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2004-02-25 by fnatmed
--- In AVR-Chat@yahoogroups.com, "Phil" wrote: > has anyone gotten the samples and programmer from this? Or even heard > anything back? I signed up but haven't heard or gotten anything. > > --- In AVR-Chat@yahoogroups.com, Alex Gibson wrote: > > Circuit Cellar is running a design
2004-02-25 by Phil
has anyone gotten the samples and programmer from this? Or even heard anything back? I signed up but haven't heard or gotten anything. Phil --- In AVR-Chat@yahoogroups.com, Alex Gibson wrote: > Circuit Cellar is running a design contest for Atmel > avr chips. http://www.circuitce
2004-02-23 by Wagner Lipnharski
markevans_1 wrote: > Got my Circuit Cellar AVR competition kit today! > > The In Circuit Programmer seems to be a lot nicer than my homemade > passive parrallel port programmer. Inside the fancy case of the > programmer provided reveals two SMD AVRs and not much else on the > PCB
2004-02-23 by markevans_1
Got my Circuit Cellar AVR competition kit today! The In Circuit Programmer seems to be a lot nicer than my homemade passive parrallel port programmer. Inside the fancy case of the programmer provided reveals two SMD AVRs and not much else on the PCB!! Will start fiddling with the
2004-02-21 by Ivan Vernot
Hello All, Does anyone have any experience with running an AVR (ATmega128) as an SPI slave? I am using the onchip SPI port and have set the \SS (PB0) pin an input expecting to get an interrupt (SPIF set) when the SS pin gets asserted. This did not work. Now I am polling the SS pi
2004-02-20 by Cobb, Quentin
Well in codevisionC it's really easy... // Input Port E, Pin 1 #define TESTPIN1 PINE.1 // Output Port E Pin 2 #define TESTPIN2 PORTE.2 DDRE = 0b111110; // All pins outputs except 1 PORTE= 0b000001; // Enable ouptuts, pullup input pin 1 while (!stop) { TESTPIN2 = TESTPIN1; //light
2004-02-20 by inpactmicro
Thanks for the advice ill give it a shot im using The ICC compiler (coming from a PIC background) things seemed to be much more straightforward with PIN (bit) manipulation setting Tris registers and reading pins was a simple operation e.g TRISE1 = 1; // output if (RE1) RE2 = 1; /
2004-02-19 by JoeT
>As I remember MOV's do wear, you might want to >consider this. What is voltage rating for them? I used v150la20, 150v (22mm) MOV's. I am still researching the correct values. I may put them on the contactors instead of the PCB next time. >>I also left in the Int0 interrupt disab
2004-02-19 by Larry Barello
You have several errors in your code. 1. Your "if" statement is bogus. Expand it out: if ((PINE, 0x01) == 0) Doesn't mean anything, although syntactically it is ok. 2. After reset all pins are INPUTS. You need to set the direction to OUTPUT to properly drive the LED. 3. Which com
2004-02-19 by Paul Maddox
Hi, > but nothing happens after the led comes on the first time > regardless of the polarity put on the TESTPIN2 I might be wrong but I think you'll find you can't set BITs on PORTE. I think you can only write a BYTE... Paul
2004-02-19 by inpactmicro
basic stuff I know but Im banging my head against a wall Im trying to READ a pin (see if Its set high or low by a switch and turning on another testpin - LED on the basis of that the (supposedly) input pin is on PinE1 (on testpin2) the output pin iis on PINEo (Testpin 1) this is
2004-02-17 by Theo Maryonovich
Thanks Volkmar, Switching off the Mega103 emulation mode solved my problem of not returning from function calls on the Mega128. Ted ----- Original Message ----- From: To: Sent: Thursday, February 12, 2004 2:33 AM Subject: [AVR-Chat] Digest Number 614 There are 10 messages in this
2004-02-16 by MuRaT KaRaDeNiZ
As I remember MOV's do wear, you might want to consider this. What is voltage rating for them? >I also left in the Int0 interrupt disable before > switching the > relays on. this doesn't seem to me a proper solution, you should better have fixed the problem with other cautions, s
2004-02-16 by Joe
Thanx to everybody that contributed to the Thread. I got good ideas and the problem is solved. I think the main fixes were: 1) MOV's across the relay contacts 2) 6.2v zeiner across VCC to ground 3) .01uf caps at the LCD+, AVR power pins I also changed: 1) Removed the cap across t
2004-02-14 by Mike Murphree
On Feb 13, 2004, at 4:34 PM, Al Welch wrote: > I use Liner Techs SwitcherCad (free to download and use) to simulate > the > power supply. It seems to work great for this. It does make a great > deal of > difference when you select a low ESR cap instead of a cheapo when it > comes
2004-02-13 by Al Welch
I use Liner Techs SwitcherCad (free to download and use) to simulate the power supply. It seems to work great for this. It does make a great deal of difference when you select a low ESR cap instead of a cheapo when it comes to noise filtering. I just got done with a +/-5, +3.3v s
2004-02-13 by Mike Murphree
I ordered one from Sweden, sounds like we may actually get some locally too: -------- Original Message -------- Per the manufacture the ATAVRBFLY-ND is acknowledged to shipo 2/15/2004 from California via UPS ground. Transit time is 5-6 days. Please let me know if you have any que
2004-02-13 by Mike Murphree
Al Welch said: > Digikey shows them for under $7 in the USA. I note there is a -5 for > fixed 5 volt output and a no dash for adjustable output. > I think you can buy direct from Linear Technology using a credit card as > well. I would advise anyone using Linear Technology's regu
2004-02-13 by Al Welch
Digikey shows them for under $7 in the USA. I note there is a -5 for fixed 5 volt output and a no dash for adjustable output. I think you can buy direct from Linear Technology using a credit card as well. Al -----Original Message----- From: Claxton, Dean J [mailto:dean.j.claxton@
2004-02-13 by Claxton, Dean J
Thanks Al, I believe that would be what it is. Would you have any idea where I can get one cheaply? Seems Farnell sell them, but AU$22.83 + GST each. Regards Dean Claxton -----Original Message----- From: Al Welch [mailto:alwelch@axxiomchromatography.com] Sent: Friday, 13 February
2004-02-13 by VA3TO
Hi Mike. Thanks for the TI/Mot offer... I'm pretty fluent in Motorola HC08/11/12, Intel MCS-51 and derivatives as well as Microchip PIC. �I wanted to expand my experience to include Atmel AVR. I'm sure something will turn up. 73 de Hugh VA3TO Mike Murphree wrote: VA3TO said: > Ye
2004-02-12 by Mike Murphree
VA3TO said: > Yes, I tried to get a Butterfly through Digikey Canada > and they are indeed backordered. This is why I am > soliciting for a 'used' one...quite often people order this > sort of thing with good intentions but never end up getting > around to playing with it. I also
2004-02-12 by Mike Murphree
Jesper Hansen said: > That someone overseas was me, and I still have plenty of Butterflies > available ;-) > > /Jesper > www.yampp.com Ok, thanks... the controller we were trying to replace totally died last weekend, so I need to do something fast. Mike
2004-02-12 by VA3TO
Yes, I tried to get a Butterfly through Digikey Canada and they are indeed backordered. This is why I am soliciting for a 'used' one...quite often people order this sort of thing with good intentions but never end up getting around to playing with it. I also alluded to being open
2004-02-12 by Jesper Hansen
That someone overseas was me, and I still have plenty of Butterflies available ;-) /Jesper www.yampp.com ----- Original Message ----- From: "Mike Murphree" To: Sent: Thursday, February 12, 2004 8:09 PM Subject: Re: [AVR-Chat] Wanted: unused Dev boards, Butterfly etc.. > radeohedc
2004-02-12 by Mike Murphree
radeohedca said: > Looking for 2nd hand AVR Dev board like the Atmel Butterfly, or > anything from EDTP, Futurlec, or ??? Good luck, I ordered some AVR butteflies from DigiKey back in November and they still haven't been shipped. There was someone overseas associated with a MP3 p
2004-02-12 by Al Welch
The pcb web site has tips at this link. Most relate to board layout but it is good info. http://www.olimex.com/pcb/ Al Welch -----Original Message----- From: Ricardo Callejo [mailto:surbyte@satlink.com] Sent: Wednesday, February 11, 2004 7:26 PM To: AVR-Chat@yahoogroups.com Subje
2004-02-12 by radeohedca
Looking for 2nd hand AVR Dev board like the Atmel Butterfly, or anything from EDTP, Futurlec, or ??? Please contact me by e-mail. Thanks.
2004-02-12 by Dave VanHorn
At 12:26 AM 2/12/2004 -0300, Ricardo Callejo wrote: >Can you suggest where can i find some examples of good and wrong pcbs? Not offhand. PCB design is somewhat of an art. I'm not at home, so I can't refer you to any books directly, but the general idea is that the micro should no
2004-02-12 by Al Welch
The relay should have a reverse diode across the coil to clamp the back voltage generated when it is turned off. Some relays offer the diode built into the part. Also a capacitor should be next to the + supply to the relay coil. A .1 ufd and maybe a 1 UFD tantalum. Al Welch -----
2004-02-12 by Al Welch
Linear TEchnology makes a LT1375, 8-pin step down voltage regulator. Al Welch -----Original Message----- From: Claxton, Dean J [mailto:dean.j.claxton@team.telstra.com] Sent: Wednesday, February 11, 2004 9:15 PM To: AVR-Chat@yahoogroups.com Subject: [AVR-Chat] Off topic - general
2004-02-12 by Dave VanHorn
At 07:16 AM 2/12/2004 -0800, Larry Barello wrote: >You are describing a classic race condition. I think Brian Dean is right on >the money where the problem is. Race conditions are very hard to smoke out. >You need a reliable trigger - or, if that isn't possible, then a repeatable
2004-02-12 by Larry Barello
You are describing a classic race condition. I think Brian Dean is right on the money where the problem is. Race conditions are very hard to smoke out. You need a reliable trigger - or, if that isn't possible, then a repeatable test case (which is the same thing). Since you have
2004-02-12 by Dave VanHorn
> >Please do let us know what the culprit turns out to be if / when you nail it! Will do. At this point, we've narrowed it down a little but still no definitive answer.
2004-02-12 by inpactmicro
when I plug in the emulator I get some errors when it tries to access the atmega128 error reading memory IO Address:0 Size:64 error reading memory REGISTERS:0 Size:32 error reading memory SRAM:Address:96 Size:160 im not setting the 103 compatibility mode in the programmer fuse do
2004-02-12 by inpactmicro
possibly voltage comparator????? Partname: TLC3702IDR Description: DUAL, MICROPOWER, PUSH-PULL OUTPUTS, LINCMOS(TM) VOLTAGE COMPARATOR --- In AVR-Chat@yahoogroups.com, "Claxton, Dean J" wrote: > Surface mount 8 pin device on the back of a video card - marked "1375 > pncn" - any i
2004-02-12 by inpactmicro
I am running now on 4 MHZ and its still happening im 99.9% sure the fuses were set to turn off 103 compatibility ill go and do it again to be 100% sure (should I be setting the DDRE for port D in a specific way to deal with this compatibility issue? thanks for all the advice Bren
2004-02-12 by Claxton, Dean J
Surface mount 8 pin device on the back of a video card - marked "1375 pncn" - any ideas what it is?? Could it be some type of voltage regulator?
2004-02-12 by fnatmed
--- In AVR-Chat@yahoogroups.com, Brian Dean wrote: > > Please do let us know what the culprit turns out to be if / when you > nail it! No ifs here. Definitely WHEN. Ready - steady - shoot ! Dean.
2004-02-12 by Ricardo Callejo
Can you suggest where can i find some examples of good and wrong pcbs? Thanks. -----Mensaje original----- De: Dave VanHorn [mailto:dvanhorn@cedar.net] Enviado el: Miércoles, 11 de Febrero de 2004 07:39 p.m. Para: AVR-Chat@yahoogroups.com Asunto: RE: [AVR-Chat] Relay Control At 02
2004-02-11 by Brian Dean
On Wed, Feb 11, 2004 at 02:30:08PM -0800, MuRaT KaRaDeNiZ wrote: > are ATMEL AVR micros more vulnerable to EMI than other > micros? what do you think? Or can the EMI problems be > addressed to circuit design & environment directly? A > elektronik circuit design firm in my country
2004-02-11 by Brian Dean
Hi Dave, On Tue, Feb 10, 2004 at 09:36:14AM -0500, Dave VanHorn wrote: > >Is there anywhere in the code where a multibyte pointer variable is > >updated or used in both interrupt routines as well as non-interrupt > >routines? > > Just double-checked, X is reserved for INT0, so no
2004-02-11 by Dave VanHorn
At 02:30 PM 2/11/2004 -0800, you wrote: >are ATMEL AVR micros more vulnerable to EMI than other >micros? what do you think? Or can the EMI problems be >addressed to circuit design & environment directly? I see no reason why AVRs would be more or less susceptible than other simila
2004-02-11 by MuRaT KaRaDeNiZ
are ATMEL AVR micros more vulnerable to EMI than other micros? what do you think? Or can the EMI problems be addressed to circuit design & environment directly? A elektronik circuit design firm in my country was using atmel micros beside nec,mitsubishi,pic and the manager had som
2004-02-11 by volkmar.dierkes@web.de
Are you using both the Mega128? Did you switch off the Mega103 emulation mode in the fuses? If not, the compiler will locate the stack in an area where the Mega103 has no RAM! HTH Volkmar inpactmicro schrieb am 11.02.2004, 14:20:54: > exactly whats happening to me! > i tried usin
2004-02-11 by Dave VanHorn
> >What compiler are you using ? >Is the application a mix of 'C' and assembler ? 0%C, 100% assembler.
2004-02-11 by inpactmicro
exactly whats happening to me! i tried using codevision AND iCC as my C compiler but the same thing is happening im using ICE JTAG to program it simulates fine but emulates/runs bizarrly if You find out whats wrong, let me know!! some suggestions Ive been give are is the watchdog
2004-02-11 by Theo Maryonovich
Hello to all, I am a bit new to the AVR world. I recently purchased a STK-500 and 501 development kit with a mega128 and am using WinAVR for my C++ compiler. Having some trouble returning from function calls (like not returning at all). I am assuming I need to link to the program
2004-02-11 by Kathy Quinlan
> -----Original Message----- > From: JoeT [mailto:joet@attg.net] > Sent: Wednesday, 11 February 2004 1:14 AM > To: AVR-Chat@yahoogroups.com > Subject: RE: [AVR-Chat] Relay Control > > > I was going to go for the PCB shielding next. It does not > have a ground plane. I used a 10k
2004-02-10 by jtvolpe
--- In AVR-Chat@yahoogroups.com, Dave VanHorn wrote: > > > > >Is there anywhere in the code where a multibyte pointer variable is > >updated or used in both interrupt routines as well as non-interrupt > >routines? > > Just double-checked, X is reserved for INT0, so no problem the