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2008-02-27 by John Samperi
At 08:23 AM 28/02/2008, you wrote: > While expensive programmer hardware can be nice, .... >one can get bv dirt cheap with AVRs, without problems. I consider $30 not very expensive and even dirt cheap for a tool. Sure you could get away with a gas stove heated soldering iron, but
2008-02-27 by Enki
On 28 Feb 2008 at 8:01, John Samperi wrote: > Having said that I too did start with a 4 resistor > PP programmer...but being clever did not mess anything up. > Well, I never used that resistor programmer. I built a programmer using a 74HC244 buffering the parallel port. And it ha
2008-02-27 by David VanHorn
On Wed, Feb 27, 2008 at 4:32 PM, np np wrote: > In my experience its best to buy programmers made by the same manufacturer as the chips I am using. > > Sorry to mention PIC's but I have heard of lots of problems with none Microchip programmers. > I can only guess the same is true
2008-02-27 by John Samperi
At 08:30 AM 28/02/2008, you wrote: >Various Jtag ices that work or don't work >depending on the phase of the moon, and a couple ICE-50's that work if >they feel like it. Yes but that's your fault for keep on running over black cats, breaking mirrors, walking under ladders etc. LO
2008-02-27 by np np
In my experience its best to buy programmers made by the same manufacturer as the chips I am using. Sorry to mention PIC's but I have heard of lots of problems with none Microchip programmers. I can only guess the same is true for AVR. ----- Original Message ---- From: Tom To: AV
2008-02-27 by David VanHorn
There are those who tell me that AVR Studio is a reliable debugging platform too. I would agree, if allowed to use a different definition of "reliable".. I used a BA1FB programmer to do my first AVR project, which went from concept to delivery in six weeks, and never had any issu
2008-02-27 by Dennis Clark
> At 01:32 AM 28/02/2008, you wrote: >>I was aware of the parallel port/serial port "homebrew" programmers >>but the impression I was given on various websites is that these were >>slow in comparison with the AVRISP or dragon/stk programmers. Or is >>that incorrect? > > And also
2008-02-27 by Tom
John Samperi wrote: > > At 06:52 PM 27/02/2008, you wrote: > > You can use a parallel > >port (assuming your PC has one), and a 4 wire cable, wired to a piece of > >perfboard, or to pins that can > >\be pligged into your solderless breadboard, for programming. Dead > simple. > >
2008-02-27 by John Samperi
At 01:32 AM 28/02/2008, you wrote: >I was aware of the parallel port/serial port "homebrew" programmers >but the impression I was given on various websites is that these were >slow in comparison with the AVRISP or dragon/stk programmers. Or is >that incorrect? And also NOT SUPPOR
2008-02-27 by John Samperi
At 11:45 PM 27/02/2008, you wrote: > That's not my experience. > Some years doing exactly that with no problems. You must be one of the clever ones :-) I wish I had $1 for every time I hear the clock fuse being messed up or other ugly thing happening with PP programmers. Having s
2008-02-27 by Dennis Clark
I have an odd behavior I'm wondering if anyone else has seen. I use avrdude on OSX Macintosh to program an ATMEGA8535 via the AVR-ISP. For a while it works fine, programs in fine speed, all is good. After about a dozen downloads the same process has slowed down to one record per
2008-02-27 by BobGardner@aol.com
I was aware of the parallel port/serial port "homebrew" programmers but the impression I was given on various websites is that these were slow in comparison with the AVRISP or dragon/stk programmers. Or is that incorrect? ==================================================== Make
2008-02-27 by Philip Hahn
Hey guys, Thanks again for the feedback. I really want to design something from the ground up. I've used several canned controller boards before and I'd like to start with a chip and build my own from there. Both the STK500 and dragon can be used as ISP programmers correct? I was
2008-02-27 by Dyan Fassett
You might look into the Dragon Rider 500 for the Dragon ... It has many of the features of the stk500 but much smaller. I love mine. Also have the Mavric I, I purchased the bare board and built up a 3.3v version, a very well designed PCB... Dyan...KV9R
2008-02-27 by Enki
On 27 Feb 2008 at 19:34, John Samperi wrote: > At 06:52 PM 27/02/2008, you wrote: > > You can use a parallel > >port (assuming your PC has one), and a 4 wire cable, wired to a piece of > >perfboard, or to pins that can > >\be pligged into your solderless breadboard, for programmi
2008-02-27 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Philip Hahn" wrote: > ... a ... "starter kit" could > be had with just a few AVR's, a > ISP programmer and some voltage > regulators, correct? Sure, if this is the way you want to go. So, given that this is all for fun and that you're on a budget
2008-02-27 by John Samperi
At 06:52 PM 27/02/2008, you wrote: > You can use a parallel >port (assuming your PC has one), and a 4 wire cable, wired to a piece of >perfboard, or to pins that can >\be pligged into your solderless breadboard, for programming. Dead simple. ....which is usually followed by Dead
2008-02-27 by Roy E. Burrage
Why should he be ashamed of himself? I didn't take Graham's comments as "putting [you] down" nor did it appear he was hawking his stuff, just expressing an opinion...which is the reason for this list. The original poster was looking for advice about a programmer. Most of the resp
2008-02-27 by Tom
Philip Hahn wrote: > > Mr Graham and others, > > My apologies on the long delayed response. My kids got sick this > weekend, then my wife, and now I have succumbed! > > I am planning on getting into **mobile** robotics. Off-topic, but I > have this prototying system called Fische
2008-02-27 by Mike Bronosky
On Tue, Feb 26, 2008 at 8:57 PM, Graham Davies wrote: > > You can't put an > > STK500 on a robot! > Why can't you? Is there a law, or something, that says it cannot be done? Please provide us with the link. Sure, you can't use it on a Mini-Sumo Robot Contest. Here are those rules
2008-02-27 by Philip Hahn
Mr Graham and others, My apologies on the long delayed response. My kids got sick this weekend, then my wife, and now I have succumbed! I am planning on getting into **mobile** robotics. Off-topic, but I have this prototying system called Fischertechnik, which is a neat system of
2008-02-27 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "brewski922" wrote: > ... I don't thank [sic] you could go > wrong with the STK500, about $80. The OP (who has not answered any of our questions and is leaving us to argue among ourselves) wants to get into robotics. You can't put an STK500 on a r
2008-02-26 by brewski922
In my earlier post in the paragraph replace "and" with "as". Sorry! After you get familiar programming the AVRs and the STK500 you can get some robotic parts and use the STK500 "as" the controller. Later on you can go to a dedicated robotic PC board. > For sources there is also S
2008-02-26 by bobby cossum
--- In AVR-Chat@yahoogroups.com, "Philip Hahn" wrote: > > Good Afternoon, > > I'm looking into digging into AVR's and looking for some advice before > I spend any money. My goal is to do some robotics control projects, > preferably programming in C/C++ although I think it would b
2008-02-26 by brewski922
For sources there is also SparkFun www.sparkfun.com From the way you talk I don't thank you could go wrong with the STK500, about $80. For programming software, in Windows, there is: AVRStudio free from Atmel WinAVR (pronounced winever) free from winavr.sourceforge.net CodeVision
2008-02-26 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Philip Hahn" wrote: > What would you guys recommend > as a "starter kit" ... I think you should look in the tools section of AVRFreaks, where you will find a wide variety of programmers, debuggers and development boards. Many of them work as well
2008-02-26 by dlc
There are a couple of nice places to go for AVR stuff. http://www.bdmicro.com http://www.pololu.com Are my favorites for reasonably priced boards with very good hardware functionality and support libraries. There are other places for ultra-low cost boards, but they tend to be lit
2008-02-26 by Philippe Habib
I was pretty impressed by the BD Micro Maveric board. For about $130 you get the micro, all of the I/O brought out and a handful of peripherals. On Feb 25, 2008, at 12:36 PM, Philip Hahn wrote: > Good Afternoon, > > I'm looking into digging into AVR's and looking for some advice
2008-02-26 by John Samperi
At 07:36 AM 26/02/2008, you wrote: >whatever the PIC basic language is called), It's called !@#$%^&*****(((!!@# (or swearing, in English) >What would you guys recommend as a "starter kit" The STK500 and the Dragon make a good combination. The Dragon will do ISP, JTAG and HVPP pro
2008-02-25 by Philip Hahn
Good Afternoon, I'm looking into digging into AVR's and looking for some advice before I spend any money. My goal is to do some robotics control projects, preferably programming in C/C++ although I think it would be valuable to learn the native instruction set as well. No more th
2008-02-25 by John Samperi
At 01:54 AM 26/02/2008, you wrote: >ok, so i have learned that to reset TOV1 i must set it. very zen. >(exactly how far north were the guys who designed this chip? This is standard procedure with other brands of processors too, not just AVR. Regards John Samperi *****************
2008-02-25 by bobby cossum
--- In AVR-Chat@yahoogroups.com, "David VanHorn" wrote: > This is very nice in that you can clear all the flags simply by > reading the flag byte and writing it back. > Small price to pay. Clear any one flag by writing that bit to a one. > ok. so my feeble little TIFR1 &= ~(1 > l
2008-02-25 by David VanHorn
> ok, so i have learned that to reset TOV1 i must set it. very zen. > (exactly how far north were the guys who designed this chip? bet it > was summer. couldn't sleep on account of 24 hour daylight.) This is very nice in that you can clear all the flags simply by reading the flag
2008-02-25 by David VanHorn
On Sun, Feb 24, 2008 at 5:52 PM, J C wrote: > I am trying to control 2 servos with an ATMEGA16 running off of an 8MHz crystal. I have tried to figure it out with various code examples on the internet but don't seem to be getting it. Here is my code, any ideas? What I do, is to se
2008-02-25 by bobby cossum
--- In AVR-Chat@yahoogroups.com, "bobby cossum" wrote: > > > if (TIFR1 & (1 TIFR1 &= ~(1 if (++t1Count == 15) { > PORTD ^= 0x80; > t1Count = 0; > } > } ok, so i have learned that to reset TOV1 i must set it. very zen. (exactly how far north were the guys who designed this chip? b
2008-02-25 by avrx123456789
1. Have you checked that the assembler is looking for the file that you are looking at ? A misspelling in a make file could have this effect. 2. Have you checked, both in your code, and in your include file, for non-printable characters that could be confusing the assembler, but
2008-02-24 by J C
I am trying to control 2 servos with an ATMEGA16 running off of an 8MHz crystal. I have tried to figure it out with various code examples on the internet but don't seem to be getting it. Here is my code, any ideas? #include #define F_CPU 8000000 // Set for Prescaler of 8 at 8MHz
2008-02-20 by bobby cossum
oh, yeah... atmega168, 16MHz resonator.
2008-02-20 by bobby cossum
i'm trying to get a 30Hz pulse out of timer 1. i initialize it as follows... // // set up timer 1, ca 30Hz, fast pwm mode 15, prescale = 64, top = 8333, no interrupts // TCCR1B = 0; // stop timer 1 TIMSK1 = 0; // disable all interrupts on timer 1 TCCR1A = (1
2008-02-16 by David Kelly
On Feb 16, 2008, at 10:39 AM, Tom Becker wrote: > Do I misunderstand that Bluetooth will not deliver received data that > has not been validated? A few years ago we did some simple range > testing with several Bluetooth radios. At a distance that was greater > than the expected r
2008-02-16 by David Kelly
On Feb 16, 2008, at 4:02 PM, dlc wrote: > What are you using? I've used Bluetooth and XBee and neither have > ever > given me bad data (no data at all when out of range though.) The OP sounded like a school assignment (typical plea for help with no details as to how anything is b
2008-02-16 by dlc
What are you using? I've used Bluetooth and XBee and neither have ever given me bad data (no data at all when out of range though.) DLC bhadson2001 wrote: > i am recieving data from serial port of PC to AVR. sometimes > controller recieve data different. i am using 4 byte frame t
2008-02-16 by John Samperi
At 01:34 AM 16/02/2008, you wrote: > I'm sending you my CodeVersionAVR , VMLAB and Proteus project version! And what am I supposed to do with that? Sorry for asking silly questions....... Regards John Samperi ******************************************************** Ampertronics P
2008-02-16 by dlc
There is no way to connect your parallel port programmer to USB or serial. You'll need another programmer that works on USB or serial. DLC majid_pow wrote: > i have an avr programmer but it connects to computer via DB-25 and my > computer doesn't have DB-25.How can i connect this
2008-02-16 by Tom
majid_pow wrote: > > i have an avr programmer but it connects to computer via DB-25 and my > computer doesn't have DB-25.How can i connect this programmer to usb > or com ? how can i chage DB-25 to DB-9 or usb?THANKS > You will need to obtain a parallel USB adapter. Typically ava
2008-02-16 by Tom Becker
> ... 1) get a better radio link. Do I misunderstand that Bluetooth will not deliver received data that has not been validated? A few years ago we did some simple range testing with several Bluetooth radios. At a distance that was greater than the expected range, a packet was han
2008-02-16 by David VanHorn
Check that your baud rate is accurate. Check that your radio is compatible with async serial data. Many are not.
2008-02-16 by James Wagner
You can also do an acknowledge and retry. Error checking only tells you that the received data is bad. One scheme goes like this.... 1. Sender transmits data block (packet) with CRC or checksum 2. Receiver checks CRC or checksum. If OK, it sends a short "ACK" message back. If bad
2008-02-16 by David Kelly
On Feb 15, 2008, at 10:06 AM, bhadson2001 wrote: > i am recieving data from serial port of PC to AVR. sometimes > controller recieve data different. i am using 4 byte frame to > recognize a particular command. sometimes it picks up different > command. what will i do to solve the
2008-02-16 by Zack Widup
If you don't want to do the hardwiring yourself (no big deal really) you can get a DB-9 to DB-25 serial adaptor. If you don't mind doing the hardwiring, do a Google search for "DB-9 DB-25 RS-232" or something similar and you'll find a schematic of the wiring pattern. You most lik