STM32 MCUs Products

Resolved! STM32F405 About recovery from standby mode. Is there any way to recover from standby mode with UART reception?

Is it possible to wake up by connecting the UART pins in PWR_EnterSTOPMode to the pins used for wake up?

STM32F7 tim3 rollover with reload works, how do I get the interrupt for each external pulse?

I have tim3 setup to count to 25,000 using a 2.5Mhz input signal. This works. I enable the global interrrupt and it fires whenever the counter rolls. I have an issue though, that when I poll the timer for the count, it is double it should be and I...

How is CAN message RAM initialized/zeroed on STM32H7?

I have the problem that the CAN message RAM which is allocated for the acceptance filters is not zeroed out on startup.The part of the CAN message RAM allocated for acceptance filter seems to just be random data which means that usually no CAN frames...

Resolved! Missing bytes during SPI TX + strange MOSI line on oscilloscope

Problem description:1-2 bytes in a ~30 byte message (usually at the same spot in the msg) are sometimes missing. Usually it is the 13th byte.If I send shorter msgs via SPI like 10 bytes, the other party receives them correctly.If I wait 50us after pu...

Trying to do an encoder with an FSM

Hello, right now im trying to do an encoder as a project for my digital electronics class. I've done it in two different ways, by functions and by switch cases, and neither seem to work. I have to make it so every time a switch of states ocurr within...

When does FLASH lose data

在我的使用中，一些�?�数是在�?�片机（STM32F446ZET6）的闪存中�?置的，但在未知情况下�?�数丢失。在断电之�?，有断电和通电�?作。请问这是什么原因造�?的？解决方案是什么？

How to know what cause Error_Handler?

Often trip to Error_Handler from usb_device.c and usbd_conf.c.void Error_Handler(void){ /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); while (1) { } /* USER CO...

Resolved! Hello, What does revision "A" and "1" mean? Please see photos. BR Krzysztof

STM32F429 to STM32H7A3 migration

Hello There,I'm looking to migrate from STM32F429ZIT6 to STM32H7A3ZIT6 for a TFT application.I have checked H7 will provide better performance on this.There is one more thing that comes to my mind that H7A3 has better specs than F429. Then why F429 p...

Resolved! Nucleo-U575zi-Q ADC reading garbage values

I'm new to the stm32MCU. I am using a Nucleo-U575zi-Q board. I am trying to read ADC values by setting the built-in DAC. I have check my DAC out and it is working fine. My ADC reading is giving me garbage values. I have set HAL_PWREx_EnableVddA() als...

STM32 MCUs Products

Forum Posts

Resolved! STM32F405 About recovery from standby mode. Is there any way to recover from standby mode with UART reception?

STM32F7 tim3 rollover with reload works, how do I get the interrupt for each external pulse?

How is CAN message RAM initialized/zeroed on STM32H7?

Resolved! Missing bytes during SPI TX + strange MOSI line on oscilloscope

Trying to do an encoder with an FSM

When does FLASH lose data

How to know what cause Error_Handler?

Resolved! Hello, What does revision "A" and "1" mean? Please see photos. BR Krzysztof

STM32F429 to STM32H7A3 migration

Resolved! Nucleo-U575zi-Q ADC reading garbage values

STM32U5 Triggering DMA request from timer to write...

WKUIE bit in IER

STM32H7 UART TEACK forever after clock switch

STM32N6 FreeRTOS linker issue for MPU

Wrong echo from STM32F4 USB device

STM32H7S78 USB CoreReset timeout