STM32 MCUs products

Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Resolved! Input capture not detecting square wave

I have built a sine wave to square wave circuit and now want to measure its frequency with the STM. I can see on the oscilloscope that the circuit works, however I can detect neither a rising nor a falling edge with the chip. It is not a problem with...

Qwyntex by Associate III
  • 11 replies
  • 0 kudos

Resolved! Bus fault Accessing flash

Hi,MCU- STM32H7I get a busfault exception when I read bank2 flash memory. I can read bank1 with no issues. From the flash register SR2, it shows as ECC double bit error. This is new pcb and I can flash the hexfile to bank1 successfully. Even a Jlink ...

andy_long_0-1708033978473.png andy_long_1-1708034440760.png
andy_long by Associate III
  • 7 replies
  • 2 kudos

Resolved! Debugger hangs at SCB_EnableDCache();

When I'm enabling DMA and run the code, the debugger hangs at "SCB_EnableDCache();" even though the function is correctly excuting when I go step by step. Also as seen in the examples the problem gets solved when using a static declaration  "static v...

STM32H7 UART (DMA with IDLE line) unknown length problem

Hello,I am trying to use UART with DMA with IDLE line for unkown length data reception and I am getting the following error:request for member 'NDTR' in something not a structure or union main.cI coded a couple of years ago a HAL_UART_RxCpltCallback(...

Inigo by Associate II
  • 4 replies
  • 2 kudos

Resolved! LWIP with Ethernet Cable Disconnected

I am using a Nucleo-F429ZI with FreeRtos and LWIP. I am having an issue with LWIP when I start with a disconnected Ethernet Cable and then when I connect it back when the firmware is running.I have a thread with the following code. 1 - The gnetif str...

Resolved! STM32F030F4 with 32K of flash?

Hello! I am experimenting with a STM32F030F4P6. When I connect it to STM32CubeProgrammer via bootoader (UART), there is an info saying the micro has 32Kb of flash, instead of the expected 16Kb for this part.Is it possible that this microcontroller re...

Castelo by Associate II
  • 8 replies
  • 1 kudos


Hi, i am looking for to use FDCAN by using GPDMA . I am using STM32H5 MCU for my application. it is not clear to me how can i use GPDMA with FDCAN. please guide me__PRESENT

Resolved! UART Rx Buffer

Hi Comunity, I am very new to STM and got some problems on serial UART. I can get data from my serial, but my problem is if the data received is less than the length of the array, the next data received doesn't overwrite the first data. How do I fix ...

BMNanda_2-1708073182034.png BMNanda_4-1708073222310.png
BMNanda by Associate
  • 5 replies
  • 1 kudos