STM32 MCUs Products

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Resolved! Issue with uart USART_ISR_EOBF bit

Hi I have a stm32L433, and setup Uart1 for standard TX and RX with interrupt for both send and receive (9600N81 setup). I don't use any hardware handshake . Within the IRQ routine occasionally the USART_ISR_EOBF bit in the ISR is set , and I am not u...

SSmit.13 by Senior
  • 7136 Views
  • 18 replies
  • 16 kudos

HAL fails to switch VRef from internal to external H743

Changing VRef source would seem simple, but it doesn't work, there is no change in the levels the ADC records. __HAL_RCC_VREF_CLK_ENABLE();HAL_SYSCFG_DisableVREFBUF(); // Disable the Internal Voltage Reference buffer, uses external 3.3vHAL_SYSCFG_VRE...

Robmar by Senior III
  • 1284 Views
  • 1 replies
  • 0 kudos

Resolved! ADC Measurement error in STM32F030C8

Hi ST Community, I am trying to measure system voltage (Lead Acid Battery) using ADC input of STM32F030C8 (PB1). The system voltage can be between 9V and 13.5V () so I am using voltage divider (10k and 1k) to lower the voltage to the 0 - 3.3V range. ...

shydv15_1-1706781800866.png
shydv15 by Associate II
  • 2876 Views
  • 2 replies
  • 0 kudos

Resolved! STM32H743 answers via JTAG but cannot connect

Hi everybody,I'm trying to connect to the STM32H743IIT6 on my custom PCB via JTAG. It seems it responds, I traced it with a logic analyzer (attached). I'm not too knowledgeable with JTAG Protocol, but the 0x5253000 the H7 answers seems not to be the ...

Zw by Associate II
  • 10990 Views
  • 6 replies
  • 0 kudos

Resolved! SD Card

Posted on March 30, 2017 at 18:49Hi, I'm using the cubeF4 to work on FATFS application and i'm searching for a function in FATFS library that can return the content of the SD Card: number of files and their names.  Thank you.

nechi by Associate III
  • 4063 Views
  • 9 replies
  • 0 kudos

Resolved! STM32F217 HSE and Timer Sync

I'm working with an STM32F217 and I have a few timer channels setup as sync clocks to regulators (around 1.5 MHz). I'm checking to make sure my sync lines are actually using HSE as a reference clock by looking at the phase drift between my external o...

PCarn.1 by Associate III
  • 5661 Views
  • 12 replies
  • 1 kudos

Resolved! SIL 2/SIL 3 Microcontroller requirement

hiwe have requirement of SIL2/ SIL3 verified microcontroller which have 24 adc channel, UART(2), ETHERNET, CAN(2),SPI,I2C, 512KB FLASH ETC.kindly suggest us 

Singh_t by Associate II
  • 4047 Views
  • 2 replies
  • 1 kudos