Syntax:
ST7920WriteByte ( byte_variable )
Explanation:
This command write to the appropriate location as specified by the current XY position.
This is called by the GLCD common routines.
See the data sheet for more information.
Example usage:
...
SET GLCD_RS OFF
ST7920WriteByte( SysCalcPositionY ) ' <<< the ST7920WriteByte instruction
ST7920WriteByte( SysCalcPositionX )
' read data
GLCDDataTempWord = ST7920GLCDReadByte
GLCDDataTempWord = ST7920GLCDReadByte
GLCDDataTempWord = (GLCDDataTempWord*256) + ST7920GLCDReadByte
...Key line: ST7920WriteByte( SysCalcPositionY ) — with GLCD_RS set off, this writes an address byte (rather than display data) to select the Y position that the following ST7920GLCDReadByte calls will read from.
See Also:
- GLCD Overview — category overview
- ST7920GLCDReadByte — reading back a byte from the position set here
- ST7920WriteData — writing display data rather than an address byte
