Firmware for SiLabs Si1000 - Si102x/3x ISM radios
SiK is a collection of firmware and tools for radios based on the cheap, versatile SiLabs Si1000 SoC.
Paparazzi RSSI enable
Step by step instructions:
- Enable pprzlink support by changing
- If you want a specific sender ID assigned to your modem (so it shows up as a separate telemetry channel) change the value of
PPRZLINK_SENDER_IDhere (accepted values are 1-255). If you leave it as 0, then the ID of the connected UAV is used (default)
- Four types of pprzlink are supported:
- Pprzlink 1.0 with
- Secure Pprzlink 1.0 with
- Pprzlink 2.0 with
- Pprzlink 2.0 with
- Pprzlink 1.0 with
- Either change this makefile variable to the pprzlink version you desire to use, or compile with
PPRZLINK_VERSION=PPRZLINK_XXX make yyywhere
XXXstands for your Pprzlink version, and
yyystands for desired make command (build, install etc.)
- note that to make changes in eeprom, you have to do
- flash your modem (
rfd900pfor the RFD900+ modem,
hm_trpfor 3DR radios) e.g.
tools/uploader.py --resetparam --baudrate 57600 --port /dev/ttyUSB0 dst/radio~hm_trp.ihx
- now you will see
Branch Build Status
For user documentation please see this site:
Addition configuration guide can also be found here:
Currently, it supports the following boards:
- HopeRF HM-TRP
- HopeRF RF50-DEMO
Adding support for additional boards should not be difficult.
Currently the firmware components include:
- A bootloader with support for firmware upgrades over the serial interface.
- Radio firmware with support for parsing AT commands, storing parameters and FHSS/TDM functionality
See the user documentation above for a list of current firmware features
What You Will Need
- A Mac OS X or Linux system for building. Mac users will need the Developer Tools (Xcode) installed.
- At least two Si1000 - Si102x/3x - based radio devices (just one radio by itself is not very useful).
- A SiLabs USB debug adapter.
- SDCC, version 3.1.0 or later.
- Mono to build and run the GUI firmware updater.
- Python to run the command-line firmware updater.
Note that at this time, building on Windows systems is not supported. If someone wants to contribute and maintain the necessary pieces that would be wonderful.
make install in the Firmware directory. If all is well, this will produce a folder called
dst containing bootloader and firmware images.
If you want to fine-tune the build process,
make help will give you more details.
Building the SiK firmware generates bootloaders and firmware for each of the supported boards. Many boards are available tuned to specific frequencies, but have no way for software on the Si1000 to detect which frequency the board is configured for. In this case, the build will produce different versions of the bootloader for each board. It's important to select the correct bootloader version for your board if this is the case.
Flashing and Uploading
The SiLabs debug adapter can be used to flash both the bootloader and the firmware. Alternatively, once the bootloader has been flashed the updater application can be used to update the firmware (it's faster than flashing, too).
Firmware/tools/ec2upload script can be used to flash either a bootloader or firmware to an attached board with the SiLabs USB debug adapter. Further details on the connections required to flash a specific board should be found in the
Firmware/include/board_*.h header for the board in question.
To use the updater application, open the
SiKUploader/SikUploader.sln Mono solution file, build and run the application. Select the serial port connected to your radio and the appropriate firmware
.hex file for the firmware you wish to uploader. You will need to get the board into the bootloader; how you do this varies from board to board, but it will normally involve either holding down a button or pulling a pin high or low when the board is reset or powered on.
For the supported boards:
- HM-TRP: hold the CONFIG pin low when applying power to the board.
- RF50-DEMO: hold the ENTER button down and press RST.
- RFD900x: hold the BOOT/CTS pin low when applying power to the board.
The uploader application contains a bidirectional serial console that can be used for interacting with the radio firmware.
As an alternative to the Mono uploader, there is a Python-based command-line upload tool in
Supporting New Boards
Take a look at
Firmware/include/board_*.h for the details of what board support entails. It will help to have a schematic for your board, and in the worst case, you may need to experiment a little to determine a suitable value for EZRADIOPRO_OSC_CAP_VALUE. To set the frequency codes for your board, edit the corresponding
SiLabs have an extensive collection of documentation, application notes and sample code available online.
Please use the GitHub issues link at the top of the project page to report any problems with, or to make suggestions about SiK. I encourage you to fork the project and make whatever use you may of it.
What does SiK mean?
It should really be Sik, since 'K' is the SI abbreviation for Kelvin, and what I meant was 'k', i.e. 1000. Someday I might change it.