STM32 MCUs Products

stm334 - hrtim with external events.

I want use external event (GPIOB-pin7) for turning pwm on hrtim1 (like switch), but can't find example how do it. I think I need "blanking with latch mode", but my code does not work.

STM32F722CV - USART1 RX Interrupt not working.

Hello, I am trying to communicate MCU with using USART1 but interrupt never triggered in MCU.First I am using some definitions. Here is definitions for USART1.#define USART1_PINS_PORT GPIOA #define USART1_RX_PIN GPIO_PIN_10 #define USART1_TX_PIN ...

Standard Peripheral Library limits STM32F4xx USART to 7.5 Mbit/s, instead of max 10.5 Mbit/s

I am using the STM32 Standard Peripheral Library for STM32F4xx, part number STSW-STM32065 , version 1.8.0.I am using USART6 on a STM32F407 to do SPI transfers. Unfortunately, I ran out of real SPI interfaces. But USART6 has an "SPI master mode" which...

stm32l432kc dev board debug interface?

I have a STM32L432KC board purchased by a colleague. I installed STLink device drivers according to sheet and try to set it up. However, it never gets recognized as a STLink device (neither on Windows 7 nor on Mac OS Majove) but rather as a J-Link de...

Does Dfu capability on a device depend on firmware running on this device?

I haven't found Dfu code anywhere.

STM32F439 USART really don't have a dedicated pin to control RS485 PHY direction?

I2C Slave ISSUE on STM32L0

Hi everyone,I am trying to develop a Master-Slave system using two Nucleo-L053R8 boards. The first one is the master, which sends a command to the Slave board whenever the onboard button is pushed. Each time a new message is received, the slave board...

STM32F302 does not release SCL on Arbitration Lost Error (ARLO) in Slave Mode

Hello,I'm using a STM32F302RBTx in IC2 Slave Mode with Clock Stretching Enabled.In general the Communication with a Master works fine. During testing the following problem appeared: When an Arbitration Lost error is introduced, the Slave detects this...

I need to know what are the limits for setting the sub-second RTC resolution?

I am planning to use a STM32F746xx device with PTPV2 time synchronization methods and am wondering if I can maintain the on-board RTC sync to at least 1 millisecond resolution or smaller. I see there are various setup registers to scale the clocks ...

STM32H743 ADC calibration timeout

Posted on May 17, 2018 at 18:07My ADC clock is 25 MHz andHAL_ADCEx_Calibration_Start(&hadc1, ADC_CALIB_OFFSET_LINEARITY, ADC_SINGLE_ENDED) will return an error due to ADC_CALIBRATION_TIMEOUT being exceed I changed the value from 64000 to 640000 and ...