Forum Posts
[STM32H745XI] - Crystal oscillator failure
There is a problem with the start-up of both HF (25MHz) and RTC(32k) oscillators after a turn-OFF followed by immediate turn-ON (cca couple ms).Oscillators:EPSON FA-238 EPSON FA-135The RTC crystal does not start-up at all and the HF one does show ins...
Problem with GPIO Interrupts and RTOS STM32H753
Hello,I am using an STM32H753 mcu and I working on a project with 8 GPIO Interrupt Pins. I am using RTX RTOS. The problem is that when the interrupt happens the same time with a thread activation. The mcu goes in dummy handler with bus Precision erro...
When STM32G070RB SPI is received, both MOSI and MISO have returned data. The data is the same through the logic analyzer.
This is my test program：uint8_t dev_test=0x00;while(1){HAL_GPIO_WritePin(DW_NSS_GPIO_Port, DW_NSS_Pin, GPIO_PIN_RESET);HAL_SPI_Transmit(&hspi1,&dev_test,1,10);HAL_SPI_Receive(&hspi1,test_R,4,10);HAL_GPIO_WritePin(DW_NSS_GPIO_Port, DW_NSS_Pin, GPIO_PI...
Bus stall when writing/erasing flash on STM32H7
Hello,I am writing & erasing flash during operation, and this seems to cause a bus stall which prohibits all execution from flash during these operations.AN4808 seems to indicate that if you use a dual-bank device you can avoid this by executing out ...
Where can download All available Libries in STM 32 ?
Hello Experts I am beginner in STM32 , I have a old Discovery STM32 board , I want do some project, Now I require some already availabe libraires ,I dont know where can i get it ?Help me to findout ?
Resolved! Which STM32 ICs have Hardware RS485 Flow Control options built-in (DEAT, DEDT, DEM bits)?
The STM32F070RBT has Hardware Flow Control for RS485, with DEAT, DEDT and DEM bits in USART_CR1 and USART_CR3 registers.How do we identify which series of ICs have these features easily? Is it a particular series or type? The STM32F4 IC we are curren...
The HAL_TIM_PeriodElapsedHalfCpltCallback function doesn't generate an interrupt.
That's how it looks: Started the TIM4 interrupt mode:/* USER CODE BEGIN 2 */ HAL_TIM_Base_Start_IT(&htim4); /* USER CODE END 2 */The counter values should be incremented in the middle and in the end of the period, however it doesn't happen. There...
Stop mode current with NUCLEO-32
Hi,I am using the NUCLEO-32 STM32L011 kit and I want to put the MCU in stop mode to measure Idd. Everything seems to be going well but when I measure the current, this is 2.5µA versus 0.5µA announced in the datasheet when the stop mode is activated w...
Interupt uart not working nucleo g431rb
Hi all i am working in interrupt driven uart uart2 which is connected to the usb port in nucleo -g431rb The interrupt handler is not been called I have shared my code any thoughts kindly share.void USART2_IRQHandler(void) { /* USER CODE BEGIN USAR...
