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I have an STM32F103 configured in slave mode using NSS for slave select and using DMA. I'm using 8 bit mode. When the master starts clocking the STM32F103 it always shifts out the first byte in the buffer twice. So rather than seeing 0xF0, 0xF1, 0xF2...
We discovered spurious Errors (every half a year) on reading out the GPIO Pin PC14 on a STM32F427ZIT6.The Pinis not connected on the PCB itself.Is configured as Input with PullUpAnd reads in perfectly the High state from the PullUp in 99.99% of the c...
Hello,I have a strange problem on an STM32G071. I get ADC values every 25 ms from ADC1 channel 0 to 3 without DMA as speed is no issue. Strangely when one of the canels reaches about 1.2 V the CPU sometimes goes in a hard fault lock. There is a poten...
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?
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...
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...
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 ...
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...
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 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...
