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Optrex F-51852 LCD initialization

Started by raivo leini February 2, 2006
Hi ,
LCD is connected to Renesas M30626 as extended memory, unfortunately i can't
get it to display anything. Connection is probably right, as the LCD is
answering to "status read" and also fills some commands. I got voltage
converter  to run, but contrast regulator and bias voltages are not running.
Strange, that I have used LCDs with SID1565 and ST7565 controllers without
any problems, but now there is NJU6766 inside 51852. ( and yes, i know that
6766 require external resistors for contrast regulator).
Has someone suggestions how to correctly start-up this LCD ?

b. regards,
Raivo


On Thu, 2 Feb 2006 20:40:52 +0200, "raivo leini" <raivo.leini@neti.ee>
wrote:

I had the same problem and found that in addition to turn on the
display you must turn on the driver to get something on the display.
#define CONTROLLER_DRIVER_ON   0xE7    // Turns on the NJU6676 display
driver

>Hi , >LCD is connected to Renesas M30626 as extended memory, unfortunately i can't >get it to display anything. Connection is probably right, as the LCD is >answering to "status read" and also fills some commands. I got voltage >converter to run, but contrast regulator and bias voltages are not running. >Strange, that I have used LCDs with SID1565 and ST7565 controllers without >any problems, but now there is NJU6766 inside 51852. ( and yes, i know that >6766 require external resistors for contrast regulator). >Has someone suggestions how to correctly start-up this LCD ? > >b. regards, >Raivo >