Board: CC2650STK

The CC2650STK is an 'IoT kit' with 10 sensors, a fancy case, and a radio unit that is capable of irradiating IEEE802.15.4 and BLE (or SMART or whatever they call it now).

• Official homepage
• Another official homepage
• Platform <- CPU data sheet here

Use BOARD=cc2650stk for building RIOT for this platform.

Components

MCU	CC2650f128
Family	ARM Cortex-M3
Vendor	Texas Instruments
RAM	20KB
Flash	128KB
Frequency - Standby	31.26kHz, 32kHz or 32.768kHz
Frequency - Active / Idle	48MHz
RF core	ARM Cortex-M0 CPU, 4KB RAM
Timers	4x 32-bit
ADCs	1x 12-bit (8 channels)
UARTs	2
SPIs	2
I2C	1
I2S	1
Datasheet	Datasheet
Reference Manual	Reference Manual

Implementation Status

It's an ongoing process...

Module	Status
Cortex-M3	Partial support	Missing: energy saving features
UART	OK
LEDS	OK
Hardware buttons	OK
Timers	Unstable	See #5631
RF core	Work in progress	See here.

Toolchains

The arm-none-eabi toolchain works fine. You can get it here.

Programming and Debugging

You'll need debugging hardware. So far, the XDS110 debug probe has been tested. That bugger requires you to load a firmware onto it each time it powers up. The tool is contained in the Uniflash utility or the CodeComposer Studio from TI. Look for a folder called uscif in the installation directory, go to the folder xds110 therein, and follow the instructions in the ReadMe.txt.

The process is relying on proprietary TI softsoftware. If you're on Windows you can use the stuff linked to on the product websites.

On Linux, there's an application called Uniflash. Sadly, you'll have to install the whole IDE just to get the scripting interface :-[

No idea about MacOSX.

In order to flash the CC2650STK you need to plug the XDS110 probe through the JTAG and so-called "DevPack" connectors. Note that the back of the SensorTag case has a removable plastic cut-out: as a result the XDS110 can be used while the CC2650STK is still protected in its case. For the flashing process to be successful, the CC2650STK needs to be powered by a working battery.

Once your application code has compiled, you need to indicate the path to your UniFlash tool. You can do it in two ways:

1. Add export UNIFLASH_PATH = your_path to boards/cc2650stk/Makefile.include and then run make BOARD=cc2650stk flash

2. Use the command make BOARD=cc2650stk UNIFLASH_PATH=your_path flash to flash the board. If you're lazy you can create an alias to do it with the following command: alias cc2650stkmake='make BOARD=cc2650stk UNIFLASH_PATH=your_path flash'

In both cases you can add term at the end of the make command to enter the pyterm console directly. After the board has been flashed, it needs to be manually reset using the reset button on the XDS110 probe.