3.2 KiB
Toolchain setup
Here are instructions for setting up the tools required to build the project. Tested on Ubuntu 22.04 LTS.
Gateware: icestorm toolchain
These steps are used to build and install the
icestorm toolchain (in
/usr/local
). Note that nextpnr replaces Arachne-PNR.
sudo apt install build-essential clang lld bison flex libreadline-dev \
gawk tcl-dev libffi-dev git mercurial graphviz \
xdot pkg-config python3 libftdi-dev \
python3-dev libboost-dev libeigen3-dev \
libboost-dev libboost-filesystem-dev \
libboost-thread-dev libboost-program-options-dev \
libboost-iostreams-dev cmake
git clone https://github.com/YosysHQ/icestorm
cd icestorm
make -j$(nproc)
sudo make install
cd ..
# Custom iceprog for the RPi 2040-based programmer (will be upstreamed).
git clone -b interfaces https://github.com/tillitis/icestorm tillitis--icestorm
cd tillitis--icestorm/iceprog
make
sudo make PROGRAM_PREFIX=tillitis- install
cd ../..
git clone https://github.com/YosysHQ/yosys
cd yosys
# Avoiding current issue with yosys & icebram, filed in:
# https://github.com/YosysHQ/yosys/issues/3478
git checkout 06ef3f264afaa3eaeab45cc0404d8006c15f02b1
make -j$(nproc)
sudo make install
cd ..
git clone https://github.com/YosysHQ/nextpnr
cd nextpnr
cmake -DARCH=ice40 -DCMAKE_INSTALL_PREFIX=/usr/local .
make -j$(nproc)
sudo make install
References:
Firmware: riscv toolchain
The Tillitis Key 1 implements a picorv32 soft core CPU, which is a RISC-V microcontroller with the M and C instructions (RV32IMC). You can read more about it.
The project uses the LLVM/Clang suite, where version 14 is the latest stable (as of writing). Usually the LLVM/Clang packages that are part of your distro will work, if not, there are installations instructions for "Install (stable branch)" at https://apt.llvm.org/ for Debian and Ubuntu.
References:
Optional
These tools are used for specific sub-components of the project, and are not required for general development
Kicad 6.0: Circuit board designs
The circuit board designs were all created in KiCad 6.0.
mta1-usb-v1-programmer: RPi 2040 toolchain
These tools are needed to build the programmer firmware for the mta1-usb-v1-programmer
TODO
- source code: https://github.com/Blinkinlabs/ice40_flasher
mta1-usb-v1: ch552 USB to Serial firmware
The USB to Serial firmware runs on the CH552 microcontroller, and provides a USB CDC profile which should work with the default drivers on all major operating systems.
TODO
References:
- source code: https://github.com/tillitis/tillitis-key1/tree/main/hw/boards/mta1-usb-v1/ch552_fw
- Compiler: SDCC
- Library: https://github.com/Blinkinlabs/ch554_sdcc
- Flashing tool: https://github.com/ole00/chprog