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hi henri,

i get a new vfd NEC FC20X2JA-AB ,it Compatible with Noritake CU20026SCPB-T30A ,first i will test in serial interface not work

and i change try in pararell ,it work!! , i use circuit t23a from here ,overall timing not change ,and it can display character on screen , but not completely ,you can see that my picture



maybe control command such as "clear screen" or another commnad , can't work

i see in datasheet in T30a ,it's different form t23 in pin A0 ,if use write a command ,you will active A0

Can you add t30a in your noritake t-series or you can share this driver for i contribute to t30a

thank you

datasheet for t30a
http://www.maltepoeggel.de/html/vfd/fc20x1sa.pdf
http://www.maltepoeggel.de/html/vfd/fc20x2ja.pdf
form http://www.maltepoeggel.de/html/vfd/

i have read all in datasheet

clr command in t30a use 0x1C but in t23a use 0x1E,

and about in active high in a0 for command data ,you can set cursor position.