Ask questions, find answers, and share insights on STM32 products and their technical features.
Folks,I've used SPI many times on STM32F1, F0, F4 devices, but am have a mare with a H563. I have two 74HC165s reading sixteen switches.For hours and hours I couldn't get any clock out when I executed:SPI2->TXDR = 0;Eventually I tried setting the CST...
Hi There - I'm very new to electronic design and need help making a key design decision. Specifically I want to know that the performance will not be a problem when writing to external memory from a stm32 over Quad Spi. I don't want to end up making ...
Hello, can someone point me to where there are some demo programs for working with GPIO as individual pins and creating a bus from a number of outputs. I am also looking for a demo program with general s/w based timers, for example, in mbed which is ...
Hello community, I have this difficult task of powering an STM32G0B1 from a pin that was really not tasked for that (because the connector I have to plug onto provides no supply pin). In short, I can't draw more than 500µA current at any time or I ri...
I tried creating I2C connection between my stm32 board and esp32. I assume it is not working because of my code, due to the wiring being so simple in I2C communication, the pull up resistor is connected externally. Do you guys see any mistake in my c...
Hi, I have problem. I have idea: my STM32H745 must read GPIO state as quickly as possible. FCPU = ~400MHzI wrote the program in assembler for M7LED_ON()ldr r2, [r3, #IDR]ldr r2, [r3, #IDR]... ~650xLED_OFF()...only read, IDR, no write (no record yet)A...
Hi,I am new with stm32F411 mcu, and i have a question. if i want to use RTC features, do i need to add an external 32.768kHz xtal ?Thanks.
Hello, I am trying to set up this is STM to connect it to another microcontroller via LPUART. To my understanding USART1 is unusable since it is connected to J-Link. I have attempted with LPUART setting up both PA3 and PA2 pins as the respective TX a...
I am first time using NUCLEO-H755ZI-Q board for our project.Here I am using it as a SPI slave and RaspberryPi4 as a Master SPI Device to transmit/receive data over SPI from MCU shown in attached image1. I have set RaspberryPi4Master SPI CLOCK as 24Mz...
Hello st community,I'm trying to set up a bleutooth communication between my phone and my stm32 with the Adafruit module in SPI communication, but I'm having a problem.When I use my arduino and the demo code it works perfectly but when I connect to m...
