LCDproc development and user support list

Text archives Help


[Lcdproc] hd44780 no output - partial success


Chronological Thread 
  • From: peter AT legio.mine.nu (Peter Andersson)
  • Subject: [Lcdproc] hd44780 no output - partial success
  • Date: Tue Mar 21 00:53:01 2006

I spent the evening trying to figure out how to get the lcd started and i
finally get some output from lcdproc. It turns out i have to use EPP/ECP
1.7 DMA 1 to get the lcd working.
I'm having some problems with the updates though. The lcd never gets
cleared and old text from old screens never disappears. Sometimes only
half of the characters gets displayed (usually the ones on the right side
of the lcd). What i mean is that character 1-10 doesn't get updated but
character 11-20 do.
Also writing the text to the lcd is quite slow. You can see the text
getting written from left to right.

Does anyone have any ideas?

Thanks

/Peter

Some info

Kernel: 2.6.15.4
Modules: parport, parport_pc and ppdev loaded
lcdproc version: 0.4.5
Wiring: winamp
Configuration:

[HD44780]
Port=0x278
ConnectionType=winamp
Keypad=no
Backlight=no
Size=20x4
DelayMult=1 (tried 2 (gives no output), with 4 (no improvements))
DelayBus=true (with this set to false i get no lcd output)







Archive powered by MHonArc 2.6.18.

Top of page