STM32 MCUs Products

SPI Rx double buffered DMA triggered from a GPIO

Using an STM32H743Zi I'm trying to receive 32bits of data from two SPI interfaces triggered at the same time from an external GPIO at a fairly high rate e.g. ~200kHz. Trying to use double buffered DMA receive.I started by trying to get an external GP...

Why the current measured form the microcontroller(Stm64 Nucleo L433RC- LPSleep mode) differ from the current value written in the datasheet?

I am using STM32L433RC -p microcontroller for current measurement. The current in the microcontroller was measured using X Nucleo LPM01A module.I was doing current measurement for Low Power Mode(Low Power Sleep Mode).The current value given in the da...

How can I use i2c to communicate two STM32F103

I want to i2c to communicate two STM32F103. one of them will be a slave and other will be master. But program is stop on this : void SendI2CByteData (I2C_TypeDef* I2Cx, uint8_t SlaveAddr, uint8_t Data){ __IO uint8_t temp = 0; I2C_GenerateSTART(I2Cx, ...

STM32F412 SPI DMA data bit-shifted

Hi.First of all, the essence of my problem is already described here - https://community.st.com/s/question/0D50X00009XkiXu/spi-dma-data-corruption?t=1567119350874In my case bug happens randomly and not very often. It could be one corrupted transactio...

Is STM32F103C6 can bus terminated?

I have two blackpill boards with STM32F103C6 MCU's on them, I want to explore using can bus between those two units and am wondering if I need to add termination to the cables or if those pins are internally terminated when configured for CAN.All the...

STM32H753ZI MCU ADC VREF+ volatge when it is feed with VDDA volatge of 3.3V?

How measure AC current using CT and STM32F373's SDADC Differential mode?

HiI read AN4207, at the end of document, there is an example using SDADC in Power meter application. I working a personal project same as example, so how differential mode SDADC work? Can it measure negative voltage from Current transformer?Thanks

STM32G0 conterpart for STM32F0's GPIO_SetBits ?

Hello there,I am porting the implementation of a specific component that's currently working together with a STM32F0 to work with a STM32G0.Most of the functions need to be changed from the old implementation to its STM32g0_ll_xyz.h counterpart, but ...