Maple Systems MAP450D - Manual (Page 30)

Control
Character
Decimal
Notation
Hexadecimal
Notation
BASIC
Command
Terminal Keyboard
Keypresses
ESC 27 1B CHR$(27) CTRL [
STX 2 02 CHR$(2) CTRL B
CR 13 0D CHR$(13) CTRL M
LF 10 0A CHR$(10) CTRL J
ETX 3 03 CHR$(3) CTRL C
Control Command Format
initiator commandletter commanddata terminator
initiator =
ESC
command letter = printable ASCII character a, b, c, d, e, f, g, k, m, o, p, r, t, u,
v, w, x, y, z, B, H, K, L, M, O, P, T, X, Y, Z, ?, {, }
command data = any data required by the specified command
terminator = command terminator
STX
or line terminator
CR
,
LF
,
CR/LF
, or
ETX
Command Response Format
commanddata lineterminator
command data = any data required by the specified command
line terminator =
CR
,
LF
,
CR/LF
, or
ETX
Configuration Control Commands
Set LCD Viewing Angle Command
ESC
a bias terminator
bias: 0 = 90º, 1 = 75º
Response: none
Description: Allows the host controller to control the viewing angle of the LCD.
Example: PRINT CHR(27); “a0”; CHR(2)
Save Configuration Parameters Command
ESC
b terminator
Response: none
Description: Saves the OIT’s current setup permanently into the Flash PROM.
The saved parameters become the defaults used at power-up.
Example: PRINT CHR(27); “b”; CHR(2)
Request Configuration Data Command
ESC
c terminator
Response: class version revision serial terminator
class: C = MAP450D
version: Two digits for the firmware version.
revision: Two digits for the firmware revision level.
serial: 0 = RS-232, 1 = RS-422/485, 2 = both active
Description: Returns six ASCII digits representing the OIT’s current product model,
version, revision, and serial interface type.
Example: PRINT CHR(27); “c”; CHR(2)
29 MAP450D Operation Manual
1010-0101, Rev. 00