Forum Posts
Alternate Function 0 in STM32
In my STM32, if I have set the GPIO_MODER as "Alternate function" and did not set any values in the GPIO_AFRL and GPIO_AFHL, I guess it will take the defaukt value of AF0. What is AF0 used for ?
Unable to calculate the correct smooth calibration value for the RTC on an STM32F411. Can you spot my error?
Hello, I am having trouble calculating the correct calibration value for my RTC 32K osc. My setup is as follows. STM32F411. 32768 LSE osc. I am passing a 1HZ signal out of the micro and I am measuring it with a 5Mhz precision oscillator and counter,...
What file defines ITM_RxBuffer?
I'm building my application which includes the CMSIS core_cm4.h file and get an `undefined reference to `ITM_RxBuffer'` message. What file actually defines this variable?
STM32F103REY6TR We bought this part at different times，Now，Different appearance phenomena are found on the surface of the chip，One has a specular sheen and one has a matte black，I wonder if both are normal phenomena？At the same time, attach a picture of t
If so, what are the reasons for the difference，If not, which phenomenon is normal? Please see picture， Thank you very much
Difference between Run mode currents in the datasheet
what is the difference between these below currents– 84 μA/MHz run mode vs Run mode current of 9.45mA in the below table I always confused which current i have to consider while doing power calculations.like uA/MHZ when to consider and with out indic...
Resolved! Advice on buying a display for STM32F469 Discovery
Hello.I'm going to purchase a round AMOLED display to be used with a STM32F469 Discovery board. This is my current candidate: PV13904PY24G. This display has a resolution of 454x454 pixels. TouchGFX says STM32F4 is usable for displays up to 450x450 pi...
Resolved! Expand struct in flash without change location of next data
Hello everyone, I currently have devices with a specific FW released on market. In this FW there is a structure saved in internal flash memory (with "const" and defined areas on linker file).In the new version I am working on, I need to expand an arr...
After testing the firewall example, NUCLEO-L476RG is resetting continuously even running a simple blinking example with no firewall function.
Board : NUCLEO-L476RGIDE : STM32CubeIDE 1.9.0Driver : STM32Cube_FW_L4_V1.17.2Hello,Recently, I tested the firewall example using the NUCLEO-L476RG, and I have been experiencing strange behaviour since then.After testing the firewall example, the boar...
different behaviour of my chip select with different payload size
Hi,I am working with stm32H743II Board - which define SPI4 block as SPI Master according to the following:void MX_SPI4_Init(void) { /* USER CODE BEGIN SPI4_Init 0 */ /* USER CODE END SPI4_Init 0 */ /* USER CODE BEGIN SPI4_Init 1 */ /*...
