The MSP-EXP430G2 LaunchPad Experimenter Board User's Guide (Rev. C) in chapter 3.2 states:
The LaunchPad includes a pre-programmed MSP430G2553 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.php/MSP430_LaunchPad_(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?
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