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SwissMicros DM15 User manual

1SwissMicros • Serial connection
SwissMicros
Serial connection
You can connect your SwissMicros calculator to your
computer using an USB (mini B) cable. A terminal
emulation utility on the computer side is used to talk to
the calculator. Here we cover how to establish proper
serial connection between a SwissMicros calculator and a
computer. Note that OS X has a built-in terminal emulation
utility called « screen » which does the job very well.
Setting up serial connection in OS X
1. install Silicon Labs USB Driver (download link)
2. connect calculator to computer with USB cable
3. open Terminal
4. check presence of calculator’s serial port by listing it ;
to do this, enter the following in Terminal :
ls /dev/tty.S*
5. Terminal should return :
tty.SLAB_USBtoUART
6. congure the line and start monitoring serial data in
Terminal by entering :
screen tty.SLAB_USBtoUART 38400,8n1
7. the monitor window opens ; it’s completely blank
when it starts
Setting up serial connection in Windows
1. install Silicon Labs USB Driver (download link)
2. download PuTTY (download link)
3. connect calculator to computer with USB cable
4. open Device Manager and nd the line name given to
the calculator’s serial controller (here : « COM3 »)
5. start PuTTY, go to Session [1] and select Serial in the
panel on the right ; go to Connection [2] Serial [3]
and congure the serial line using these values :
•Serial line to connect to : name found at step 4
•Speed : 38400
the rest should be left to default (check image below)
6. click Open to start monitoring serial data
7. the monitor window opens ; it’s completely blank
when it starts
DM-15L DM-15
DM-16L DM-16
DM-41L DM-41
[1]
[2]
[3]
2SwissMicros • Save and restore state
Save and restore state
Here we cover how to save and restore the calculator
“state”, which includes the complete contents of what
HP called the “continuous memory” (stack, registers,
programs, etc).
The following requires that you have completed the steps
on page 1 “Serial connection”.
Saving calculator memory
1. with serial monitor window open, put calculator
in Serial Console mode : turn calculator off, then
press and hold the alpha key C , press ON briey,
and then release alpha key C
2. the monitor window returns (for the DM-41 model) :
DM41 turned on
DM41 ready
3. to dump contents of calculator memory, enter :
s
4. the memory dump appears under the prompt
5. this dump can be copied, pasted and saved to a text le
(including the short line at the top which describes the
calculator model) to be later restored to the calculator
Restoring calculator memory
1. with the monitor window open, ready the calculator
by entering :
l (lowercase «L»)
2. the command prompt changes to :
Waiting for data...
3. copy all characters from the memory dump, including
the short line at the top which describes the calculator
model
4. paste this in the monitor window *
5. monitor window outputs :
Read OK
and the command prompt returns to (for the DM-41
model) :
DM41>>
6. calculator memory is now restored
Set time and date
Here we cover how to set the internal clock and calendar
of the calculator. As a reminder, you can display the
internal clock and calendar on the calculator’s LCD display
so : turn calculator off, then press and hold the alpha
key A , press ON briey, and then release alpha key A .
The following requires that you have completed the steps
on page 1 “Serial connection”.
Getting calculator internal date and time
1. in the serial monitor window, enter :
t
2. the monitor window returns date, time and day of the
week in format :
YYYY-MM-DD HH:MM:SS DDD
Setting date and time
1. the command to set date and time is
ts
2. and the arguments to the command are formatted so :
ts <YYYYMMDD> <HHMMSS>
3. for instance for September 22 n d of 2016, 6:30 PM,
enter the following command :
ts 20160922 183000
4. date and time are now set
* PuTTY defaults the paste command to the right mouse button in
Windows ; check conguration in Window Selection
http://www.swissmicros.com
Guide v1.63 by Emy Amstein

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