STM32 MCUs Products

PWM Timer generation not working with low duty cycle

At low duty cycle (like below 5%), the timer pwm stops periodically (see the attached picture). The higher the duty cycle, the smaller the stop period. Does anyone know why this happens?For context, I am using the STM32F072 Discovery board. I use Cub...

I am using STM32F4 processor. The problem I am seeing is that at times the processor resets and the CSR register reports 04 in reset cause which is NRST pin reset. Problem is that we do not see any reset on the NRST Pin.

Scope is configured correctly. Reading of CSR register is done way early in the code and is reliable. Register is cleared after reading. Scope is configured correctly.When we trigger pin reset externally, we can catch it on the scope. When we trigge...

Examples of using the HAL libraries for using I2C as both master and slave on a single I2C interface, i.e. in a multi-master configuration?

Hi there,I'm trying to implement a multi-master I2C network, where there are several nodes (around 6), any of which can send a message to any other. In other words, all nodes usually acting as slaves, waiting for incoming I2C messages. When any node ...

Question about STM32H743 Errata Sheet ES0392 Rev 7

In Section 2.2.13 of ES0392, it states that there is "unexpected leakage current" if Vin >Vdd.What is the bound on the leakage current (assume an FT pin type):Vin = 5V and Vdd = 1.8VVin = 5V and Vdd = 3.3VVin = 3.3V and Vdd = 1.8VThank you.

Can the STM32G0 SPI peripheral be configured for 3-wire SPI instead of 4-wire SPI for bidirectional data flow? Thanks!

The reset source identification register (RCC->RSR) of the STM32H7 is zero after a watchdog reset.

After causing a watchdog reset RCC->RSR is showing as 0. I didn't think that was a valid value unless a jump was performed. I check RSR first thing so nothing should be clearing the bits by setting RMVF bit. Other types of reset seem to work. I haven...