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2003-11-25 by Allan Lane
I have an Ant8 myself, and am very happy with it. 500 MHz means your max sample rate is 2 nS. This means your logic analyzer can tell you when things really happen, +- 2 nS. At 40 MHz, you get +- 25nS -- still pretty good. Sometimes, you want to insure you catch some very transie
2003-11-24 by fnatmed
--- In AVR-Chat@yahoogroups.com, Alex Gibson wrote: > techy fellow wrote: > > >Hi Guys, > > > >Can someone pls let me know whether the aforementioned is a good equipment to > >invest ? Or I should go for a typical 2 channels Oscilloscopes ? > The one I use most of the time a HP 5
2003-11-24 by John Samperi
At 10:30 PM 23/11/03 -0000, you wrote: >One thing I figured out about the PLCC sockets >is that they're a whole heck of a lot easier >to install if you cut out the little plastic >center part...then you have a fairly clear >shot to the contacts in the center. ?? The idea of PLCC
2003-11-24 by poitsplace
oh...my mistake. I just made etched that little board myself --- In AVR-Chat@yahoogroups.com, John Samperi wrote: > At 10:30 PM 23/11/03 -0000, you wrote: > >One thing I figured out about the PLCC sockets > >is that they're a whole heck of a lot easier > >to install if you cut ou
2003-11-23 by John Samperi
At 10:42 PM 23/11/03 +1100, you wrote: >It is cheaper for them to release a beta than it is to do extensive >debugging. Added benefit of finding more bugs than the developer would. >A lot of companies seem to do this, rather than do extensive QandA testing. Hmmmm...Microsoft come
2003-11-23 by poitsplace
--- In AVR-Chat@yahoogroups.com, John Samperi wrote: >>How are you going with the plcc issue >>(or lack of them) ? >NOT going! A lot of my work lately has >been with the Mega8 28 pin through hole. >I guess I'll have to bite the bullett >one of this day with surface mount...IF >I
2003-11-23 by David VanHorn
> >Remember at the seminar in June, the atmel guy siad they had a new version of avr studio ready to go back then and it was only the legal department holding them back as they hadn't approved the release. I find that rather hard to believe.
2003-11-23 by techy fellow
Hi Alex, Thanks alot for the info. As I am into MCUs, I need an equipment to help me to test my projects. I will be getting an AVR ICD or ICD2 for PIC. But when comes to testing of circuits, I think I need something more than just ICD. I thought of using a logic analyzer since it
2003-11-23 by Alex Gibson
John Samperi wrote: >At 09:41 AM 22/11/03 +0800, you wrote: > > >>I also asked them in the email when AVRStudio 4.8 will be out and how >>many bugs they expect to release it with ;o) (my guess is twice as many >>as 4.7 ;o) >> >> > >I have started a bug thread on AVRFREAKS.COM, so
2003-11-23 by Alex Gibson
techy fellow wrote: >Hi Guys, > >Can someone pls let me know whether the aforementioned is a good equipment to >invest ? Or I should go for a typical 2 channels Oscilloscopes ? > >Thanks in advance for your help. >Davis > > > What do you need ? What frquency range ? What bandwidt
2003-11-22 by techy fellow
Hi Guys, Can someone pls let me know whether the aforementioned is a good equipment to invest ? Or I should go for a typical 2 channels Oscilloscopes ? Thanks in advance for your help. Davis Do you Yahoo!? Free Pop-Up Blocker - Get it now
2003-11-22 by Steven Chang-Lin Yu
I just graduated from my Bach of Electrical and Computing degree at QUT in Brisbane, Australia. And looking for job in the embedded system (prefer AVR ☺, no evil PIC) area, is there any member from Australia, and can help me pointing out some direction for job hunting??? There is
2003-11-22 by David VanHorn
At 05:52 PM 11/22/2003 +1100, John Samperi wrote: >At 09:41 AM 22/11/03 +0800, you wrote: >> >>I also asked them in the email when AVRStudio 4.8 will be out and how >>many bugs they expect to release it with ;o) (my guess is twice as many >>as 4.7 ;o) > >I have started a bug thre
2003-11-22 by John Samperi
At 09:41 AM 22/11/03 +0800, you wrote: > >I also asked them in the email when AVRStudio 4.8 will be out and how >many bugs they expect to release it with ;o) (my guess is twice as many >as 4.7 ;o) I have started a bug thread on AVRFREAKS.COM, someone chewed me off for saying that
2003-11-22 by Kathy Quinlan
Ok I have just spent au$281 on an AT43DK355 which is the USB development kit for the AVR (it supports the AVR parts with USB built-in) Problems so far: #1 No reference design unless you buy the Dev Kit (I had to spend as I need the chip in a design) #2 The Shipped dev board has m
2003-11-21 by Ken Holt
I am using the Omnivision OV7640AA for Black&White VGA res images, and am quite happy. Mostly with slow frame-rates, but the USB 2.0 Cypress connection can handle full speed. Not much direct use of AVR, though. I do use a Tiny 26 to control the laser diode lighting. Ken At 06:39
2003-11-21 by Mike Murphree
On Thu, Nov 20, 2003 at 11:42:55PM -0500, David VanHorn wrote: > At 03:47 AM 11/21/2003 +0000, nangkon wrote: > > >Thanks for the info! > > > >Is there an instrument (maybe Oscilloscope) to measure > >if the cap/crystal combination is ok? And what should > >I measure (frequency)?
2003-11-21 by k5hj
--- In AVR-Chat@yahoogroups.com, "Theo Maryonovich" wrote: > Hello users, > > I am new to this group and AVR's in general. My experience is mainly with PIC 16,17,and 18 series controllers. Does anybody have a suggestion on a AVR controller to start with and a C compiler. I would
2003-11-21 by Al Welchaxxiom
CMOS sensors are cheaper and easier to work with. Omnivision is one brand. National Semi as well. There are cheap kits and evals for the Omnivision brand out there. They usually have two busses to deal with... Serial for access to registers in the camera and parallel for data. Ot
2003-11-21 by Mike Harrison
Also look at the CMOS sensors from SGS-Thomson (Formerly VVL) Many of their snesors come in mono and colour versions, the only difference being the presence of a colour-stripe filter on the die On Fri, 21 Nov 2003 05:47:15 -0800, you wrote: > > >Sorry, you are right, I meant the
2003-11-21 by Close, Jeffrey
Sorry, you are right, I meant the latter - does that change your answer? At 08:42 AM 11/21/2003 +0000, Clark, Andy wrote: > > I am interested in processing black-and-white images from a CCD. > >Do you really mean CCD or just a monochrome imaging device? >If cmos is ok, try the Mi
2003-11-21 by Kiran Mysore Ramaprasad
look at the Intel..they have a good application note on crystals used in micrcontroolers.. nangkon wrote: Thanks for the info! Is there an instrument (maybe Oscilloscope) to measure if the cap/crystal combination is ok? And what should I measure (frequency)? I really want to lear
2003-11-21 by Clark, Andy
> I am interested in processing black-and-white images from a CCD. Do you really mean CCD or just a monochrome imaging device? If cmos is ok, try the Mitsubishi M64282 which is used in the gameboy camera. Check http://pages.zoom.co.uk/andyc/camera.htm for my original info on the
2003-11-21 by Close, Jeffrey
Hi, I am interested in processing black-and-white images from a CCD. problem is, I don't know a good CCD to start with. can anyone recommend one? i have done some searches, but the ones i find (e.g. in Digikey) are overkill -- color and too high resolution. thanks in advance for
2003-11-21 by Close, Jeffrey
nangkon, I would recommend that you get a basic book on electrical networks and basic electronics technology. I'm sorry but most of my books on that are fairly old, so I can't recommend a good one now. You could find something like this almost anywhere -- a used bookstore, even R
2003-11-21 by John Samperi
At 03:47 AM 21/11/03 -0000, you wrote: >Anyone can point me to tutorial or web page how to >use cap in general. I can understand resistor, but >cap usage is still like a black magic to me when >I look at different schematics. How about a quick course in Electronics, any colleges
2003-11-21 by David VanHorn
At 03:47 AM 11/21/2003 +0000, nangkon wrote: >Thanks for the info! > >Is there an instrument (maybe Oscilloscope) to measure >if the cap/crystal combination is ok? And what should >I measure (frequency)? Probing a crystal will pull it off frequency, unless you use a special high
2003-11-21 by Al Welchaxxiom
I would use a frequency measurement device. We own a HP Meter that measures frequency and voltage. Also a Fluke Frequency meter. You could only look at general accuracy with scope. You could verify it is aprox. Correct but not accurate enough to use for real time. If you did not
2003-11-21 by nangkon
Thanks for the info! Is there an instrument (maybe Oscilloscope) to measure if the cap/crystal combination is ok? And what should I measure (frequency)? I really want to learn this so that I can apply the same technique for other scenario or for other chips. Anyone can point me t
2003-11-21 by Larry Barello
The mega8515 or mega128 would be a good choice as both have external SRAM memory bus for accessing ~64k. GCC from www.AvrFreaks.net is my choice of compiler. -----Original Message----- From: Theo Maryonovich [mailto:ted_marytl@sbcglobal.net] Hello users, I am new to this group an
2003-11-21 by Al Welch
I usually ask the vendor to find out what the crystal manufacturer suggest. It does vary. The suggestions already posted here will probably work. If you want to avoid the issue entirely, you can use an oscillator module that has the necessary parts inside it. These devices usuall
2003-11-21 by Mike Harrison
On Thu, 20 Nov 2003 19:44:59 -0000, you wrote: >I saw a lot of schematics that use 2 capacitors with >crystal that is connected to XTAL. Is there a way >to determine the appropriate values of capacitors? > >Do I need to use some equipments to do that? Or is >there a general rule
2003-11-21 by David VanHorn
At 09:56 PM 11/20/2003 +0000, nangkon wrote: >Thanks for your reply. > >I am planing to use a 16Mhz crystal with an >atmega128 mcu. I saw some schematic use >some values, and some do not use cap at all. Ceramic resonators can come with the caps built in, but they have three leads
2003-11-20 by Theo Maryonovich
Hello users, I am new to this group and AVR's in general. My experience is mainly with PIC 16,17,and 18 series controllers. Does anybody have a suggestion on a AVR controller to start with and a C compiler. I would like to process some low-speed video data. Thanks! Ted
2003-11-20 by nangkon
Thanks for your reply. I am planing to use a 16Mhz crystal with an atmega128 mcu. I saw some schematic use some values, and some do not use cap at all. I saw some crystal spec mentioning about load cap. Does this value come into the formulate somehow? What if I do not use cap? Wh
2003-11-20 by David VanHorn
At 07:44 PM 11/20/2003 +0000, nangkon wrote: >I saw a lot of schematics that use 2 capacitors with >crystal that is connected to XTAL. Is there a way >to determine the appropriate values of capacitors? > >Do I need to use some equipments to do that? Or is >there a general rule so
2003-11-20 by nangkon
I saw a lot of schematics that use 2 capacitors with crystal that is connected to XTAL. Is there a way to determine the appropriate values of capacitors? Do I need to use some equipments to do that? Or is there a general rule somewhere? thanks in advance
2003-11-20 by k5hj
--- In AVR-Chat@yahoogroups.com, "Michael" wrote: > Hi all, > > Has anyone seen a project/tutorial using an AVR to control a > graphical LCD? > > Best Regards, > Michael Here's one that uses a Nokia display: http://www.myplace.nu/mp3/
2003-11-20 by Matthew.Cook@tekelek.com.au
"Michael" wrote on 11/20/2003 12:22:16 PM: > Has anyone seen a project/tutorial using an AVR to control a > graphical LCD? There are a few, here is a good one. http://www.mictronics.de/?page=gps You can find the code on avrfreaks, search for HD61830 and you should find the thread
2003-11-20 by Michael
Hi all, Has anyone seen a project/tutorial using an AVR to control a graphical LCD? Best Regards, Michael
2003-11-16 by Ken Holt
Hi Stefan - Thanks for posting your avr olb. I did download it and used the Tiny26 right off. Ken Holt At 04:11 PM 11/15/2003 -0000, you wrote: > Hi AVRusers, > > The AVR OrCAD library on my AVR pages got a new update > (http://www.geocities.com/capecanaveral/6368 - click >""). >
2003-11-16 by Michael Buchstaller
>For high frequency output controlled by a low frequency input use a >PLL. (Phase Locked Loop) The use of a PLL ist not possible here, because i get the 160-times freq. at the input. That must be used to look up the wave table. To be honest, when i designed the first board that g
2003-11-16 by kanjjde
--- In AVR-Chat@yahoogroups.com, Michael Buchstaller For high frequency output controlled by a low frequency input use a PLL. (Phase Locked Loop) Look for a National Semiconductor LM565 data sheet for an application note that will multiple a frequency 10 times. That will allow yo
2003-11-15 by Michael Buchstaller
Hallo Group, for a customer i designed a board that takes MIDI input and gives out a pulse stream for 160 times the frequency of the MIDI note that is to be played. I did this with a set of programmable counters, a 100 MHz oscillator, and an 90S8515 controlling the values for the
2003-11-15 by Stefan Wimmer
Hi AVRusers, The AVR OrCAD library on my AVR pages got a new update (http://www.geocities.com/capecanaveral/6368 - click on "electronics/AVR based"). Meanwhile I had to upgrade to OrCAD Rev. 9.2 and it automatically converted all my libraries to a new format. Therefore I unfortun
2003-11-14 by Salam Gobran
Hi Is there any way to connect the Jery Meng programmer to Codevision AVR ?? _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail
2003-11-14 by Joe
Thanks for all of the replies and help. I am reading a serial data stream from a particle counter. They are always outputting. So I can read them whenever I want. It starts with an "=" and ends with a "CRLF", no handshaking. I massage the data and then stream it to a PC for data
2003-11-14 by Mark Weston
Ken, there may be a les expensive solution than adding another chip. Why not dedicate the hardware uart and a software uart for the comm stuph, and use another software uart for comm'ing to the LCD. After all, you're likely only going one way to the serial LCD anyway, no worry ab
2003-11-14 by jay marante
What fuse/fuses should i check if i use a 7.378MHz crystal for a 8MHz ATmega16? Tnx! -jay __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree
2003-11-13 by mpdickens
--- David VanHorn wrote: > You'll be far better off to use a low end AVR with > hardware, or software uart, and have THAT act as > your uart chip. I agree. You can get a really low end avr for less than $2.00 USD. Program it to do the task (Whatever that is...) and then hand the