Digilent 410-225P-KIT Bedienungsanleitung PDF herunterladen

™

Revision: September 18, 2012

Note: This document applies to REV B of the board.

1300 Henley Court | Pullman, WA 99163 (509)

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Doc: 502-225 page 1 of 3

Overview

The PmodOLED2 features a parallel

controlled, 4-bit gray scale OLED display,

perfect for embedded applications requiring

complex visual output.

Features include:

 a 256x64 pixel WiseChip/Univision UG-

5664ASGGF01 OLED graphic display

panel

 5 3/8” x 1 3/8” display area

 8080 Parallel interface

 clock speeds of up to 10MHz

 internal display buffer

Functional Description

The PmodOLED2 uses a standard 12-pin

connector to display output on a 256x64 pixel

organic LED (OLED) panel. The graphic

display panel uses the Solomon Systech

SSD1322 display controller.

A parallel interface is used to configure the

display, as well as to send the bitmap data to

the device.

The PmodOLED2 displays the last image

drawn on the screen until it is powered down or

a new image is drawn to the display.

Refreshing and updating is handled internally.

Power Supply

The PmodOLED2 has two field-effect

transistors (FETs) that control the display’s two

power supplies. The VCI/VDDIO control

toggles the power to the logic of the display,

and the I/O pins, respectively. The VCC control

toggles the power to the OLED display itself.

These two pins have pull-up resistors that turn

off their respective power supplies when

they’re not being driven. These pins are

configured as outputs and driven high to turn

on the power supply.

The UG-5664 display requires a 15V supply.

Header J5 can be used to connect a 15V

supply directly to the 15V supply line. To use

this option, jumper JP1 must be coving “EXT”.

Alternatively, the PmodOLED2 is equipped

with a step-up DC-DC converter, and

therefore, the 15V supply can be generated

from the supply voltage coming from the

development board’s Pmod header. That

supply voltage should be set so that it is

drawing from the 5V rail. There should be a

jumper next to the Pmod header for selecting

between the 3.3V and the 5V supply rail.

The PmodOLED2 has a particular power-

on/power-off sequence that must be followed

to prolong the life of the display.

Power-on sequence:

1. Apply power to VCI.

2. Wait 300ms.

3. Send Display Off command.

4. Initialize display to desired operating mode.

5. Clear screen.

6. Apply power to VCC.

7. Delay 100ms.

8. Send Display On command.

1 2 3

Inhaltsverzeichnis

Seite 1 - Functional Description

PPmmooddOOLLEEDD22™™ RReeffeerreennccee MMaannuuaall Revision: September 18, 2012 Note: This document applies to REV B of the board. 1300 Henley C

Seite 2 - Interface

Seite 3 - PmodOLED2 Reference Manual

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