EA 9777-2USB ELECTRONIC ASSEMBLY, EA 9777-2USB Datasheet - Page 5

• Manufacturer Part Number: EA 9777-2USB
• Description: Display Development Tools Eval Board USB For Windows OS
• Manufacturer: ELECTRONIC ASSEMBLY

Specifications of EA 9777-2USB

• Product Category: Display Development Tools
• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: 3.2 in TFT Displays
• Interface Type: USB
• Operating Supply Voltage: 3.3 V, 5 V
• Description/function: Evaluation Board for USB
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 20 C
• Viewing Area: 3.2 in

ELECTRONIC ASSEMBLY reserves
EA eDIPTFT32-A
the right to change specifications
without prior notice. Printing and
typographical
errors
reserved.
Page 5
APPLICATION EXAMPLE „REAL“ RS-232 INTERFACE
The eDIP fits for direct
connection to a RS-232
interface with CMOS
level (VDD).
If you have an interface
with ±12V level, an
external levelshifter is
needed
application example
APPLICATION EXAMPLE: RS-485 INTERFACE
With an external converter (e.g.
SN75176), the EA eDIP can be
connected to a 2-wire RS-485
bus. Large distances of up to
1200
m
can
thus
be
implemented (remote display).
Several EA eDIP displays can
be operated on a single RS-485
bus by setting addresses.
application example
Addressing:
- Up to eight hardware addresses (0 to 7) can be set by means of Pins ADR0..ADR2
- The eDIP with the address 7 is selected and ready to receive after power-on.
- The eDIPS with the addresses 0 to 6 are deselcted after power-on
- Up to 246 further software addresses can be set by means of the ‘#KA adr’ command in the power-on macro (set eDIP
externally to address 0)
APPLICATION EXAMPLE: USB INTERFACE
With an external converter (e.g. FT232R) from FTDI the eDIP can be connected to an USB-Bus.
Virtual-COM-Port drivers are available for different Systems on the FTDI Homepage:
http://www.ftdichip.com/drivers/vcp.htm .
application example