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Re: [AVR-Chat] Re: Problems with AVRStudio 4.09

2004-08-23 by John Samperi

At 12:06 AM 8/23/04 -0000, you wrote: >John, > >Thanks for the suggestion. I just removed 4.09 and installed 4.10, as >well as downloading and installing the new XML parser from Microsoft. >I got the exact same messages when I ran AVRStudio. Any other help >from anyone would be a

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Re: [AVR-Chat] Problems with AVRStudio 4.09

2004-08-22 by John Samperi

At 01:17 PM 22/08/04 -0000, you wrote: > >I've just installed AVRStudio (4.09) under Windows 98. I created a >project, and imported some code. After I created the project I got >the following messages: snip.... >Error seelcting xml-node 02 >I'm assuming I missed something in my i

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Re: Problems with AVRStudio 4.09

2004-08-22 by Lee

John, Thanks for the suggestion. I just removed 4.09 and installed 4.10, as well as downloading and installing the new XML parser from Microsoft. I got the exact same messages when I ran AVRStudio. Any other help from anyone would be appreciated. Lee --- In AVR-Chat@yahoogroups.c

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Re: [AVR-Chat] Re: ATmega's ADC

2004-08-22 by Dave VanHorn

At 01:27 PM 8/22/2004, Jose wrote: >So, if you use the internal reference there is no need to connect >AREF to an external power source, right? You would probably not want to do that.

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Re: ATmega's ADC

2004-08-22 by Jose

So, if you use the internal reference there is no need to connect AREF to an external power source, right? Jose --- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > At 05:38 PM 8/20/2004, Jose wrote: > > >If I use the internal 2.56V reference, how the AREF pin should be > >conn

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Problems with AVRStudio 4.09

2004-08-22 by Lee

I've just installed AVRStudio (4.09) under Windows 98. I created a project, and imported some code. After I created the project I got the following messages: Error seelcting xml-node 02 Error seelcting xml-node 02 StudioApp AddInitialView Can not find any file types, check defini

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Re: [AVR-Chat] PID Controller ...

2004-08-21 by Charlie Heath

Try this link: http://elm-chan.org/works/smc/report_e.html Charlie ----- Original Message ----- From: "otojam11" To: Sent: Saturday, August 21, 2004 1:08 PM Subject: [AVR-Chat] PID Controller ... > Hi There ... > > I'm working in a project, so I need any kind of information about

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PID Controller ...

2004-08-21 by otojam11

Hi There ... I'm working in a project, so I need any kind of information about a PID controller for a DC Motor, I'm working with the AT90S2313 ... Thanks

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Re: [AVR-Chat] Re: How to monitor Atmega128 SRAM usage at runtime?

2004-08-21 by Bernd Felsche

On Saturday 21 August 2004 07:11, Dave VanHorn wrote: > At 06:06 PM 8/20/2004, Yang Wang wrote: > >I am using C. I am not using any dynamic memory allocation for the > >time being, so all the internal SRAM consumption should be for the > >stack. > The only way I know of, to check

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Re: [AVR-Chat] Re: How to monitor Atmega128 SRAM usage at runtime?

2004-08-20 by Dave VanHorn

At 06:06 PM 8/20/2004, Yang Wang wrote: >I am using C. I am not using any dynamic memory allocation for the >time being, so all the internal SRAM consumption should be for the >stack. The only way I know of, to check in that condition, is to clear the memory to zeroes at the star

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Re: [AVR-Chat] ATmega's ADC

2004-08-20 by Dave VanHorn

At 05:38 PM 8/20/2004, Jose wrote: >If I use the internal 2.56V reference, how the AREF pin should be >connected? Can connect a capacitor between AREF and GND? >Thanks in advance. You can, and should!

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Re: [AVR-Chat] How to monitor Atmega128 SRAM usage at runtime?

2004-08-20 by Dave VanHorn

At 05:16 PM 8/20/2004, Yang Wang wrote: >Hello there, > >Does anyone have some experience in monitoring the SRAM usage at >runtime? Since the Atmega128 has only 4k SRAM, I am always worrying >that at run time, storage of the program variables will eat up the >SRAM, but I don't kn

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Re: How to monitor Atmega128 SRAM usage at runtime?

2004-08-20 by Yang Wang

I am using C. I am not using any dynamic memory allocation for the time being, so all the internal SRAM consumption should be for the stack. By the way, what kind of buffers are you refering to? Thanks a lot! --- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > At 05:16 PM 8/20

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ATmega's ADC

2004-08-20 by Jose

If I use the internal 2.56V reference, how the AREF pin should be connected? Can connect a capacitor between AREF and GND? Thanks in advance. Jose

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How to monitor Atmega128 SRAM usage at runtime?

2004-08-20 by Yang Wang

Hello there, Does anyone have some experience in monitoring the SRAM usage at runtime? Since the Atmega128 has only 4k SRAM, I am always worrying that at run time, storage of the program variables will eat up the SRAM, but I don't know how to check at run time, how much of the 4k

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Problem with AVR USART multiprocessor mode

2004-08-20 by Ionut Craoioveanu

hi, i have a problem with the multiprocessro USART mode on an ATMEGA16 The AT16 is a slave and it is configured for 9bit frame format and interrupt driven. the problem is that when the MPCM bit is enabled it doesn't react at slave recognition frame. i'm sure that i'm sending the

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Re: STK200 (old): Accessing external SRAM

2004-08-19 by mikkohelin

It looks like that on the STK200 the A15 (of ext. RAM interface = port C bit 7) is connected to /CE on 62256 socket (pin 20) so either an inverter is needed between the A15 and /CE on RAM socket, or the /CE has to be hardwired to GND (which is easier but also a trace on the PCB h

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Message 1790

2004-08-18 by seher

SeHeR..... LIVE AND LET TO LIVE. Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage!

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STK200 (old): Accessing external SRAM

2004-08-18 by mikkohelin

How does the AVR (8515 etc.) access the external RAM, does it start from address zero or is the byte @ 0x260 the lowest that can be accessed on the chip physically (sounds logical as the internal RAM is used below 260h and the address range ends at max. FFFFh)? So only way to acc

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New code available

2004-08-17 by Dave VanHorn

http://www.nkksmartswitch.com/ http://www.dvanhorn.org/AvrSoftware/ They aren't cheap, but they sure are nice!

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LCD MODULE LCM 5044

2004-08-17 by oldhat_owen

Has anyone had any success with the avr and the 4X40 LCD module LCM 5044 which uses dual HD44780A00 chips. Thank you in advance. Owen.

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Re: [AVR-Chat] vsprintf in avr-gcc

2004-08-16 by John Samperi

At 08:46 PM 16/08/04 -0000, you wrote: >Anyone know if this function is available in avr-gcc? > There is a avr-gcc group on avrfreaks.com, there you may be able to get info directly from the horse's mouth. :-) Regards John Samperi *************************************************

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Re: vsprintf in avr-gcc

2004-08-16 by galenpatrickogrady

I thought I was using the latest version of avr-gcc - but I wasn't. Version 3.4.1 has support for vsprintf. Thanks. --- In AVR-Chat@yahoogroups.com, "galenpatrickogrady" wrote: > I am trying to port some code over from a Motorola HC08 project > compiled with Cosmic's C compiler t

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vsprintf in avr-gcc

2004-08-16 by galenpatrickogrady

I am trying to port some code over from a Motorola HC08 project compiled with Cosmic's C compiler to an AVR Mega. One of the functions that I use is vsprintf but it doesn't seem to be included in the WinAvr package (gcc v3.3.1 ?) although it is mentioned in the documentation. Any

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NEED HELP WITH USART MPCM MODE

2004-08-14 by Ionut Craoioveanu

hi, i have a problem with the multiprocessro USART mode on an ATMEGA16 The AT16 is a slave and it is configured for 9bit frame format and interrupt driven. the problem is that when the MPCM bit is enabled it doesn't react at slave recognition frame. i'm sure that i'm sending the

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Re: [AVR-Chat] Re: JTAG interface works even without MCU clock

2004-08-14 by Les Grant

On 13 Aug 2004 at 20:30, Graham Davies wrote: > I don't know how people work without an in-circuit debugger. Many > problems posted here and on other groups could be solved by the poster > if they had an OCD/ICE. When you can't afford to lose the pins that JTAG demands, you learn

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RE: [AVR-Chat] Re: Need Help with a circuit

2004-08-14 by Dave VanHorn

At 01:04 AM 8/14/2004, Les Grant wrote: >Hi Daniel, > >The photodiode probably won't be able to source/sink enough current >for your LED. Use a spare output on the micro to drive the LED (with >a series resistor, of course ;-) ). Drop the led in the base drive for the transistor

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RE: [AVR-Chat] Re: Need Help with a circuit

2004-08-14 by Les Grant

Hi Daniel, The photodiode probably won't be able to source/sink enough current for your LED. Use a spare output on the micro to drive the LED (with a series resistor, of course ;-) ). Regards, Les. On 12 Aug 2004 at 21:57, Daniel Boyer wrote: > > > > > Post your final! :) > > Oka

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-14 by Dave VanHorn

At 12:59 AM 8/14/2004, Les Grant wrote: >Hi Dave, > >On 12 Aug 2004 at 13:42, Dave VanHorn wrote: > >> At 01:36 PM 8/12/2004, Bruce Parham wrote: >> >> >> >WTF! Who said anything about running it at 50 mA? I was using 10 mA >> >as the example, that's 2x minimum for the LED and in

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-14 by Les Grant

Hi Dave, On 12 Aug 2004 at 13:42, Dave VanHorn wrote: > At 01:36 PM 8/12/2004, Bruce Parham wrote: > > > >WTF! Who said anything about running it at 50 mA? I was using 10 mA > >as the example, that's 2x minimum for the LED and in limit for the > >AVR... > > The guaranteed full on

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Re: [AVR-Chat] SSRs

2004-08-14 by Les Grant

This sounds like an IL300... ;-) Used to be made by Siemens but I think they sold it to Vishay... Les. On 12 Aug 2004 at 14:51, Dave VanHorn wrote: > > > > >> In the end, this SSR is a kick-ass optocoupler. > > > >At $5.00 each it better be ! > > They do tend to be pricey. > > I

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Re: [AVR-Chat] Crystal ID

2004-08-14 by Dave VanHorn

At 09:39 PM 8/13/2004, Daniel Boyer wrote: >I was going through and organizing my junk boxes and I found 5 crystals >labled 511G 441Z I did a quick google and came up with nothing... >Anyone have any clue what freq. these might be or an easy way to tell? >Thanks, >Daniel Drop the

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Re: [AVR-Chat] Re: JTAG interface works even without MCU clock

2004-08-14 by Mike Murphree

On Aug 13, 2004, at 3:30 PM, Graham Davies wrote: > > --- In AVR-Chat@yahoogroups.com, Brian Dean wrote: > >> But if you are using a Mac, Linux, >> or FreeBSD, AVR Studio is not >> ... an option ... Windows-only. > > True. I do not know what hosting platform the other person is u

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Crystal ID

2004-08-14 by Daniel Boyer

I was going through and organizing my junk boxes and I found 5 crystals labled 511G 441Z I did a quick google and came up with nothing... Anyone have any clue what freq. these might be or an easy way to tell? Thanks, Daniel

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Re: [AVR-Chat] Crystal ID

2004-08-14 by erikc

----- Original Message ----- From: "Daniel Boyer" To: Sent: Saturday, August 14, 2004 03:39 Subject: [AVR-Chat] Crystal ID > I was going through and organizing my junk boxes and I found 5 crystals > labled 511G 441Z I did a quick google and came up with nothing... > Anyone have a

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Re: [AVR-Chat] Re: JTAG interface works even without MCU clock

2004-08-13 by Brian Dean

Hi Graham, On Fri, Aug 13, 2004 at 08:30:55PM -0000, Graham Davies wrote: > > That's where AVaRICE comes in ... > > I personally use it ... > > That's good to know. I assume you have a genuine ($300) Atmel JTAG > ICE since you mention it on your Web site. Yep, I've had it since b

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-13 by MuRaT KaRaDeNiZ

I think you want to say "common emitter". + sometimes a snubber circuitry is also added, to solve EMI/EMC problems. MuratK --- Paul Maddox wrote: > Daniel, > > > oops, posted the wrong schematic... mine was still > wrong, but I did > > have the transistor... The one I ment to pos

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Re: JTAG interface works even without MCU clock

2004-08-13 by Graham Davies

--- In AVR-Chat@yahoogroups.com, Brian Dean wrote: > But if you are using a Mac, Linux, > or FreeBSD, AVR Studio is not > ... an option ... Windows-only. True. I do not know what hosting platform the other person is using. He has bought one of my little JTAG-ICE units, though, an

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Re: [AVR-Chat] Re: JTAG interface works even without MCU clock

2004-08-13 by Brian Dean

On Tue, Aug 10, 2004 at 06:46:38PM -0000, Graham Davies wrote: > Yes. I quote from the WinAVR readme file: "AVaRICE is a program for > interfacing the Atmel JTAG ICE to GDB and users can debug their AVR. > Use in conjunction with GDB." This probably works on Linux and Mac > platf

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RE: [AVR-Chat] Re: Need Help with a circuit

2004-08-13 by Daniel Boyer

> > Post your final! :) Okay, the final schematic is here: http://www.dpicts.com/Tiny15L-LaserDetector-Final.jpg You will notice a segment on the right that is in a pink box... I have not added this to the circuit yet (the circuit is working great without it), and I wanted to che

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Re: [AVR-Chat] OT - Modem DAAs (was Re: SSRs)

2004-08-12 by Dave VanHorn

At 05:15 PM 8/12/2004, Graham Davies wrote: >--- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > >> ... dual-optoisolator, and an opamp, >> to implement a modem hybrid without >> any transformer ... > >What happened to the DC wetting current of the line? Was that >carried over

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NEED HELP WITH USART MPCM MODE plsss

2004-08-12 by Ionut Craoioveanu

hi, i have a problem with the multiprocessro USART mode on an ATMEGA16 The AT16 is a slave and it is configured for 9bit frame format and interrupt driven. the problem is that when the MPCM bit is enabled it doesn't react at slave recognition frame. i'm sure that i'm sending the

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OT - Modem DAAs (was Re: SSRs)

2004-08-12 by Graham Davies

--- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > ... dual-optoisolator, and an opamp, > to implement a modem hybrid without > any transformer ... What happened to the DC wetting current of the line? Was that carried over the isolation barrier to? Was the op-amp circuit line

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SSRs

2004-08-12 by Dave VanHorn

> >> In the end, this SSR is a kick-ass optocoupler. > >At $5.00 each it better be ! They do tend to be pricey. I did a fun circuit once, with a dual-optoisolator, and an opamp, to implement a modem hybrid without any transformer, and full isolation to the phone line. Within limi

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Re: [AVR-Chat] Re: Need Help with a circuit SSR

2004-08-12 by Dave VanHorn

> >One thing I didn't seem mentioned is that most Solid State Relays, >(SSR) are most often strictly and only AC output. True. Triac outputs that won't turn off on a DC load, without special measures. > Also the inputs are very specific. if it is logic level then only the 5V DC i

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NEED HELP WITH THE MPCM USART MODE

2004-08-12 by Ionut Craoioveanu

hi, i have a problem with the multiprocessro USART mode on an ATMEGA16 The AT16 is a slave and it is configured for 9bit frame format and interrupt driven. the problem is that when the MPCM bit is enabled it doesn't react at slave recognition frame. i'm sure that i'm sending the

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-12 by Dave VanHorn

At 01:36 PM 8/12/2004, Bruce Parham wrote: >WTF! Who said anything about running it at 50 mA? I was using 10 mA as the example, that's 2x minimum for >the LED and in limit for the AVR... The guaranteed full on current is 50mA Opto couplers typically have about a 10-1 spread in cu

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RE: [AVR-Chat] Re: Need Help with a circuit

2004-08-12 by Mike Murphree

joseph torelli said: > I don't know if this will fit but google "uln28003a". This is a relay > driver chip. I has protection diodes built in. It can drive 8 relays or > you can parallel the output for higher current relays. You can control > it right from the output pins of the m

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-12 by Bruce Parham

WTF! Who said anything about running it at 50 mA? I was using 10 mA as the example, that's 2x minimum for the LED and in limit for the AVR... Bruce Dave VanHorn wrote: > > > > >Looking at Pg 1 of the data sheet, we have just the LED for input. On Pg 2, > >under Electrical Charact

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Re: [AVR-Chat] Re: Need Help with a circuit

2004-08-12 by Dave VanHorn

> >Looking at Pg 1 of the data sheet, we have just the LED for input. On Pg 2, >under Electrical Characteristics, we need 5 to 50 mA for input control. The >AVR will source 10 mA at an output voltage of 4.3 V when operated @ 5V. The >LED will drop 1.2 V @ 5 mA. Let's assume 1.3 V

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