STM32 MCUs Products

STM32L073CBT6 deep sleep

Hi, I am using STM32L073CBT6. I want my MCU go to the deep sleep and wakeup by internal RTC and one of my GPIO pin. I already read the datasheet but a little bit messy. Im using 16Mhz cpu clock, 8Mhz for LPUART ABP1 clock, 1.Right now, Im stuck on se...

Floating point emulation on DSP-L without floating point arithmetic

Hi,i am currently analyzing the FIR filter example project.Our DSP processor supports only integer numbers. Floating point arithmetic will not be supported. "The SoftFloat library from John Hausser is used to emulate floating point operations on a fi...

How the best method to save user data on flash's STM32F4 series?

Hi everyone,I'm handling project on STM32F411CEUx and I have got a trouble with save my setting into internal flash. When I used STM32F1 series, this issue was very easy because the page size was very small than F4 series. In F1, I could use some RAM...

Hi, i got question about saving multiplies values of reading in function I2C. I got sensors that needs 6 bytes to read before moving to next 6 bytes of data, so i need to save those 6 bytes in array. How to save those data in array? (in my case buffer)

HAL_I2C_Mem_Read(&hi2c1, MAX_READ, FIFO_DATA_REGISTER , I2C_MEMADD_SIZE_8BIT, &buffer, 6 , HAL_MAX_DELAY); while((HAL_I2C_IsDeviceReady(&hi2c1, MAX_READ, 1 , HAL_MAX_DELAY)) != HAL_OK);

ADC of STM32L4R5ZI controller not able to read below 60mV, Vref = 2.8V and ADC resolution is 12bit

Below 60mV controller unable to produce ADC output

HI I'm using stm32f303cbt6, I'm facing issue with RTC . RTC module configured with 24hpurs format Suddenly rtc time (hours) changes to 38hour or 26hours. presently using Hal driver API's with atollic.

STM32L433 Wakeup from Stop only on Wakeup Pin 2

In my application i desire to use the STOP2 Mode in a certain condition to save power. Currently i want to implement a wakeup through a "HIGH" on Wakeup Pin 2 of the MCU. Later i want to implement also a periodic wakeup per RTC. But for now, i want o...

Generate 1KHz sawtooth waveform with amplitude changeable from 1.5V to 3.0V

Dear Sir,I used the STM32L052R8 CPU with 32MHz to try to generate a "1KHz sawtooth waveform with amplitude changeable from 1.5V to 3.0V" with 『HAL_DACEx_TriangleWaveGenerate(&hdac, DAC_CHANNEL_1, DAC_TRIANGLEAMPLITUDE_4095);�? function. But it fail. ...