EA 9777-2USB ELECTRONIC ASSEMBLY, EA 9777-2USB Datasheet - Page 12

• 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

EA eDIPTFT32-A
Page 12
TERMINAL MODE
When you switch the unit on, the cursor flashes in the
first line, indicating that the display is ready for
operation. All the incoming characters are displayed
in ASCII format on the terminal (exception:
CR,LF,FF,ESC,’#’). The prerequisite for this is a
working protocol frame or a deactivated protocol (see
pages 10 and 11).
Line breaks are automatic or can be executed by
means of the ‘LF’ character. If the last line is full, the
contents of the terminal scroll upward. The ‘FF’
character (page feed) deletes the terminal. The
character ‘#’ is used as an escape character and thus
cannot be displayed directly on the terminal. If the
character ‘#’ is to be output on the terminal, it must be
transmitted twice: ‘##’. The size of the terminal-
window can be set by command 'ESC TW'.
Attention: Graphic commands are able to draw inside
terminal window. For example 'ESC DL' will delete terminal window, too.
USING THE SERIAL INTERFACE
The operating unit can be programmed by means of various integrated commands. Each command
begins with ESCAPE followed by one or two command letters and then parameters.
There are two ways to transmit commands:
1. ASCII mode
- The ESC character corresponds to the character ‘#’ (hex: $23, dec: 35).
- The command letters come directly after the ‘#’ character.
- The parameters are transmitted as plain text (several ASCII characters) followed by a separating
- Strings (text) are written directly without quotation marks and concluded with CR (hex: $0D) or LF
2. Binär mode
- The escape character corresponds to the character ESC (hex: $1B, dec: 27).
- The command letters are transmitted directly.
- The coordinates xx and yy are transmitted as 16-bit binary values (first the LOW byte and then the
- All the other parameters are transmitted as 8-bit binary values (1 byte).
- Strings (text) are concluded with CR (hex: $0D) or LF (hex: $0A) or NUL (hex: $00).
No separating characters, such as spaces or commas, may be used in binary mode.
The commands require no final byte, such as a carriage return (apart from the string $00).
character (such as a comma ‘,’) - also after the last parameter e.g.: #GD0,0,479,271,
(hex: $0A).
HIGH byte).
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical
Terminal-Font 2: 8x16
errors
reserved.