SCOPE-FOOTSWITCH

STM32F401 based oscilloscope-footswitch interface using USBTMC.

Hardware is licensed CC-BY-SA-4.0 Software is GPLv3 for easy license compatibility with ChibiOS

Links:

• Hackaday Coverage
• Initial Announcement
• Rev.2 Batch
• Custom Panels

Tools:

Other versions may work, this is just what is currently tested

HW:

• KiCAD 5.0.1

SW:

• arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors 7-2018-q2-update) 7.3.1 20180622 (release) [ARM/embedded-7-branch revision 261907]
• GNU gdb (GNU Tools for ARM Embedded Processors 7-2018-q2-update) 8.1.0.20180315-git
• ChibiOS-RT with community USB Host framework
• libopencm3 and DFU code from BlackMagicProbe

This repo uses several submodules, make sure they are up to date. After checking out the kicad-library repo, make sure to cd to it and run make to generate the actual KiCAD libraries.

SW Build Process:

1. Make sure the arm-none-eabi toolchain is on your path: which arm-none-eabi-gcc
2. Pre-build the libopencm3 library: cd sw/ext/libopencm3 && make -j && cd ../../..
3. Build the bootloader: cd sw/bootloader && make -j && cd ../..
4. Build the main application: cd sw/scope-footswitch && make -j && cd ../..

SW Programming process:

1. Connect SWD debugger (e.g. blackmagicprobe) to hardware
2. Connect micro-usb from pc to hardware
3. cd sw/bootloader
4. ./flash.sh
5. Power cycle hardware, holding down the front panel button to force entry to the bootloader
6. cd ../scope-footswitch
7. ./dfu.sh