STM32 MCUs Products

Bug in HAL STM32C011J6M6 when MCO Output is set.

Hello,I have a very simple project to generate 50/60Hz PWM signal with MCO 3MHz output for other HW. So far my code is just turning on the PWM, everything else is generated by CubeMX. But the MCU falls into HardFault when MCO (Pin 4 PF2-NRST) is set ...

What are the potential reasons for Hardfault?

I have a custom board with a basic crystal oscillator connected to the High Speed Oscillator pins of my STM32F446RET6. I assembled 2 boards and found out only 1 board works fine but the other does not. I replaced the crystal and the capacitors but I ...

Using the STM32H757i-EVAL HRTIM, Timer A to generate a square wave. This is working as expected in continuous mode. Rather than run in continuous mode, I would like to specify the number of pulses generated. For example, 10 pulses then stop.

FMC: How to get full memory access on a 32 bit SDRAM via 16 bit data bus?

1)STM32H745I-DISCO, the bus is 16bit and the memory is 32bit. In the spec there is 128M-bit SDRAM.Question is if full memory 1(28M-bit) is available for usage on this kit?2) If answer is yes on first question. We can only access half of the memory an...

Custom board using a STM32H735IGK6 based on a STM32H735G-DK dev board. Different format processor and a different external flash memory (MX66LM1G45G) due to lack of availability of parts. I need an external flash loader. Can I get one or how do I create?

RTC lags

Hi I am having lags in the RTC after one day. I am currently using the Nucleo L476RG board, the RTC oscillator is LSE and my CubeIDE version is 1.6.1. It seems as if in the time intervals where I do not read the RTC it is not updated. The next table ...

Is this correct about the RTC and the sub second counter

I'm using an STM32L051.Is this how the sub second counter works in the RTC? The sub second counter always starts at PREDIV_S when a new second starts?The graph shows a simplified example when PREDIV_S is 3.

STM32H725 FDCAN：A CAN bus fault is caused when the FDCAN is Stoped

One VCU controller A, one USBCAN converter B, one my H7 device C. A is sending, B and C are receiving. When C Stop FDCAN, both A and B report a bus failure.​One VCU controller A, two USBCAN converters B1 and B2, . A is transmitting, B1 and B2 are rec...