STM32 MCUs Products

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Resolved! STM32U5 Max LSE bypass frequency documentation error

In STM32U575/585 RM0456 Rev 2 from September 2021, I see the following:"11.4.7 LSE clock...External source (LSE bypass)In this mode, an external clock source must be provided. It can have a frequency of up to 1 MHz."However, in STM32U585xx DS13086 R...

Resolved! STM32 ADC limited common mode range

Hello,for a switched capacitor ADC with differential inputs, I would expect no limits on common mode voltage as long as input voltage is in the GND/VDDA range. However STM32 ADCs only allow a small range of common mode voltage around (Vref- VDDa) /2....

TIM Input Capture direct mode GPIO mode

STM32L412KBUx on NUCLEO-L412KB, STM32CubeIDE, Version: 1.8.0.I'm trying to use TIM1 to measure frequency of an external input signal connected to PA8. I'm confused by the choices in CubeIDE. In Pinout & Configuration, TIM1, Channel 1, I selected Inpu...

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CKugl.1 by Senior II
  • 1577 Views
  • 5 replies
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SPI between Nucleo-STM32L476RG and TI CC1200

SPI interface between Nucleo-STM32L476RG and TI CC1200. 1. How to adjust to adjust SCK/Baudrate? 2. How to adjust interval between NSS/CSN state change and start/stop of SCK pulse? I have set up an SPI interface between Nucleo-STM32L476RG and TI CC12...

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EMarv.1 by Associate II
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  • 4 replies
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I2C SDA Pullup Causes STM32G473xx Family to Lockup

I started a new project using an STM32G473CB in the QFN48 package. I've used this and other G4 chips for many other projects and never encountered this issue. This issue occurs with all 3 flash size variants (CB, CC, and CE).I've replicated this issu...

SSpen by Associate II
  • 2663 Views
  • 8 replies
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Resolved! STM32 with PT4115 Dimming

I create a custom board to use PT4115 to control LED. This PT4115 can be control with PWM or external DC on DIM pin. According to spec, the DIM range is 0.3-2.5V.I tested the board by I short the DIM pin to GND and the LED turn off.So it show the boa...

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SEng.1 by Associate II
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  • 6 replies
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Resolved! USART not working on STM32L152C Discovery board

Hello ST community!I'm working with the STM32L152C Discovery board and would like to create a simple USART example. I have developed USART drivers in the past, but this time they are not working with the disco board. It is possible that it has to do ...

JPabl.1 by Senior
  • 841 Views
  • 2 replies
  • 1 kudos