STM32 MCUs Products

Problems with UART transfer using DMA on STM32L471RGT6

Hi , I am using DMA/serial port transfer with RTS /CTS handshaking to transfer between 490 and 506 bytes from variable dma_buffer. The byte stream is terminated with \r\n\0 . the code is below : while (transmit_complete_flag !=1 ){;} // wait here un...

I am using STM32G0 MCU in a new project. I would like to know if is possible to use a LPTIM in free running mode and read the counter value just like a time stamp. I intented to use the reading for measuring the time between two isrs. BR Gilberto

MPU6050 I2C accelerometer and gyro readings returning odd values with stm32l432kc nucleo board

I have implemented a small I2C driver for stm32l432kc board and tried to use it to read from a couple of MPUs I have first:I can read single WHO_AM_I register correctly giving 0x68 asserted in the debugger I can write to the POWER_MGMT_1 register to ...

RTC of smt32F103C8T6 is not incrementing time seconds while VBAT is connected to a 3v coin cell on VDD cut-off, but it only retains the last value but not increasing.

RTC code is not working properly while VBAT is connected to a 3v coin cell, it only retains time from the last value but not incrementing as the time increases please let us know what's wrong with the codeI'm following this below linkhttps://www.micr...

Setting MCO2 output on STM32G0

Hi,I'm trying to get a clock output at 460.9 Khz on PB2 by setting the MCO2.The PB2 pin is declared as follow:static void MX_GPIO_Init(void){ GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOB_CLK_ENABLE(); /*Config...

STM32- Timer not working as expected,

void External_Clock_Config(){ TIM_ICInitTypeDef TIM_ICInitStructure; TIM_OCInitTypeDef TIM_OCInitStructure; NVIC_InitTypeDef NVIC_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); /...

stm32f0 SPI does not receive data

When data size equal to 3 rx buffer last element is true only others are not. I expected all of them is true data. Why it is working like that ? I examine the result on debug modestatic void Init_SPI2(void) { SPI_InitTypeDef SPI_InitStructure;   ...