STM32 MCUs Products

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Resolved! High-frequency square wave using timer not possible?

Hi,I'm trying to see what the maximal frequency I can achieve using the STM32F407-discovery board.So far I have found the following:using TIM1 Internal clock (168MHz)Output pin PE9If i put the period at 1000, I get the following result:However if I p...

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MDrac.1 by Associate III
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  • 4 replies
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Resolved! openOCD not reseting my chip :_(

Trying to build my own raspberryPi wireless SWD debugger.(bitbanging SWD, without stlink)I am able to flash and halt the code trough cubeIDE but openOCD is not able to reset the chip, i have to do it manually for now (see gif above).Pesky errors im g...

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Javier1 by Principal
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  • 6 replies
  • 1 kudos

STM32L552: DP TARGETID reads 00000001

Hello,with the same procedure that reads the DP TARGETID fine on STM32F7 and STM32H7, on STM32L5 the TARGETID only reads 00000001 (RM0438, p 2000, DP target identification register (DP_TARGETIDR).Do I do something wrong or is this an errata not yet l...

STM32F439 power down GPIO state

When STM32F439 power supply is dropping from 3.3V to 0V what will be state of GPIO which is configured as Mode output pp, pull up and speed_fast whether it will hold to value mentioned in GPIOx_ODR

PV C by Associate II
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  • 1 replies
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STM32F439 GPIO Initialization state

If we initialize the GPIO pin as Mode output pp, pull up and speed_fast using HAL_GPIO_Init()​ API then what will be the state of the GPIO pin when pin status is not set using HAL_GPIO_WritePin()

PV C by Associate II
  • 512 Views
  • 1 replies
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Resolved! openOCD not halting my chip (srst not working?)

I am trying to flash code in my stm32 via SWD interface with a raspberryPi.(swd is bitbanged no stlink used)With my raspberryPi Zero i followed this tutorial, wired the raspy with my stm32f105 together.My openocd.cfg file looks like:source [find inte...

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Javier1 by Principal
  • 2745 Views
  • 2 replies
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How to fix SDIO error HAL_SD_ERROR_RX_OVERRUN?

Hi, I have issues while using "FATFS R0.12c" over SDIO on my STM32F407. I do SDIO write to file on main loop, but I also have "TIM2/TIM3/CAN1 RX0/CAN1 RX1" interrupts which has other logic (for example TIM2 sends UART message every 100ms to update th...

JBond.1 by Senior
  • 1927 Views
  • 7 replies
  • 1 kudos