STM32 MCUs Products

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I want to print out 5 waveforms in 1us time.

I want to print out 5 waveforms during 1us.So, I printed out 5 MHz period PWM from TIM3.We tried to change the duty cycle of TIM3 to zero at interrupt time by running a 1 MHz timer counter on TIM6. However, it was confirmed that TIM6's 1 MHz timer co...

Jkong.1 by Associate II
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Resolved! "DMA is not working on STM32H7 devices" article is wrong

I think the article here:https://community.st.com/s/article/FAQ-DMA-is-not-working-on-STM32H7-devicesis wrong. In solution 3 it invalidate D-cache before reception. This doesn't make sense, it has to invalidate the D-cache after reception.

fb by Associate III
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STM32L010 current consumption higher than expected

Hi,I have a custom board with STM32L010. I used STM32 cubeMX to initialize the GPIO,I2C,SPI,ADC,USART,LPTIM2,CRC,DMA and RTC. Then I de-initialize everything except GPIO and put the controller in sleep mode. The current consumption still is 250 uA af...

ARai by Associate II
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  • 8 replies
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How to use OSPI with STM32L4R9 on custom board?

Hello,As mentioned in Errata sheet of STM32L4xxx, the auto polling mode is not functional. This mode allows an automatic polling fully managed by hardware on the memory status register. The workout in the Errata sheet is to use memory-mapped mode, bu...

Hzhan.2 by Associate II
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  • 1 replies
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Resolved! STM32 with SDRAM: How to connect unused DQMs?

Posted on February 12, 2018 at 19:29I'm about to use a STM32F7 MCU with some x16 SDRAM. Since I don't use byte or unaligned accesses, I disabled the NBL pins, which should otherwise be connected to DQMH/L at the SDRAM.But if I don't use those signal...

Resolved! Reference Manual no TXE in SPIx_CR2 Register?

HiIn your Reference Manual for the STM32F469 at 31.3.11 it says:A DMA access is requested when the TXE or RXNE enable bit in the SPIx_CR2 register is set.But the SPIx_CR2 Register does not have a TXE/RXNE bit, it has a TXEIE/RXNEIE bit which just en-...

PGroe.2 by Associate III
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  • 2 replies
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