STM32 MCUs Products

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Forum Posts

How do I get the frequency of a timer in STM32F769I?

Posted on January 19, 2018 at 13:38I am working with the STM32F7691I-EVAL board and I would like to determine the frequency of any given timer:GET_TIMER_FREQ(TIMx)The macro/function should be able to determine the frequency regardless of which clock...

arnold_w by Senior II
  • 7983 Views
  • 5 replies
  • 3 kudos

Resolved! Problems with ST-LINK/V2

Hi,I recently bought a ST-LINK/V2 dongle and it didn't work. I checked the insides of it to see that the microcontroller inside wasn't an ST one, but a Geehy clone microcontroller. I bought another, which was not a dongle, it was the larger white ver...

JS8 by Senior
  • 9937 Views
  • 7 replies
  • 1 kudos

Resolved! Interface with external ADC via SPI at 1MS/s

Hi all,I am using the NUCLEO-F446RE with the STM32F446RE. I am trying to interface with an external dual sampling differential ADC: ADS9224R.ADC Timing DiagramThe ADC can provide samples at up to 3M/s. I would be happy to achieve ~0.8M/s sampling.I h...

0693W00000KZlwCQAT.png 0693W00000KZlxPQAT.png
CPurc.1 by Associate II
  • 10573 Views
  • 27 replies
  • 0 kudos

STM32L083 UART receives only one byte

Hi,I am trying to receive data (on STM32L083) via USART1, the way I was used to doing it on STM32L071. Specifically, I used a circular buffer that was continuously written to by DMA - RX. Now, I've ported the code to this L083 and it seems that nothi...

JR2963 by Senior II
  • 2139 Views
  • 8 replies
  • 2 kudos

Maximum analog output voltage from STM32H723ZG

Hi, which is the maximum analog output voltage from the STM32H723ZG? In the datasheet I saw that there are two Op-Amp inside the MCU with gain from 2 to 16. How can I use this Op-Amp? I have to do something about the hardware or I have just to write ...

ECiot.1 by Associate II
  • 2033 Views
  • 5 replies
  • 0 kudos

Resolved! Documentation: USART1/2 and APB2/1 on STM32U5 series

Is USART1 on APB1 (AN5593, tab.17) or APB2 (DS, RM, CubeMX) and USART2 on APB1 (DS, RM, CubeMX) or APB2 (AN5593, tab.17)? Guess, there is an issue in an5593-how-to-use-the-gpdma-for-stm32u5-series-microcontrollers-stmicroelectronics Rv.4 , isn‘t it?

FB1 by Associate II
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  • 2 replies
  • 0 kudos