STM32 MCUs Products

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Resolved! Distinguish between 2 µC (STM32L071CZY6 and STM32L071KZU6)

Hello,we have an electronic with two possible µC as footprint on the PCB.STM32L071CZSTM32L071KZInside the layout it was necessary to route two signals to different GPIOs, thereforewe have a difference in the configuration.We want to avoid a #define t...

SJung.1 by Associate II
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  • 4 replies
  • 4 kudos

Resolved! External VREF+ and VREF- for ADC

Hello,I am using NUCLEO-F756ZG. My application is ADC related. I am measuring an analog signal at high sampling rate. Recently, I had a discussion with my team and had an interesting proposal. Our target signal is pretty much guranteed to be within 0...

rakib2023 by Associate III
  • 5710 Views
  • 3 replies
  • 3 kudos

Resolved! overwriting the data registers of the ADC and DAC in STM32G4

On STM32G474, I have a loop where I read ADC values, process them, and write the result to DAC.I am using the dual ADC mode and reading ADC12_COMMON->CDR . I do not care if I read the previous conversion result, in this case, is there a reason to che...

mete by Senior II
  • 1142 Views
  • 1 replies
  • 0 kudos

Resolved! Clock Frequency of L452RE

Hello, I am having a confusion in understanding the Clock Frequencies for STM32L452RE. In the Datasheet its mentioned that "Several prescalers permit to configure the AHB frequency, the high speed APB (APB2) andthe low speed APB (APB1) domains" It al...

Screenshot 2024-01-30 124735.png Screenshot 2024-01-30 123636.png

Resolved! Is I2C HAL library for F4 series thread safe?

In my project, my MCU (F411) uses I2C HAL API routinely to read from a sensor device.When some event happens, my interrupt handler will use I2C API to read from different register from that device; so my question is:Is HAL API thread safe? Although I...

HDaji.1 by Senior
  • 3394 Views
  • 6 replies
  • 2 kudos

SPI Issue - HAL_BUSY (STM32L4)

I've been having issues with getting an SD card working on an STM32L4R5ZI Nucleo board when using essentially the same code (with minor tweaks) without issues on the STM32WB55 Nucleo board.  I've been going through the code of both to determine where...

JayDev by Senior II
  • 6516 Views
  • 4 replies
  • 3 kudos

Resolved! STM32H5 Programming

I have previously used the STM32F103C8T6 is a number of projects and was considering switching to the STM32H503RBT6. My use case is low volume R&D work. With the F1, I would use JTAG for programming but the option isn't available for the H5 in CubeMX...

John_E by Associate
  • 2424 Views
  • 3 replies
  • 2 kudos

Resolved! Internal ADC questions on stm32h750

Hello,I am using an stm32h750. I have an ADC group that includes 4 inputs from GPIO ports and the 3 internal ADCs (VBAT, CPU Temp, Reference Voltage). It's set up with DMA. The conversions run at 150hz.We use a coincell battery voltage as input to VB...