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Hello all,I’m hitting a USB edge case on an STM32H573 in the 68-pin package (no VBUS sense pin, no VDDUSB domain).My setup (works fine in application):The product is self-powered (3V3 is always on). Because the package has no VBUS_SNS, I detect bus p...
Hi,I want to use LPTIMx to output a PWM signal that changes duty cycle on each period with DMA. The HAL driver implementation for LPTIM PWM is completely wrong, so I tried to find out how to do this from TRM etc.LPTIMx has 3 DMA request events:2xCCRx...
Hi, For a reason that I cannot explain, the STM32U575ZI (on the nucleo board) is sending a CAN bus message with infinite repeats and 100% bus utilisation, but I have repeated transmission turned off (DAR bit set to 1) and I have confirmed this using ...
Hi I'm playing around with the RTC & tamper peripherals of the NUCLEO-H7S3L8. I'm wondering if the TSOVF can be set when multiple tampering are detected in VBat mode ? If I'm not mistaken, the RM doesn't say anything against it. However, using the RT...
Hi everyone,I’m trying to generate a square wave using TIM5 Output Compare (OC) on an STM32H7 board. I configured TIM5_CH1 to output on PA0, both in CubeMX and manually in HAL_TIM_MspPostInit(). Here is a snippet of my GPIO init: GPIO_InitStruct.Pin ...
Hello,I am working with STM32H743, using ADC1 and 2 in dual simultanious mode, using DMA to store data from ADC_CDR (2 16 bit values) to memory, some hundred values in a stream in continuous mode. This works fine in general but I frequently see a mi...
Hello Community, We are using an STM32U595ZJT6Q microcontroller and have connected an MB85R4M2TFN-G-JAE2 FRAM via a parallel interface. The setup works well under normal operation and even after a power cycle — all data is retained and verified corre...
Hello ,I am working with comparators on the STM32L496VGT6 microcontroller.In my setup:COMP1 is configured for rising-edge detection.COMP2 is configured for falling-edge detection, forming a window comparator arrangement.One input of COMP1 is connect...
As the subject line says, I've written a USART driver for a STM32H755 project where I want to detect a special end-of-line character, for implementing a simple command-line interface.Originally this used DMA with the USART FIFOs disabled, but I recen...
Hello, I have an STM32L4R5 MCU on a custom PCB and I have flashed it with my firmware via USB_OTG_FS. Both CubeProgrammer and the CubeIDE have worked in flashing the MCU for me, given I have an ST-LINK connected to it as well. I have USB_DM, VBUS_Se...
