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2005-01-06 by Bernd Felsche
On Thursday 06 January 2005 09:14, alan_probandt wrote: > If all else fails, have what you would like to print on the screen > and then do Alt-PrintScreen. This puts the screen image into the > clipboard. Maybe you can get hold of something like a2ps (GNU software). You can creat
2005-01-06 by Mike Murphree
On Jan 4, 2005, at 8:58 AM, Kathy Quinlan wrote: > > Jose Fuentes wrote: > >> There are several AVR based USB controllers like the >> AT43USB351M. Have any of you used them? >> >> Jose >> > > I have the dev kit for the 355M, but I find it hard to use due to lack > of documentatio
2005-01-06 by alan_probandt
If all else fails, have what you would like to print on the screen and then do Alt-PrintScreen. This puts the screen image into the clipboard. Run an image editor like PhotoShop, PaintShop Pro, or GIMP. Paste the clipboard into a new image and remove all that you don't want to pr
2005-01-05 by Geert De Pecker
Hi, I was wondering if one can make the printout of an assembler file in Studio having syntax coloring like the onscreen editor. Geert
2005-01-05 by Geert De Pecker
Jim, Thanks. This seems to work ok. Geert jimmcguffin wrote: > > The problem is the "negate" step. You cannot negate the two bytes > separately. Negation is the same as a ones-complement followed by > adding one. This is covered in Atmel's application note #202. They > do it like
2005-01-05 by Joel Kolstad
--- In AVR-Chat@yahoogroups.com, Kathy Quinlan wrote: > I have the dev kit for the 355M, but I find it hard to use due to lack > of documentation and example code for beginners, but I am hopping that > after reading Jan ALexson's USB for embedded design (I think that is the > tit
2005-01-05 by Jim Wagner
Allegro makes a number of hall based current sensors. They provide isolation you would need in this application. You should be able to read the output of a sensor with an ADC and use the micro to run some of the motor control circuits. Jim On Wed, 5 Jan 2005 15:52:28 +0100 Svenn
2005-01-05 by Jim Wagner
I suggest using RS485. All the devices sit in "parallel" on a single bus. You DO NOT need additional enable lines. Assign each device an address and make the address the initial part of the message. The biggest "trick" with '485 is what to do when no device has electrical control
2005-01-05 by Larry Barello
All your answers should be here: http://www.avrfreaks.net/AVRGCC/coding.php Your english is great. -----Original Message----- From: wilmar cabrera Spanish version: Hola amigos del grupo. Soy un principiante en la familia AVR y el compilador WinAVR. Estoy realizando una aplicación
2005-01-05 by Svenn Dahlstrøm
Hi all! I have this application that controls a 220W AC motor. This motor needs some protection. And the Mega16 need to know about it. Do any of you guys know of a cuircuit or any chip to sense the current to the motor, and give the Mega16 feedback, so the motor can bee shut down
2005-01-05 by wilmar cabrera
Spanish version: Hola amigos del grupo. Soy un principiante en la familia AVR y el compilador WinAVR. Estoy realizando una aplicación con un atmega162 donde uso 64 kb de SRAM externa y donde voy a usar muchas de las interrupciones. El problema es que no se como configurar estas c
2005-01-05 by Ridho Alpha
hello this is my first project with ATTINY, so compact...ok...i want to use 2 ATTINY2313 as slave and 1 ATMEGA16 for master...since for slave AVRs needs to make low the /SS for SPI...but the ATTINY2313 has no /SS pin.... so can i use EXTERNAL INTERRUPT 0 pin from ATTINY2313 (slav
2005-01-05 by Svenn Dahlstrøm
Hi all! I have this application that controls a 220W AC motor. This motor needs some protection. And the Mega16 need to know about it. Do any of you guys know of a cuircuit or any chip to sense the current to the motor, and give the Mega16 feedback, so the motor can bee shut down
2005-01-05 by Paul Maddox
Stuart, > I have used rs232 in the past, but it means either: > > 1) Creating a serial communications ring where Master talks to slave 1, > slave 1 talks to slave 2 and slave 2 talks to the master. If one of the > slaves die, its hard to tell which is at fault. > 2) Having a mast
2005-01-05 by Paul Maddox
James, > Once I hook up the FTDI chip... > > > What does the AVR "see"? > Is it just serial data? If you buy the serial version, yes. There's alsoa parallel version. > Do we have to included any USB aware code on the AVR? nope, just receive and send data, simple. > What kind of U
2005-01-05 by Svenn Dahlstrøm
Hi Stuart You can use RS485 with the uart and same protocol as RS232. You only need 1 extra pin for enable. 2-wire(twisted pair) + com, smaller chip (8pin), I recomend SN75LBC184 from Texas (allows 128 devices on the bus), cheep, under 0.5US. http://focus.ti.com/general/docs/lit/
2005-01-05 by Alex Shepherd
> In my previous efforts the slaves have always been on the > same PCB, so I have been used SPI. What about I2C or TWI as Atmel call it? Alex
2005-01-05 by Stuart Whelan
I am designing up a system where a single master AVR has to talk to a heap of Slave AVR's. In my previous efforts the slaves have always been on the same PCB, so I have been used SPI. Now the slaves are going to be on different PCB's, which comms cables running between them. The
2005-01-04 by Phillip Vogel
In the simplest setup, the AVR just sees async serial data. It doesn't know anything at all about USB. On the PC end, you install drivers from FTDI or Lynx that make the device look like a comm port. Dead simple. There are lots of documents at the FTDI web site. If you want to ju
2005-01-04 by Gus
FTDI+VCP driver=100%serial port! actually even better since you can send data as fast as 3Mb no USB work on your PC or on yor embedded device USB serial Gus Issa www.ghielectronics.com FAT file system made easy! --- In AVR-Chat@yahoogroups.com, James Washer wrote: > > For those o
2005-01-04 by James Washer
For those of us who have never played with USB.... Once I hook up the FTDI chip... What does the AVR "see"? Is it just serial data? Do we have to included any USB aware code on the AVR? What kind of USB device driver is required on the host pc to talk to our device? Does the FTDI
2005-01-04 by Dave VanHorn
At 10:41 AM 1/4/2005, Ridho Alpha wrote: >so....you suggest that....for SPI and for clock for "master" AVR should be >slower than the slave???is it what you mean??? > I'm not making reccomendations in that direction. I'm saying that IF they are different speeds, then you'll have
2005-01-04 by Lasse Madsen
Hi Dave, All crystal oscillators are "amplifiers" to some extent I don't think you would see any huge current draws from adding the capacitor although I understand your point. And yes the chip was an ATm323 running at 8MHz as far as I remember. Best regards Lasse _____ From: Dave
2005-01-04 by Dave VanHorn
At 12:01 PM 1/4/2005, Lasse Madsen wrote: >Hi Dave, > > >That would be bad. There's nothing to balance in this case, you're just > >using the xtal sections as amplifiers. > >I disagree, depending on the internal design of the oscillator not using a >capacitor could cause it to st
2005-01-04 by Lasse Madsen
Hi Dave, >That would be bad. There's nothing to balance in this case, you're just >using the xtal sections as amplifiers. I disagree, depending on the internal design of the oscillator not using a capacitor could cause it to stop oscillate (I have tried it without just now and it
2005-01-04 by Ridho Alpha
so....you suggest that....for SPI and for clock for "master" AVR should be slower than the slave???is it what you mean??? Dave VanHorn wrote: At 09:56 AM 1/4/2005, Ridho Alpha wrote: >wow..thank you for your replies....thank you.... > >now if i connect crystal and 2 capasitors fo
2005-01-04 by Phillip Vogel
Linx modules have the FTDI chip and all the glue in a 16 pin package. Hook up VCC, GND, TX, RX and 4 wires to the USB connector and you're good to go. Available from Digikey. Piece of cake. Phillip > -----Original Message----- > From: Paul Maddox [mailto:P.Maddox@signal.qinetiq.c
2005-01-04 by Dave VanHorn
At 09:56 AM 1/4/2005, Ridho Alpha wrote: >wow..thank you for your replies....thank you.... > >now if i connect crystal and 2 capasitors for each AVR..is it the best idea?? It's probably the easiest to get working right, and less EMI problems if done right. >so,i make 1 external c
2005-01-04 by Kathy Quinlan
Jose Fuentes wrote: > There are several AVR based USB controllers like the > AT43USB351M. Have any of you used them? > > Jose > I have the dev kit for the 355M, but I find it hard to use due to lack of documentation and example code for beginners, but I am hopping that after read
2005-01-04 by Ridho Alpha
wow..thank you for your replies....thank you.... now if i connect crystal and 2 capasitors for each AVR..is it the best idea??so,i make 1 external crystal oscillator for each AVR...what do you think???i want to do multiprocessing with SPI... thank you Do you Yahoo!? Send a season
2005-01-04 by Jose Fuentes
There are several AVR based USB controllers like the AT43USB351M. Have any of you used them? Jose AT43USB351M http://www.atmel.com/dyn/resources/prod_documents/3302s.pdf Full-speed/Low-speed USB Microcontroller with ADC and PWM Features AVR® Microcontroller-based Function Contr
2005-01-04 by Dave VanHorn
At 08:46 AM 1/4/2005, Lasse Madsen wrote: >While we are at it (EMI) one should probertly also connect a 10nF >capacitor to the last unused XTAL2 output to balance the pierce. That would be bad. There's nothing to balance in this case, you're just using the xtal sections as amplif
2005-01-04 by Lasse Madsen
While we are at it (EMI) one should probertly also connect a 10nF capacitor to the last unused XTAL2 output to balance the pierce. On the MASTER a 1Mohm between XTAL1/2 and a series resistor from XTAL2 to crystal of a hundred ohms is a good idea. take output from XTAL2 pin direct
2005-01-04 by Dave VanHorn
At 08:14 AM 1/4/2005, you wrote: >No look at the oscillator schematics it's a standard pierce > >XTAL1 = Input >XTAL2 = Output > >MASTER CHIP: Crystal between XTAL1 and XTAL2 with 2 decoupling caps. > >SLAVE CHIP #1: Connect XTAL1 to MASTER XTAL2 > >SLAVE CHIP #2: Connect XTAL1 t
2005-01-04 by Lasse Madsen
No . look at the oscillator schematics . it's a standard pierce . XTAL1 = Input XTAL2 = Output MASTER CHIP: Crystal between XTAL1 and XTAL2 with 2 decoupling caps. SLAVE CHIP #1: Connect XTAL1 to MASTER XTAL2 SLAVE CHIP #2: Connect XTAL1 to SLAVE CHIP #1 XTAL2 SLAVE CHIP #3: Conn
2005-01-04 by Paul Maddox
Hi, > >I want to add USB to a circuit with a ATmega > >microcontroller, what is the best choice considering > >price, compatibility, and speed? > > FTDI chips work nicely. I second that, FTDI chips are great and they come with drivers for everything!! Paul
2005-01-04 by Paul Maddox
Ridho, > so i can connect pin XTAL1 and XTAL2 to other AVR??? is it true??? is it what you made?? nope, The Crystal oscillator module I use (note this is NOT a crystal) can drive upto ten things direct, So I just take the crystal output and feed it into XTAL1 of each AVR. Paul
2005-01-04 by Leon Heller
----- Original Message ----- From: Lasse Madsen To: AVR-Chat@yahoogroups.com Sent: Tuesday, January 04, 2005 1:14 PM Subject: RE: [AVR-Chat] multiprocessing with AVR (2) No . look at the oscillator schematics . it's a standard pierce . XTAL1 = Input XTAL2 = Output MASTER CHIP: Cr
2005-01-04 by Ridho Alpha
so i can connect pin XTAL1 and XTAL2 to other AVR??? is it true??? is it what you made?? Paul Maddox wrote: Ridho, No idea about your first question. > 2. can i just use 1 RESET and 1 XTAL schematics connected to that 3 AVRs??? I use one Crystal clock (not XTAL) for 5 AVRs on my
2005-01-04 by Paul Maddox
Ridho, No idea about your first question. > 2. can i just use 1 RESET and 1 XTAL schematics connected to that 3 AVRs??? I use one Crystal clock (not XTAL) for 5 AVRs on my latest project, but I do use sperate reset lines (res+cap) so I can use the ISP on each without dropping all
2005-01-03 by jimmcguffin
The problem is the "negate" step. You cannot negate the two bytes separately. Negation is the same as a ones-complement followed by adding one. This is covered in Atmel's application note #202. They do it like this: ;***** Register Variables .def ng1l = r16 .def ng1h = r17 ;*****
2005-01-03 by Ralph Hilton
On Mon, 03 Jan 2005 10:11:39 -0500 you wrote: > >At 09:26 AM 1/3/2005, Jose Fuentes wrote: > > >>I want to add USB to a circuit with a ATmega >>microcontroller, what is the best choice considering >>price, compatibility, and speed? > >FTDI chips work nicely. Olimex recently broug
2005-01-03 by Dave VanHorn
At 09:26 AM 1/3/2005, Jose Fuentes wrote: >I want to add USB to a circuit with a ATmega >microcontroller, what is the best choice considering >price, compatibility, and speed? FTDI chips work nicely.
2005-01-03 by Jose Fuentes
I want to add USB to a circuit with a ATmega microcontroller, what is the best choice considering price, compatibility, and speed? Regards, Jose ___________________________________________________________ 250MB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del m
2005-01-02 by Geert De Pecker
Hi, I have a question about abtaining the absolute value. I want to substract a 1 16bit values from eachother, but when the result is negative, set a bit and get the absolute value of the difference. I thought of the following, but that doesn't seem to work: ... ldi direction, 0
2005-01-02 by Leon Heller
----- Original Message ----- From: Geert De Pecker To: AVR-Chat@yahoogroups.com Sent: Sunday, January 02, 2005 10:21 PM Subject: [AVR-Chat] newbie absolute value Hi, I have a question about abtaining the absolute value. I want to substract a 1 16bit values from eachother, but whe
2005-01-02 by Reza
--- Hamid reza Kabiri wrote: > Hello > > Thanks Ali > > I search for like this,I want for comport ans ppi . > hi; as Hamid reza said, you can use ponyprog see: www.lancos.com or as a result, for a better programmer (fast) google for avreal, it's great and works with most AVR type
2005-01-02 by Richard Reeves
A quick google turns up this: http://www.smsc.com/main/anpdf/an1018.pdf Richard --- "Iz dana u dan ona dolazi i odlazi u talasima" http://www.van-gogh.co.yu/
2005-01-02 by Ralph Hilton
On Mon, 03 Jan 2005 06:02:41 +1300 you wrote: >Why is this Email so big > If someone sends mail in html format to the list then Yahoo can add their picture advert to it. -- Ralph Hilton http://www.ralphhilton.org C-Meter: http://www.cmeter.org FZAOINT http://www.fzaoint.net
2005-01-02 by Eric
Why is this Email so big ----- Original Message ----- From: Lasse Madsen To: AVR-Chat@yahoogroups.com Sent: Monday, January 03, 2005 5:15 AM Subject: RE: [AVR-Chat] xD Card is? An XD card is sony's own format AFAIK. From: rajesh parwani [mailto:rajesh_almighty@yahoo.co.in] Sent: