STM32 MCUs Products

Using STMCube and HAL. I setup timer 5 in M4 code. I can not read the value of the timer (CNT reg) from M7 code. Am I able to programaticly change bus matrix to give bothe cores read access to the timer value?

STM32H7 vs STM32MP1 for heterogenous application use case

For one of the heterogenous application use case, we would like run always-on code in Cortex-M4 and high end application, we have two options. either run Cortex-M7 if se select STM32H7 device or Cortex-A7 if select STM32MP1 device. Assuming that both...

Write to external SRAM in four #WE cycles.

Hello!To MCU STM32h743 connected 16-bit SDRAM and 16-bit SRAM. Writin to SRAM uses four #WE cycles in conjunction with BLS0 and BLS1. When write 8 or 16 bits BLS# active only for one #WE cycle, when 32 bits - two cycle and four cycle for 64 bits. I c...

Dual Virtual Com Port not Working one of the port.

I have implemented dual virtual Com port with STM32f767. One of the port works good but another stops after sending two times. Does anyone have had the same issue before. ? 

STM32L4 SDMMC Peripheral RAW Write - Read Problem (Single channel DMA for RX and TX configuration)

I wonder why the SDMMC peripheral is not working with two DMA channels one for RX and one for TX .... As stated as a workaround in the community, I configured one DMA channel for RX and TX for the SDMMC peripheral. However it doesnt work properly. As...

STM32 SWD interface need capacitor to GND?

Hello，I have a project that the 3v3 of STM32G's power​ need to be powered by another switching convertor.So if I want to download program into the STM32G4, I have to power up the switching convertor. But a problem is caused by the switching convertor...

STM32Cube IDE does not reset keybindings

Hi, i tried to create a keybinding on the STM32 Cube IDE however I cannot remove the keybinding anymore.Method:Windows > Preferences > General > Keys > Restore Defaults > OK > Apply > Apply and Close.Opening Keys again shows the new keybindings still...

STM32H757: Trying to read ID (Command 0x9F) HAL_QSPI_Receive locks up.

I'm starting super simple - Just reading the Manufacturer ID. Using a Cypress S25FL256L Flash. My test program:--------void QSPI_TestTask (void * pvParameters){  QSPI_CommandTypeDef sCommand;  uint32_t      MyID = 0;  /* Initialize QuadSPI ----------...

I get stuck in an interrupt after calling SPI transmit.

Hi!I have STM32F373VBTx and I have set pin PD3 as EXTI3 where PD3 call this function when the PD3 gets a falling edge. PD3 is labeled as TS_IRQ in STM32CubeIDE 1.6.1/* Callbacks for external interrupt */ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)...