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Hello, i have a problem. I want to connect a LCD-Grafic-Display with a Hitachi HD61202 Controller to a 80c592. Is it possible? Know someone how to do this? Could someone give me a tip? Thanks Thomas
I am not familiar with the controller you use, but usually, it is not possible to connect the display to the databus and then do the rest with some programmable logic, since the timing of the LCDs are strange and slow. What you can do is connecting the databus and the control signals of the LCD to the I/O-Pins of the processor and then "simulate" the timing given in the datasheet. That usually works pretyt well, but keep in mind, that some LCD controller require to do things pretty slowly.
Thank you for your tip, but i tried this and can't get a result.
There's an App Note about this
Thanks, but i found only an app-note for a text-display. I'm using a grafic-display ( 64 * 128 dots)
Hi, I attached a 240x128 graphics LCD (Optrex) which uses a Toshiba controller. It is atttached to the address/data bus and requires 5 wait states (ST10F167 @ 20Mhz)during access. Because of it's pinout I had to use a polled ready/busy protocol but was quite successful. The best bet is to get the controller app notes from Hitachi and then pull a search for 'LCD' and HD61202 on the internet. I found enough tutorials and user hints to get the whole thing running in just a couple of hours. Best Regards Scott