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MCU:STM32F0discoveryTools:STM32CubeMX5.6.1+Keil5.3OS: Windows 10proQuestion:When I use the PLC system`s interrupt, always the interrupt just trigger once in the first scan time.But in the MCU system, I find that the interrupt can be triggered by the ...
Hi guys, I recently posted similar question but now I have some actual measurements.I have measured the frequency of the clock signal comming from st link to microcontroller which was 8 MHz (correct). Then I did setup of prescalers, configure system ...
I'm setting the SPI input clock for the port I'm using at 50MHz to allow SPI speeds up to 25MHz for use with an SD card under SPI. However, this gives a minimum speed of 50MHz/256 = 195KHz and this is too fast for initialising some SD cards. I need t...
HiI am using the STM32F407 discovery board. Yesterday evening, I tried to init the SPI1. Then something strange happened. I suddenly receive the error message "Fail to insert all hardware breakpoints: You may have requested too many hardware breakpoi...
I am writing an application and bootloader to STM32H7.I append some data to the end of the application. My bootloader needs to be able to read this appended data.When my bootloader first writes the application via (erase->write to memory).When the sy...
In Cube, setting the Comparator to work with the DAC requires the DAC to be set as a GPIO however, I'd like to use the GPIO pins for other tasks, is this possible or does the DAC need to output on the GPIO for the comparator to work?
Dear ST-community,I am trying to sample four basebandvoltages simultaneously. Therefor, I trigger 4 ADCs with the same timer in dual simultaneous mode. However, I encountered a problem with the digitized voltages. An image is attached (Y: ADC3, P:ADC...
Hello guys I just want to ask why adding a callback is causing additional time delay to counters. In my case I created a periodic pulse using the PeriodElapsedCallback which is in interrupt mode. I toggle the output every 300ms and this is working ...
Good morningSeems I come a little further with my GPIB Nucleo-F207ZG project where ports stopped responding...The initialization for the SPI1 looks like: hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_MASTER; hspi1.Init.Direction = SPI_DIRECT...
STM32L152 has 12-bit ADC. How to convert the ADC's digital value into Volt, if there is a 'Vref' reference voltage, and Vref- is grounded? I met two common solution for such ADC conversion:(1) V = CODE / 2^n * Vref(2) V = CODE / (2^n -1) * Vref(CODE ...
