electro
/
stm32f107-audio-dotmatrix-visualiser
1
0
Fork 0
Code Issues Pull-Requests Releases Wiki Aktivität
Dot matrix audio spectrum visualiser based on an stm32f107 STM eval board and several chained MAX2719 drivers
Du kannst nicht mehr als 25 Themen auswählen Themen müssen entweder mit einem Buchstaben oder einer Ziffer beginnen. Sie können Bindestriche („-“) enthalten und bis zu 35 Zeichen lang sein.
15 Commits
3 Branches
0 Tags
2.2 MiB
 
 
Tag: Branch: Struktur: master
Branches Tags
${ item.name }
Tag ${ searchTerm } erstellen
Erstelle Branch ${ searchTerm }
von „master“
${ noResults }
Ondřej Hruška dd29fa8dff
added twitter video link 		vor 8 Jahren
Drivers added missing dsp lib, and simple trigger for waveform display vor 8 Jahren
Inc implemented printf logging vor 8 Jahren
Src comment vor 8 Jahren
User improved UX with the control buttons, added README.md vor 8 Jahren
.cproject Initial vor 8 Jahren
.gitignore Initial vor 8 Jahren
.mxproject better capturing code, untested fft code added vor 8 Jahren
.project Initial vor 8 Jahren
CMakeLists.txt added spindle effect vor 8 Jahren
README.md added twitter video link vor 8 Jahren
STM32F107VCTx_FLASH.ld Initial vor 8 Jahren
STM32F107xC.cmake Initial vor 8 Jahren
f107-fft.ioc Initial vor 8 Jahren
f107-fft.xml Initial vor 8 Jahren
flash.sh added missing dsp lib, and simple trigger for waveform display vor 8 Jahren

README.md

STM32F107 Audio Visualiser

Simple audio visualiser with a dot matrix LED display.

Video

Functions

  • Using the central joystick button, select render mode.
  • Arrows left, right adjust brightness.
  • Arrows up, down adjust sensitivity.

Modes include:

  • waveform display with simple triggering
  • FFT display
  • Spindle FFT display (mirror effect)

Target hardware

Developed for the "STEVAL-PCC012V1" evaluation board with STM32F107, paired with a "TS4657 Audio card" daughter board.

The skeleton of the project is generated using STM32CubeMX, with some minor modifications. The majority of the visualiser code is localed in User\user_main.c. The other files in User/ are helper functions and modules. It's a CLion project, using CMake.

The project uses USART1 for debug messages (PB6 - Tx, PB7 - Rx). The display is controlled by multiple daisy-chained MAX2719 drivers (available on ebay as modules). The first driver is interfaced over SPI1 (PA5 - SCK, PA7 - MOSI, PE6 - CS)

There is a 5-direction joystick connected to PE10, PE11, PE12, PE13, PE14.

The Audio daughter board carries a ST472IQT microphone pre-amt with an electret microphone.

For details, see documents UM0896 and UM0722.

Porting

The project will work without bigger changes on any STM32Fx, you just have to adjust the pin mapping and update the linker script and defines. That can be done with some attention using STM32CubeMX.

Note that some settings that can't be adjusted in CubeMX directly are changed in this project. Use git diff to see what changed after you re-generate the initialization files, and revert those changes. They are marked by comments.

TODO

  • Save preferences to Flash