Help me with Characters Table, please!

egyptian3000 · Post by **egyptian3000** » March 21st, 2009, 9:32 am

I'm using LCD Smartie v.5.4 and LCD compatible with "HD44780 Controller", but on my LCD two Characters Table. Dafault using first table, but i need using second table. So tell me how to change Initializating LCD for using it. I'm sorry if my post have many errors, actualy i'm from Russia.

Post by **caesar** » March 22nd, 2009, 9:33 pm

Only the display's datasheet can mention that change.
Without that we can't help you out.

makarona · Post by **makarona** » March 23rd, 2009, 3:59 am

egiptian

i'm from Russia too! and i have problems too:) your LCD not MELT by the chance? i have problems with MELT, it's not show custom characters and such (everything else is good). don't know what to do. maybe anyone can help (circuit tested on Data Vision LCD - it's OK). well i attach the Datasheet, it's on russian, but codapages readable

and it says its 44780 compatible .. hope somebody help.. miss that cool perf bars

http://onlineproduction.ru/LCD/MT%9620S4M.rar

egyptian3000 · Post by **egyptian3000** » March 23rd, 2009, 6:39 pm

makarona wrote:egiptian

i'm from Russia too! and i have problems too:) your LCD not MELT by the chance? i have problems with MELT, it's not show custom characters and such (everything else is good). don't know what to do. maybe anyone can help (circuit tested on Data Vision LCD - it's OK). well i attach the Datasheet, it's on russian, but codapages readable and it says its 44780 compatible .. hope somebody help.. miss that cool perf bars

http://onlineproduction.ru/LCD/MT%9620S4M.rar

Hi! Yes, I'm usiong MELT MT20S4A

Actualy, I think i known HOW to do it, but I don't known WHERE to do it! )))) I can not find in HD44780.dll any HexValue in "DISPLAYDLL_Init" for to change it to MELT ((( "CODERS" - Help me, please

Post by **caesar** » March 25th, 2009, 8:04 am

Please explain how it works!

Anyway, you can use "search and replace" plugin to make use of those characters.

makarona · Post by **makarona** » March 25th, 2009, 10:44 am

I got "Mu" character instead of "black box" (all dots are on). It makes bars look completely bizare:) And if i use winamp spectrum plugin, i got all custom characters like "Mu" character. The MELT's character map in pdf looks not exactly as original 44780's pdf. Some symbols apear when it's clear place in original 44780.

egyptian3000 · Post by **egyptian3000** » March 25th, 2009, 6:44 pm

caesar, HD44780 have initializating values
$30, $30, $30, $38, $8, $01, $06 (or $07)
or the same...
MELT MT20S4A must have initialization values
$30, $30, $30, $3A, $08, $01, $06

I mean FunctionSet of HD44700 have format
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 1 N F * *

but FunctionSet of MT20S4A have format
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 N 1 0 F *

Post by **caesar** » March 26th, 2009, 6:39 am

I see, on page7 in the datasheet the is a line in the table called:

Function
Set
0 0 0 0 1 DL 1 0 P 0
Set bit
interface (DL = 0/1-4/8 bit)
character, and pages P
40 ms (google translated, hope it's right)

What value do you need for P? 0 or 1?

egyptian3000 · Post by **egyptian3000** » March 26th, 2009, 6:47 am

caesar, P = 1.
FunctionSet must have binary value: 0 0 0 0 1 1 1 0 1 0 ( 3A in hex )

egyptian3000 · Post by **egyptian3000** » April 3rd, 2009, 8:03 pm

HELLO!!! WHO CAN HELP ME???
Using any convertation PlugIn - it is not way out!

Post by **caesar** » April 4th, 2009, 12:10 am

Please try http://czi.uni.cc/LCDSmartie/melt.dll
and report back.
Hope it works.

egyptian3000 · Post by **egyptian3000** » April 12th, 2009, 3:42 pm

caesar, is melt.dll display driver? if "yes" - so it's not working ((( LCD show two black lines and no more...

Post by **caesar** » April 13th, 2009, 12:34 pm

ok, will look at it (don't know really how soon - very busy atm) and get back to you.

egyptian3000 · Post by **egyptian3000** » April 13th, 2009, 4:05 pm

Thanks. I'll be waiting...

egyptian3000 · Post by **egyptian3000** » April 13th, 2009, 6:15 pm

YES!!!
I DID IT!!!
My LCD show russian characters correcttly!!! I'm so Lucky))) If need I can give patched HD44780.DLL named as MT-20S4.dll but I don't know how put it on forum...

makarona · Post by **makarona** » April 13th, 2009, 6:47 pm

egyptian3000 wrote: YES!!!
I DID IT!!!
My LCD show russian characters correcttly!!! I'm so Lucky))) If need I can give patched HD44780.DLL named as MT-20S4.dll but I don't know how put it on forum...

egyptian3000

congrats! i use those MELT also, it's MT-20S4M, i have no problems with russian, but i have problems with custom chars. if your version is FTDI, lemme try it please:) pcpnetwork sobaka gmail.com

Post by **limbo** » April 13th, 2009, 9:47 pm

egyptian3000 wrote: YES!!!
If need I can give patched HD44780.DLL named as MT-20S4.dll but I don't know how put it on forum...

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