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2007-01-24 by Ranjit Puri
You should try SDCC (Small Device C Compiler) by Sandeep Dutta. I have been using it for 2-3 years now with no probs at all.Also SDCC is free (GPL). Please see http://sdcc.sourceforge.net/ Regards Ranjit Puri On 1/24/07, mago Umandam wrote: > > I had seen the keil just a while ba
2007-01-24 by mago Umandam
I had seen the keil just a while back.. I dont know if it generates a hex file..i need the compiled hex file to load into the chip. Narendran wrote: how about trying keil.... keil is a fantastic one ... it supports a lot more controllers also... the trail version r available in t
2007-01-24 by omid2007ir
i want OBDII lcd with ATmega16 and ELM323,who is work with OBDII port ?pl help me
2007-01-24 by Leon
----- Original Message ----- From: "mago Umandam" To: Sent: Wednesday, January 24, 2007 10:20 AM Subject: Re: [AVR-Chat] compiler for AT89C2051 > Still looking for a compiler. Im not good in writing assembly. I want to > come up with compiled hex format. I am thinking on how to m
2007-01-24 by mago Umandam
Still looking for a compiler. Im not good in writing assembly. I want to come up with compiled hex format. I am thinking on how to make use of codevision. I have seen a header file AT892051.h from keil compiler but i dont have the keil compiler. Can i use that with codevision? th
2007-01-24 by Ori Y
Hi If you like wrote in assembler you can download form: www.rigelcorp.com/reads51.htm Or any other C or ASM complier that support the classic 51 family. The problem is to burn it cause It doesn't have Jtag. unless you have universal programmer. Ori --- magzky02 wrote: > > I got
2007-01-24 by Narendran
can any body sugest a good development board for ATmega controllers... it would be nice if the circuits of the board are available... since i can make my own pcbs with them ----- Original Message ----- From: AVR Development To: AVR-Chat@yahoogroups.com Sent: Wednesday, January 24
2007-01-24 by John Samperi
At 02:38 PM 24/01/2007, you wrote: >My question is: If I use 32K or less of the flash memory is there a way to >get the AVR Dragon to emulate for me? I don't believe so, don't know what the "Atmel rep" is talking about :) . You MAY BE able to do ISP or possibly JTAG programming w
2007-01-24 by AVR Development
Thanks David. Yeah, I did check that out it's about $195 USD. -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of David VanHorn Sent: Tuesday, January 23, 2007 8:32 PM To: AVR-Chat@yahoogroups.com Subject: Re: [AVR-Chat] I Need
2007-01-24 by David VanHorn
On 1/23/07, AVR Development wrote: > > Yes, but how much does that cost? What's better? IAR is most likely way > too expensive. If I remember right, about $200. [Non-text portions of this message have been removed]
2007-01-24 by AVR Development
Wait Wait, Nevermind. The software ports that are available use either IAR or ICC so I know the IAR is far more expensive than the ICC. ICC it is. -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of David VanHorn Sent: Tuesday,
2007-01-24 by AVR Development
Yes, but how much does that cost? What's better? IAR is most likely way too expensive. -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of David VanHorn Sent: Tuesday, January 23, 2007 7:55 PM To: AVR-Chat@yahoogroups.com Subje
2007-01-24 by David VanHorn
On 1/23/07, AVR Development wrote: > > I need a compiler for ATmega64 and ATmega1281. Our budget is limited. I > have the free GCC compiler that comes with WinAVR and I use that in AVR > Studio. Is there any reason why I should upgrade to the ICC > compiler? Are > there advantage
2007-01-24 by AVR Development
I need a compiler for ATmega64 and ATmega1281. Our budget is limited. I have the free GCC compiler that comes with WinAVR and I use that in AVR Studio. Is there any reason why I should upgrade to the ICC compiler? Are there advantages in features and performance? Joe Llama [Non-t
2007-01-24 by AVR Development
I think the AVR Dragon is the bomb (that means really good) at $49 but it only works on AVR processors with 32K of flash or less. I'd like to make an adapter board for the ATmega64 and the ATmega1281 to plug into the AVR Dragon. I've read about doing this and also have confirmed
2007-01-24 by Narendran
how about trying keil.... keil is a fantastic one ... it supports a lot more controllers also... the trail version r available in the net for free donload... the limitation in the trail version is the max code size should be 2k ----- Original Message ----- From: magzky02 To: AVR-
2007-01-24 by James Hatley
Hello, You probably know this but... I assume you are reading the PINx bit rather than the PORTx bit on input of data. (After changing the DDRx, of course.) I always seem to forget to do this since I've always done so much Moto stuff in the past. It has got me a number of times.
2007-01-24 by Thomas Keller
I am not familiar with the 2051. Is it one of the 8051 derivative processors? If so, I believe GCC will support it. magzky02 wrote: > > > I got a board with AT89C2051. Anyone who can suggest a compiler for > this? I got a codevision and AVRstudio but seems they do not support > A
2007-01-24 by magzky02
I got a board with AT89C2051. Anyone who can suggest a compiler for this? I got a codevision and AVRstudio but seems they do not support AT89C2051. thanks
2007-01-23 by David Kelly
On Tue, Jan 23, 2007 at 04:31:33PM -0500, Jim Wagner wrote: > Several of the data sheets have comments about changing port > direction. If you don't do it "right", you can get an unwanted > single-instruction transient on the port pin. > > At the moment, I don't recall the detail
2007-01-23 by Jim Wagner
Several of the data sheets have comments about changing port direction. If you don't do it "right", you can get an unwanted single-instruction transient on the port pin. At the moment, I don't recall the details but it might be worth checking one of the newer data sheets (such as
2007-01-23 by David Kelly
On Tue, Jan 23, 2007 at 09:02:43PM -0000, billsputters wrote: > What is the considered wisdom regarding changing a port from output to > input? I am trying to interface to a LCD display and attempting to > read the busy flag which is available on the data lines of the device. > I
2007-01-23 by billsputters
What is the considered wisdom regarding changing a port from output to input? I am trying to interface to a LCD display and attempting to read the busy flag which is available on the data lines of the device. I've looked around and some code just changes the DDR as required and s
2007-01-23 by timbomcnuckle
--- In AVR-Chat@yahoogroups.com, "timbomcnuckle" wrote: > > stuff 4 sale updated.... > thanks to all who replied, I've made a deal on the CFkit and box (s) > of IC's! > > I still have up for sale the following and 2 other items::Prices are > in CDN and I'm located in Victoria BC
2007-01-23 by Leon
----- Original Message ----- From: "Ümit Sen" To: Sent: Monday, January 22, 2007 11:32 PM Subject: [AVR-Chat] Platform Design for Camera > Hi all, > > We have a robot that has two stereo cameras on it which are used to > analyze > how much meters the robot had gone.We do that by
2007-01-23 by Thomas Keller
You want to use an X-Y accelerometer sensor for this application. TI just announced a new X-Y-Z accelerometer chip for about $3 (US) which would probably be perfect for this application. They alos offer numerous useful applicaitons notes on the application and use of the accelero
2007-01-23 by Russell Shaw
David VanHorn wrote: >>> If there isn't enough load to pull that current back out of the rail, >> you >>> end up raising the 3.3V rail out of spec. >> Latchup only happens over a certain thresh-hold, so if you're confident >> that your overdrive is always much lower than that, th
2007-01-23 by mago Umandam
Hi John, Thank you for the comment. I was using ATmega16 before and reseting the device is doing the otherway around. mago John Samperi wrote: At 12:43 PM 23/01/2007, you wrote: >I am puzzled on AT89C2051...datasheet >says that holding the reset high will reset the device... DOes
2007-01-23 by David VanHorn
> > > If there isn't enough load to pull that current back out of the rail, > you > > end up raising the 3.3V rail out of spec. > > Latchup only happens over a certain thresh-hold, so if you're confident > that your overdrive is always much lower than that, then problem solved. I
2007-01-23 by Russell Shaw
David VanHorn wrote: >> If the data rate isn't too fast and the latchup current of overdriven >> inputs is specified, you can use a single series resistor between output >> and input. Even if the latchup current isn't specified, you can still gain >> some confidence by abusing a
2007-01-23 by David VanHorn
> > If the data rate isn't too fast and the latchup current of overdriven > inputs is specified, you can use a single series resistor between output > and input. Even if the latchup current isn't specified, you can still gain > some confidence by abusing a chip with 10-20mA overd
2007-01-23 by Russell Shaw
kernels_nz wrote: > Hi Again ! I ended up using the resistor method in my design - main > problem was not the cost of adding 14 resistors, but rather that id > already designed the PCB and it was a pain in the A to add 14 > resistors to the tightly packed Nordic RF circuit. Manag
2007-01-23 by John Samperi
At 12:43 PM 23/01/2007, you wrote: >I am puzzled on AT89C2051...datasheet >says that holding the reset high will reset the device... DOes this >mean i have to pull down the reset pin? Correct, this chip is not an AVR. Some micros do need the reset to be high some to go low. Regar
2007-01-23 by magzky02
Hello guys, I need help, As far as i know, reset pin sould be pulled up... pulling it down will reset the device... I am puzzled on AT89C2051...datasheet says that holding the reset high will reset the device... DOes this mean i have to pull down the reset pin? datasheet also spe
2007-01-22 by Ümit Şen
Hi all, We have a robot that has two stereo cameras on it which are used to analyze how much meters the robot had gone.We do that by image processing.However,the robot works on a smooth surface.Now,I consider to design a platform for cameras so that although the robot travels on
2007-01-22 by David VanHorn
Contact me offlist if you think you might need, or know of a place that needs a guy like me. I'm in east-central indiana, but that's somewhat flexible. -- Feel the power of the dark side! Atmel AVR [Non-text portions of this message have been removed]
2007-01-22 by David VanHorn
> > > I was only hoping someone would say something like : "Oh on, don't use > resistors, the simplest way that takes zero space is . . . " didn't > get the answer I was hoping for unfortunately. No, and if you'd tried to drive those pins directly, that would have been bad. Remin
2007-01-22 by John Samperi
At 07:55 PM 22/01/2007, you wrote: >http://en.wikipedia.org/wiki/Sziklai_pair It would be nice to how many pins (out of 12??) are inputs and how many are outputs to the processor (I could look it up ;) ??). Not all of them will be data or clock pins I suppose. For the data and cl
2007-01-22 by kernels_nz
Hi Again ! I ended up using the resistor method in my design - main problem was not the cost of adding 14 resistors, but rather that id already designed the PCB and it was a pain in the A to add 14 resistors to the tightly packed Nordic RF circuit. Managed to fit them in using 06
2007-01-22 by David VanHorn
> > > if he runs it that fast he should use a driver, under 100KHz he's almost > certainly safe with the resistor divider method IMO. For this specific application, I know the chips involved, and I can't see any reason not to use the resistor method. [Non-text portions of this me
2007-01-22 by dlc@frii.com
The main advantage is high input Z and low output Z. I've used the resistor divider 3.3V/5V matching design on circuits up to 40KHz transfer rates with no problems. If you use smaller value resistors (well under 10K) then unless you have some WAY high line capacitance things will
2007-01-22 by David VanHorn
On 1/22/07, Jim Wagner wrote: > > This has no real advantage that I can see for level > shifting. It's another option, but as to what advantage, I don't know. > Rather than this, just use a transistor/fet and a > pullup resistor. Well, that normally inverts the sense of the signa
2007-01-22 by Jim Wagner
This has no real advantage that I can see for level shifting. Rather than this, just use a transistor/fet and a pullup resistor. With one of these, you still need a pullup and you have used two transistors. It is still inverting like a single transistor would be, which makes neit
2007-01-22 by dlc@frii.com
It's a dangerous game you play, not having the source. It might be worth it to re-engineer the project! For what it's worth, I've not seen that issue, but the potential for odd things happening looked so great to me that I re-wrote my code for the mega8535 rather than rely upon t
2007-01-22 by David VanHorn
On 1/22/07, erikc wrote: > > Thanks. Just never heard that configuration called that. What other names does it go by? [Non-text portions of this message have been removed]
2007-01-22 by Magnus Johansson
Hi! I've just been handed an old project for which the sourcecode is lost. The board uses an AT90S8535 processor and has been upgraded to a ATmega8535. The compatibility bit has been programmed and everything's ok except for one thing. ADC0-ADC2 are used and for some reason these
2007-01-22 by erikc
Thanks. Just never heard that configuration called that. sm5glc wrote: > http://en.wikipedia.org/wiki/Sziklai_pair > > --- In AVR-Chat@yahoogroups.com, erikc wrote: >> David VanHorn wrote: >> >>> You can also use a Szaiklai pair, to convert the 3V outputs to 5V > rails >> What? >
2007-01-22 by erikc
David VanHorn wrote: > You can also use a Szaiklai pair, to convert the 3V outputs to 5V rails What? -- erikc -- GILLETTE'S PRINCIPLE: "If you want to make people angry, lie. If you want to make them absolutely livid with rage, tell the truth."
2007-01-22 by sm5glc
http://en.wikipedia.org/wiki/Sziklai_pair --- In AVR-Chat@yahoogroups.com, erikc wrote: > > David VanHorn wrote: > > > You can also use a Szaiklai pair, to convert the 3V outputs to 5V rails > > What? > > > -- > erikc > --
2007-01-22 by timbomcnuckle
stuff 4 sale updated.... thanks to all who replied, I've made a deal on the CFkit and box(s) of IC's! I still have up for sale the following and 2 other items::Prices are in CDN and I'm located in Victoria BC (thats canada :) sorry but no paypal!!! -Deihl Servomotor assembly- mid