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AT-VFD

Goal: Controlling a VFD with an Atmel microcontroller
Compatible hardware: Princeton PT6302, OKI ML9208 (note that in naming the PT6302 datasheeet is followed)
Project is work in progress, breaing changes might come in the future

Using the driver library

Modify PT6302.h

  • Re-define the macro DISPLAY_DIGITS to the number of digits on your VFD
  • replace the pins in enum pins with th pins you have wired to the given controller interface pins

Include the PT6302.h in your application and use the functions to display whatever you want.

Building

Use either GNU make or CMake whichever you're familiar with.

Dependencies

The project uses avr-libc as well as avr-gcc, please install the packages neccesary. For building you need either GNU make or CMake. If you're using CLion, it should automatically pick up on CMakeLists.txt, but you still need to modify it to your hardware.

GNU make

Modify Makefile:

  • Change MCU to your target microcontroller
  • Change F_CPU to the frequency of your microcontroller's clock source
  • In CFLAGS make sure that the path after I is where you have your avr c libraries
  • TARGET should be the project name (or keep it as is, it doesn't matter)
  • In SRCS replace main with your application's c and header files
  • Change the avrdude command in flash to the device and port you're using for downloading the firmware

Then in the project directory run

make && make flash

to compile and download firmware.

CMake

Modify CMakeLists.txt:

  • Change TARGET_CPU to your target microcontroller (in the set statement)
  • Change F_CPU to the frequency of your microcontroller's clock source (in the set statement)
  • Put the full path to your avr c libraries int the include_directories statement
  • Replace main.c with the name of your c source and header files in the add_executable statement
  • Change the avrdude command in the custom targegFLASH to the device and port you're using for downloading the firmware

Create a building directory for cmake and change into it:

 mkdir cmake-build-debug && cd cmake-build-debug

Then compile, link and flash:

cmake ..  && cmake --build . -t FLASH