Re: [Lcd4linux-devel] problems with CrystalFontz 634 v2.0 (CVS Version)

[Barry G. <mai...@pe...>]

Yeah, I think the startup delay should be a config option...

Also, I was looking at the little readme card that came with the display... 
apparently it can do things like display a factory logo or a custom logo on 
initialization, for 5 seconds.
It's supposed to reset itself if you send data during the 5 seconds, but 
mine doesn't.
Mine doesn't show a logo either.
There are apparently commands for re-programming some of these features in 
flashROM but I'd rather not mess with it, as I'm not sure what I'm doing, 
and it says if you overflow the buffer it'll hose the ROM.

Thanks,
Barry

At 04:36 AM 4/8/2004, you wrote:
>Hi Barry,
>
>>Hi, in 0.98, I had to add a 5.0second sleep to the CrystalFontz.c driver.
>>Otherwise the display never initializes correctly.
>>In the current CVS version, I've had to do it again.
>>Line 675:
>>   // Fixme: why such a large delay?
>>   usleep(350*1000);
>>sleep(5); // needed for 634 V2.0
>
>Right. I removed it, because I had no idea what this is for. But as 
>another user wrote, it works for him, and it works for mee, too. So 
>something must be wrong with your display....
>
>anyway, we should make this a config option, because 5 seconds are quite 
>long...
>
>bye, michael
>
>--
>Michael Reinelt                                   Tel: +43 676 3079941
>Geisslergasse 4                                   Fax: +43 316  692343
>A-8045 Graz, Austria                          e-mail: re...@eu...