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2005-02-03 by Bruce Parham
Stefan Trethan wrote: > > On Thu, 03 Feb 2005 08:27:55 -0800, Bruce Parham > wrote: > > > > > Well I can and did. If you look at the AVR component and count the pins, > > you'll see > > that pins 17, 18, 38 and 39 are missing. Atmel seems to thing these pins > > should be > > con
2005-02-03 by Stefan Trethan
On Thu, 03 Feb 2005 08:27:55 -0800, Bruce Parham wrote: > > Well I can and did. If you look at the AVR component and count the pins, > you'll see > that pins 17, 18, 38 and 39 are missing. Atmel seems to thing these pins > should be > connected to Vcc and GND. It might help... >
2005-02-03 by Javier Fiasche
Thanks a lot bruce, i did had that in mind while designning , but i measured the voltage at those pins and it is VCC and GND Thanks a lot, i'll figure the way to connect them Javier -----Mensaje original----- De: Bruce Parham [mailto:obparham@jpl.nasa.gov] Enviado el: Jueves, 03
2005-02-03 by Bruce Parham
Dave VanHorn wrote: > > At 10:20 AM 2/3/2005, Javier Fiasche wrote: > >Here goes the SCH............. > >I someone realises what ist wrong, please tell me > > Don't post binaries to everyone. You just sent out hundreds of emails with > attached files that almost nobody can open s
2005-02-03 by Javier Fiasche
I belive stack inicialization is made by Codevision C compiler. Watchdog isnt used at this moment. It should be turned off Thanks Javier -----Mensaje original----- De: Mark Jordan [mailto:mark@cpovo.net] Enviado el: Jueves, 03 de Febrero de 2005 01:14 p.m. Para: AVR-Chat@yahoogro
2005-02-03 by Stefan Trethan
On Thu, 03 Feb 2005 16:04:34 -0000, Don Kinzer wrote: > > As I read the documentation, you can use PB4 as a general output > while using SPI in master mode. Of course, you still need some way > to drive the slave's SS/ input. > It also says, "If SS/ is configured as an input, it
2005-02-03 by Mark Jordan
I didn't find the STACK initialization. And the Watchdog, too. Mark Jordan On 3 Feb 2005 at 12:56, Javier Fiasche wrote: > > Here goes the inicialization routine > > > void init_mega32(void) > { > > #ifndef DEGUB > MCUCSR|=0x80;// Disable JTAG > #endif > > // Port A initializatio
2005-02-03 by Lasse Madsen
When running your processor as a master you can freely use the SS pin AS LONG AS it's an OUTPUT You can use it for driving slave SS pins or anything else. Regards lasse _____ From: Don Kinzer [mailto:dkinzer@easystreet.com] Sent: 3. februar 2005 17:05 To: AVR-Chat@yahoogroups.com
2005-02-03 by Javier Fiasche
Guys, another clue.......... I changed the fuse bits to run with thew internal clock at 8 mhs and it did not start even with the isp programmmer connected i cahnged it back to run at 1mhs internal and the only way i could make it run was with the isp reset.... Ideas??? Thanx Javi
2005-02-03 by Javier Fiasche
Here goes the inicialization routine void init_mega32(void) { #ifndef DEGUB MCUCSR|=0x80; // Disable JTAG #endif // Port A initialization PORTA=0b00001000; DDRA=0b00001000; // Port B initialization DDRB=0b00000000; PORTB=0b00001111; // Port C initialization DDRC=0b10110000; PORTC
2005-02-03 by Mark Jordan
On 3 Feb 2005 at 12:56, Paul Maddox wrote: > > I'm doing a fair bit of floating point calculations and 16bit data > manipulation, needless to say, an 8bit micro is less than ideal... > I did once a BELL-202 modem using an ATMEGA8 @ 6.144MHz. The demodulation routine used fixed-po
2005-02-03 by Mark Jordan
Could you post here your initialization routine? I suspect your software is doing something wrong. Mark Jordan On 3 Feb 2005 at 9:43, Javier Fiasche wrote: > > > I have: > > all vcc pins 5.05v > rst pin 4.89 v > and the device is at mega32l > > javier > > > -----Mensaje original-
2005-02-03 by Dave VanHorn
At 10:20 AM 2/3/2005, Javier Fiasche wrote: >Here goes the SCH............. >I someone realises what ist wrong, please tell me Don't post binaries to everyone. You just sent out hundreds of emails with attached files that almost nobody can open since they likely don't have the so
2005-02-03 by Javier Fiasche
Here goes the SCH............. I someone realises what ist wrong, please tell me Thanks Javier -----Mensaje original----- De: Stefan Trethan [mailto:stefan_trethan@gmx.at] Enviado el: Jueves, 03 de Febrero de 2005 12:06 p.m. Para: AVR-Chat@yahoogroups.com Asunto: Re: [AVR-Chat] R
2005-02-03 by Stefan Trethan
On Thu, 3 Feb 2005 11:36:54 -0300, Javier Fiasche wrote: > Ok, thanks Zack, i am using a programmer called Ser2conmini, its uses > Com port control and data signals, i made it myselfThe configuration > bits are configured ok, the cpu runs, but only with an external power > source
2005-02-03 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "Stefan Trethan" wrote: > simple question, i want to use the SPI on the mega16 in DIL40. > Normally if i want a device to be master only i'd tie SS_not high. > > Now, i'm kind of tight on pins already, so i would like to use > SS_not as a digital
2005-02-03 by Javier Fiasche
Ok, thanks Zack, i am using a programmer called Ser2conmini, its uses Com port control and data signals, i made it myself The configuration bits are configured ok, the cpu runs, but only with an external power source connected to the rst line. If i just plug the programmer to my
2005-02-03 by Zack Widup
On Thu, 3 Feb 2005, Stefan Trethan wrote: > > On Thu, 3 Feb 2005 09:43:51 -0300, Javier Fiasche > wrote: > > > > > > > I have: > > > > all vcc pins 5.05v > > rst pin 4.89 v > > and the device is at mega32l > > > > javier > > > > then there is some other fault. > Maybe the program
2005-02-03 by Dave VanHorn
At 07:52 AM 2/3/2005, Paul Maddox wrote: >Dave, > > > the ASIC versions of the AVR go a bit faster, like 20-40 MHz IIRC. > > Would that work for you? > >40 mhz would be superb, but I don't have the code finalised yet, makes me >wonder though, the SRAM based AVRs are quicker aswel
2005-02-03 by Stefan Trethan
Hi, simple question, i want to use the SPI on the mega16 in DIL40. Normally if i want a device to be master only i'd tie SS_not high. Now, i'm kind of tight on pins already, so i would like to use SS_not as a digital IO pin, i just want to be sure i can do that (not wanting to ma
2005-02-03 by Stefan Trethan
On Thu, 3 Feb 2005 09:43:51 -0300, Javier Fiasche wrote: > > > I have: > > all vcc pins 5.05v > rst pin 4.89 v > and the device is at mega32l > > javier > then there is some other fault. Maybe the programmer you use doesn't change reset after all, but maybe it has pullups or some
2005-02-03 by Javier Fiasche
I have: all vcc pins 5.05v rst pin 4.89 v and the device is at mega32l javier -----Mensaje original----- De: Stefan Trethan [mailto:stefan_trethan@gmx.at] Enviado el: Jueves, 03 de Febrero de 2005 09:24 a.m. Para: AVR-Chat@yahoogroups.com Asunto: Re: [AVR-Chat] Re: Bootup/reset v
2005-02-03 by Stefan Trethan
On Thu, 3 Feb 2005 08:53:00 -0300, Javier Fiasche wrote: > As i use the external reset source (ex ISP programmer,) , i works almost > fine(LCd, etc works), the problem is when i remove the isp, the cpu > seems to halt. I am using internal clock so i cant check the > oscilator.If
2005-02-03 by Hans Kallen
Hi, One approach I successfully used for remotely powering RS-485 nodes is to use a small step-up DC converter on each node. With a MAX1674, each node runs on 1.8 to 5.5V which works well on e.g. 4 AA cells or a long supply line. I recently have designed such a node controller wi
2005-02-03 by Kathy Quinlan
Javier Fiasche wrote: > As i use the external reset source (ex ISP programmer,) , i works almost > fine(LCd, etc works), the problem is when i remove the isp, the cpu > seems to halt. I am using internal clock so i cant check the oscilator. > If i powwer on the board withoput the
2005-02-03 by Paul Maddox
Jerry, > Renesas is running a Renesas contest based on their M16 > microcontrollers (yes, they are CISC, I know...). One thing you can > do right now is sign up for a demo of their hardware and compiler on a > live computer at a remote site. If you like it, you can apply to get >
2005-02-03 by Paul Maddox
Mike, > Certainly a faster chip will help you but not if your code is poorly > written from a performance point of view. Before jumping ship, have you > tried to isolate the problem more into what part of the code is slow? I'm doing a fair bit of floating point calculations and 1
2005-02-03 by Javier Fiasche
As i use the external reset source (ex ISP programmer,) , i works almost fine(LCd, etc works), the problem is when i remove the isp, the cpu seems to halt. I am using internal clock so i cant check the oscilator. If i powwer on the board withoput the isp, it never stars to run Th
2005-02-03 by Kathy Quinlan
Javier Fiasche wrote: > the 7805 already has .33uf and 100 uf capacitors, and every ic has a > 100nf bypass capacitor near it, Any other suggestions, i am about to > break the board!!, jejeje :-( I would suspect the uC :( Regards, Kat. -- -----------------------------------------
2005-02-03 by Paul Maddox
Dave, > the ASIC versions of the AVR go a bit faster, like 20-40 MHz IIRC. > Would that work for you? 40 mhz would be superb, but I don't have the code finalised yet, makes me wonder though, the SRAM based AVRs are quicker aswell... Why can't I run a mega16 at 32Mhz? Assuming I d
2005-02-03 by Stefan Trethan
On Thu, 3 Feb 2005 08:17:31 -0300, Javier Fiasche wrote: > the 7805 already has .33uf and 100 uf capacitors, and every ic has a > 100nf bypass capacitor near it, Any other suggestions, i am about to > break the board!!, jejeje :-( When you connect reset to 5V it must run, if it d
2005-02-03 by Javier Fiasche
the 7805 already has .33uf and 100 uf capacitors, and every ic has a 100nf bypass capacitor near it, Any other suggestions, i am about to break the board!!, jejeje :-( -----Mensaje original----- De: Tiberius Ariton [mailto:ariton@home.ro] Enviado el: Miércoles, 02 de Febrero de 2
2005-02-03 by leon_heller
--- In AVR-Chat@yahoogroups.com, "Javier Fiasche" wrote: > the 7805 already has .33uf and 100 uf capacitors, and every ic has a 100nf > bypass capacitor near it, Any other suggestions, i am about to break the > board!!, jejeje :-( Is the oscillator running - check with a scope. L
2005-02-03 by Leon Heller
----- Original Message ----- From: user1295 To: AVR-Chat@yahoogroups.com Sent: Thursday, February 03, 2005 12:33 AM Subject: [AVR-Chat] Re: 90S1200 I was aked to upload the lab I am following so here it is http://faculty.kc.devry.edu/bpruitt/ECT252/ECT252Labs/Lab%203/Lab% 2003%20
2005-02-03 by Leon Heller
From: sami saqqa To: AVR-Chat@yahoogroups.com Sent: Thursday, February 03, 2005 12:52 AM Subject: Re: [AVR-Chat] something a bit faster how about over-clocking the AVR for me i over-colck mega8535-8 to 24.5MHz my project was a digital filter i know it is not a good thing to do bu
2005-02-03 by Mike Perks
sami saqqa wrote: > how about over-clocking the AVR > for me > i over-colck mega8535-8 to 24.5MHz > my project was a digital filter > i know it is not a good thing to do but in my case, it work just fine > > note: at 30MHz the mega8535 dose not work Before everyone gets all excit
2005-02-03 by Larry Barello
Once I accidentally put a 16mhz crystal onto an 8mhz mega163. It didn't work correctly until I bumped the STK500 board voltage to 6.1v (maybe less) but it ran reliably after that. The baud rate was all wrong, however, and that is how I discovered my mistake :) -----Original Messa
2005-02-03 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, sami saqqa wrote: > i over-colck mega8535-8 to 24.5MHz Was it necessary to use an external clock source or did you use a crystal on the Xtal1/Xtal2 pins? Don
2005-02-03 by Zack Widup
Just out of curiosity, what are you using to program the AVR? Zack On Thu, 3 Feb 2005, user1295 wrote: > > I was aked to upload the lab I am following so here it is > http://faculty.kc.devry.edu/bpruitt/ECT252/ECT252Labs/Lab%203/Lab% > 2003%20(Traffic%20Light).doc I hope this com
2005-02-03 by sami saqqa
how about over-clocking the AVR for me i over-colck mega8535-8 to 24.5MHz my project was a digital filter i know it is not a good thing to do but in my case, it work just fine note: at 30MHz the mega8535 dose not work Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced se
2005-02-03 by user1295
I'm using a serial interface AVR programmer made by danco
2005-02-02 by user1295
I was aked to upload the lab I am following so here it is http://faculty.kc.devry.edu/bpruitt/ECT252/ECT252Labs/Lab%203/Lab% 2003%20(Traffic%20Light).doc I hope this comes up right
2005-02-02 by alan_probandt
--- In AVR-Chat@yahoogroups.com, "user1295" wrote: > > I'm taking my first mircoprocessing class and we are working with > the atmel 1200 chip and I do not know how to program a clock cycle > for it/ I am using AVR studio 4 if that matters. If you can help > me I will love it. If
2005-02-02 by user1295
I'm taking my first mircoprocessing class and we are working with the atmel 1200 chip and I do not know how to program a clock cycle for it/ I am using AVR studio 4 if that matters. If you can help me I will love it. If you would like to see the lab that I am working from just le
2005-02-02 by Tiberius Ariton
put a capacitor to the output of 7805 to filter, otherwise it will oscillate a 10k pull up resistor for reset pin and an 100 nF capacitor conected between reset pin and ground to have a stable start up ----- Original Message ----- From: javierfiasche To: AVR-Chat@yahoogroups.com
2005-02-02 by Craig Maynard
If any of you folks are in Calgary or region, one of our talented members is giving a primer on Atmel programming at our facilities at the Calgary Aerospace museum. These three sessions ( 3 hours each ) are intended for the Western Canadian Robotics Society members, but membershi
2005-02-02 by Mike Perks
Paul , Certainly a faster chip will help you but not if your code is poorly written from a performance point of view. Before jumping ship, have you tried to isolate the problem more into what part of the code is slow? You indicated that you do a lot of floating point exponential
2005-02-02 by assault_wolf
I was about to suggest a Renesas myself, but a different angle. Renesas is running a Renesas contest based on their M16 microcontrollers (yes, they are CISC, I know...). One thing you can do right now is sign up for a demo of their hardware and compiler on a live computer at a re
2005-02-02 by Dave VanHorn
At 04:35 AM 2/2/2005, Paul Maddox wrote: >All, > > I'm currently using a MEGA16 at 16Mhz for a project, and I'm doing a lot >of floating point calculations (most exponential) and its getting a bit >slow, so I need something with a bit more 'umph'. >I know its kinda off topic, but
2005-02-02 by fredit@charter.net
Hello, I need to get a good C tutorial for the AVR. I have been programming for the bs2.. and would now like to move over to the AVR and C. Is there any good online resources to learn C for the AVR? thanks! Lee