Ask questions, find answers, and share insights on STM32 products and their technical features.
Hi ST Family,We are using STM32H745BIT6 MCU in our design and interfaced the same to multiple I2C slaves. For I2C lines, we have connected pull up of 2.2K to 5V power rail. In STM32CubeMX, we are enabling "No pullup or No pull down" for I2C lines.Sin...
Hey there community, I am having trouble fixing an interesting scenario on Usart communication,With the same software doing a reception on a given usart interface, It has been noticed the reception segregates one connection but not the other, Both co...
My design uses a STM32H750VBT6 MCU with the USB3300-EZK PHY for high-speed USB. The hardware and software implementations are complete and in general everything works extremely will. The only issue I am seeing is that there are occasional startup pro...
I'm in need to scan a bunch of contacts in a 4 rows, 8 column diode matrix configuration. PA0-PA7 are the inputs, PB12-PB15 the outputs. What I'm wondering about is the PA0-WKUP special function in contrary to the rest of inputs (PA1-PA7). Do I have ...
Hi community !I was working on a custom STM32 board as part of a robotics project. We started evaluating STM32H7 through the Nucleo boards, and now that we've confident with our chip selection, I designed a custom nucleo-type board, which can later b...
hello community ! I'm facing issue wiht RS485 mod on USART3. Please find here a TL;DR of the issue, context, workaround and finaly request for answers. HARDWARE PLATFORMMCU: STM32U595USART: USART3 configured in RS485 modePROBLEM DESCRIPTION:During de...
Hello, I'm reading the article on "How to create an STM32N6 FSBL load and run" and have a couple of questions about DFU implementation on the STM32N6: 1. Is DFU possible with the application as part of the FSBL? 2. Is there an example on how to imple...
Is there an easy way to find devices that support specific CAN buffer configurations?For example, some only have receive queues whilst others allow a number of receive buffers to be configured (which is what I want). I know the H7x7 supports this, bu...
Hello everyone,We are having trouble getting tracing to work with our target at full clock speed and would like to understand why, we have an application running on STM32U575 @ 160MHz CPU clock, we also connected the J-Tracer to it using a connector ...
Hi,I do not plan to use USB, and the STM32N6's VDD is 1.8V.However, creating a new 3.3V power supply just only for the VDD33USB pin is too inefficient.The datasheet lists the absolute maximum ratings for VDD33USB as ranging from 0V to 3.6V when USB i...
