How do I calculate how many clock cycles are needed to run block of code?
Is it possible to calculate how many clock ticks a function or select block of code will use up?
STM32 MCUs Products
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lsm6ds3 registers problem
Hi everyone!I'm using a custom board with an stm32l051 and an lsm6ds3(and two 4.7kohm pull-ups). I am setuping the I2C1 (pins PB7 SDA and PB8 SCL). then I do the IMU setup in which I write some values to control registers on the IMU. then I read the ...
DMA interrupt documentation error in RM0440
In RM0440, it states that "Generation of a single interrupt request for the DMA1 controller," however looking at the exception vectors indicates that there is a separate interrupt vector for each channel for both DMA 1 and 2. Also the stm32cube libra...
Resolved! Wrong value transmitted over I2C bus by the microcontroller (0x58 instead of 0x0A)
Hi all,I am using STM32F303CB microcontroller, connected with a I2C slave which has no CLK stretching support. The I2C bus lines are pulled high with 4k75 ohms resistors and the lines have a serial resistor of 50 ohms (approx.). The schematic looks l...
Is there a way how to exclude files from build in STM32 Cube IDE by specifying the list of excluded files/directories in the directory tree (something like .gitignore) rather than clicking Resource Configurations -> Exclude From Build?
We have got quite complicated repositories structure and excluding everything manually for new projects takes too much time.
Unable to get a proper display on TFT screen interfaced with NUCLEO-F401RE board.
Hello everyone.. After a lot of efforts, I found a working library for 3.2" TFT color LCD display with ILI9341 driver (240x320) which I am interfacing with my Nucleo F401RE development board. I just tried writing a simple "Hello World" code after fil...
Resolved! What might happen if GPIO pin is drived HIGH level before STM32F407 is powered on?
Hello, ST expertIn our custom MCU board design, some GPIO pins can be drived HIGH before MCU is power on. I found that sometimes (low possibility)these GPIO pins damaged, that means these pins can not be drived high again. I am not certain it is cau...
Resolved! Is it necessary to disable VCP to acces USART1 via pins PA9 and PA10 on STM32F429I-DISC1 (E01) ?
Hello,I am trying to connect to my STM32F429I-DISC1 (E01 revision) board's USART1 on pins PA9 and PA10 using an FT2232HL as USART to USB interface. I've seen in the user manual of the STM32F429I-DISC1 that the solder bridges SB11 and SB15 connecting ...
