5
EA KIT129-6
DEFAULT SETTINGS
After power-on or a manual reset, the registers shown here are
set to a specific value.
Please note that all the settings can be overwritten by creating
a power-on macro (normal macro no. 0).
DIGITL INPUTS AND OUTPUTS
EA KIT129 provides 8 digital in- or outputs (5V
CMOS level, grounded). Definition for each line as an
In- or Output can be done at any time. Connection will
be done via J120 as a 2x5 double row pin header.
8 inputs
Factory-set all lines are set to input (internally pulled-up). However, the inputs will
be queried and evaluated directly via the serial interface ("ESC Y R"). Additionally
to that a voltage of >4V starts an internal port macro (if defined). When the 8 lines
are combined, up to 256 port macros can thus be addressed. Each of these port
macros can change the contents of the screen or switch an output, thus enabling
a wide range of control functions. To create the port macros you need a PC and
the EA DISK240
*)
floppy disk. You will find a more detailed description on page 6.
The automatic port query can be disabled by means of the "ESC Y A 0" command.
Note: The logic circuitry is designed for slow operations; in other words, more than
3 changes per second cannot be easily executed. If an input is left open, it is logical
high (internaly pulled-up via 100 kOhm).
8 outputs
Writing the command "ESC Y M anz" will redefine one or more line as an output. Upper lines will be
outputs and lower lines stay as inputs. Command "ESC Y M 2" for example
defines IO8 and IO7 as output lines and IO1~6 will stay as inputs.
Each (re-defined) line can be controlled individually using the "ESC Y W"
command. A maximum current of 10mA can be switched per line. Please
note that these 10mA are valid for L-level; H-level will drive some hundrets
of
µ
A only. For more power use an external transistor or MOSFET.
In- and Output J120
Pin Symbol
Function
Pin Symbol
Function
1
VDD
+5V Supply
2
IO 1
Port 1
3
IO 2
Port 2
4
IO 3
Port 3
5
IO 4
Port 4
6
IO 5
Port 5
7
IO 6
Port 6
8
IO 7
Port 7
9
IO 8
Port 8
10
GND
0V, Ground
Default settings
Register
Command
after
power-on / reset
Text mode
ESC L
set, black
Terminal font
ESC FT
Font 3, no zoom
Cursor
ESC QC
on
Flashing frequ.
ESC QZ
0.6 sec.
Graphics
mode
ESC V
set
Graphics font
ESC F
Font 3, no zoom
Last xy
ESC W
(0;0)
Bargraph 1/2
ESC B
undefined / unchanged
Selekt/deselekt
ESC K
selected
I/O 1..8
ESC Y
8 inputs
ATTENTION
handling precautions!
