STM32G4 & Real Time DSP: Part 5 ADC to DAC with DSP, Multiplication, Addition, and Time Delays

Learn how to pair the ADC and DAC together on the STM32G4 with DMA to create a signal processing system. Additionally, see basic systems like multiplication, addition, and time delays.
Timestamps
0:00 - Introduction
0:03 - DAC Overview
1:20 - DSP System Overview
2:10 - DMA Explanation
5:45 - Setting Sample Rate with Timers
7:25 - Loopback HW Configuration Summary
8:25 - Loopback SW Summary
9:25 - Creating a Loopback System in the CubeIDE
15:20 - Implementing Multiplication
16:40 - Implementing Addition / DC Offsets
20:05 - Implementing Time Delays
STM32G4 Reference Manual:
www.st.com/resource/en/refere...
STM32G4 HAL API
www.st.com/resource/en/user_m...

[@christianejikeomeje3145]

Very interesting, this is the best tutorial ever, after watching this tutorial, I have been able to pic sound from microphone with stm32 filter it with my own digital filter and encryption library I wrote and replayed it, your tutorial was so helpful.
I want to ask how best can input signal be multiplied by a number x2 or x3 to achieve a digital volume control

[@johannbabl5839]

Very interesting and well structured course. I'm looking forward to the other topics.

[@L2.Lagrange]

Excellent. I just got DMA working the way I intended, but i'm guessing this is a more detailed tutorial than the ones I used. Commenting to remember to watch it

[@user-uk5ep9hm5k]

Excellent, thank you. 🙏🙏

[@user-fd4cy8je7m]

جزاك الله خيرا

[@chiragjain8173]

Great

[@1over137]

An interesting tip I discovered you might like to try. Zero buffers. Or rather a single sample at a time. Depends on how much processing your do, but the H7 at 480Mhz can process 8 IIR filters in the time of a single 96khz stereo sample (about 20us).

[@user-xh9cj7in3p]

What model Siglent scope were you using? Thanks. Excellent series. Learning quite a bit!

[@Vutung8988]

What is highest frequency 14-10 bit sinwave can stm32g474re adc and dac?

[@armoneghbali1830]

Do I need to use the half complete callback function or is that more of an assurance thing?

[@mihapeterle204]

i dont agree, the max delay ist the sizo of adc/dac array, biger dalays require more temporary variables