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Install the TTN Packet Forwarder on a FTDI environment

Note: Support of FTDI is experimental and not guaranteed, as Semtech has dropped FTDI support for the Hardware Abstraction Layer. macOS builds should only be used for development purposes.

Build procedure

Building the packet forwarder on a FTDI environment, with a USB connection with the concentrator, requires the libmpsse library.

Install libmpsse

  1. brew install libftdi or apt install libftdi
  2. wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/libmpsse/libmpsse-1.3.tar.gz
  3. tar -xvzf libmpsse-1.3.tar.gz
  4. cd libmpsse-1.3/src
  5. ./configure --disable-python && make && sudo make install

Download and build the packet forwarder

Make sure you have installed and configured your Go environment.

$ go get -u github.com/TheThingsNetwork/packet_forwarder
$ cd $GOPATH/src/github.com/TheThingsNetwork/packet_forwarder
$ make dev-deps
$ make deps
# If you are using Linux:
$ CFG_SPI=ftdi PLATFORM=imst_rpi make build
# If you are using macOS:
$ CFG_SPI=mac PLATFORM=imst_rpi make build

The build will then be available in the release/ folder.

macOS troubleshooting

On a macOS environment, you will need, at every reboot, to unload the native Apple Driver for FTDI devices: sudo kextunload -b com.apple.driver.AppleUSBFTDI. If you are unsure of the name of the driver, you can look for it with the command kextstat | grep FTDI.