7.1
Testing the Commands
It is possible to communicate with the CTR-201 hardware using a terminal emulator program. Under Linux,
communication was established with the CTR-201 software using the
Cutecom
terminal emulator.
Settings for the emulator:
Device
/dev/ttyUSB0
Baud rate
115200
Data bits
8
Stop bits
1
Parity
none
Handshake
none
Open for
Reading, Writing
7.2
Command List
i
Identify Sends identification message
eg: *Syscomp Curve Tracer V1.6
E
Write to EEPROM
e n
Read from EEPROM address n
D
set the drain/collector voltage, 12 bit value between 0 and 4096
eg: D 386
see Note.
S
set the source/emitter voltage, 12 bit value between 0 and 4096
eg: S 404
see Note.
B
set the upper base voltage
eg: B 348
12 bit value between 0 and 4096
Sets the ’source’ output current at the Base terminal. See note.
b
set lower base voltage
eg: b 0
12 bit value between 0 and 4096
Sets the ’sink’ output current at the Base terminal. See note.
P
base driver high current set point
v
set Base drive mode to ’voltage’
c
set Base drive mode to ’current’
r
select low range (0 to 1mA) collector current sensing resistor
R
select high range (0 to 1A) collector current sensing resistor
+
select positive collector current polarity (current out of terminal)
-
select negative collector current polarity (current into terminal)
A
read the 16 bit A/D converter channel 0 (Base Voltage).
a
read the 16 bit A/D converter channel 1 (Collector Current).
T
read the heatsink temperature
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