STM32 MCUs Products

Resolved! stm32f1 f4 usart sr register reset value are different,it is print error or it is truely different

Resolved! Hi All. What will happen if try to toggle pin with alternate function. Controller will ignore this command?

STM32H7 ADC + DMA working partially

Hello,I am using the ADC1 + DMA to sample 10 analog channels on the CM4 without any MPU config. When I remove any external trigger e.g. 3.3V power source on the analog channel, and I start sampling all 10 channels via the DMA , all values inside the...

STM32H7 ADC with DMA not working, Cache disabled

Hi,I am trying to use the ADC with DMA but the values on the buffer are not being updated. Next i detail the steps that i have done:Disabled the ICache and DCache.Place the DMA buffer in a separate section in RAM_D2 with the address 0x30000000, so th...

Resolved! How many interrupt by an exception having higher priority can be executed?

The execution of an interrupt handler can be preempted by an exception having higher priority.How many interrupt by an exception having higher priority can be executed?In the link below, two interrupts are generated. Is this number infinite?

Alternatives to STM32L4A6ZG?

I can't get the SDMMC working with DMA on the STM32L4A6ZG, so I'm looking for alternatives. I've already started down the path with the NUCLEO-144, so I'd prefer something that I can get on that. I've heard (from Tesla DeLorean) that "the L4 has at l...

How can we do the simple UART for the STM32H745I-DISCOVERY board using the MDK-ARM?

I am using stm32h745i-discovry board as my development in the arm keil. Here I need the uart communication . could you please send me the example code for this.

Is it possible to create RAM section for stm32l151rd? (It has only 1 Ram area)

Hello,I know that it is possible for mcu which has several ram areas such as RAM_D1, RAM_D2 like STM32H7. STM32l1 has only one RAM. Because I can not divide RAM for some important data. But I saw an STM32L1 example created on KEIL and divided some ad...

HRTIM periodic calibration

I use HSI16 as my clock base which goes through a PLL and then into the HRTIM.Let's say that I adjust HSI16 periodically (every ~10 milliseconds) to track an external high precision clock.Is enabling the DLL calibration (HRTIM_DLLCR:CALEN, CALTRE) en...

Resolved! Using the Joystick Inputs as EXTIs

Hi, Guys...So I got the H757I Eval Board as a gift and am trying to learn MCU Programming with it. I guess STM thinks that: if you have such a high end board, then you should already know what you are doing, because the documentation is poor and they...

STM32 MCUs Products

Forum Posts

Resolved! stm32f1 f4 usart sr register reset value are different,it is print error or it is truely different

Resolved! Hi All. What will happen if try to toggle pin with alternate function. Controller will ignore this command?

STM32H7 ADC + DMA working partially

STM32H7 ADC with DMA not working, Cache disabled

Resolved! How many interrupt by an exception having higher priority can be executed?

Alternatives to STM32L4A6ZG?

How can we do the simple UART for the STM32H745I-DISCOVERY board using the MDK-ARM?

Is it possible to create RAM section for stm32l151rd? (It has only 1 Ram area)

HRTIM periodic calibration

Resolved! Using the Joystick Inputs as EXTIs

DFU Download & Upload only 1024-byte page works

STM32H503 simultaneous ADC and DAC use

Reading STM32U5A5 Rev. ID returns 0x3003 that is n...

LIS2DU12TR accelerometer

STM32H7: Excessive VBAT consumption

STM32U585I-IOT02A: Unable to revert RDP from DC to...