| ??? 07/19/08 02:16 Read: times |
#156834 - It depends ... Responding to: ???'s previous message |
THe 8275 is not a particularly "nice" CRTC, but if you simply want to display text on a VGA display, albeit in monochrome, which is the intended purpose of the 8275, the most common way is to present the monochrome output on the GREEN channel.
Keep in mind it's a 75-ohm channel, so you should use RG59 or equivalent (perhaps thinner) cable for the GREEN. You can, of course use the standard VGA cable. You'll have a good display if you drive and terminate it correctly. The typical 805x is probably not up to managing a full-color display, but if you have three color planes and a 3-color RAMDAC, you can use a fast MCU (SILABS, DALLAS DS89C4x0, etc, with some chance of success. 8-bitters can handle a 25x80 display just fine. RE |
| Topic | Author | Date |
| interfacing vga monitor to microntroller | 01/01/70 00:00 | |
| Images on VGA Monitor | 01/01/70 00:00 | |
| i have got intel 8275 crt controller | 01/01/70 00:00 | |
| look at this... | 01/01/70 00:00 | |
| have you seen this | 01/01/70 00:00 | |
| Expensive Chip... | 01/01/70 00:00 | |
| It depends ... | 01/01/70 00:00 | |
| http://www.pbjtech.com/ | 01/01/70 00:00 | |
| That is what the 8275 was intended to do! | 01/01/70 00:00 | |
This would suit you ?? | 01/01/70 00:00 |