Difference between STM32L433RCT6P and STM32L433RCT6?
Where generally do I find the difference described between different mcu models in the same series with same major features. For example the difference between STM32L433RCT6P and STM32L433RCT6?
STM32 MCUs Products
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Input compare trigger interrupt on specific encoder tick value
Hi all.I have a motor connected to my STM32F7 board and I'm trying to generate an interrupt for every rotation. Each rotation is 2122 ticks but I keep getting an interrupt for every pulse generated from the motor encoders. My init code is:static voi...
STM32F767 - Problems with the SPI communication
Hi,I started now programming the STM32F767ZI MCU and do not have any experience with 32bit uController.I have to programm a project, which includes a SPI communication to an external ADC. It must be programmed with the LL library and I'd like to do t...
How to reset I2C on STM32F4407 without resetting the MCU
HelloI have trouble with handling an I2C error on my STM32F407. My I2C bus usually works fine but it sometimes hangs, with both clock and data lines are high, but the I2C communication does not start. The SR2.BUSY bit remains high and sometimes when ...
Resolved! Behavior of floating point divide by zero
Hi, everyone.I have found a bug in my code resulting division by zero (float).We get hard fault if we try to divide an integer number by zero. So how does this process work for float numbers? I have tried this code and result is very strange. MCU han...
How to enable FPU Exception interrupt handler in STM32H7
Hello,I try to use the FPU exception interrupt handler in STM32H743ZIT but the FPU interrupt is not coming. I initialized the interrupt in this way:HAL_NVIC_SetPriority(FPU_IRQn, 0, 0); HAL_NVIC_EnableIRQ(FPU_IRQn);Than provoke a division by zero FPU...
Compiler optimization for speed on STM32H747HI-DISCO
Compiler optimization for speed on STM32H747HI-DISCO board destroys accessing external flash in memory mapped mode. Works fine without optimization but I get a hardfault as soon as I try to access memory from 0x90000000 after memory mapped mode is...
1us timer TIM6 not working as expected (different frequency)
Hi allEDIT: I am using the STM32F407 discorvery board. Apologies for not mentioning this in the original post. Just when I thought I understood the timers, I noticed a fundamental understanding problem on my side. I am trying to create a 1us timer us...
Resolved! Nucleo-F767ZI SPI config
Hello,I am practicing with nucleof767ZI. I have stuck with the SPI, here i am trying to send some dummy data and read it through an analyzer. What I get is MOSI always low and SCK is always high. I find no change or pulses in clock line. As of now no...
Can't program STM32F301K8U7
I can't download rom file when using STM32F301K8U7.The programmer can connect the MCU and recognize it. But there always are errors when modifying the flash. All reading data are 0xFF, even after I erasing the total chip.The programmer I tested are ...
