+AD4- Does anyone get experience in using the Holtek HT1621 LCD controller?

I haven't used this one particularly, but I am struggling with LCD
controllers this week.  I hop you find a quick solution to your problem.
I'd be replacing the chip at this point.

1. What led you to pick the HT1621? Is is cheap? (Assuming it is, being from
Holtek)

2. How many segs/coms does it drive?

3. Is it a serial or parallel interface?

4. Did you find they had good support, good docs?

I've been using Samsung KS0035's, and they are troublesome.  Documentation
is brief and sketchy,  translated by chimpanzees, support is nonexistent,
but there are few alternatives.  I've been told they are the cheapest driver
available in the Far East, but that may be old information.

--Lawrence Lile
who says +ACI-LCD's are a pain in the neck+ACEAIg-

----- Original Message -----
From: +ACI-John Waters+ACI- +ADw-john+AF8-fm+AF8-waters+AEA-HOTMAIL.COM+AD4-
To: +ADw-PICLIST+AEA-MITVMA.MIT.EDU+AD4-
Sent: Tuesday, January 15, 2002 3:51 PM
Subject: +AFs-EE+AF0-: problem using HT1621 LCD controller


+AD4- Hi All,
+AD4-
+AD4- Does anyone get experience in using the Holtek HT1621 LCD controller? I
have
+AD4- a LCD module using the HT1621 as controller, but I can't make it work,
there
+AD4- is no oscillation across the OSCO and OSCI pins at all when the power is
on.
+AD4- Could someone suggest something that I can do to diagnose what's wrong
with
+AD4- the module?
+AD4-
+AD4- Thanks in advance+ACE-
+AD4-
+AD4- John
+AD4-
+AD4-
+AD4-
+AD4-
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