STM32 MCUs products

Resolved! ADC_DMA in other file than main

Dear everyone,I'm trying to use ADC in DMA mode, inside other file (a library).My ADC.H/* * ADC.h */ #include "stdlib.h" #include "stdio.h" #include "string.h" #include "stm32f1xx_hal.h" #include "stm32f1xx_hal_conf.h" //-------------------------...

DMA - from SPI to DAC - 16 bit

Hi,I use DMA for transfer data from external flash memory to DAC for playing sounds - in 8 bits mode like that:1) TIM6 gives impulses to DMA_1 - which transmit dummy byte to external flash in 8 khz intervals (Fsampling of sound). External flash alw...

Resolved! How does the Timer - DMA - Look up table to DAC index get set? Is it possible to change the index

I have a project where I'm using a Nucloe G474RE to produce a sine wave, all is working great; I have an array of 2500 values which produce a SINE wave starting at 0 degrees; I would like to add 2 further Sine waves starting 120 and 240 degrees later...

Resolved! Why won't my DAC output a voltage larger than 2.56v?

Hi there,I've been having difficulty trying to make the DAC channel 1 output 3.3v. The largest voltage that the DAC outputs is 2.56 volts which I measured with an oscilloscope. I try to set the output voltage to be higher with the following code snip...

Hi, I've purchased an STM32H723ZG Nucleo Board to evaluate and test the potential of the onboard DAC. The max sampling time for the STM32H72x with the max bus speed at 137.5MHz is 51.1Msps as described in the AN4566 but I can't reach them.

I'm trying to generate a 1.2 MHz sine burst using the DAC, DMA and Timers. Everything works fine but only up to 200-250KHz then increasing the frequency the amplitude begins to decrease.Moreover I've managed to reach about 25Msps and it seems impossi...

I wonder if it is possible to use the DAC in STM32G4 to produce a 30kHz sinewave with 1Hz resolution.

The application is to fine tune acoustic resonantors. In other words we want to be able to tune DMA DAC output from 29.990 to 30.010 in 1 Hz steps. Ideally we also would like to tune the amplitude. There are some ideas with DAC reference prescalers a...

Resolved! NUCLEO-U575ZI DMA->DAC doesn't work (USEF)

Hello everybody! I have a sine-wave array, that I throw to the DAC, triggering it by TIM6. When the TIM6 interrupt routine is responsible for supplying samples - everything works fine, but when I try to use DMA nothing works. The DMA keeps spitting t...

Resolved! NUCLEO-U575ZI DAC optimal sampling rate for 40hz sine generation?

Hello everybody! Sorry, I am a pianist and know very little about engineering, so I most probably will use a naïve terminology, please bear with me.The thing is I use built-in 12-bit DAC in order to generate a simple sine wave. The frequency is a bou...

STM32L562 DAC output on PA3 via OPAMP1 follower breaks when using PA4 as GPIO output

I can successfully output an analog voltage on PA3 from DAC1 Channel 1 via OPAMP1 in follower mode. If I try to use PA4 as a GPIO output the analog voltage on PA3 disappears. Is this a known issue with this chip? Are there any workarounds?The referen...

Resolved! Connect/disconnect DAC from pin on the fly for a diagnostic test?

I have an analog circuit that is read by an ADC input. I would like to have a self-diagnostic function where I inject a known signal to the input of that circuit with the DAC for a self test, then disconnect the DAC from the pin and leave the pin in...