Forum Posts
Send 32bit data on SPI protocol
Hello,For communicating with a sensor I need to send 32 bits as a clock for my sensor. As you can see in the 8-bit data transmission an interruption occurs during sending 4 bytes which is unpleasant for my communication. I wrote a Software SPI (bit-b...
STM32F103 ADC read voltage value difference
Hello, I am uing STM32F103 MCU and I am having a small problem with the ADC. There is a 250 mV difference between the real voltage value on a pin and the value ADC gives me. When I measure the voltage on a pin it is 900 mV. But when I print out the A...
Resolved! Lowest power mode which resumes program after wake?
Hi all,I'm developing a low power sensor node using the Nucleo STM32L432KC development board, and I was wondering what the lowest power mode is from which the device can wake up and just continue operation from the next line of code after the sleep c...
Resolved! Concept and operation of SDMMC kernel clock of STM32 H7 family
Hello everybody,Regarding STM32 H7 family:I am going to use SDMMC module of one chip of H7 family,by my own C code and without using any operating system(if possible) .As I ponder the manual reference of the chip,I noticed to "sdmmc_ker_ck" or "SDMMC...
The issue in stm32 encoder mode.
Hi, I'm using STM32F103C8T6.When i used encoder mode on TIM3 and 4, I found that it's really unstable, when I restart or reset the microcontroller, it often can not read the encoder data (about 3/5 times). I measured the voltage on these timers's pin...
Is there anyway to calibrate ADC in STM32f429ZI MCU?
HiI am getting too much noise in my signal as soon as I acquire it. The oscilloscope screenshot shown below is the actual signal. Below is the signal shown after acquisition through ADC. I have found no instruction for ADC calibration. What else can ...
How Can I Code For Boot-loader In STM32F030K6T6 Using I2C Protocol With Anther Board of STM32F030K6T6???
Hello , I Am Working With Two STM32F030K6T6 Board ,Which is Used As a Boot-loader application With I2C protocol. So I Can Communicate Small Data But Some How I Can Not Communicate A Long Data To Transmitted or Received From Master To Slave Or Slave T...
STM32L0 low-power run mode
Hi,I'm tring to set low power mode in an STM32L031 MCU, using a NUCLEO 32 for evaluation first.Now my aim is to set MCU in a low power mode, only checking some digital pins during this state.Anyway, I switched off analogs and LPUART beforw invoking ...
NVIC registers undocumented?
RM0365Reference manualSTM32F302xB/C/D/E and STM32F302x6/8advanced ARM®-based 32-bit MCUsSection 13 describes the NVIC but is missing the sub section describing the registers to actually manipulate it. I can see from the debugger that its registers a...
