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2007-02-21 by castellani.riccardo@tiscali.it
I'm and I'd like doing some test with LCD display 4x20 with my STK500 board, for example to write characters. How can I link this display to STK500 ? Where can I find linking diagram ? Naviga e telefona senza limiti con Tiscali Scopri le promozioni Tiscali adsl: navighi e telefoni senza canone Telecom http://abbonati.tiscali.it/adsl/
2007-02-21 by John Samperi
At 06:07 PM 21/02/2007, you wrote: >How can I link this display to STK500 ? Where can I find linking >diagram ? It depend on which chip you intend to use and also how you will program it. For a Mega8/M48/M88 or M168 you can have a look at one of my circuits at the link below, it uses 4 bit mode for the LCD. http://homepages.chilli.net.au/~ampertronics/images/MTERM2%20diag.gif If you want to use say the Tiny2313 there is a project on AVRFreaks.net called my_lcd_backpak (I think). It is programmed in C using WINAVR and it uses 8 bit mode for the LCD. Buon divertimento :) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ********************************************************
2007-02-22 by Riccardo Castellani
I'm using Atmega8535 and Atmega8515L.
----- Original Message ----- From: John Samperi To: AVR-Chat@yahoogroups.com Sent: Wednesday, February 21, 2007 8:48 AM Subject: Re: [AVR-Chat] LCD 4 rows - At 06:07 PM 21/02/2007, you wrote: >How can I link this display to STK500 ? Where can I find linking >diagram ? It depend on which chip you intend to use and also how you will program it. For a Mega8/M48/M88 or M168 you can have a look at one of my circuits at the link below, it uses 4 bit mode for the LCD. http://homepages.chilli.net.au/~ampertronics/images/MTERM2%20diag.gif If you want to use say the Tiny2313 there is a project on AVRFreaks.net called my_lcd_backpak (I think). It is programmed in C using WINAVR and it uses 8 bit mode for the LCD. Buon divertimento :) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ******************************************************** [Non-text portions of this message have been removed]
2007-02-22 by John Samperi
At 05:20 PM 22/02/2007, you wrote: >I'm using Atmega8535 and Atmega8515L. Then you have 2 choices, 8 bit mode and 4 bit mode as you have lots of pins to play with. In 8 bit mode just wire 1 of the 8 bit port to the data pins of the lcd, then you need power, a contrast pot and 3 additional pins for the control of the LCD (RS,R/W and E). For 4 bit mode the diagram on my website will work and for 8 bit mode you will just need to wire the 8 bits of the I/O port to your lcd as well as the other pins. How are you planning to program your chip? If you use Codevision C compiler you already have a code template built in and don't have to do too much work, I think there is also a lcd driver with Bascom (basic). There are also lots of sample code for WINAVR GCC and should be able to get some code for assembler, there may be one on www.avrbeginners.net in fact you should be able to get all the info there. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ********************************************************
2007-05-15 by Cat C
Hi, What are the main differences between these two? Is it generally worth spending ~$100 more for the JTAGICE2? Thanks, Cat _________________________________________________________________ Windows Live Hotmail. Now with better security, storage and features. www.newhotmail.ca?icid=WLHMENCA149
2007-05-15 by John Samperi
At 01:54 AM 16/05/2007, you wrote: >What are the main differences between these two? The Dragon is for devices with 32K or less flash for debugging. It can also do HVPP like the STK500 as it has a socket which can be jumpered for any DIP package. Cost ~US$50.00 It should eventually be able to program all chips. >Is it generally worth spending ~$100 more for the JTAGICE2? JTAGICE2 can do all chips for debugging but no socket for HVPP. The price for this has been around ~US$300.00 (has dropped lately) So if you only need chips with max 32K then the Dragon is a good choice. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ******************************************************** -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.0/804 - Release Date: 14/05/2007 4:46 PM
2007-05-16 by Cat C
Thanks John, There is an offer now, either: STK500 + Dragon $50 STK500 + JTAGICE2 $150 I don't have either, and I'd like to be able to debug in circuit... Is the Dragon also an ICE? I don't know if/when I'll want to use a >32k chip... but how confident are you that the Dragon will eventually (and when) work with larger chips? Couldn't there be some limitation? Memory? Something? I'd like to save $100, but ideally I'd rather not be sorry later :-) Maybe I want too much :-D, but $50 doesn't need much justification when I'm only playing with it (hobby), while $150 needs 3 times more :-D ----Original Message Follows----
From: John Samperi <samperi@ampertronics.com.au> Reply-To: AVR-Chat@yahoogroups.com To: AVR-Chat@yahoogroups.com Subject: Re: [AVR-Chat] Dragon or JTAGICE2? Date: Wed, 16 May 2007 07:57:16 +1000 At 01:54 AM 16/05/2007, you wrote: >What are the main differences between these two? The Dragon is for devices with 32K or less flash for debugging. It can also do HVPP like the STK500 as it has a socket which can be jumpered for any DIP package. Cost ~US$50.00 It should eventually be able to program all chips. >Is it generally worth spending ~$100 more for the JTAGICE2? JTAGICE2 can do all chips for debugging but no socket for HVPP. The price for this has been around ~US$300.00 (has dropped lately) So if you only need chips with max 32K then the Dragon is a good choice. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ******************************************************** -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.0/804 - Release Date: 14/05/2007 4:46 PM Yahoo! Groups Links _________________________________________________________________ Windows Live Hotmail. Now with better security, storage and features. www.newhotmail.ca?icid=WLHMENCA149
2007-05-16 by John Samperi
At 12:22 PM 16/05/2007, you wrote: >There is an offer now, either: >STK500 + Dragon $50 >STK500 + JTAGICE2 $150 >Is the Dragon also an ICE? Yes, it will do DW or JTAG debugging for devices up to 32K. No plans to have it do any more than that even though it is supposed to program all devices eventually. The reason for the offers seems to be that there is a STK600 (~US$200.00??) rumored to be available later this year that MAY work like a JTAG2 but retaining the STK500 functionality. I have been using the Dragon for almost a year now and it pretty good for what you pay. If you only want to use devices up to 32K then the STK500 + Dragon is great. You may also be able to get a JTAG MK1 for about US40.00 and it will do larger but mature devices like the M64 and M128. It will not be improved any further for newer devices however. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: john@ampertronics.com.au Website http://www.ampertronics.com.au *Electronic Design * Custom Products * Contract Assembly ******************************************************** -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.1/805 - Release Date: 15/05/2007 10:47 AM