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- Дата: 2-01-2023, 08:53
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Автор: David Clifton
Издательство: Leanpub
Год: 2020-03-18
Страниц: 263
Язык: английский
Формат: pdf (true), epub + Extras
Размер: 155,2 MB
The STM32F7-DISCO board is so right for a theremin implementation, it actually cried out for one. So here it is. This book provides complete requirements, architecture, design, code, debug, verification, and validation info, as well as all of the source code. ST was the first silicon vendor to introduce a Cortex-M7 chip. Like the M4, the M7 has a floating point processor, and a specialized I2S peripheral called the SAI (Serial Audio Interface, I guess). Floating point is a big help in computing envelopes for audio outputs. The M7 also runs twice as fast as the M4. The STM32F7-DISCO board includes an audio codec, the wm8994, and an audio output that works either for headphones or powered speakers. In addition it has a 420 x 272 touchscreen, and a TFT color LCD. The code for the digital theremin is written in C. The vendor libraries were written in C, so the choice was a no-brainer.