LCD module

LCD module is a combination of connectors of Digital i/o module and two different LCD displays. Digital i/o module can provide two voltage level connections for the LCDs. alphanumeric LCD which is working on the 5 V level and graphical LCD which is working on the 3.3 V level. the back-light intensity of alphanumeric LCD is regulated with small potentiometer (LCD_BG) on the digital i/o board and graphical LCD back-light can be controlled by the software. Both LCD displays are connected to the port PA but only on at a time.

Connecting the module it is suggested to follow the order as described below. Before connecting any cable make sure that the power is removed from Controller board.

1. Connect the Digital i/o module with Controller module by using the ribbon cable.
2. Connect LCD module with Digital i/o module (only one at a time)
3. If needed connect the JTAG programmer with Controller module.
4. Connect the power supply with Controller module.

Connecting the alphanumeric LCD

Connecting the graphical LCD