STM32L0x2 LSE CSS trigger
i'm using STM32L072,how to trigger the LSECSS interrupt?i've got HAL_RCCEx_EnableLSECSS(),HAL_RCCEx_EnableLSECSS_IT(), but the flag RCC_IT_LSECSS never set when LSE error comes up. plz give a clue or the flow of LSECSS
Forum Posts
Cannot output a single 100% duty PWM using DMA
Hello.I have been writing test code for motor control software.The problem is two 100% duty pulses generated when I give only one pulse.Could you tell me the cause and how to solve this problem?The test environment and code are as follows.[Test envir...
Resolved! Hello everyone, I am trying to learn programming stm32f0 discovery board. But I dont want to use HAL or SPL or LL .Is there any way to leran programming stm32 with only using CMSIS ? I can't I find any tutorial or any book for this.
I use a makefile to build a project. And I can flash it eaisly all I need how to use CMSIS to write programs I blinked a LED with that way but I am stuck at that point. I need a book, document, course for that. And STM's programming Manuals are gibr...
Resolved! Refresh IWDG before initializing it , result in Flash PGSERR
I looked at reference manual and didn't see what was causing this.
How to send and receive simultaneously with USART using HAL?
Hi, i did some research and when i do send and receive seperately then everything went smoothly, im using HAL_UART_Receive with RxCpltCallback: if(huart->Instance == USART2 && newDataFromPC == 0) { /*Receive data*/ HAL_UART_Receive_IT(&huart...
STM32H753 writing to Flash
Hi , i am using STM32H753 MCU, it has 2 banks of 8 sector each using HAL_FLASH_PROGRAM function , it is not working, can anyone help me with this issue.int data;StartSectorAddress = 0x080E0000eg:(HAL_FLASH_Program(FLASH_TYPEPROGRAM_FLASHWORD, StartSe...
data retention
i am using stm32h743zt6 controller, what is meant by data retention in flash memory?where this parameter?how we can calculate this?Thanks,
SPI1 DMA hardware nSS control for use with Wiznet W5500 network chip.
Good day everyone.I'm trying to get Wiznet made W5500 working with STM32F030 series, using SPI in DMA mode.Unfortunately, in nSS hardware output mode, SPI bus pulls up nSS line after every transmitted byte (see attached image), while W5500 manual sta...
Hi, I am new to the STM32. The function SystemCoreClockUpdate() in the library file system_stm32f10x.c extracts the PLL multipl. factor PLLMUL[3:0] from the RCC_CFGR register. Question: why the '+2' here: pllmull = ( pllmull >> 18) + 2;
void SystemCoreClockUpdate (void){ uint32_t tmp = 0, pllmull = 0, pllsource = 0; /* Get SYSCLK source -------------------------------------------------------*/ tmp = RCC->CFGR & RCC_CFGR_SWS; switch (tmp) { case 0x00: /* HSI used as system...
Why is my 512 Hz RTC_OUT_CALIB signal "much" less accurate than the 1 Hz signal?
Trying to generate a 512 Hz signal that is synchronous to the LSE.MCU is an STM32L476ZETx.Measuring the signal on RTC_OUT_CALIB with a Keysight tabletop multimeter. (And also with an oscilloscope.)Observation:Setting "RTC_CALIBOUTPUT_1HZ": measured f...
