My Dac output is not at the desired value !
I cannot get a value of 0 in my dac output on my stm32f4 discovery card. The value I got is 42.5 mV for 0 input. how can i solve this.
Forum Posts
Problem with ADC-Channel 16 (internal temperature) on STM32F207
Hi guys,I have a problem with the internal temperature ADC-channel. I am trying to read a few analog values with ADC1. The ones I read from pins are perfectly fine but when I change the input voltage on PC13 (channel 13) this changes the value read o...
Why is the arm_biquad_cascade_df1_f32 function causing weird "noise" like signals in my DAC output?
Hey guys!I am trying to implement a difference equation into the STM32 MCU, however Iam getting this from the output of my DAC and I have no idea why this is happening?#include "main.h" #include <stdint.h> #include "arm_math.h" ...
Writing and reading QSPI Flash on STM32F746G DISCO
I created my application using the CubeMX. Here are my read and write routines, my QSPI initialization routine, and while loop. I am using the USB to display what is read from the QSPI flash memory. I am writing a string to the memory, but when I rea...
STM32 ADC sample rate
Hi, I'm using adc single channel with interrupt. the sample time is set as 56 cycles, and the adc clock is (108MHz/4=27MHz). So the sample rate is 27MHz/(56+12)=397KHz. I also using DAC to generate a sinewave with the frequency of 1KHz. If what I cal...
Issue with reading pulse widths in input capture mode using two timers.
Dear All,Board: Nucleo - H745ZI-QWhat am I trying to do ?I am trying to measure pulse width of an signal using input capture mode of timer 2 channel 1. Then multiply that width by two and wait for that much time and generate an output pulse using out...
STM32F4 Center aligned pwm timer
I configured timer1 for pwm generation center aligned like below in cube ide.I update duty cycle writing directly CCRx register asyncronously in the code.Most of the time pulses are effectively center aligned but sometimes not (nor left or right ali...
Unable to read correct pulse width using busy loop and timer.
Dear All,Board: Nucleo - H745ZI-QWhat am I trying to do ?I want to measure pulse width of an input signal using a busy loop and a timer. I keep monitoring a pin configured as input , when a zero is detected (by default input is around 3 volts), a fun...
ADC only 4Msps?
Documentation say ADC have max 4Msps, but it refer olways to 60MHz to adc (60MHz * 15 cycle = 4Msps) but manual say ADC max frequency is 170MHz, then 170MHz * 15cycle = 11Msps.This clock is different from Fadc (aka adc kernel clock)?https://www.st.co...
Print SWOTrace in the IDE debugger console from both cores.
Hi,i'm working on a STM32H755II MCU, I followed this guide and setup two debug configurations one for CM7 (that downloads both codes) and one for CM4. I added on the CM7 project the common implementation for printf:int printf_swo(char *ptr) { uint32...
