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2011-08-07 by Xiaofan Chen
On Sun, Aug 7, 2011 at 6:49 PM, Xiaofan Chen wrote: > LinkedIn > ------------ > > I'd like to add you to my professional network on LinkedIn. > > - Xiaofan Oops, please ignore this... -- Xiaofan
2011-08-07 by Xiaofan Chen
LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Xiaofan Xiaofan Chen Staff Engineer at Rockwell Automation Singapore Confirm that you know Xiaofan Chen https://www.linkedin.com/e/-2vefip-gr1w3vho-3o/isd/3781282474/p4-CPX2E/ -- (c) 2011, LinkedI
2011-08-05 by warm38spl
Problem found! I cannot explain it, but it works 100%. I noticed that the numbers I use are equal or progressively smaller and all is OK, until I want to put in a bigger number. The previous number was about 6 uSec (192 cycles) and that was the time when it SHOULD have been 50 uS
2011-08-02 by warm38spl
End of one problem and start of another. The documentation (the version newer than the one I had) indicates that if PER is LESS THAN 0x8000, then CCA will contain 0x8000 for a Rising edge or 0x0000 for a Falling edge causing the input capture. The number I used was much less than
2011-07-28 by warm38spl
Yes, the compiler knows that I'm working with the 64A3 not the 16A4. I have not worked with the 16A4 only the 64A3. But then, everything else works just fine. The only problem the extra 0x8000 in the CCA. Why is it there? It's driving me nuts! (or, at least, more so than is norma
2011-07-27 by Cat C
Pulling at straws... -Do you have a 16A4 to try this on? -Did you tell the environment that you're using a 64A4? -Could it be a memory address? There's more in the 64A4; 0x8000 is 32K that was not available in the 16A4 but is in the 64A4... Good luck, Cat > > Before (on the 16A4)
2011-07-27 by warm38spl
--- In AVR-Chat@yahoogroups.com, "Don Kinzer" wrote: > > --- In AVR-Chat@yahoogroups.com, "warm38spl" wrote: > > TDC0.CNT = 0x0000; > > TCD0.CCA = 0x0000; > > TCD0.PER = 0x065F; > > TCD0.CTRLA = TC_CLKSEL_DIV1_gc; > > Either you didn't show us all of your initialization or you're
2011-07-27 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "warm38spl" wrote: > TDC0.CNT = 0x0000; > TCD0.CCA = 0x0000; > TCD0.PER = 0x065F; > TCD0.CTRLA = TC_CLKSEL_DIV1_gc; Either you didn't show us all of your initialization or you're missing something. You also need something like shown below (insert
2011-07-27 by warm38spl
I am using TDC0 to time an incoming event. At time 1 I set TDC0.CNT = 0x0000; TCD0.CCA = 0x0000; TCD0.PER = 0x065F; TCD0.CTRLA = TC_CLKSEL_DIV1_gc; EVENT0 is supposed to capture the CNT into CCA when PortB pin1 signall is Rising. I have added an overflow function (which is why "T
2011-07-23 by John Samperi
At 06:12 PM 19/07/2011, you wrote: >Now I know where to come to to get my social fix. Thanks for the >post on AVRfreaks John. So was this really sent on the 19th or 4 days ago??? Just got it. Regards John Samperi ******************************************************** Ampertroni
2011-07-23 by greggy
Don't forget, new members, like me and Larry, are moderated. --greg --- In AVR-Chat@yahoogroups.com, John Samperi wrote: > > At 06:12 PM 19/07/2011, you wrote: > >Now I know where to come to to get my social fix. Thanks for the > >post on AVRfreaks John. > > So was this really se
2011-07-23 by greggy
Hi Larry I don't think you're the only Freak who's joined up here since the crash. Seems like there is far less noise on this group :) Oh, and 'Hello everyone!" --greg --- In AVR-Chat@yahoogroups.com, "Larry Viesse" wrote: > > Now I know where to come to to get my social fix. Tha
2011-07-21 by mikewogden
Been working fine for the last two days Panic over Mike --- In AVR-Chat@yahoogroups.com, "bobgardner32839" wrote: > > I get the 'server maintenance' page. Seems like its takin a looong time. Better hurry up guys. I'm dyin down here! >
2011-07-19 by Larry Viesse
Now I know where to come to to get my social fix. Thanks for the post on AVRfreaks John. Larry Viesse - larryvc --- In AVR-Chat@yahoogroups.com, John Samperi wrote: > > At 05:25 PM 18/07/2011, you wrote: > >Must be something up. > > Probably the northern hemisphere's holiday seas
2011-07-18 by STEVEN HOLDER
Kasper, Looks like a capacitor on that pin is required then, no way round it. Regards --- On Mon, 18/7/11, kkpdk wrote: From: kkpdk Subject: [AVR-Chat] Re: ATMega16A - AREF oscillating To: AVR-Chat@yahoogroups.com Date: Monday, 18 July, 2011, 14:49 --- In AVR-Chat@yahoogroups.com
2011-07-18 by kkpdk
--- In AVR-Chat@yahoogroups.com, STEVEN HOLDER wrote: > The wave form at this pin is a little odd, it looks as though the waveform is being integrated by something switching the reference, possibly through the on board reference select fet and some parasitic capcitance that is '
2011-07-18 by STEVEN HOLDER
Kasper, You are correct data sheet sheet does state that the cap at aref is for improved noise performance although in the register settings (ADMUX) it does say that when selecting the avcc or internal reference that a cap should be at aref (Internal 2.56V Voltage Reference with
2011-07-18 by Mike Bronosky
Last night, about 8 hours ago, I tried to login. Got the login screen but entering name and PW, the I also got a blank screen. Now I can login. Obviously something wrong. Mike On Mon, Jul 18, 2011 at 3:32 AM, John Samperi wrote: > ** > > > At 05:25 PM 18/07/2011, you wrote: > >Mu
2011-07-18 by Tim Mitchell
Regarding Atmel's labelling and quality control- We designed a product using AT90USB1287 (has USB host and device). We assembled 100 units and the USB host feature did not work on them. After much fault finding, chasing of distributors and confusion we heard that Atmel had probab
2011-07-18 by STEVEN HOLDER
Hi, Does not look good does it, i assume you do not get this with the non 'a' version ? Is the AREF pin left unconnected ? i assume you are using the recommended filter circuit on the AVCC line and that there are no "switching" siganals that could couple into the circuit while th
2011-07-18 by John Samperi
At 07:05 PM 18/07/2011, you wrote: >95% of them can not run without capacitor on AREF. Atmel confirms >that they should be able to do so. But you have made provisions for the cap on your PCB and put it in as recommended right? :-) Regards John Samperi ****************************
2011-07-18 by kkpdk
--- In AVR-Chat@yahoogroups.com, STEVEN HOLDER wrote: > Does not look good does it, i assume you do not get this with the non 'a' version ? Yes, we have been using them since they were 'new'. > Is the AREF pin left unconnected? i assume you are using the recommended filter circui
2011-07-18 by John Samperi
At 05:25 PM 18/07/2011, you wrote: >Must be something up. Probably the northern hemisphere's holiday season, everything stops...literally!! May send an email to Eivind, see if he can shed more light. Regards John Samperi ******************************************************** Am
2011-07-18 by Dave McLaughlin
Must be something up. I just tried again and it is now not connecting and I am getting unavailable messages from Firefox. Before I got in and could navigate to some stuff but login just gave a white screen. Dave. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On
2011-07-18 by John Samperi
At 05:09 PM 18/07/2011, you wrote: >Not sure what is happening with your connection, but the site is working >from here. HUH?? I was getting the "site is temporarily down message" for 2 days, now I get a blank screen!! Regards John Samperi ****************************************
2011-07-18 by Dave McLaughlin
When I say it is working, I just tried now and get the front page but I can't log in. I just get a blank page. I can see some links though. Dave. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of John Samperi Sent: 18 July 2011 13:36 To: AVR-Chat@yahoo
2011-07-18 by Dave McLaughlin
Hi John Not sure what is happening with your connection, but the site is working from here. What error message are you getting? Dave. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of John Samperi Sent: 18 July 2011 13:36 To: AVR-Chat@yahoogroups.com S
2011-07-18 by kkpdk
For those interested in 'A' versions: I have stuffed ~8000 ATMega16 onto boards, or at least they were supposed to be ATMega16. In reality, even though the package says 16, they are 16A (the die shrink). Decapsulation confirms this, and Atmel confirms this. They were acquired thr
2011-07-18 by John Samperi
What the heck are they doing!!????? Down for 3 days now. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Website http://www.ampertron
2011-07-16 by John Samperi
They must be doing some wonderful updates to the site as it has been down for more than 24 hours......or perhaps it just crashed and no one can be bothered kicking it over again. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd.
2011-07-16 by bobgardner32839
I get the 'server maintenance' page. Seems like its takin a looong time. Better hurry up guys. I'm dyin down here!
2011-07-11 by John Samperi
At 04:00 PM 11/07/2011, you wrote: >I was focused on the framework and how that worked and didn't even >think to look at the datasheet for what I thought was a dev tool issue. Don't beat yourself too much Phil. :-) 25+ years ago I would have had the same question I guess. Since t
2011-07-11 by Philippe Habib
I may not have come across the way I intended. I was serious. I'm much happier with John's answer than if he had just told me. I was focused on the framework and how that worked and didn't even think to look at the datasheet for what I thought was a dev tool issue. I totally agre
2011-07-11 by M W
I recently spent a week trying to figure our how to use one legacy device from one company's datasheet, finally looked for another company's datasheet and found that THEY, unlike the first company, documented what they were doing in a way that "Clicked" in my brain. Mainly, they
2011-07-11 by Dave McLaughlin
Actually, I kind of agree with John on this. OK, so he hasn't told you the answer but he has indicated where to find the answer. By doing this you are likely to gain a better understanding of the SPI port. A lot of questions on the likes of this forum can be gained from reading t
2011-07-10 by Philippe Habib
Thank you. The only thing better than an answer telling me what I want to know is an answer telling me how to figure it out. -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of John Samperi Sent: Sunday, July 10, 2011 3:56 PM T
2011-07-10 by John Samperi
At 07:10 AM 11/07/2011, you wrote: >Does this mean that two 16 clocks will go out with the resulting >amount of data being written or read, or do they actually just clock >out 8 clocks per call? Look at the data sheet. How wide is SPDR? Regards John Samperi **********************
2011-07-10 by Philippe Habib
I'm using the spi functions in the avr32 framework, but since I can't get my code to load onto a real board yet I'm not able to look at the waveform and answer this for myself. I hope someone who know this can help me out. The spi_read and spi_write functions both take an unsigne
2011-07-08 by David Kelly
On Fri, Jul 08, 2011 at 07:28:30AM -0700, ho hoh wrote: > ???? ?????? ?????? > hi > your code is not right for this application. > you can follow this code to arrive to your idea: > if(UCSRA & 0x80) > { > data=getchar(); > } > code written for ATMEGA16. > http://up.vatandownload.
2011-07-08 by Philippe Habib
I helped a friend who's never programmed get going with Arduino. It was an easy way for him to get started and to do simple stuff. I did not see an obvious way to do ISRs with it, but did not spend much time looking. On Jul 6, 2011, at 11:14 PM, Jeff Blaine wrote: > Very interest
2011-07-08 by ho hoh
It is not true : rx_counter0 true is : rx_counter!=0 and this variable will be declared by codevision codewizard ________________________________ From: Ahmed Mostafa To: AVR-Chat@yahoogroups.com Sent: Friday, July 8, 2011 14:03:24 Subject: Re: [AVR-Chat] time of getchar and if i
2011-07-08 by Philippe Habib
I've been catching up on mail and saw this comment from John. I was starting a project with an AVR32 part and thought V5 would be the way to go. After spending nearly 3 hours on the download and install, I beat my head against the wall for a while longer trying to get my JTAGICE
2011-07-08 by ho hoh
به نام خدا hi your code is not right for this application. you can follow this code to arrive to your idea: if(UCSRA & 0x80) { data=getchar(); } code written for ATMEGA16. http://up.vatandownload.com/images/c2s9tmogjxqtmw3i2kw.jpg I saw you "read USART section of your AVR datashe
2011-07-08 by Dave McLaughlin
Sorry, I just noticed this was AVR chat so you may not be using Codevision. Which compiler are you using? If you are doing your own interrupt handler you can define any variable name you wish. Dave.. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of Ah
2011-07-08 by Ahmed Mostafa
and if i use interrupt pleause clarify to me how to define variable rx_counter0 in the interrupt routine On 7/8/11, Ahmed Mostafa wrote: > thanks for your help > actually i don't use interrupt > and if it didn't receive data , i want it to skip the getchar command > so can i use
2011-07-08 by Ahmed Mostafa
thanks for your help actually i don't use interrupt and if it didn't receive data , i want it to skip the getchar command so can i use if(getchar()) //instead of if(rx_counter0) { ch = getchar(); } On 7/8/11, Dave McLaughlin wrote: > Hi there, > > > > I am assuming you are using
2011-07-08 by Dave McLaughlin
Hi there, I am assuming you are using an interrupt driven serial port here? Best option by the way as it gets filled under interrupts so less likely to lose data. The following applies if this is turned on. You need to check the variable rx_counter0 (check your code for the corre
2011-07-07 by Ahmed Mostafa
can you write in English please ? On 7/7/11, ho hoh wrote: > به نام خدا > سلام > اگه فارسی داشته باش : > اگر با کدویژن برنامه می نویسی و از کد ویزارد استفاده می کنی از این تابع خارج > نمیشوی , مگر اینکه دیتایی دریافت کنی , حتی اگر از وقفه استفاده کرده باشی . > ولی چنانچه بخواهی ا
2011-07-07 by ho hoh
به نام خدا سلام اگه فارسی داشته باش : اگر با کدویژن برنامه می نویسی و از کد ویزارد استفاده می کنی از این تابع خارج نمیشوی , مگر اینکه دیتایی دریافت کنی , حتی اگر از وقفه استفاده کرده باشی . ولی چنانچه بخواهی این مشکل را برطرف کنی باید خودت دست به کار شوی و به کمک دیتا شیت و با تو
2011-07-07 by Ahmed Mostafa
command "getchar()" if it didn't receive serial data does it skips this command or what and if it skips it , how long does it take since this command "getchar()" is executed until it skips it ?