TFTP Gateway for NABU-PC using a Raspberry Pi Pico W
Binary releases are available at the right for ease of use.
NABU TFTP Gateway now supports .nabu segment files and will packetize them on the fly. Pre-packetized .pak files are suppored as well.
The first time you connect the Pico-W after flashing it will do a WiFi scan and step through the configuration. If you don't see any output in your terminal program, press return to re-scan for WiFi.
After configuration the gateway will be listening for communication from the NABU PC.
If you need to reboot or change the configuration you can use the USB-Serial interface to do this.
Press C to erase the config and reboot, restarting the wizard. Press R to reboot the Pico-W. Press X to test your UART configuration (sends 0x10 0xE4).
Multiple UART configs are now supported.
You can connect a RS422 transceiver to UART0 or UART1 on the Pico and select the pins when configuring.
RS422 transceivers are also supported on any two Pico pins using the PIO. You can select this with UART Type 3 in the configuration.
You can also use a Schmartboard Inc. RS-232 Module or similar board which has two RS232 level translator pairs with UART Type 2.
You'll need the pico-sdk and toolchain setup according to the instructions from there.
After cloning this repository, initialize the cmake:
$ cd nabu-tftp
$ mkdir build
$ cd build
$ PICO_SDK_PATH=<path where you cloned pico-sdk> cmake ..
This will take a few minutes...
You can now run make in the build folder to generate the nabutftp.uf2 file for flashing your Pico-W
$ make
A program is provided in the tools folder which will packetize .nabu files, though it is not strictly needed anymore.