STM32 MCUs Products

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Forum Posts

how count of pulse on gpio in stm32l4 at lprun and wake up?

I use 2 board for generate pulse and count pulse.I generate pulses with 4Hz frequency by first board and print number of each pulse also when I press button pulse production stops and then after 20ms products a another pulse(I things micro in second ...

alianvari by Associate III
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IWDG is not working

Hi,In stm32f051, iwdg is not working, I think.After enable iwdg, encounter the while(1); loop , reset is not issued.NRST pin is connected to RC reset circuit.BRPaul

paul0208 by Associate III
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  • 4 replies
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Resolved! Need help understanding performance issue on STM32H743

I'm struggling to understand why I'm seeing a huge performance hit by slightly changing code in a loop. I narrowed down the problem to a manageable code size, and I'm hoping someone here can suggest how to investigate and resolve my issue.I'm using a...

fbar by Senior
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  • 5 replies
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Used SPI 4 for two different interfaces

Hi All,I am using STM32F427ZIT6 MCU for one project. I connected SPI4 for two different interfaces by mistake. Pins 1,4,5 for one interface and pins 64,65,66,67 for one interface.I want both the devices working simultaneously. Is there any solution f...

DKS by Associate II
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  • 1 replies
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DBroo.1 by Associate III
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  • 3 replies
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SD Card Time out STM32F779II

I'm using STM32F779II With a microsd card. That is clocked at 48MHz.When writing to the sdcard as a block, I get HAL_TimeOut, using that function: err = HAL_SD_WriteBlocks(&sd_handle, (uint8_t *)src, block_num, num_blocks, 6000);After writing I wait ...