From support2005 at dontronics.com Thu Jun 2 03:59:27 2005 From: support2005 at dontronics.com (Don McKenzie) Date: Thu Jun 2 04:00:24 2005 Subject: [Micro-VGA] uVGAloaderV1.1.zip By Nick Allen. Message-ID: <429EBC5F.4040202@dontronics.com> http://www.dontronics.com/micro-vga.html#demo Demo uVGAloaderV1.1.zip (6Meg) By Nick Allen. A demo pc application for loading and displaying images on the microVGA units. So far it supports the uVGA-256. -- Don McKenzie E-Mail Contact Page: http://www.e-dotcom.com/ecp.php?un=Dontronics RS-232 to VGA. Many resolutions http://www.dontronics.com/micro-vga.html USB to RS232 Converter that works http://www.dontronics.com/usb_232.html From dwerner at dpcpipe.com Thu Jun 9 17:25:56 2005 From: dwerner at dpcpipe.com (Dan Werner) Date: Thu Jun 9 17:19:29 2005 Subject: [Micro-VGA] Text Scrolling Message-ID: I have ordered the Micro VGA product, and was looking through the manual. My question is, Is there a good way to facilitate scrolling text? My first use of this will be on a micro with a command line interface and I will need to scroll the text up the screen. I realize that I could re-draw the entire screen each time I want to scroll, but it seems that there should be an easier way. Thanks, Dan Werner From aaknar at bigpond.net.au Fri Jun 10 04:33:12 2005 From: aaknar at bigpond.net.au (Atilla Aknar) Date: Fri Jun 10 04:29:35 2005 Subject: [Micro-VGA] Text Scrolling Message-ID: <4461522.1118392392824.JavaMail.imail@web05ps> Hi Dan, Unfortunately you'll have to redraw the whole screen as there is no special command built in to the uVGA to perform this function. Regards, Atilla ---- Dan Werner wrote: > I have ordered the Micro VGA product, and was looking through the > manual. > > My question is, Is there a good way to facilitate scrolling text? My > first use of this will be on a micro with a command line interface and I > will need to scroll the text up the screen. I realize that I could > re-draw the entire screen each time I want to scroll, but it seems that > there should be an easier way. Thanks, Dan Werner > > > > > > _______________________________________________ > Micro-VGA mailing list > Micro-VGA@dontronics.com > http://mail.dontronics.com/mailman/listinfo/micro-vga_dontronics.com > From support2005 at dontronics.com Thu Jun 30 17:12:15 2005 From: support2005 at dontronics.com (Don McKenzie) Date: Thu Jun 30 17:12:35 2005 Subject: [Micro-VGA] PNP Transistor Part Numbers in the Schematics Message-ID: <42C4602F.6080507@dontronics.com> dontronics.com moved servers in the last few days, and this message was lost. So I have reposted the Q&A for the archives It also tests the new server. Don... ============================================ Hi Vikas, Basically any general purpose PNP transistor should work. The BC857 is the SMD equivalent of the BC557. Try 2N/PN 3906 also. The uVGA inputs are TTL compatible so the 3.3V levels should be fine for its Rx input, however you need to make sure that your 3.3V micro inputs are 5V tolerant (most are). If not then try a 1K2, 2K2 or a 4K7 resistor in series between the Rx of your embedded micro and the Tx of the uVGA. Your micro should have protection diodes to 3.3V supply and a series resistor is needed to limit the current due to 5V - 3.3V differential. PS: If you're going to design the base board into your own application board it maybe worth looking at the 256 colour version which will be up on the website soon (I've also attached it on this email, hope it gets thru). All new generation cores now come with a 64/256 colour option. Regards, Atilla Aknar 4D Systems Pty. Ltd. -----Original Message----- From: Micro-VGA-bounces@dontronics.com [mailto:Micro-VGA-bounces@dontronics.com] On Behalf Of vikas@blhealthcare.com Sent: Wednesday, 29 June 2005 3:37 AM To: Micro-VGA@dontronics.com Subject: [Micro-VGA] PNP Transistor Part Numbers in the Schematics Hi, I have two queries, if anyone can answer regarding the hardware of the Micro VGA Base Board 1. What is the full Part No for the PNP Transistors Q2, Q4 and Q6 ( BC857) 2. We want an embedded processor to comminicate with the uVGA over the serial port. The embedded processor works on 3.3V typical. Is it ok to connect the Pins of the uP directly to uVGA or do we need a 3.3V to 5V shifter ? ( The uVGA document says it needs 0-5V TTL ) Best Regards Vikas Shukla -- Don McKenzie E-Mail Contact Page: http://www.e-dotcom.com/ecp.php?un=Dontronics RS-232 to VGA. Many resolutions http://www.dontronics.com/micro-vga.html USB to RS232 Converter that works http://www.dontronics.com/usb_232.html