Post by thread:how to operate LCD

Hi, I have one LCD. But I do not know how to program it. Because I have no data sheet. Trying to search in internet, but still get no result. Does anyone know about this ? Type : PCIM 201 2x16 Dot Matrix from Printed Circuits International, Inc. 13 pins only Is the 'protocol' same as Hitachi LCD controller (HD44780) "protocol"? Thanks a lot. Regards, Harry

Harry Febianto wrote: > > Hi, > I have one LCD. But I do not know how to program it. Because I have no > data sheet. Trying to search in internet, but still get no result. Does > anyone know about this ? > > Type : PCIM 201 2x16 Dot Matrix > from Printed Circuits International, Inc. > 13 pins only > > Is the 'protocol' same as Hitachi LCD controller (HD44780) "protocol"? > > Thanks a lot. > > Regards, > Harry almost certainly it's the Hitachi protocol. The Pic'n up the pace book has info. -- Anniepoo Need loco motors? http://www.idiom.com/~anniepoo/depot/motors.html

The problem is that the pin is not same as Hitachi's. They are VDD, GND, CS, MRD, MWR and 8 bit data. I don't know how to use data or instruction format. Regards, Harry Anne Ogborn wrote: {Quote hidden}> Harry Febianto wrote: > > > > Hi, > > I have one LCD. But I do not know how to program it. Because I have no > > data sheet. Trying to search in internet, but still get no result. Does > > anyone know about this ? > > > > Type : PCIM 201 2x16 Dot Matrix > > from Printed Circuits International, Inc. > > 13 pins only > > > > Is the 'protocol' same as Hitachi LCD controller (HD44780) "protocol"? > > > > Thanks a lot. > > > > Regards, > > Harry > > almost certainly it's the Hitachi protocol. The Pic'n up the pace > book has info. > > -- > Anniepoo > Need loco motors? > http://www.idiom.com/~anniepoo/depot/motors.html

Harry Febianto wrote: > The problem is that the pin is not same as Hitachi's. They are VDD, > GND, CS, MRD, MWR and 8 bit data. I don't know how to use data or > instruction format. Is that all the data you have on it and from where did you get that? OK, hook it up to a printer port, including the Strobe line to MRD, "fire it up" and send it ASCII characters one at a time, holding MWR low (unless what specs you have indicate it to be active low) and CS high. Having just acquired a NEC VFD display which understands ASCII (and I mean that, including control characters), I should not be surprised if that display did also. -- Cheers, Paul B.

Hi, In Hitachi, to write/read LCD, we just make RW pin to be low or high (just this pin only). In PCIM I have mentioned, there are 2 pins (I assume that : MWR and MRD) . It is not common. Any way, I want to test it. Thank you for your advise. Regards, Harry "Paul B. Webster VK2BZC" wrote: {Quote hidden}> Harry Febianto wrote: > > > The problem is that the pin is not same as Hitachi's. They are VDD, > > GND, CS, MRD, MWR and 8 bit data. I don't know how to use data or > > instruction format. > > Is that all the data you have on it and from where did you get that? > > OK, hook it up to a printer port, including the Strobe line to MRD, > "fire it up" and send it ASCII characters one at a time, holding MWR low > (unless what specs you have indicate it to be active low) and CS high. > > Having just acquired a NEC VFD display which understands ASCII (and I > mean that, including control characters), I should not be surprised if > that display did also. > -- > Cheers, > Paul B.