EA 9777-2USB ELECTRONIC ASSEMBLY, EA 9777-2USB Datasheet - Page 19

• 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
the right to change specifications
without prior notice. Printing and
typographical
TOUICH ADJUSTMENT
The touch panel is perfectly adjusted and immediately ready for operation on delivery. As a result of
aging and wear, it may become necessary to readjust the touch panel:
1a. Send Command 'ESC A@' or
1b. Touch the touch panel at power-on and keep it depressed. After the message “touch adjustment
2. Follow the instructions for adjustment (press the 2 points upper left and lower right).
RESPONSE OF THE EA EDIPTFT32-A VIA SERIAL INTERFACE
The table below contains all response codes. Some response data will come automatically some
others on request. In addition to that with command 'ESC SB ...' user is able to transmit individual data
packages. All reponses are placed into the sendbuffer. With the smallprotocol command ’Request for
content of send buffer’ (see page10) the host can read out the sendbuffer. This can be done per polling,
alternativly pin 20 ’SBUF’ shows with LO-signal that data is ready to transmit.
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
ESC
?” appears, release the touch panel. Touch the touch panel again within a second for at least a
second.
Id
A
B
P
M
H
B
X
G
Y
D
W
V
U
J
I
num
num
num
num
21
1
2
1
1
5
2
2
2
2
3
L
errors
value
code
code
type
X-dots, Y-dots, Version, Touchinfo,
xx1
no
no
no
no
no
ch
ch
CRC-DF, CRC-DFsoll, DFlen
CRC-ROM, CRC-ROMsoll
LOval
value
value
value
value
projectname string...
code
xLO
reserved.
yy1
version string...
scaled ASCII string...
DF in KB,
data
HIval
xHI
(G16-FORMAT)
Response only when requested by command (placed into sendbuffer)
image data...
yLO
yHI
Responses without length specification (num)
automatic responses (placed into sendbuffer)
Responses of the EA eDIPTFT32-A
Remarks
Response from the analog touch panel when a key/switch is pressed. code = down or up code of the key/switch. It is only
transmitted if no touch macro with the number code is defined !
When a bargraph is set by touch, the current value of the bar no is transmitted. Transmission of the bar balue must be
activated (see the 'ESC A Q n1' command).
After the input port is changed, the new 8-bit value is transmitted. The automatic port scan must be activated. See the 'ES
A n1' command. It is only transmitted when there is no corresponding port/bit macro defined !
When a keystroke of the external matrix keyboard is detected, the newly pressed key number no is transmitted. Only
transmitted if no corresponding matrix macro is defined !
The following is transmitted in the case of a free touch area event: type=0 is release; type=1 is touch; type=2 is drag with
free touch area at the coordinates xx1, yy1
After the 'ESC B S n1' command, the current value of the bar with the number no is transmitted.
After the 'ESC A X' command, the current status (value=0 or 1) of the touch switch code is transmitted.
After the 'ESC A G nR' command, the code of the active touch switch in the radio group no is sent.
After the 'ESC Y R' command, the requested input port is transmitted. no=0: value is an 8-bit binary value of all 8 inputs.
no=1..8: value is 0 or 1 depending on the status of the input no
After the 'ESC V D ch' command, the requested voltage of channel ch=1..2 will be sent (value = 0..5000mV)
After the 'ESC V S ch' command, the requested voltage of channel ch=1..2 will be set as scaled ASCII characters (length
string = num-1).
After the 'ESC S V' command, the version of the edip firmware is transmitted as a string
e.g. "EA eDIPTFT43-A V1.0 Rev.A TP+"
After the 'ESC S J' command, the macro-projectname is transmitted. e.g. "init / delivery state"
after the 'ESC S I' command, internal information is sent by eDIP (16-Bit integer values LO-HI Byte)
Version: LO-Byte = version number Software; HI-Byte = Hardware revison letter touch
Touchinfo: LO-Byte = '-|+' X direction detected; HI-Byte = '-|+' Y direction detected
DFlen: number of user bytes in data flash memory (3 Bytes: LO-, MID- HI-Byte)
after the 'ESC UH....' command, a hard copy is sent in G16-format.
xx1,yy1 = Start coordinates of the hard copy (upper left corner)
EA eDIPTFT32-A
Page 19