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LCD
The LCD character display can be used in three different ways:
- Output ASCII characters over a simple LCD controller
- Output binary values in HEX representation (max. 128 bit)
- Access the display directly over the I²C interface
Each colour of the background light is controlled by a 16 bit PWM controller.
ASCII Interface
The integrated LCD controller must allways be accessed with 16 bit half words!
Registers
The Registers are read / write.
Display Positions
Binary Interface
The binary interface can be used to display binary values in HEX representation.
A maximum of 128 bits can be displayed.
Registers
The Registers are read / write.
Display Positions
I²C Interface
Background Light
Each colour of the background light is controlled by a 16 bit PWM generator.
The brightness can be regulated from 0x0000 (0% / off) to 0xffff (100%). To adapt the brightness curve to the human eye a adadption to a logarithmic scale has to be done manually.
Registers
The Registers are read / write.
Diagram
