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Old 12-28-2017, 10:14 PM   #1
vivitern
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Registered: Dec 2017
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Connect to the serial communication channel from linux using PuTTY


The MSP-EXP430G2 LaunchPad Experimenter Board User's Guide (Rev. C) in chapter 3.2 states:

The LaunchPad includes a pre-programmed MSP430G2553(datasheet:http://www.kynix.com/uploadfiles/pdf...0G2553IN20.pdf) device [...]

Press button P1.3 to switch the application to a temperature measurement mode. [...]

The collected temperature data is also communicated via back-channel UART through the USB emulation circuitry back to the PC. The transmitted values [...] can be displayed with any terminal application or the Temperature Sensor GUI available on the MSP430 LaunchPad wiki page http://processors.wiki.ti.com/index...._(MSP-EXP430G2). The serial communication port on the PC must be configured with 2400 bps, one stop bit, and no flow control to display the values correctly.
I've been trying to connect to the serial communication channel from linux using PuTTY (/dev/ttyACM0, 2400Bd, 8N1), but nothing happens.

Similar results with:

stty /dev/ttyACM0 2400
screen /dev/ttyACM0
I haven't seen the LaunchPad USB serial working yet, so I'm trying to figure out whether the problem is with my Linux install or with the LaunchPad.

How can I read the data from the LaunchPad demo in Linux?

EDIT1

I am on Ubuntu 12.10 64-bit

Linux 3.5.0-21-generic #32-Ubuntu SMP Tue Dec 11 18:51:59 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux


PACKAGE NAME INSTALLED VERSION
binutils-msp430 2.22~msp20120406-2
gcc-msp430 4.6.3~mspgcc-20120406-3
gdb-msp430 7.2a~mspgcc-20111205-1ubuntu1
msp430-libc 20120224-1
msp430mcu 20120406-2
mspdebug 0.19-1
srecord
libsrecord-dev
libgmp-dev
 
Old 12-29-2017, 12:37 PM   #2
_roman_
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Registered: Dec 2017
Location: _Austro_Bavaria_
Distribution: gentoo / linux mint
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I do not have schematics, and the hardware to look at.

Sometimes such boards also needs some steps to setup the communication. There is also the probability that nothing is sent from the board? Did you try with a scope?

How does the setup looks like? is there an usb-RS232C dongle involved?
 
  


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