LCD2USB plugin extension for KS0073 controller - resolved

[Votan]

Hi,

I have an LCD2USB converter by Till Harbaum and an 4x20 char display with KS0073 controller.
This doesn't run with the LCD2USB plugin. I get no Text. I can change the brightness.
I found some lines in the original AVR microcontroller firmware by Peter Fleury

Code: Select all

file lcd.c
#define KS0073_EXTENDED_FUNCTION_REGISTER_ON  0x24   /* |0|010|0100 4-bit mode extension-bit RE = 1 */
#define KS0073_EXTENDED_FUNCTION_REGISTER_OFF 0x20   /* |0|000|1001 4 lines mode */
#define KS0073_4LINES_MODE                    0x09   /* |0|001|0000 4-bit mode, extension-bit RE = 0 */


#if LCD_LINES==4
#if KS0073_4LINES_MODE
    if ( pos < LCD_START_LINE2 )
        addressCounter = LCD_START_LINE2;
    else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE3) )
        addressCounter = LCD_START_LINE3;
    else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE4) )
        addressCounter = LCD_START_LINE4;
    else
        addressCounter = LCD_START_LINE1;
#else
    if ( pos < LCD_START_LINE3 )
        addressCounter = LCD_START_LINE2;
    else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) )
        addressCounter = LCD_START_LINE3;
    else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) )
        addressCounter = LCD_START_LINE4;
    else
        addressCounter = LCD_START_LINE1;
#endif
#endif


#if KS0073_4LINES_MODE
    /* Display with KS0073 controller requires special commands for enabling 4 line mode */
    lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_ON);
    lcd_command(KS0073_4LINES_MODE);
    lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_OFF);
#else

Maybe is it possible to integrate this parameters as startup parameter in LCD2USB plugin.

Greetings, Votan

Edit: The Problem ist resolved. I have programed an extension in the LCD2USB plugin. Feedback is welcome

two features are added:
- external button support - code by henk http://forums.lcdsmartie.org/viewtopic. ... it=lcd2usb
- backlight brightness switch to zero, if LCD Smartie shut down

[tiggerlator]

I have the same 20x4 display and controller,i would be very grateful if you could post the plugin for me.Also,did you get it to work on vista x64?

Thank you

tiggerlator

[Votan]

I did add a download link in the first post.

Votan