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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...

0693W00000FDmMGQA1.gif 0693W00000FDmFZQA1.png 0693W00000FDmFKQA1.png
Javier1 by Principal
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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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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
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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...

0693W00000FDm3jQAD.png
Javier1 by Principal
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  • 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
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  • 7 replies
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Hi. I have been using STM32F1xx for many years. I have a new design that uses two uarts and the ADC peripheral - all using DMA. My question is: is it possible to overload the bus arbiter when there are too many dma transactions going on at the same time?

When both UARTS are transmitting & receiving, my ADC conversions (via DMA) sometimes do not complete. If I double clock speed (which I do not want to do in the product), the problem goes away. I cannot see any issues in my code that would cause this....