STM32 MCUs Products

DMA transfer in interrupt mode

Hi, in the book i am reading there is an example about UART DMA trasnfer in interrupt mode. In this example i don t understand why the author enables the UART related interrupt.I mean it is not the UART to generate the interrupt but the DMA when tras...

X-CUBE-BLE1 on a STM32L072CZYx

Hello,I am currently working on a project using a STM32L072CZYx MCU on a B-L072Z-LRWAN1 cardboard. I soldered a Bluetooth SPBTLE-RF component onto the board in order to use the X-CUBE-BLE1 software with my STM32L072CZYx MCU. So for my project, I have...

Problem with Network Component on STM32H7 (CubeMX) and Keil

Posted on July 13, 2018 at 18:06Hi guys,I have recently started to work with Keil uVision and I am porting my code that I have previously coined with SW4STM32. I bumped into some problems with the network component (I would like to switch from previ...

I use a STM32L151 in a battery application, i have to measure VCC. To do this exactly i try to read the Vrefint-calibration Value, stored at 0x1ff80078/9 (STM32L151 Datasheet pg. 56) But if i try to access to this address via a pointer, i read 0x0.

Memory Dump with STM32CubeIDE shows also 0x0 at this addess. The Errata shows no entry to this problem.uint32_t* ptr = 0x1FF80078;VREFINT_CAL_VAL = *ptr;Is it a typo in the dataheet?

Some questions about using float, snprintf, sprtinf

I would like to advise you, I create software for the STM32L151C8 microcontroller that will control the LCD segment display via the I2C PCF85176 driverDesign:- battery powered- configurable by the attached bluetooth module and keeping configuration v...

What is Actually ADC sampling rate. Suppose i want to trigger the adc at sampling rate of 1Msps. i would trigger the adc using timer update event that would over flow after every 1 usec. But in the parameter setting using cube mx for adc has one option

of sampling time in terms of cycles. what this sampling time corresponds to. I mean is this the actual rate at which the adc samples the input signal. If this is Sampling rate of ADC. then using Timer update event which i set for every 1hmz is relate...

hi this is karthik from india i am using STM32F030C6 MCU i need a suggestion from u i am stuckup calculating AC vrms voltage and DC current at different GPIO pins which has ADC also available as analog mode while i am using multi channel garbage

Is it necessary to test all GPIO for class B compliance?

Hi Is it necessary to test all GPIO(output ports)(STM32G070KB)for class B compliance? writing data to outputs ports make problem in my product.