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2004-10-04 by Robert Adsett
At 08:28 PM 10/4/04 +0000, you wrote: >Thanks for your feedback Robert and Dave > >The (very) distant goal is to control an injection molding machine >using just low cost microcontrollers instead of plc's. >However at this point just knowing if turning on and off a fan or >any ot
2004-10-04 by Bruce Parham
Be that as it may, does this mean that Radio Shack is going to drop components altogether? B. Ken wrote: > > IMO, Radio Shacks pricing is more than 2 times. I think it's on the > order of 3 to 4 times but given that they pacakge the parts in nice > bubble packs for display and ha
2004-10-04 by Robert Adsett
At 05:21 PM 10/4/04 +0000, you wrote: >I would be greatly appreciate it if anyone >could share any pointers regarding this subject. >I am investigating if using an avr to control the operation >of a motor is feasible (on/off only in regular intervals). Do you have a few more deta
2004-10-04 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "mech_research" wrote: > I am investigating if using an avr to control the operation > of a motor is feasible (on/off only in regular intervals). The short answer is that it is feasible. The longer answer is that to do so, you may need one or more
2004-10-04 by mech_research
Thanks for your feedback Robert and Dave The (very) distant goal is to control an injection molding machine using just low cost microcontrollers instead of plc's. However at this point just knowing if turning on and off a fan or any other low power AC motor is possible and the re
2004-10-04 by Dave VanHorn
At 12:21 PM 10/4/2004, mech_research wrote: >I would be greatly appreciate it if anyone >could share any pointers regarding this subject. >I am investigating if using an avr to control the operation >of a motor is feasible (on/off only in regular intervals). Certainly, but the AV
2004-10-04 by Ken
IMO, Radio Shacks pricing is more than 2 times. I think it's on the order of 3 to 4 times but given that they pacakge the parts in nice bubble packs for display and have to pay for retail space I can't see them being able to keep the doors open any other way. I buy from them if I
2004-10-04 by mech_research
I would be greatly appreciate it if anyone could share any pointers regarding this subject. I am investigating if using an avr to control the operation of a motor is feasible (on/off only in regular intervals).
2004-10-04 by Dave Mucha
--- In AVR-Chat@yahoogroups.com, "joedella" wrote: > > Radio Shack is selling all of their component parts at 1/2 price > through the month of October. These are the parts that are in the > cabinets in their stores. I saw the ad in the back of my Circuit > Cellar magazine, and it
2004-10-04 by Larry Barello
I have not used the ICE200 with 4.x yet. Does reset (shift-F5) solve the problem? -----Original Message----- From: John Samperi [mailto:samperi@ampertronics.com.au] Sent: Sunday, October 03, 2004 4:40 PM To: AVR-Chat@yahoogroups.com Subject: RE: [AVR-Chat] (Was) Re: Why won't thi
2004-10-03 by John Samperi
At 10:09 AM 3/10/04 -0700, you wrote: > >You can do almost anything on the old ICE200 by conditionally compiling for >various chips. Larry (and everyone else using the ICE200), I have a problem with Studio 4.xx (all version to date) which Atmel cannot replicate or fix. I have bee
2004-10-03 by upand_at_them
If that includes the circuit boards, I'd pick up a few of those. The 276-168 and 276-150 are very useful. Mike --- In AVR-Chat@yahoogroups.com, "joedella" wrote: > > Radio Shack is selling all of their component parts at 1/2 price > through the month of October. These are the par
2004-10-03 by Larry Barello
You can do almost anything on the old ICE200 by conditionally compiling for various chips. One thing the old ICE200 does that NONE of the jtag's do is cycle counting. So you can measure, directly, how long something takes. Only the newer PWM modes and universal serial interface a
2004-10-03 by joedella
Radio Shack is selling all of their component parts at 1/2 price through the month of October. These are the parts that are in the cabinets in their stores. I saw the ad in the back of my Circuit Cellar magazine, and it does work at the store, if you ask about it. 1/2 price proba
2004-10-03 by Henry Carl Ott
It's all relative, but I don't think 99.00 USD for an ice-200 is really 'quite costly'. Especially compared to some of the higher end ICEs. Admittedly the ice200 is on the out the way out, and jtag / debug wire are going to be the direction for low cost ICE. But, I found the ice-
2004-10-03 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "alanganes" wrote: > ... I'm just a beginner ... > I am obviously missing something. > Any ideas?? The suggestion has been made that you get an ICE200. I think these are quite costly. An alternative would be to switch to an AVR that has the JTAG p
2004-10-03 by alanganes
--- In AVR-Chat@yahoogroups.com, "alan_probandt" wrote: > Hello, > > > > > I looked at the code and I couldn't find anything wrong. Situations > like these are why I bought an ICE200 emulator. It becomes easy to Alan, Thanks for the reply. I do appreciate the reformatting. I had
2004-10-02 by Mark Jordan
On 2 Oct 2004 at 8:54, Dave VanHorn wrote: > > I don't see you waiting until the write is complete here, is there a > possibility you're coming back in for another write before this write is > complete? > I forgot to include that write complete check here, but it does exist befor
2004-10-02 by Dave VanHorn
At 03:49 AM 10/2/2004, MuRaT KaRaDeNiZ wrote: >AT90S2313 micro had been a notorious microcontroller >in terms of its EEPROM data content reliability. Try >new ATtiny2313 micros, they have a real built-in BOD >circuitry. Some of the EEPROM data loss issues come >from non-existence
2004-10-02 by Dave VanHorn
> > I have a 2313 working on a very noisy environment and subject >to eventual crashes that corrupt the EEPROM. Any address. > And I'm not allowed to modify the hardware at this time. > > Well, two 'nops' inserted in the EEPROM write routine seem to >have cured the problem. See b
2004-10-02 by Mark Jordan
I seem to have found a cure for my EEPROM corruption. For those who doesn't read my original message, it is not that EEPROM address zero corruption due to power brown out mentioned by ATMEL I have a 2313 working on a very noisy environment and subject to eventual crashes that cor
2004-10-02 by MuRaT KaRaDeNiZ
AT90S2313 micro had been a notorious microcontroller in terms of its EEPROM data content reliability. Try new ATtiny2313 micros, they have a real built-in BOD circuitry. Some of the EEPROM data loss issues come from non-existence of a BOD circuit. Hope this helps. Murat Karadeniz
2004-10-02 by James Russo
> Note that for short RS485 runs using these chips, I've > found that the terminator is generally unnecessary. My situation is that with the terminators on, it doesn't keep the RO high. With them off it does. I have put pull-up/pull-down resistors and activated the terminators an
2004-10-02 by Brian Dean
Hi James, On Fri, Oct 01, 2004 at 04:54:37PM -0400, James Russo wrote: > Thanks for the reply. Right now I am stuck with 481 on the board, but it > seems like it will meet my requirements. Just to clarify - the MAVRIC-II that you have uses the MAX487 transceiver, even though the
2004-10-02 by Daniel Boyer
My current project takes input from an RF receiver chip (the KH series from Linx Technologies)and then reacts to the state of the 8 output lines (which represent button/line activations on the Transmitter side). If I can ever get this full prototype built (see the "Mega8 Programi
2004-10-02 by Daniel Boyer
Well, I have now tried everything... Including trying to use parallel high voltage programing, all to no avail... When I use the high voltage mode, I can at least enter programing mode, but I can't program (and reading the signature results in 0xff 0xff 0xff 0xff which is of cour
2004-10-01 by John Samperi
At 04:54 PM 1/10/04 -0400, you wrote: >Thanks for the reply. Right now I am stuck with 481 on the board, but it >seems like it will meet my requirements. I've been reading some more >about this throughout the day and it seems that having to bias the bus >(using a pullup and pulld
2004-10-01 by fjch100
Hi, I am using WINAVR GCC the last build in winxp, and try to build a bootloader for an ATMEGA32. When "make all" give this error: Compiling: boot32M.c avr-gcc -c -mmcu=atmega32 -I. -gstabs -Os -funsigned-char - funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict- prot
2004-10-01 by James Russo
Thanks for the reply. Right now I am stuck with 481 on the board, but it seems like it will meet my requirements. I've been reading some more about this throughout the day and it seems that having to bias the bus (using a pullup and pulldown) configuration is quite commonly done.
2004-10-01 by Lasse Madsen
Hi James I have a suggestion for you not a solution to your particular problem. I've used RS485 for a long time and I've found the (more expensive) auto bias self terminating IC's from maxim to work perfectly where others failed! /Regards Lasse M. -----Original Message----- From:
2004-10-01 by Ken Holt
We use one of the Rabbit core modules to control motors and a camera - the series has a very wide selection of features. The boards are small, powerful and the price is moderate. Dave Mucha wrote: >--- In AVR-Chat@yahoogroups.com, "phyock" wrote: > > >>I am looking for a producti
2004-10-01 by James Russo
You may want to look at the MAVRIC board from BD Micro. They just came out with a new revision. http://www.bdmicro.com/mavric-iib/ I have about three of them for various project (both personal and school related) and they work well for me. good luck, -jr phyock wrote: > I am look
2004-10-01 by Dave Mucha
--- In AVR-Chat@yahoogroups.com, "phyock" wrote: > I am looking for a production microcontroller/computer board that > has 50+/- I/Os with drivers, two RS232 ports, RS485 port, LCD, 10+/- > ADCs, 3 DACs, Ethernet, 512K+/- memory. We also want stand-alone IDE > testing and field f
2004-10-01 by James Russo
Hello Everyone, I am working on getting two MAVRIC-II (Mega128) boards talking using RS485 (MAX481 to uart1). I am using a short segment of (
2004-10-01 by phyock
I am looking for a production microcontroller/computer board that has 50+/- I/Os with drivers, two RS232 ports, RS485 port, LCD, 10+/- ADCs, 3 DACs, Ethernet, 512K+/- memory. We also want stand-alone IDE testing and field flash programmable. We use about 20 a month in small indus
2004-10-01 by alan_probandt
Hello, I looked at the code and I couldn't find anything wrong. Situations like these are why I bought an ICE200 emulator. It becomes easy to try lots of little variations in order to find what the one little thing is that is preventing success. Anyway, I reformatted the code to
2004-09-30 by alanganes
Hi all, I'm just a beginner with all of this, so if my code looks sloppy, please go easy on me! I wrote this to make a bar graph type display using an ATtiny15. The idea is to use the ADC to read a dc voltage on pin 5, and compare that (8 bit) value to the expected values for 1V,
2004-09-30 by Edson L. Bestvina
Daniel Sorry... this is correct... but when I use ICP I mantain that connection... Then... I don´t know what´s happen. Try extend your board (by wire) for a "DIP" connection and load in parallel mode... Edson -----Mensagem original----- De: Daniel Boyer [mailto:dpboyer@dpicts.com
2004-09-30 by Dave VanHorn
At 10:22 AM 9/30/2004, Daniel Boyer wrote: >Okay, I have tried all the suggestions and even made a SMT to DIP >converter so that I could plug the chip into the STK500 socket and >nothing is working... Is it possible that this chip was programmed with some hosed fuse settings? I'v
2004-09-30 by Dave Hylands
Hi Daniel, I assembled a Mega-Bitty, which uses a Mega-8. Schematics are available here: http://groups.yahoo.com/group/megabitty/files/MEGAbitty%20Instructions/ You'll need to join the Yahoo group: http://groups.yahoo.com/group/megabitty/ I had no troubles programming it using my
2004-09-30 by Daniel Boyer
Okay, I have tried all the suggestions and even made a SMT to DIP converter so that I could plug the chip into the STK500 socket and nothing is working... I don't know what could be going wrong... I really need to get this cicuit finish (and everything is finished except for prog
2004-09-30 by Daniel Boyer
>Is necessary to make one connection between the PC2 to BSEL2 (only for ATmega8) in the STK500 board. > >Edson I thought that was only for high voltage programing, not ISP? Daniel
2004-09-30 by Edson L. Bestvina
Daniel Is necessary to make one connection between the PC2 to BSEL2 (only for ATmega8) in the STK500 board. Edson -----Mensagem original----- De: Daniel Boyer [mailto:dpboyer@dpicts.com] Enviada em: quarta-feira, 29 de setembro de 2004 18:24 Para: AVR-Chat@yahoogroups.com Assunto
2004-09-30 by Edson L. Bestvina
--- In AVR-Chat@yahoogroups.com, "Tomek" wrote: Tomek I recommend for you the PDIUSBD12 from Philips. And use the program D12Test.exe by PHILIPS (used only for tests). Edson > Hi all! > > I'm just looking for some stand-alone USB controller to work with > my AVR. I found SL811HS
2004-09-30 by Paul Maddox
Tomek, if you want full bandwidth use the FTDI 245 chipset, this outputs data in parallel rather than serial, I used this for a project (www.waveterm.com) and it works a treat.. but it can really hammer the AVR when its in full flight! Paul ----- Original Message ----- From: "Tom
2004-09-30 by Bruce Parham
Ok, I broke down and checked the STK500 schematic. The six pin ISP header, J906, is connected as follows: 1 - MISOT (O.C. output with 1K pullup) 2 - VTG (hardwired, no jumper) 3 - SCKT (O.C. output with 1K pullup) 4 - MOSIT (emitter of common-base Q901B with 47K pullup) 5 - /PROG
2004-09-29 by Daniel Boyer
> Pin-18 (AVCC) is floating; it needs to be connected to the > supply. And at least one .1 mfd > cap between the supply and ground for bypass. Didn't reallized that AVCC had to be connected if I wasn't using the Analog circuty...maybe this is my problem...Thats a quick and easy f
2004-09-29 by Daniel Boyer
> > The target is powered from somewhere, right? > > What do you get when you try to read the signature? > I thought that they STK500 provided power (as long as the Vtarget Jumper was on, which it is) via the Vtg pin and Gnd pin of the six pin header... If this is not correct the
2004-09-29 by Bruce Parham
Pin-18 (AVCC) is floating; it needs to be connected to the supply. And at least one .1 mfd cap between the supply and ground for bypass. Bruce Dave VanHorn wrote: > > > > >(http://www.dpicts.com/ForumPics/mega8a-2.jpg) to attach to the 6 pin > >connector on the stk500 to program
2004-09-29 by Dave VanHorn
> >(http://www.dpicts.com/ForumPics/mega8a-2.jpg) to attach to the 6 pin >connector on the stk500 to program the chip. I am not changing any >jumpers or anything on the stk500 (maybe this is my problem). I have >made 4 different PCBs thinking that I had a trace wrong or broken, b