Re: [AVR-Chat] Problem with the ATmega 16 Timer
2006-09-08 by David VanHorn
So many places to have problems.. How did you implement the delay? [Non-text portions of this message have been removed]
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Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by David VanHorn
Something else to be aware of, glitches on the data pins going to the shift registers don't matter at all, unless they are accompanied by a transition on the clock line. Those glitches may be intentional, driving something else. They may be intentional, just to confuse reverse en
Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by Dennis Clark
Ouch. PIC 16F parts do a read-modify-write on the IO port that a pin is on when you use the bsf/bcf instructions, so if you do a bsf PORTA,7 you'll read all of port A, set bit 7 and then write PORTA back out. This means that you could change any of the pins on PORTA depending upo
Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by Leon Heller
----- Original Message ----- From: "OWEN-A" To: Sent: Thursday, September 07, 2006 4:09 PM Subject: RE: [AVR-Chat] OT HC595 AND PIC GLITCHES > Using bsf and bcf PORT?,n > Thanking You, That could be the problem, if they follow one another (read-modify-write). Try putting NOPs bet
Re: [AVR-Chat] OT HC595 and PIC16f877 GLITCHES
2006-09-07 by Dennis Clark
Check your scope ground. I use all kinds of different embedded processors, PICs included, and I've used the F877 with 'HC595's too with great success. What is your code doing and are you constants switching the DDR from inputs/outputs? How is your power rail? If it is bouncing ar
Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by Roy E. Burrage
If it's someone else's design and also their code, considering that they have gone Tango Uniform in the mean time, you might be better off to just take the original specs and start all over from scratch Owen. If there are a number of boards out in the field, so be it. If yours is
RE: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by OWEN-A
Using bsf and bcf PORT?,n Thanking You, Owen. >I know this is perhaps a bit off topic but I have several boards with > PIC16F877 processors driving an HC595 shift register and the output > pins from the pic driving the HC595 are virtually all glitches. > > It is hard to pick up a
RE: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by OWEN-A
I have a couple questions: 1 - What frequency is the PIC running at? 20MHZ 2 - Are the DC input leads to the PIC and the 74HC595 adequately bypassed with capacitors? (I'd assume you did this properly). 100NF FOR EACH 3 - Are all ground leads on the PIC grounded? I just about went
Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by Leon Heller
----- Original Message ----- From: "oldhat_owen" To: Sent: Thursday, September 07, 2006 3:06 PM Subject: [AVR-Chat] OT HC595 AND PIC GLITCHES >I know this is perhaps a bit off topic but I have several boards with > PIC16F877 processors driving an HC595 shift register and the outp
Re: [AVR-Chat] OT HC595 AND PIC GLITCHES
2006-09-07 by Zack Widup
I have a couple questions: 1 - What frequency is the PIC running at? 2 - Are the DC input leads to the PIC and the 74HC595 adequately bypassed with capacitors? (I'd assume you did this properly). 3 - Are all ground leads on the PIC grounded? I just about went around the bend once
OT HC595 and PIC16f877 GLITCHES
2006-09-07 by OWEN-A
I know this is perhaps a bit off topic but I have several boards with PIC16F877 processors driving an HC595 shift register and the output pins from the pic driving the HC595 are virtually all glitches. It is hard to pick up a high or low as such on the logic analyser other output
OT HC595 AND PIC GLITCHES
2006-09-07 by oldhat_owen
I know this is perhaps a bit off topic but I have several boards with PIC16F877 processors driving an HC595 shift register and the output pins from the pic driving the HC595 are virtually all glitches. It is hard to pick up a high or low as such on the logic analyser other output
Problem with the ATmega 16 Timer
2006-09-07 by neosdomain4u
Hi, This is my first post here.So i hope im being relevant. I,m using the ATmega 16L chip on one of my battery powered robots.I am using the Pony 2000 serial programmer to download the codes on the chip.Here is the problem i'm facing: I'm using the on chip RC oscillator at 1MHz t
Re: [AVR-Chat] Kathy
2006-09-06 by Aaron
She posted on the [codevisionavr] group on 8/31/06. Aaron Dave VanHorn wrote: >Has anyone seen Kathy on chat or otherwise lately? > >
Re: [AVR-Chat] Kathy
2006-09-06 by John Samperi
At 03:46 AM 7/09/2006, you wrote: >Has anyone seen Kathy on chat or otherwise lately? I hope our "list Mom" is well, last time I heard from her was early June when she sent me a "present", perhaps she is very busy making lots of money :-) Regards John Samperi ********************
Kathy
2006-09-06 by Dave VanHorn
Has anyone seen Kathy on chat or otherwise lately?
Anybody have an old version of Eagle Layout?
2006-09-05 by Ryan
I'm looking for the v3.5 shareware or what have you. Cadsoft's website only goes back to v4.0. Anybody saved it to disk, or have a link? I've been searching for a week now... Thanks,
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Jim Wagner
Ned - I looked on the disk but was not sure what I was looking for. Hence, I didn't find anything! Jim On Tue, 05 Sep 2006 08:57:19 -0700 Ned Konz wrote: > Jim Wagner wrote: > > No developer tools pre-installed. Same results from > admin > > account. > > The devtools come with yo
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Ned Konz
Jim Wagner wrote: > No developer tools pre-installed. Same results from admin > account. The devtools come with your Mac OS/X distribution, so you shouldn't have to download them. One of the disks has XCode on it. You can use either DarwinPorts or Fink to install avr-gcc; I've go
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by dlc
Mine installed at /usr/local/avr/bin Don't forget to add this to your execution path (PATH) in your .bashrc file to get the command line to work where ever you are cd'd to without having to type the whole tedious path. DLC Bill Tuttle wrote: > Hmm, it should have installed it at:
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Jim Wagner
Thanks, Being a total zero at linux, it will take a bit to figure out how, though I know the basic need to do so from DOS, I hope. Gotta learn this stuff. Jim On Mon, 04 Sep 2006 23:38:14 -0600 dlc wrote: > Mine installed at /usr/local/avr/bin > > Don't forget to add this to your
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Jim Wagner
No developer tools pre-installed. Same results from admin account. Jim On Tue, 5 Sep 2006 00:45:13 -0400 Bill Tuttle wrote: > Hmm, it should have installed it at: > > /usr/local/bin/avr-gcc > > ---Bill > > Also, I just realized that I already had the developer > tools installed.
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Bill Tuttle
Hmm, it should have installed it at: /usr/local/bin/avr-gcc ---Bill Also, I just realized that I already had the developer tools installed. It may require that as well... On Sep 4, 2006, at 11:47 PM, Jim Wagner wrote: > Bill - > > From a user account, not admin, I get: > > James-
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Jim Wagner
Bill - From a user account, not admin, I get: James-Wagners-Computer:~ jim$ avr-gcc -bash: avr-gcc: command not found Will try from admin. Jim On Mon, 4 Sep 2006 20:34:08 -0400 Bill Tuttle wrote: > Hi Jim - > > Yeah, its strictly a command line system. Try typing > avr-gcc at the
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-05 by Bill Tuttle
Hi Jim - Yeah, its strictly a command line system. Try typing avr-gcc at the command line and it should come back and say "avr-gcc: no input files" Wow, I didn't think about how long it would be for dial-up. Yow! ---Bill Tuttle <> Gryphon's Moon On Sep 4, 2006, at 3:56 PM, Jim Wa
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Jim Wagner
Bill - Forgot to mention: OS10.3.9, iMac (G4) PowerPC. Jim On Mon, 04 Sep 2006 12:13:28 -0400 "Jim Wagner" wrote: > Ooops and another ooops - > > I finally noticed the link to a finished package. Its big > but downloading it anyway! > > Thanks, thanks, thanks > Jim > > On Sun, 3
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Jim Wagner
Bill - Did the 2hr 10 min download. Mounted the .dmg. Ran the installer. Cannot find it anywhere. Did a search, both as user and admin, for "gcc" and nothing found. The installer log appears just fine. Is this something I have to run from terminal command line? If so, can you des
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Jim Wagner
Ooops and another ooops - I finally noticed the link to a finished package. Its big but downloading it anyway! Thanks, thanks, thanks Jim On Sun, 3 Sep 2006 20:17:57 -0400 Bill Tuttle wrote: > Hi Jim - > > Don't have an answer for CrossOver or WIne as I haven't > upgraded to an >
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Jim Wagner
Bill - Ooops, spoke too soon. That is just a description of how to built an package. One of my problems is that it appears to require some huge downloads (on a dial-up line) for the X-Code stuff. I was hoping for a normal "application installer" that I could just download and ins
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Jim Wagner
Bill That is great news. I had not yet found a Mac installer for avr-gcc. Will try it. Jim On Sun, 3 Sep 2006 20:17:57 -0400 Bill Tuttle wrote: > Hi Jim - > > Don't have an answer for CrossOver or WIne as I haven't > upgraded to an > Intel Mac yet. However, we've been running the
Re: [AVR-Chat] Studio or WinAVR under CrossOver/wine?
2006-09-04 by Bill Tuttle
Hi Jim - Don't have an answer for CrossOver or WIne as I haven't upgraded to an Intel Mac yet. However, we've been running the avr-gcc package here with no problems. There's even an installer package available with it pre-built: http://www.digithink.com/embedded/AVR/OSXToolChain
Studio or WinAVR under CrossOver/wine?
2006-09-03 by Jim Wagner
Hello, AVR folks - Don't know if there are any Mac users on the list but AVRFreaks still seems to be down so I thought I'd ask here.... There is a new Mac app now in beta that lets Windows apps operate under a version of wine for the Mac linux distribution on an intel-based platf
Re: [AVR-Chat] Re: firmware update via wireless
2006-09-03 by anurag sharma
good --- AVR-Chat@yahoogroups.com wrote: > --- In AVR-Chat@yahoogroups.com, "magzky02" wrote: > > > > > > i wonder if firmware can be updated via wireless connection..i have a > > project that is connected to a rf module..it continously waits query > > and give its status..since
Re: [AVR-Chat] Re: firmware update via wireless
2006-09-03 by anurag sharma
good --- AVR-Chat@yahoogroups.com wrote: > --- In AVR-Chat@yahoogroups.com, "magzky02" wrote: > > > > > > i wonder if firmware can be updated via wireless connection..i have a > > project that is connected to a rf module..it continously waits query > > and give its status..since
Re: [AVR-Chat] Re: firmware update via wireless
2006-09-03 by anurag sharma
--- AVR-Chat@yahoogroups.com wrote: > --- In AVR-Chat@yahoogroups.com, "magzky02" wrote: > > > > > > i wonder if firmware can be updated via wireless connection..i have a > > project that is connected to a rf module..it continously waits query > > and give its status..since these
Re: firmware update via wireless
2006-09-01 by stevech11
--- In AVR-Chat@yahoogroups.com, "magzky02" wrote: > > > i wonder if firmware can be updated via wireless connection..i have a > project that is connected to a rf module..it continously waits query > and give its status..since these units are placed remotely...i want to > send fi
RE: [AVR-Chat] GP2D02 + ATmega32
2006-08-31 by Larry Barello
Don't use PWM output to drive the unit. Have you seen http://www.barello.net/Papers/GP2D02? The assembly code is complex since it multiplexes three sensors but at it's core it is simple, it does the clocking and shifting of data in s/w which is more than fast enough and easy to c
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Dennis Clark
Let me give you some pointers. Having done this before on PICs. 1) Your bootloader and basic network control need to be in write protected memory and need to be the first thing that is touched upon reset. 2) Set a flag in non-volatile memory denoting whether a good or bad firmwar
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Dennis Clark
Oh yeah, And you want to talk about _paranoid_ download protocols? :) DLC Zack Widup wrote: > I figure if we could completely reprogram the Galileo spacecraft as it > left our solar system, then we could reprogram anything from a distance. > :-) > > Zack > > On Thu, 31 Aug 2006,
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Dennis Clark
You'd better use a very robust error detection/correction packet scheme. Wireless is inherently unreliable. Also, you'll need to be sure that your device can deal with a corrupted download and still be able to be put into "update" mode. There is no reason it can't be done, but I
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by mago Umandam
awww... you guys scared me huh im thinking it may cause problem in the future... i'll need a senior engineer beside me to study this... thanks you guys for comments and suggestions mago David VanHorn wrote: On 8/31/06, Dennis Clark wrote: > > You'd better use a very robust error
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Zack Widup
I figure if we could completely reprogram the Galileo spacecraft as it left our solar system, then we could reprogram anything from a distance. :-) Zack On Thu, 31 Aug 2006, Dennis Clark wrote: > You'd better use a very robust error detection/correction packet scheme. > Wireless
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by David VanHorn
On 8/31/06, Dennis Clark wrote: > > You'd better use a very robust error detection/correction packet scheme. > Wireless is inherently unreliable. Also, you'll need to be sure that > your device can deal with a corrupted download and still be able to be > put into "update" mode. T
GP2D02 + ATmega32
2006-08-31 by katraven1
Hey guys, me again =P I've been spending the last couple of days trying to get one ex-Sharp infrared sensor to communicate wif my ATmega32. It's jst connected to the OC0 pin on PORTB generating a pwm to read a signal and the output of the sensor to one of the other IO pins, simil
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by mago Umandam
dear ralph yeah i've seen that program...i will play around with this and integrate with my project.. this is really a great help..it did the challenging part of the project..:) thank you mago Ralph Hilton wrote: On Thu, 31 Aug 2006 03:07:07 -0700 (PDT) you wrote: >thats great ra
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Ralph Hilton
On Thu, 31 Aug 2006 03:07:07 -0700 (PDT) you wrote: >thats great ralf.. > >may i ask the nature of the firmware update.. can i just send my new code placing the char ' Ralph Hilton wrote: On Thu, 31 Aug 2006 07:25:44 -0000 you wrote: > > > > >i wonder if firmware can be updated v
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by mago Umandam
thats great ralf.. may i ask the nature of the firmware update.. can i just send my new code placing the char ' wrote: On Thu, 31 Aug 2006 07:25:44 -0000 you wrote: > >i wonder if firmware can be updated via wireless connection..i have a >project that is connected to a rf module.
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Reza Naima
I've written a simple bootloader as well : http://reza.net/avr/ There are a lot of options. Easiest is to use a tiny MCU to handle the RF IO and to relay the data to the main MCU via the tx/rx pins and some other IO to force the bootloader to come up (so you can recover from a fa
Re: [AVR-Chat] firmware update via wireless
2006-08-31 by Ralph Hilton
On Thu, 31 Aug 2006 07:25:44 -0000 you wrote: > >i wonder if firmware can be updated via wireless connection..i have a >project that is connected to a rf module..it continously waits query >and give its status..since these units are placed remotely...i want to >send firmware upda
firmware update via wireless
2006-08-31 by magzky02
i wonder if firmware can be updated via wireless connection..i have a project that is connected to a rf module..it continously waits query and give its status..since these units are placed remotely...i want to send firmware updates via wireless too...the mega32 will update its fi