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2009-10-13 by dlc
I've searched, but my Google-foo is not up to the task. I know that there is a bootloader, or bootloader app-note from Atmel that describes a bootloader for the MEGA chips, I would think even the MEGA8535 that emulates the STK500 (AVR ISP) protocol. But I have failed. Can someone
2009-10-13 by stevec
there are many on avrfreaks.net - projects section. One that is easily setup for the old (OLD) mega8535 is BLIPS. It too is on avrfreaks.net. It includes a GUI based PC side program too. You'll need atmel's AVR studio (free). http://www.avrfreaks.net/index.php?module=Freaks%20Aca
2009-10-09 by STEVEN
Hi, I have developed a vb6 class for these devices, you could have a look at that. I am not sure how to post attachments here, send me your e-mail and i will send it to you, my e-mail is s.holder123@btinternet.com Regards --- In AVR-Chat@yahoogroups.com, jhfgkhg kgjljg wrote: > >
2009-10-09 by jhfgkhg kgjljg
I am working with FT232RL and AVR with D2xx drivers. Unable to read using FT_Read.... Devices are opening and able to Tx. But Rx using FT_read returns empty buffer.. any ideas using it with VB? [Non-text portions of this message have been removed]
2009-10-08 by granz_consult
I have just uploaded an Excel spreadsheet with the AVR Product Selector included and an AutoFilter applied to the data. The purpose of creating this file was so that when I needed to choose an AVR chip, I can load this file and then click on the small arrow in the lower-right cor
2009-10-08 by AVR-Chat@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the AVR-Chat group. File : /Atmel AVR Product Selector.xls Uploaded by : granz_consult Description : AVR Product Selector You can access this file at the URL: http://gro
2009-10-08 by granz_consult
Tim, Thanks for your input - this is for an Ultra-Low cost robot for use with kids in a club or homeschool environment. Part of the appeal of this is that the programming cable can be built for less than $5.00. $30.00 is not a lot of money, but when the 'bot itself with the progr
2009-10-07 by _wsw_
--- In AVR-Chat@yahoogroups.com, "Tim Mitchell" wrote: > > Yes, really I would recommend buying the Atmel AVR-ISP which is a USB > device costing about $30 / 25 euro (depends where you are in the world). > > Saves a lot of messing around and the danger of blowing up your PC. ...a
2009-10-07 by Cat C
Thanks Steven, That was the plan before I realized that I can have the pins changed by hardware, I think it's more repeatable. Anyway, maybe you missed my message that I found a way to set those pins hi. I don't know if PWM would be better, it seems more roundabout, I really can'
2009-10-07 by STEVEN
Hi Cat, Yep, just got the post about forceing a compare match, i would guess thats the proper way to do it anyway lol. Regards --- In AVR-Chat@yahoogroups.com, Cat C wrote: > > > Thanks Steven, > That was the plan before I realized that I can have the pins changed by hardware, I
2009-10-07 by Tim Mitchell
----Original Message---- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of andrew.mathison Sent: 07 October 2009 10:40 To: AVR-Chat@yahoogroups.com Subject: [AVR-Chat] Re: ISP Port Restictions > May I try and warn you that the resistors you are > conte
2009-10-07 by Tim Mitchell
----Original Message---- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of art3@granzeier.com Sent: 06 October 2009 21:02 To: AVR-Chat@yahoogroups.com Subject: [AVR-Chat] ISP Port Restictions > My questions are these: > > 1) Are there any restrictions
2009-10-07 by andrew.mathison
May I try and warn you that the resistors you are contemplating using, could allow more current than many PPorts can supply.... Please check on the web yourself, but generally speaking, you cannot rely on sourcing more than 2.5ma or sinking more than 24ma. In fact some cannot eve
2009-10-07 by STEVEN
hi. >One plan could be to set the port operation as normal (COMnA1/COMnB1/ COMnC1 - COMnA0/COMnB0/COMnC0) to 0, set the compare interrupt bit and write an interrupt handler on compare match, when the interrupt occurs, then set the ports as desired. There will be a degree of inter
2009-10-06 by Cat C
To answer my own question, I found a way, but is it the best/easiest? TCCR1A = 0b11110000; //Prepare so that next command sets OC1A/B HI (set on Output Compare) TCCR1C = 0b11000000; //Strobe - Forces an Output Compare for a/b so line above makes them HI > To: avr-chat@yahoogroups
2009-10-06 by art3@granzeier.com
I am designing a robot and used an ISP based on the Sample Electronics programmer cable. This ties printer port pins through 360 ohm resistors to the programming port pins on the AVR. The chip that I am using is the Tiny2313. I also have a FAN8200 H-Bridge chip with the direction
2009-10-06 by Cat C
Hello, I need to generate a pulse of some length and plan to use Timer 1 on a ATMega644p in normal mode (0). So I set TCCR1A = 0b10100000; //This sets PD5/4 do be OC1A/B, to be cleared on Compare-Match // |||||||| // ||||||--WGM11, WGM10 (00) Normal Mode. Also set WGM13:2 in TCCR
2009-10-06 by Антощенков Роман Викторович
Hello. Thanks for answers. For more external interrupts there are ATMega 48, 88, 168 in dip package. -- Best regards, Roman Antoshchenkov mailto:djantoxa@rambler.ru
2009-10-05 by wg0z@aol.com
try this ?!?: ?? load timer 0 count register?with 255 decimal ?? configure?timer 0 to increment with a falling(maybe rising)?edge on T0 pin ?? enable/use timer0 overflow interrupt ? you must reset count register to 255 decimal in your isr, ? and configure t0 pin as input in your
2009-10-05 by enkitec@gmail.com
David Kelly wrote: > On Mon, Oct 05, 2009 at 01:37:23PM -0300, enkitec@gmail.com wrote: > >> ?????????? ????? ?????????? wrote: >> >>> Hello. >>> >>> For example AtMega8535,AtMega16,AtMega32 have 3 interrupts from pins >>> (INT0, INT1, INT2). >>> Is there another Mega in Dip pack
2009-10-05 by David Kelly
On Mon, Oct 05, 2009 at 01:37:23PM -0300, enkitec@gmail.com wrote: > ?????????? ????? ?????????? wrote: > > Hello. > > > > For example AtMega8535,AtMega16,AtMega32 have 3 interrupts from pins > > (INT0, INT1, INT2). > > Is there another Mega in Dip package with 4 interrupts from
2009-10-05 by wg0z@aol.com
the mega32, probably the others aslo, can easily support more active-low interrupts. search datasheet for "pin change interrupt". you can, in effect, get an INT3 if you configure the PCINT correctly -----Original Message----- From: Антощенков Роман Викторович To: Tim Mitchell Sen
2009-10-05 by enkitec@gmail.com
?????????? ????? ?????????? wrote: > Hello. > > For example AtMega8535,AtMega16,AtMega32 have 3 interrupts from pins > (INT0, INT1, INT2). > Is there another Mega in Dip package with 4 interrupts from pins? > Possibly generate interrupt (Falling edge) from any pin? > > Another id
2009-10-05 by Антощенков Роман Викторович
Hello. For example AtMega8535,AtMega16,AtMega32 have 3 interrupts from pins (INT0, INT1, INT2). Is there another Mega in Dip package with 4 interrupts from pins? Possibly generate interrupt (Falling edge) from any pin? Another idea check pin state in loop but possibly lose signal
2009-10-05 by Tim Mitchell
----Original Message---- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of Dave McLaughlin Sent: 03 October 2009 17:50 To: AVR-Chat@yahoogroups.com Subject: RE: [AVR-Chat] ATMega16 + WH1602 > Is the second line OK? > > Have you adjusted the contrast in
2009-10-04 by blue_eagle74
Here is the video of the simple simon says game I made with all your help, thanks. Just for enjoyment. Not asking for improvements or comments. There are three speed levels and I am working on sound on/off fuction. This video only has 3 levels so I could show the win lights becau
2009-10-03 by Dave McLaughlin
Cool.. Well found. I always use JTAG for debugging so tend not to use those pins for the application if I can avoid it so didn't think about this. At least you can now get on with your project!! Cheers, Dave. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Beh
2009-10-03 by Антощенков Роман Викторович
Hello, Dave. > > Is the second line OK? > Have you adjusted the contrast input to the device? If this voltage is > wrong, the display will show as solid boxes. Another reason could be the > RESET is not working. Thanks Dave. Problem solved. Display connected to PORT shared with J
2009-10-03 by Dave McLaughlin
Is the second line OK? Have you adjusted the contrast input to the device? If this voltage is wrong, the display will show as solid boxes. Another reason could be the RESET is not working. Dave. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of ???????
2009-10-03 by Richard Reeves
> JTAGEN = ON > PORTC sharing with JTAG is it? Yes. > Disable JTAG? Yes, it's the first thing I'd do. The CV LCD routines work (well, they did when I used CV years ago). Richard
2009-10-03 by Антощенков Роман Викторович
Hello! Display WH1602 connected to PORTC ATMega16 and doesn't work. Top line filled with black boxes. I am using CodeVisionAVR 2.03 and AVR ISP programmer. Fuses: SPIEN = ON JTAGEN = ON PORTC sharing with JTAG is it? Disable JTAG? Any other solution? -- Best regards, Roman Antosh
2009-10-02 by blue_eagle74
I am sorry. I got excited and hurried back to it. I thank everyone that helped out. It is appreciated. Thanks, Brian --- In AVR-Chat@yahoogroups.com, Cat C wrote: > > > I don't think I saw any thanks from you to the people that helped you. > > Or... did I miss something? > > > To
2009-10-02 by Cat C
I don't think I saw any thanks from you to the people that helped you. Or... did I miss something? > To: AVR-Chat@yahoogroups.com > From: blue_eagle74@yahoo.com > Date: Thu, 1 Oct 2009 00:45:21 +0000 > Subject: [AVR-Chat] Re: tiny2313 pullups > > I found it. I had to change PORTB
2009-10-01 by blue_eagle74
Once I get everything done I will post a video of the simon says game I am making. Brian --- In AVR-Chat@yahoogroups.com, "blue_eagle74" wrote: > > I am trying to use internal pullups on the tiny2313 but only 2 pins are actually at a logic one. The are going to a pushbutton switc
2009-10-01 by enkitec@gmail.com
cboy2us wrote: > I am new to avr, but not micros. I would like to build my own avr programmer for USB, and was wondering if there is any open source programmer for avr that is decent (programs a fair range of avr). I have access to other programmers I can use to program the USB a
2009-10-01 by ayman@elkhashab.com
On Thu, Oct 01, 2009 at 04:41:21PM -0000, cboy2us wrote: > I am new to avr, but not micros. I would like to build my own avr programmer for USB, and was wondering if there is any open source programmer for avr that is decent (programs a fair range of avr). I have access to other
2009-10-01 by David Kelly
On Thu, Oct 01, 2009 at 04:41:21PM -0000, cboy2us wrote: > I am new to avr, but not micros. I would like to build my own avr > programmer for USB, and was wondering if there is any open source > programmer for avr that is decent (programs a fair range of avr). I > have access to
2009-10-01 by rsimonus
I am looking for Arduino project kits for my 13 years old son. He likes to learn electronics and microprocessor. Can someone tell me where is good place to find Arduino project kits? Reid
2009-10-01 by MoreOrLess
Try http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=83281&highlight=programmer also try www.smileymicros.com the AVRISPmkII is a commercial one from Atmel for about $35 www.avrfreaks.net is a great place to get info on AVRs Mike --- In AVR-Chat@yahoogroups.com,
2009-10-01 by cboy2us
I am new to avr, but not micros. I would like to build my own avr programmer for USB, and was wondering if there is any open source programmer for avr that is decent (programs a fair range of avr). I have access to other programmers I can use to program the USB avr, so that is no
2009-10-01 by Adeilton Oliveira
All, We finally released a test version of Babuino software for you to test and give us your feedback. We have new posts in our blog (http://babuinoproject.blogspot.com) including a Tutorial on how to upload the .hex file to Arduino. The .hex file is available in our discussion g
2009-09-30 by blue_eagle74
I found it. I had to change PORTB = 0xF4 to 0xFC. I was just looking too hard and kept missing it. Brian --- In AVR-Chat@yahoogroups.com, "Dave McLaughlin" wrote: > > Hi Brian, > > > > Looking at your code, you are using Port D as your input but I only see bit > 3 being set for t
2009-09-30 by enkitec@gmail.com
Dave McLaughlin wrote: > What about if you use a courier service such as DHL or UPS. I have found > that they are more efficient in handling this here and wonder if this would > be the same for you? > Yes, it is the same here. Sometimes I use them. Mark Jordan
2009-09-30 by Andrew Mathison
Well done John, you seem to have identified the area where the mistakes are being made. May I suggest that this is a common "beginner's" mistake as they have never learnt Hex and its relationship (as in this example that you have identified) in addressing port pins!!! I thought i
2009-09-30 by Dave McLaughlin
Hi Mark, And there was me thinking it was bad being here in Indonesia and having to pay around 27.5% duty and VAT. What about if you use a courier service such as DHL or UPS. I have found that they are more efficient in handling this here and wonder if this would be the same for
2009-09-30 by enkitec@gmail.com
Local laws. Any package arriving via Post Office have to pay 90% tax. Unless you do a lot of legal paperwork to show the aduana the correct tax you have to pay. I'm in Brasil. Mark blue_eagle74 wrote: > what is the import fee? why so much? > > Brian > > --- In AVR-Chat@yahoogroup
2009-09-30 by John Samperi
At 10:26 AM 30/09/2009, you wrote: > Any recommendations for a DIY AVR USB programmer? This may help. http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=83281&highlight=programmer Regards John Samperi ******************************************************** Ampertr
2009-09-30 by John Samperi
At 10:44 AM 30/09/2009, you wrote: >That is my question. No, that's OUR question. You said "I set DDRx to 0x00 and PORTx to 0xFF." But nowhere in your code you seem to be doing this. main() { PORTA = 0x7C; PORTB = 0xF4; PORTD = 0x04; DDRA = 0x03; DDRB = 0x04; DDRD = 0x03; So agai
2009-09-30 by Dave McLaughlin
Hi Brian, Looking at your code, you are using Port D as your input but I only see bit 3 being set for the weak pullup. (PORTD=0x04;) This would explain why you are only seeing 1 of them work. To enable the pullups on the pins you are using you need to use PORTD=0x3C; You did say
2009-09-30 by luke whitmore
I've successfully used http://code.google.com/p/mega-isp/ to program a bunch of AVR chips using an arduino and a breadboard. It works well - and you can even set fuses. I also wrote about it briefly here (http://ntsdt.net/2009/08/07/programming-an-atmega8-using-arduino/) Cheers L