Ask questions, find answers, and share insights on STM32 products and their technical features.
Hi,I am using STM32f107vct6. I want to create generalized GPIO function which can set gpio mode. I am using pointer to access peripheral registers. I have tested following1] Configured gpio using structures which are available in library(i.e. GPIOA...
Hi!I want to use STM32 U5 for communication with smart cards. USART is configured in a smart card mode, but I don't know how to read ATR, send APDU commands. Is there existing firmware for this use case?Can you give me advice which firmware can I use...
Hi, I'm trying to jump to a FreeRTOS app via a bootloader that i made. I'm pretty new to this. I know there is a lot of similar topic on the internet but none of them fixed my problem. When I try to jump to my FreeRTOS app with my bootloader, nothing...
Hi all,I'm making a clock and I wanted to update the display every minute (I do not display seconds) so I thought I'll set the alarm mask for minutes only but that didn't work. I read here that the RTC is more meant to trigger an alarm at specific ti...
Hi,i am using a STM32L010K8 MCU and i want to wake up from stop mode when a RTC-Wakeup interrupt occours. Here in this example i set the RTC wakeup interrupt for 30 seconds. Without entering the sleep mode the RTC IRQ works fine. But if the MCU enter...
Not getting expected responses from motor according to ST manual. @Enrico Poli maybe you knowIs there something wrong with our Modbus packets or is what we are seeing correct and the manual is wrong? The answers here seem OFF TOPIC and cause confusi...
Is there any known quantification for how the calibration improves the accuracy of the ADCs?
Hi, I have a problem entering Stop Mode 2 with STM32L451CCU6. My current consumption is around 600 uA, while expected should be much lower. What can cause this problem? Here is the code: use cortex_m::asm; use cortex_m_rt::entry; use stm32l4xx_hal::...
I am feeding 1.75V into an ADC input on a STM32F407 and see the voltage source is clean and consistent on a scope. I continuously read the value every 20ms. I see the ADC value change between 2108 to 2130. How consistent should the value be? I'm ...
I am designing my first PCB. I am working on the project that needs low power consumption. For this we chose STM32L031G6U6 microcontroller. After collecting some measurements, the CPU will be put into sleep mode and wake up every minute or so for a f...
