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problems with t6963c init http://forum.lcdinfo.com/viewtopic.php?f=9&t=1264	Page 1 of 1

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Author:	douce [ Mon Jul 11, 2005 18:38 ]
Post subject:	problems with t6963c init
Hello, I'm new in this forum and I have a problem with the inicialitzacion of a graphic lcd (powertip 128x64). The code that I use follows the instructions that toshiba says in his datasheet (the datasheet of the controller). This is what i've done: INIT_LCD BSF PORTD,RST BSF PORTD,LCD_WR BSF PORTD,LCD_RD BSF PORTD,CD BCF PORTD,RST MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 BSF PORTD,RST BCF PORTD,CD;text home addres set BCF PORTD,LCD_WR MOVLW 0x00 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,LCD_WR MOVLW 0x00 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x42 MOVWF PORTB BSF PORTD,LCD_WR BCF PORTD,CD MOVLW 0xff CALL X_DELAY500 BCF PORTD,CD;text area set command BCF PORTD,LCD_WR MOVLW 0x10 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,LCD_WR MOVLW 0x00 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x43 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,CD;ADDRES POINTER SET COMMAND BCF PORTD,LCD_WR MOVLW 0x00 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,LCD_WR MOVLW 0x08 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x40 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,CD;SET TEXT AREA SET BCF PORTD,LCD_WR MOVLW 0x10 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,LCD_WR MOVLW 0x00 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x41 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD;mode set BCF PORTD,LCD_WR MOVLW 0x80 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x9E MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 BCF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x23 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,LCD_WR MOVLW 0x01 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x24 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 BCF PORTD,CD BCF PORTD,LCD_WR MOVLW 0x21 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 MOVLW 0xff CALL X_DELAY500 BSF PORTD,CD BCF PORTD,LCD_WR MOVLW 0xC0 MOVWF PORTB BSF PORTD,LCD_WR MOVLW 0xff CALL X_DELAY500 RETURN I use a pic 16f877. In the display only appears a line, and then disappears. Somebody can help me? Thank you

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