C't journal USB-LCD-Display project

[SexyBeast]

Hi,

reading the new C't journal (4/2006) I found the new hadware project, which is mainly a LCD connected to USB to display certain data, such as Motherboard temperatures or even Winamp mp3 title information etc.

The main part is a IOWarrior chip that both handles USB, display and even an infrared sensor.

Thing is, that chip needs one second to fully redraw the (128x64) LCD display, which is a very long time to my mind (it's 2006, not 1986  ;) ). Not that I really need it to be faster, but I believe this can be done better.

So my question is: how long would your driver take to completely redraw a 128x64 display, Thorsten?

thank you,

regards, SB

[MMorph]

Not my call, but I'll reply to this anyway :P  We are using Winstar's 240*128 LCD modules equipped with T6963C at work. We can show values etc from the PC on device's display and the update times are about 10-15 milliseconds (not full screen though), where most of the lag comes from the IIC communication (the inner communication of the device). It's not even the T6963 that is slowind down the update speed - the bottle neck for speed would be the crystals of the display not changing rapidly enough!

So this just for an example out from MBHP, maybe the design of IOWarrior is poor (haven't read the specs). Btw, TK have done benchmarking on different LCD's in past, maybe this reveals something about performance?: http://www.midibox.org/forum/index.php?topic=2169.0

Plus we never should forget that if big part of the "intelligence" of the device lays in windows application (is this where the controlling of the lcd module is being done?), it never can be too fast - nor precise..  ::)