STM32 MCUs Products

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Resolved! Help needed with SWD connection

We are bringing up a new board and having troubles establishing SWD connection, I was reaching out seeking help with this.Target - STM32F091RCICSP - ST-Link/V2IDE - TrueSTUDIOThis is our first use of the ST-Link outside of Nucleo-64 board development...

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Justin1 by Senior
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Question about the Stepper Library STSW-STM32018

Posted on June 13, 2018 at 11:39If i understand correctly, it is only possible to drive a step motor for a certain time, but what i need is to drive a specified number of steps. In extreme case one step and in best case without jitter.I can get out ...

ADC accuracy without internal re-calibration

Hello,I have an application, where I need ADC samples at a fixed rate, if the device is running. So, I can do a ADC self-calibration at start up and while idle, but not while the application is running.The application can run for several hours and th...

T B by Associate II
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Resolved! SPI using DMA on STM32F103 transmits one word too much

On an STM32F103 I configure SPI in 16bit wide mode and set up a DMA transfer to transmit one word:SPI2->CR1 &= ~SPI_CR1_SPE; SPI2->CR2 = 0; SPI2->CR1 = SPI_CR1_SSM | SPI_CR1_SSI | SPI_CR1_DFF | SPI_CR1_SPE | /* Some baud rate flag...

How do I read the RTC on the STM32L433 after power up.

Hi I am using the RTC on the STM32L433 with battery backup. After the date/time been set and running , then either processor reset or repoert the unit the date/time resets to the default time. As it happens even after reset (power not disconnected) ...

How to turn on backup RTC registers on STM32F051R8T6

Hello, i have probem with backup registers, which are powered from VBAT pin on Dicsovery board.First problem was CubeMX init, where i can't choose LSE source, because the value of clock box, was not active. I tried differend things like change txt c...

shybiss by Associate
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Which pins are needed to program a mcu via swd

hello everyone !i'm using a nucleo board (NUCLEO-F401RE) to program a MCU STM32F301 placed on newly fabricated pcb; the mcu has never been programmed.i have disconnected the jumpers to use the CN4 connector. i have just connected the SWCLK (clock sig...

ABoya.14 by Associate II
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  • 8 replies
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Can we continuously read registers using I2c ?

i have interfaced opt8320 optical sensor to stm32f446zet.I hav configured STM as master and Opt8320 as Slave. Can i initiate continuous registers read from sensor using I2c ?Please share suggestions regarding this issue.

Amal Babu by Associate III
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  • 4 replies
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