relativley equal. >
cannot read the EEPROM!
2004-07-01 by jay marante
i cannot read the contents of my mega16 EEPROM to AVRstudio4.09 simulator! please help... but im pretty sure that if i change the simulator's EEPROM content and PROGRAM the chip through the STK500 board, it updates the internal EEPROM. i just cant read it back to the simulator. i
Tiny11 oscalator
2004-07-01 by Dave Mucha
Hi all, I am looking at the tiny11 and crystals/oscalators. As you may know, I an looking at different families of chips to figure out which will be better/more uselful to learn. The PIC and AVR both seem relativley equal. Does the tiny11 have an internal oscalator ? It appears t
RE: [AVR-Chat] Re: ATTiny11 Group buy
2004-06-30 by David VanHorn
At 09:04 AM 7/1/2004 +1000, Claxton, Dean J wrote: >I'd be interested, but am in Australia. Dunno how much postage etc would >cost. IIRC we already had some Australian buyers? Amazing thing this is.. We could end up on Atmel's key customer list if we keep going! :)
RE: [AVR-Chat] Re: ATTiny11 Group buy
2004-06-30 by Claxton, Dean J
I'd be interested, but am in Australia. Dunno how much postage etc would cost. Regards Dean Claxton -----Original Message----- From: Randy & Zonya Ledyard [mailto:rledyard@bigfoot.com] Sent: Wednesday, 30 June 2004 11:18 PM To: AVR-Chat@yahoogroups.com Subject: RE: [AVR-Chat] Re:
Re: asm in ICCAVR
2004-06-30 by Yang Wang
Glad to find this post. It showed me how to embed assembly code in the C code. Does anyone know if there is some ICCAVR documentation introducing how to embed assembly code in the C code? I cannot find in their help documentation at all. Thanks! Yang --- In AVR-Chat@yahoogroups.c
Re: [AVR-Chat] 4 Serial Ports
2004-06-30 by wagner
Paul Maddox wrote: > Dave, > >> Can you do clocked serial on a couple of pins, maybe in a ring, or >> share clock and separate data lines? > > I could, though There will be other stuff going on, so I'd rather not > have to depend on bit banging. I would think twice. The processin
RE: [AVR-Chat] Re: ATTiny11 Group buy
2004-06-30 by Randy & Zonya Ledyard
Would anybody here be interested in a less than rail quantity? I would split a rail with someone if they were interested...I don't really need 50 of them myself, 25 would be fine > -----Original Message----- > From: Chetan Bhargava [mailto:list1@bhargavaz.com] > Sent: Tuesday, Ju
Re: [AVR-Chat] 4 Serial Ports
2004-06-30 by Paul Maddox
Reza, > I used a bridge (an ATmega163) and other micros were > 163 also. I was build a bridge board which > periodically switches between all channels which were > connected to 163 using a MAX232 a buffer. Thanks, another good soloution! Paul
Re: [AVR-Chat] 4/6 digit multplexed clock
2004-06-30 by Reza
--- Sal Brisindi wrote: > Hi All, > Did anyone here ever write code for a 4 or 6 > multiplexed digit clock > using a AVR? The MM5314 4/6 digit clock ic is > getting scarce and > expensive so I would think a AVR based one would be > great. I do have > a bunch of AT90S2313's to pla
Re: [AVR-Chat] 4 Serial Ports
2004-06-30 by Reza
--- Paul Maddox wrote: > Dear all, > > anyone have any idea how I can add an extra two > serial ports to a Mega128? > I basically want two extra ports for communicating > with two other Mega128's, > doesn't need to be super fast 192Kbaud will be fast > enough. > > Paul > > > Hi.
Re: [AVR-Chat] Re: ATTiny11 Group buy
2004-06-29 by Dave VanHorn
At 08:15 PM 6/29/2004 +0000, Chetan Bhargava wrote: >I haven't used AVRISP. I think you are already signed up! Right? Yes, all taken care of.
Re: ATTiny11 Group buy
2004-06-29 by Chetan Bhargava
Hi Dave, Minimun individual quantity is 50 as they come in tubes of 50. I'm handling the group buy Q/A at cbhargava a*t gmail.com. Please bug me at this address for faster response. Regards, Chetan Bhargava --- In AVR-Chat@yahoogroups.com, "Dave Mucha" wrote: > Sound interesting.
Re: ATTiny11 Group buy
2004-06-29 by Chetan Bhargava
I haven't used AVRISP. I think you are already signed up! Right? Regards, Chetan Bhargava > Actually, I changed my mind. I have a recent project in a 2343, that should port directly to the tiny-11. > > Can anyone verify that an AVRISP will program the T11? > It says so in the AVR
Re: ATTiny11 Group buy
2004-06-29 by Chetan Bhargava
Part number ATTiny11-6PC minimum order qty required to get that price is 650 Regards, Chetan --- In AVR-Chat@yahoogroups.com, "Sean Ryan" wrote: > Which chip version are you looking at buying? How many do you need > to purchase to get that price? >
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Paul Maddox
Magnus/Dave/all, > Had to look at the pinout, haven't used the 128 in a while. No, i2c/TWI > are pins 25 & 26, UART1 uses pins 27 & 28. You'd use the same i2c-bus to > communicate with both slaves. I2C or SPI it is then, off to have a play, thanks again! Paul
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Magnus Johansson
> that would get me a third, but isn't the i2c port the same pins as the > second UART? Had to look at the pinout, haven't used the 128 in a while. No, i2c/TWI are pins 25 & 26, UART1 uses pins 27 & 28. You'd use the same i2c-bus to communicate with both slaves.
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Paul Maddox
David, > Use SPI, and make it a ring? There's an idea.... I need to look at the pins and see whats in use... Paul
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by David VanHorn
Use SPI, and make it a ring?
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Paul Maddox
Magnus, > There's always the 16550/16552. looking at them, not ideal, but good.. > Are you using the i2c-port, how about > connecting the slaves to that bus instead? that would get me a third, but isn't the i2c port the same pins as the second UART? Paul
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Magnus Johansson
> The other two are slaves from the master, so I could use my own 'serial' > ports by bit banging, but I'd rather avoid the over head if possible. > Ideally I'd love a dual UART chip with buffer :-) There's always the 16550/16552. Are you using the i2c-port, how about connecting
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Robert Adsett
At 11:01 AM 6/29/04 +0100, you wrote: >The other two are slaves from the master, so I could use my own 'serial' >ports by bit banging, but I'd rather avoid the over head if possible. >Ideally I'd love a dual UART chip with buffer :-) You mean something like a 16c552? (National an
Re: ATTiny11 Group buy
2004-06-29 by Sean Ryan
Which chip version are you looking at buying? How many do you need to purchase to get that price? --- In AVR-Chat@yahoogroups.com, "Chetan Bhargava" wrote: > Hi All, > > As announced at the Atmel seminar, the Tiny11 device is available at > $0.25 each. Would anyone be interested
Re: sending code to a chip - Palm and bootloaders
2004-06-29 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Dave Mucha" wrote: > does anybody have any experiance > with PALM's and AVR's and/or > bootloaders ? How about basing the controller on the AVR Butterfly? That comes with a bootloader that is compatible with AVR Prog, which is free from Atmel. Th
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by Paul Maddox
Dave, > Can you do clocked serial on a couple of pins, maybe in a ring, or share clock and separate data lines? I could, though There will be other stuff going on, so I'd rather not have to depend on bit banging. > Does everyone need to talk to everyone, or master to two slaves,
Re: [AVR-Chat] 4 Serial Ports
2004-06-29 by David VanHorn
At 09:16 AM 6/29/2004 +0100, Paul Maddox wrote: >Dear all, > >anyone have any idea how I can add an extra two serial ports to a Mega128? >I basically want two extra ports for communicating with two other Mega128's, >doesn't need to be super fast 192Kbaud will be fast enough. Can
4 Serial Ports
2004-06-29 by Paul Maddox
Dear all, anyone have any idea how I can add an extra two serial ports to a Mega128? I basically want two extra ports for communicating with two other Mega128's, doesn't need to be super fast 192Kbaud will be fast enough. Paul
Re: [AVR-Chat] Re: servo position
2004-06-29 by erikc
----- Original Message ----- From: "David VanHorn" To: ; Sent: Tuesday, June 29, 2004 01:04 Subject: Re: [AVR-Chat] Re: servo position > > Sounds like you need at least two switches, so you can indicate locked, unlocked, and "somewhere inbetween". Also another switch to indicate
Example Code for MAX1139 (1136/7/8)
2004-06-29 by Bryant, Bob
Hi, Has anyone worked with the MAXIM 1139 A/D converter and have any code samples they wish to share. Thanks, Bob Bryant Racal Instruments
Re: [AVR-Chat] Re: ATTiny11 Group buy
2004-06-29 by David VanHorn
At 11:52 PM 6/28/2004 +0000, Chetan Bhargava wrote: >These are in a tube of 50.. Actually, I changed my mind. I have a recent project in a 2343, that should port directly to the tiny-11. Can anyone verify that an AVRISP will program the T11? It says so in the AVRISP control panel
Re: [AVR-Chat] Re: servo position
2004-06-29 by David VanHorn
Sounds like you need at least two switches, so you can indicate locked, unlocked, and "somewhere inbetween".
Re: [AVR-Chat] Re: servo position
2004-06-28 by jay marante
actually, im trying to drive a bolt thru the servo. the bolt will serve as a door lock. my problem is that if ever a brown out occurs, a simple switch on the back-up power will just power up the MCU and automatically turns the servo and drives the bolt to open. and then i would t
Re: servo position
2004-06-28 by Phil
--- In AVR-Chat@yahoogroups.com, David VanHorn wrote: > > Depends on the encoder. Gray code or binary units give absolute, quadrature gives relative. > true but I was assuming that he didn't want to get to a complex solution or burn a large number of I/O lines. possibly a bad ass
Hi-Lo All-07 Programmer
2004-06-28 by Claxton, Dean J
All, I have the opportunity to purchase a Hi-Lo All-07 programmer at what I thought was a fairly reasonable price ($300), but I'm not sure I'd really use it. I believe it can program around 3000 devices, including AVR's. Any Australian residents on the list interested? Here is th
Re: ATTiny11 Group buy
2004-06-28 by Chetan Bhargava
These are in a tube of 50.. Let me know if you are interested. Regards, Chetan > > Sound interesting. > > Mouser has them for about $ 1.58 and Digi-Key lists them in my latest > catalogue for the same, but the web site no lists them for 54 cents. > > seems a little small for my g
Re: servo position
2004-06-28 by Dave Mucha
--- In AVR-Chat@yahoogroups.com, David VanHorn wrote: > At 08:05 PM 6/28/2004 +0000, Phil wrote: > > >Some one did do just that. check out this page - > > > > > >but wouldn't an optical encoder simply tell you relative motion (not > >absolute)? > > Depends on the encoder. Gray co
Re: [AVR-Chat] Re: servo position
2004-06-28 by David VanHorn
At 08:05 PM 6/28/2004 +0000, Phil wrote: >Some one did do just that. check out this page - > > >but wouldn't an optical encoder simply tell you relative motion (not >absolute)? Depends on the encoder. Gray code or binary units give absolute, quadrature gives relative. >How import
Re: 4/6 digit multplexed clock
2004-06-28 by Stefan Wimmer
--- In AVR-Chat@yahoogroups.com, "Sal Brisindi" wrote: > Hi All, > Did anyone here ever write code for a 4 or 6 multiplexed digit clock > using a AVR? The MM5314 4/6 digit clock ic is getting scarce and > expensive so I would think a AVR based one would be great. I do have > a bu
Re: servo position
2004-06-28 by Phil
Some one did do just that. check out this page - but wouldn't an optical encoder simply tell you relative motion (not absolute)? How important is it to know the initial position? You can command a servo to a known position and go from there. If you want to know position after a p
Re: servo position
2004-06-28 by upand_at_them
If you're real crafty you might be able to fit an optical encoder ring inside the servo housing. Or could you store the last position in the MCU before shutdown? Or do a calibration sequence? Mike --- In AVR-Chat@yahoogroups.com, jay marante wrote: > when i power-up my MCU, is it
Re: servo position
2004-06-28 by Dave Mucha
--- In AVR-Chat@yahoogroups.com, David VanHorn wrote: > At 07:30 AM 6/28/2004 -0700, jay marante wrote: > > >when i power-up my MCU, is it possible for me to know the position of > >my servo motor if it is in a 0, 90, 180, etc, degree? how? > >TIA > > For remote control servos, n
Re: [AVR-Chat] servo position
2004-06-28 by David VanHorn
At 08:41 AM 6/28/2004 -0700, jay marante wrote: >what kind of sensor? where should i put 'em? That's up to you. Switches, pots, lots of options.