Linux - Getting started with Texas Instruments CC3200 SimpleLink Launchpad IoT evaluation module

• CC3200 has a FT2232 FTDI chip with USB to JTAG & UART (dual endpoints)

• udev rules need to be added to enable FTDI chip to be visible in the file system

/etc/udev/rules.d/99-tiftdi.rules

$ cat /etc/udev/rules.d/99-tiftdi.rules
# For CC3200 Launchpad with FTDI Chip that TI put their codes in. ID = 0x0451, Product ID = 0xc32a

ATTRS{idVendor}=="0451", ATTRS{idProduct}=="c32a", MODE="0770", GROUP="dialout", RUN+="/sbin/modprobe ftdi-sio", RUN+="/bin/sh -c '/bin/echo 0451 c32a > /sys/bus/usb-serial/drivers/ftdi_sio/new_id'"

• Necessary kernel modules are usbserial and ftdi_sio. We need to initiate ftdi_sio kernel module manual every time we connect the device. RUN+="/sbin/modprobe ftdi-sio" in the above rules does this automatically.

• Though CCS studio is available for linux, arm-none-eabi-gcc toolchain can be used for compilation arm-none-eabi-gdb and openocd can be used for debugging.

• Configuring the build and installing procedure for openocd to support cc3200 is given at ​http://azug.minpet.unibas.ch/~lukas/bricol/ti_simplelink/CC3200-LaunchXL.html

• Uniflash a flashing tool provided by TI is available for Linux environment with both GUI and CLI. However, its is mentioned that it comes with some bugs as well. Procedure for using Uniflash GUI is given at ​http://processors.wiki.ti.com/index.php/CC31xx_%26_CC32xx_UniFlash

• energia, a opensource IDE for TI chips as like Arduino for Atmel chips. Energia can also be used as abstraction framework for other IDEs as well. Source: ​http://energia.nu/

• energia is the easiest way to develop the project as it provides the highest level of abstraction with simple API for every feature.

• Ideally, the MCU code should use the SimpleLink (TM) APIs pre-defined to access the Network Processor to configure the Wi-Fi. The documentation on Wi-Fi is detailed at ​http://www.multisilicon.com/_a/blog/a25365269~/index.html