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2004-05-07 by Alex Shepherd
> I've tried code written in WinAVR, and even tried > BASCOM, which is my emergency backup language just to see the > hardware is sound. Nothing. I've always used BASCOM to build little hardware test routines to check new hardware and it is usually the easiest way to go although
2004-05-07 by David VanHorn
At 08:38 PM 5/6/2004 -0400, John Johnson wrote: >I've been working on an LCD project for two (3?) days now, and still >have nothing to show for it. I'm trying to use 4 bit mode. I was >originally driving a PCF8754AN using I2C, which was in turn connected >to the LCD. I gave up on
2004-05-07 by John Johnson
I've been working on an LCD project for two (3?) days now, and still have nothing to show for it. I'm trying to use 4 bit mode. I was originally driving a PCF8754AN using I2C, which was in turn connected to the LCD. I gave up on that this morning and switched over to driving it d
2004-05-06 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Phil" wrote: > with a photo transistor, you simply > pull it low and take the output > from the emitter. I would think you'd need a comparator so that the input to the MCU was a proper logic level and not some analog signal that could spend a lot
2004-05-06 by Phil
with a photo transistor, you simply pull it low and take the output from the emitter. Connection wise, +5 connected to collector. emitter connected to pull-down resistor which is in turn connected to ground. output is take from the emitter. When the PT turns on (i.e. light), it w
2004-05-06 by jay marante
hi! i wanna trigger a low-level interrupt on interrupt 1 using a phototransistor. what i wanted is that when there is an insufficinet light on the phototransistor or when the light is blocked, interrupt 1 will trigger on low-level. how will i design this? thanks for the help... -
2004-05-05 by Zheng Anding
Actually I did some research and found out this doc could be helpful for me. http://www.atmel.com/dyn/resources/prod_documents/doc2546.pdf Kathy Quinlan wrote: Zheng Anding wrote: > But EEPROM is only 4K even for Mega128. I need larger space to store my > data. The flash rom come
2004-05-05 by Kathy Quinlan
Zheng Anding wrote: > But EEPROM is only 4K even for Mega128. I need larger space to store my > data. The flash rom comes with Mega128 is 128K and far more than enough > for my program. That's why I'm looking for a way to store these data > into flash rom. > > */David VanHorn /*
2004-05-05 by David VanHorn
At 05:32 PM 5/4/2004 -0700, Zheng Anding wrote: >But EEPROM is only 4K even for Mega128. I need larger space to store my data. The flash rom comes with Mega128 is 128K and far more than enough for my program. That's why I'm looking for a way to store these data into flash rom. Ok
2004-05-05 by Zheng Anding
But EEPROM is only 4K even for Mega128. I need larger space to store my data. The flash rom comes with Mega128 is 128K and far more than enough for my program. That's why I'm looking for a way to store these data into flash rom. David VanHorn wrote:At 10:44 AM 5/4/2004 -0700, Zhe
2004-05-05 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, jay marante wrote: > Is driving a stepper thru PWM then to a shift register > alright? -jay As another poster mentioned, you can get a controller chip that does most or all of the work for you. Alternatively, you can use a latch to provide the pha
2004-05-04 by Ridanovic Srdjan
Hello everybody, I am loking for graphic LCD display 240x128 dots. Does anybody knows online electronics shop where I can find it. I want to bay only one, and that is a big problem for moust of suppliers. I am in Europe, and there fore I prefered Europan supplier. Thank You.
2004-05-04 by David VanHorn
At 10:44 AM 5/4/2004 -0700, Zheng Anding wrote: >Hi, > >Anybody has experience with AVR Read/Write Flash ROM during runtime? I want to store some data on some kind of media without power supply during runtime and load them when power's up. I'm not sure exactly what you're looking
2004-05-04 by Phil
I'm not sure what you mean by that but i didn't see anything about controlling current and phase. There are stepper controller chips that do all this and handle the power required. You might go check out these tutorials on steppers http://209.41.165.153/stepper/ and then look up
2004-05-04 by Zheng Anding
Hi, Anybody has experience with AVR Read/Write Flash ROM during runtime? I want to store some data on some kind of media without power supply during runtime and load them when power's up. Thanks and appreciate any info and help. Regards, Alex Do you Yahoo!? Win a $20,000 Career M
2004-05-04 by jay marante
Is driving a stepper thru PWM then to a shift register alright? -jay __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover
2004-05-04 by Vijay Raju
Hi Ashwin, My company is working on building an embedded Ethernet board. You can get preliminary information here http://www.unesols.com/products_pages/WEBY/weby.htm I have no problems getting all AVRs starting with 1200 all the way up to the Mega128 locally here in Pune (where I
2004-05-03 by Ashwin Kumar
Hi, Does anybody know where I can get a Atmega in India (Atmega16) and the approximate cost? yours, Ashwin
2004-05-03 by Ashwin Kumar
Hi, Has anybody worked on building a embedded web server on an 8051 platform? I know there are a couple of projects on the net but all use some high end variant which is not available here (india). Does somebody have a usable schematic? I am not familiar with interfacing ethernet
2004-05-01 by radeohedca
Sorry about the dudes guys...
2004-05-01 by radeohedca
Has anyone hereon the list successfully done any Voice over I/P applications using an ATmega with a hardware CODEC and NIC chips ? I'd like to build a VoIP intercom.
2004-05-01 by radeohedca
Has anyone hereon the list successfully done any Voice over I/P applications using an ATmega with a hardware CODEC and NIC chips ? I'd like to build a VoIP intercom.
2004-05-01 by radeohedca
Has anyone hereon the list successfully done any Voice over I/P applications using an ATmega with a hardware CODEC and NIC chips ? I'd like to build a VoIP intercom.
2004-05-01 by radeohedca
Has anyone hereon the list successfully done any Voice over I/P applications using an ATmega with a hardware CODEC and NIC chips ? I'd like to build a VoIP intercom.
2004-05-01 by radeohedca
Has anyone hereon the list successfully done any Voice over I/P applications using an ATmega with a hardware CODEC and NIC chips ? I'd like to build a VoIP intercom.
2004-04-30 by Stefan Wimmer
Hi folks, a little bit OT, but since I found mention of the ANT-16 USB logic analyzer "dongle" recently I dare to ask: Does anybody know if there is a similar device with more memory? 2048 samples is not really too much of a trace buffer if it comes to higher frequencies... Stefa
2004-04-28 by David VanHorn
At 10:10 AM 4/28/2004 -0600, Craig Limber wrote: >Hi there; > >I am looking for a little advice on debugging my latest AVR project. I >have an ATmega32 (40 pin DIP, high voltage version) on a custom >single-sided printed circuit board. I bought a 16 meg/20pf load >crystal (CTS Fr
2004-04-28 by James Wagner
Craig - It almost sounds like you have too much capacitance on one (or more) of the crystal lines. The oscillator's input terminal is the most sensitive. Do you have anything else connected (that is, are you also using the clock signal elsewhere)? Are you, perhaps, using one of t
2004-04-28 by Craig Limber
Hi there; I am looking for a little advice on debugging my latest AVR project. I have an ATmega32 (40 pin DIP, high voltage version) on a custom single-sided printed circuit board. I bought a 16 meg/20pf load crystal (CTS Frequency Controls model ats16a) and wired in 18pf caps (d
2004-04-28 by jamie pollock
I am using the attiny15l, which has no ram :( The test I did today resulted as follows: The only reset occuring is the watchdog. If i place a statments like: *********************************************** in cpu_reset,mcusr ; retrieve reset flags clr temp out mcusr,temp ;clear r
2004-04-27 by jay marante
can i have a C code? i tried to have: MCUCR = 0x70 but it didn' work. Mark Jordan wrote: Try this: ldi r16, $70 out MCUCR, r16 sleep On 27 Apr 2004 at 8:38, jay marante wrote: > > how do i put the mega16 in power-save mode? > thanks... > -jay > > Do you Yahoo!? > Win a $20,000 Ca
2004-04-27 by Mark Jordan
Try this: ldi r16, $70 out MCUCR, r16 sleep On 27 Apr 2004 at 8:38, jay marante wrote: > > how do i put the mega16 in power-save mode? > thanks... > -jay > > Do you Yahoo!? > Win a $20,000 Career Makeover at Yahoo! HotJobs > > Yahoo! Groups Links > * To visit your group on the we
2004-04-27 by James Wagner
Not sure if this original query was answered but here is a stab at it. For micro-stepped stepper motors, the windings are usually driven directly with a PWM switch (ofen, using an H-bridge). The PWM is not open-loop as would be the case with PWM from most micros. Instead, it is f
2004-04-27 by Kathy Quinlan
> -----Original Message----- > From: Cobb, Quentin [mailto:quentin_cobb@tescocorp.com] > Sent: Tuesday, 27 April 2004 11:34 PM > To: 'AVR-Chat@yahoogroups.com' > Subject: RE: [AVR-Chat] OT Cisco router problems > > > You may be able to recover it, but it does depend on what > mea
2004-04-27 by jay marante
how do i put the mega16 in power-save mode? thanks... -jay Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs
2004-04-27 by Cobb, Quentin
You may be able to recover it, but it does depend on what measures were put in place. If a router is configured with "no service password−recovery", this disables all access to the ROMMON. To fix the router, you must get a new Cisco IOS software image on a Flash single in−line me
2004-04-27 by Phillip Vogel
Check out http://tinyurl.com/2yawo. There are detailed steps to recover from a lost password for pretty much any cisco. Phillip > -----Original Message----- > From: Kathy Quinlan [mailto:kat-yahoo@kaqelectronics.dyndns.org] > Sent: Tuesday, April 27, 2004 10:32 AM > To: AVR CHAT
2004-04-27 by jay marante
is it possible for me to make an LCD.h library? how can i make one if ever...? thanks. -jay Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs
2004-04-27 by Kathy Quinlan
Hi all, This is way OT, but I am pulling my hair out here. I have a Cisco 2503 ISDN Router in for service, but I can not test it fully as no one knows the password for the EXEC mode :o( Does anyone know how to blat the config so I can start from scratch ? I have searched Cisco bu
2004-04-27 by Kathy Quinlan
As List owner I do not mind this OT thread. Please in future remember to trim the post :o) Regards, Kat. -----Original Message----- From: Mark Weston [mailto:weston54@yahoo.com] Sent: Tuesday, 27 April 2004 10:06 PM To: AVR-Chat@yahoogroups.com Subject: Re: [AVR-Chat] Digest Numb
2004-04-27 by Mark Weston
I have a Z8Encore dev system as well and value the comments very much, but this is the AVR group. Can we move those comments to the Z8 Yahoo group? Mark AVR-Chat@yahoogroups.com wrote: There are 9 messages in this issue. Topics in this digest: 1. Re: STK500, STK501 & AVR Studio n
2004-04-27 by David VanHorn
At 05:48 AM 4/27/2004 -0700, jamie pollock wrote: >I am in assembly only, This is why i can't understand what to do to preserve the registers. I have tried storing the data in 0cr1a and r30,r29 ect. but it still wipes it out.I still need to check the mcusr to see if the watchdog
2004-04-27 by jamie pollock
I am in assembly only, This is why i can't understand what to do to preserve the registers. I have tried storing the data in 0cr1a and r30,r29 ect. but it still wipes it out.I still need to check the mcusr to see if the watchdog is the only reset which is occuring. If i use eepro
2004-04-27 by Mike
Which AVR chip are you using for your stepper driver? Mike B. In AVR-Chat@yahoogroups.com, "dv7839" wrote: > I hope this isn't too far off topic. I was doing some research for an > AVR powered stepper motor driver design when I came across a reference > to a current sensing resis
2004-04-27 by Brian Dean
On Mon, Apr 26, 2004 at 08:23:55PM -0700, Larry Barello wrote: > Yep. This is the most effective way to do a hard reset... The > registers and SRAM shouldn't be affected, but if you are using C the > startup runtime will clear everything out for you. The hardware > registers (e.g
2004-04-27 by Larry Barello
Yep. This is the most effective way to do a hard reset... The registers and SRAM shouldn't be affected, but if you are using C the startup runtime will clear everything out for you. The hardware registers (e.g. I/O & peripherals) will be wiped out. You might get away with a bit o
2004-04-26 by Al Welch
I also worked on Z-80's in the old days. Used CP/M, Digital Research compilers, then MS-DOS Assembler, etc. Burned EPROMS for firmware with hand built hardware. For my money Atmel and CodeVision make a good combo. It is such a pleasure to fire up a new prototype board and have th
2004-04-26 by Jesper Hansen
I seem to recall that in the "early days" (late 70's), nobody used Zilog tools. It was all third-party assemblers, and compilers. There must have been a reason for that. Probably the same as today. Very apropos Atmel - chip-makers should stick to making chips ! /Jesper ----- Orig
2004-04-26 by jamie pollock
I am using the watchdog to come out of sleep mode. The watchdog seems to work fine ( i can turn it off sucessfully and re-enable it). My trouble is that when the watchdog resets it doesnot resume after the sleep. The controller begins at the reset vector and clears my registers.
2004-04-26 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Paul Curtis" wrote: > I have an Ecore! development system > and the Zilog compiler *has* > improved since the early days. > But it's still not as good as > it could be. True, but it's not as good as it needs to be either for serious work. I have