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2012-03-08 by Dave
Is this by chance in the debugger or jtag ice? Tim Mitchell wrote: >OK so I've got this mega88 where some bits in registers R0-R15 appear to be permanently set... > >if I do > >ldi R16,0 >mov R1,R16 > >R1 has 1 in it!! > >Same code on a different mega - everything is OK. Avoid us
2012-03-08 by Tim Mitchell
It's not in any debugger... I found out what was going on by writing values to eeprom then reading it back using AVRISP. I fixed the second problem, it turned out to be a problem with the oscillator - it was not set to "full swing" and an LED power supply near the processor was c
2012-03-08 by Tim Mitchell
OK so I've got this mega88 where some bits in registers R0-R15 appear to be permanently set... if I do ldi R16,0 mov R1,R16 R1 has 1 in it!! Same code on a different mega - everything is OK. Avoid using R1 - everything is OK. Has anyone ever seen anything like that? Then I have a
2012-02-24 by hades
hi on addition to what other friends said , u can find a source code in www.atmel.com for both IRQ and polling method of handling UART have fun PS:I like field of your work please explain more about ur project and SIM508 548 module.
2012-02-18 by Mike Bronosky
Check out http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=45341&highlight=rs232 Also "Using the USART in in AVR-GCC" at http://www.fourwalledcubicle.com/AVRArticles.php Good luck, Mike -- Linux since March 2004 www.counter.li.org Registered Linux User: #482134 T
2012-02-18 by Dave McLaughlin
Good day, Hooking up a GSM/GPS to the AVR is simple. I assume all the hardware is done and works? Is this your own board design? What have you tried to do so far? If you Google a bit you can find sample code for serial comms. Without knowing what hardware you have or what your pr
2012-02-17 by Jim Wagner
What have you done, so far? Jim Wagner Oregon Research Electronics On Feb 16, 2012, at 9:16 AM, moonlight20082002 wrote: > Hi everyone! > I have a project of Vehicle Tracking System using GSM and GPS. Now i am stuck in interfacing GSM/GPS module(SIM508 548) with ATmega32. I mean
2012-02-16 by moonlight20082002
Hi everyone! I have a project of Vehicle Tracking System using GSM and GPS. Now i am stuck in interfacing GSM/GPS module(SIM508 548) with ATmega32. I mean if some one can help me for the steps and lil bit guidance for serial communication? Waiting for reply
2012-02-06 by bobgardner@aol.com
Studio5 will work just fine with a jtag3. Just use it as a programmer. Seems like you could program with avrdude and debug by inserting print statements. -----Original Message----- From: Chuck Hackett To: AVR-Chat Sent: Mon, Feb 6, 2012 4:50 pm Subject: RE: [AVR-Chat] Urgent help
2012-02-06 by Chuck Hackett
> From: John Samperi > >1) Upgrade to AVR Studio 5 > > That will only make things extremely WORSE. Thanks Graham, Steve & John, I figured I'd have to upgrade to the Dragon. I had added it to my Mouser shopping cart but waited for confirmation from here. Sigh ... my JTAG Ice-Cube
2012-02-06 by John Samperi
At 03:44 AM 7/02/2012, you wrote: >1) Upgrade to AVR Studio 5 That will only make things extremely WORSE. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-649
2012-02-06 by ecros_technology
--- In AVR-Chat@yahoogroups.com, "Chuck Hackett" wrote: > > ... AVRStudio 4 (4.18.716) ... does not > support debugging of the ATMega1284P via > JTAG ICE ... The AVR JTAG-ICE (Mark I) does not support the ATmega1284P. I recommend that you buy an AVR Dragon. They are less than $50
2012-02-06 by Steven Hodge
A Dragon should not break the bank account. Steve From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of Chuck Hackett Sent: Monday, February 06, 2012 8:44 AM To: AVR-Chat Subject: [AVR-Chat] Urgent help needed: JTAG Programming and Debugging of ATMega1284p
2012-02-06 by Chuck Hackett
Well, it turns out that I didn't do ALL my homework in preparing to switch from the ATMega32A to the ATMega1284P I have replaced the ATMega32A on ten boards with the ATMega1284P and recompiled the firmware but when I try to open the .elf file with AVRStudio 4 (4.18.716) to progra
2012-01-31 by Leon
Paul just told me that he has had lots of emails. He'll reply to them tomorrow. Leon
2012-01-31 by dpharristelusnet
Hi Chuck --- Alex let me know that you were interested in our stuff. The OpenLCB group is developing the Io board with Railstars as a development board that will be part of our OpenLCB / NMRAnet S-9.7 Developers and early adopters development kit, DevKit for short. As such, it wo
2012-01-31 by Leon Heller
Paul Curtis, of Rowley Associates, is getting rid of a lot of hardware, and asked me to help him. Items are 100% pristine, and most have never been turned on. AVR stuff is: Atmel - AVR ICE200 Atmel - AVR32 EVK1100 Kanda - STK300 Starter Kit All he wants is the shipping cost (Payp
2012-01-30 by Chuck Hackett
> From: Alex Shepherd > .... > Would something like the RailStars RS-IO board interest you? > > http://www.openlcb.org/trunk/prototypes/hardware/r-io/index.html > > It's a OpenLCB development/evaluation board that has a CAN interface and > is being developed as part of the OpenLC
2012-01-30 by Alex Shepherd
Hi Chuck, > My board is designed around the ATMega32A and I am about at its memory > limits (with optimization turned on) and I have more features to add > (naturally). I would like to upgrade to the largest compatible processor > that: > - 5v supply > - TQFN-44 package Would som
2012-01-30 by Chuck Hackett
> From: John Samperi > > At 11:01 AM 30/01/2012, you wrote: > >add significant functionality down the ROAD > > Surely you mean "down the TRACK"....... ;-) Of course .... unless the project gets derailed ;-) Cheers, Chuck Hackett "Good judgment comes from experience, experience co
2012-01-30 by Jim Wagner
Metaphors vary with culture. I will not presume which locals have "culture" and which do not. Jim Wagner Oregon Research Electronics On Jan 29, 2012, at 5:24 PM, John Samperi wrote: > At 11:01 AM 30/01/2012, you wrote: > >add significant functionality down the ROAD > > Surely you
2012-01-30 by John Samperi
At 11:01 AM 30/01/2012, you wrote: >add significant functionality down the ROAD Surely you mean "down the TRACK"....... ;-) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA
2012-01-30 by Clark Martin
On Jan 29, 2012, at 4:01 PM, Chuck Hackett wrote: > > I my early professional career (mid 70's) I can remember working for days to get one more byte of code space in an intelligent (?) terminal that had 4k of memory, 2k of which was dedicated to the display. We even did unthinkab
2012-01-30 by Chuck Hackett
> From: Clark Martin > .... > I hit the wall using the ATMega 32 (on a model railroading project), went > looking and chose the ATMEga1284P. Software and hardware wise it was a > drop in replacement. The only thing I had to do to use the new chip was > change the settings in my m
2012-01-30 by Chuck Hackett
> From: bobgardner@aol.com > > If you post the c source and state that " No one can reduce this program by > 10%", you will have a half dozen edits that reduce the program size by 10% > in a couple of hours. Sure, any good engineer loves a challenge :-) I my early professional ca
2012-01-29 by bobgardner@aol.com
If you post the c source and state that " No one can reduce this program by 10%", you will have a half dozen edits that reduce the program size by 10% in a couple of hours. -----Original Message----- From: Chuck Hackett To: AVR-Chat Sent: Sun, Jan 29, 2012 3:57 pm Subject: [AVR-C
2012-01-29 by Chuck Hackett
> From: John Samperi > > At 06:22 AM 30/01/2012, you wrote: > >is anyone interested in purchasing my extra ATMega32A's > > May want to say what package they are in. :-) Sorry John, I had mentioned it in my previous "compatibility" email but forgot it in this thread ... They are T
2012-01-29 by John Samperi
At 06:22 AM 30/01/2012, you wrote: >is anyone interested in purchasing my extra ATMega32A's May want to say what package they are in. :-) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2
2012-01-29 by Clark Martin
On Jan 29, 2012, at 11:09 AM, Chuck Hackett wrote: > My other regret Is that I violated a rule I should have known - use the > device with the largest reasonable amount of memory available to reduce the > chances of "hitting the wall" in development. Even though this was my first
2012-01-29 by Chuck Hackett
If I successfully convert from the ATMega32A to the ATMega1284 is anyone interested in purchasing my extra ATMega32A's (New, never installed, still in original packaging)? I think I would have about 20 available Mouser: $3.69(1), $3.57(10) Digikey: $5.25(1) Make me an offer, or,
2012-01-29 by Chuck Hackett
At the moment I'm doing very rudimentary error data recovery with the MCP2515 CAN controller. Can someone point me towards a web resource, app note, etc. that goes into more detail on more sophisticated bus error recovery methodology? Cheers, Chuck Hackett "Good judgment comes fr
2012-01-29 by Chuck Hackett
I designed a board for my railroad signaling project (outdoor, ride-on, 1/8th scale) around the ATMega32A and so far it has worked out well running my multi-node CAN network based system. One of the regrets I have is that I did not take the advice of those that recommended that I
2012-01-26 by David Kelly
On Jan 26, 2012, at 9:35 AM, Alex A wrote: > Atmel does have some Rad Hard processors good from -55C to 125C but these are 32-bit SPARC V8. There are also the FPGAs and ASICs for the military and avionics but those are probably a bit of overkill. A very common way to fly a fully-
2012-01-26 by Alex A
Atmel does have some Rad Hard processors good from -55C to 125C but these are 32-bit SPARC V8. There are also the FPGAs and ASICs for the military and avionics but those are probably a bit of overkill. --- In AVR-Chat@yahoogroups.com, "ki0bk" wrote: > > Thanks Tim, > That's what
2012-01-26 by Alex A
Actually, if you want to look for the automotive grade parts, look at something like part number ATmega168-15AZ. These are the rated more for the upper end of the scale rather than the lower end. When the data sheet says Absolute Maximum, these are the specs that the vendor will
2012-01-25 by Leon Heller
On 25/01/2012 18:47, Scott Stephens wrote: > I was wondering if I could do ISP and debug on a Samsung S3xxxx > (ARM926E) chip with my mk2 jtagice usb box. It probably won't be supported by any ARM development tools. Have a look at suitable tool chains and you will find out what J
2012-01-25 by Scott Stephens
I was wondering if I could do ISP and debug on a Samsung S3xxxx (ARM926E) chip with my mk2 jtagice usb box. Thanks
2012-01-25 by wagnerj@proaxis.com
Arrow has 1,730 of ATmega88-15AD. I would call them a "major distributor". However, the spec'd "Absolute Maximum" of -55C to +150C is not matched by the spec sheet data which only covers the range of -40C to +150C. Bummers! Jim Wagner Oregon Research Electronics > Rule #1 of prod
2012-01-25 by tim gilbert
Rule #1 of product development: don't design in parts that are hard to get! If the major distributors don't stock it; don't use it. Customers tend to get upset when their production runs get delayed because you used a non-stocked part. Free sample are nice, but I want to know tha
2012-01-25 by Mike Bronosky
Checking with a sales rep would be a great idea. http://www2.atmel.com/about/contact/default.aspx?contactType=Atmel+Sales+Office You can probably get some free samples to get you started. -- Linux since March 2004 www.counter.li.org Registered Linux User: #482134 Taking up Linux
2012-01-25 by wagnerj@proaxis.com
Then, I would check with your local rep! Find out, for sure, rather than guess. Jim Wagner > True, but where do you buy them? Digikey and Mouser only give you a -40C > option on the search windows and even Atmel's "Check Inventory" function > returns "no parts were found" (at lea
2012-01-25 by tim gilbert
True, but where do you buy them? Digikey and Mouser only give you a -40C option on the search windows and even Atmel's "Check Inventory" function returns "no parts were found" (at least on the few I've checked in the past). I'm sure if you want to buy 100K of them, Atmel would ac
2012-01-25 by tim gilbert
Jim, The typical military temperature specs can make it a challenge. We ran into this several years ago when designing a system that was to fly on the Predator drone. It had to operate -70C! We got the customer to promise that they'd never power up at less than -40C. That gave ou
2012-01-25 by wagnerj@proaxis.com
Jim - There are a number of AVRs that are "automotive grade". You will find them in Atmel's miserable web site in the 8-bit mcu section. THese have extended temperature specs, if I recall correctly. For example: http://www.atmel.com/dyn/products/devices.asp?category_id=163&family
2012-01-25 by tim gilbert
Jim, Do you need to meet FAA requirements of DO-160 and DO-178B? Would be happy to chat off-line. Regards, Tim Gilbert JEM Innovation Inc. 303-926-9053 (office) 303-437-4342 (cell) www.jeminnovation.com www.pdksolutions.com ----- Original Message ----- From: ki0bk To: AVR-Chat@ya
2012-01-25 by Cat C
I would start prototyping with the biggest one and move to production with the (next) smallest that has all I need.That would give you some flexibility when you need more.On the other hand, cost of chip may be irrelevant to cost of project so you could stick with biggest.Anyway,
2012-01-25 by David Kelly
On Jan 25, 2012, at 10:13 AM, wagnerj@proaxis.com wrote: > The fact that the application is aviation should have little or no bearing > on the device choice. Just like non-av applications, you select the device > based on the peripherals and (RAM & flash) memory space and need fo
2012-01-25 by wagnerj@proaxis.com
> I'm getting ready to start a project the will be used in an aircraft, we > are looking at using an atmega48/88/168 depending on code size and wanted > to know if anyone has done this before. If so, what mega avr did you use? > -Jim > > The fact that the application is aviation
2012-01-25 by Mike Bronosky
Depending on what you want the AVR to do, actually any AVR will work, will it do the work you want, don't know because I don't know what you want to do. -- Linux since March 2004 www.counter.li.org Registered Linux User: #482134 Taking up Linux Ubuntu and give-up the Windos habit
2012-01-25 by ki0bk
Thanks Tim, That's what I'm concerned about. In addition one of the requirements specifies the unit needs to work down to -45 degrees C and the atmel parts are only spec'd to -40C. I'll email you offline and report back to the group what I find for others to use. -Jim --- In AVR-