STM32 MCUs Products

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Forum Posts

Value optimized out when reading from ADC.

Hello everyone,i'm encountering a strange issue, I'm trying to read from the ADC on a STM32f429zi.When my pin is grounded the value of the ADC is not 0 but around 1000. When i try to debug the value it doesn't give me any result but says: <optimized ...

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MReyn by Associate II
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  • 13 replies
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Resolved! SMT32G030 and Unique Device ID is missing.

Is there any plan to provide Unique Device ID registers, together with second calibration point for Temperature Sensor in STM32G030xx?Initially, I expected these data being missing in stm32g030xx.h and DS by simple mistake. I really miss these 2 feat...

STM32H743 spi clock is distorted above 20 Mbps or higher.

Hi all,I interfaced STM32H743 with external ADC(SLAVE) In master receive only mode. STM spi clk is distored seen on CRO above 20Mbps . But clk is fine till 20 mbps.so due to this received ADC values is not correct.but works fine below 20Mbps.​So ...

kgang by Associate II
  • 1028 Views
  • 3 replies
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STM32G431KB strange DAC slew rate behaviour

I assume this issue applies to DACs across all the MCUs but I am testing on a Nucleo-G431KB so I'll stick with the scientific facts.​When I write a 12bit DAC value greater than 4060, the "down" slew rate in buffered output mode drops off a cliff.​For...

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etheory by Senior II
  • 924 Views
  • 2 replies
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POWER SUPPLY

Can anyone please tell me the difference between VDD,VBAT and Voltage regulator in stm32f407vgt6 discovery board

Vtrai by Associate II
  • 726 Views
  • 2 replies
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Why does UART accept the signal without any failure in one conditions and doesn't accept the signal at all in the other conditions?

Hello.I have assembled the device on the STM32L496ZGT6P microcontroller. Along with the other functions, this controller is to poll its UART interface (more precisely, UART4). The device is operated outdoors and at low temperatures, and I have notice...

ATmos.1 by Associate
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  • 2 replies
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Resolved! STM32L4 ADC Clocking Problem?

Hi Everyone.Page 524, section 18.4.16 ADC timing of the STM32L476 Ref manual states.The elapsed time between the start of a conversion and the end of conversion is the sum ofthe configured sampling time plus the successive approximation time dependin...

kvresto by Senior
  • 781 Views
  • 2 replies
  • 0 kudos