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What are the upper limits on the APB and AHB peripheral clock on a STM32H743 ?According to figure 46 of the reference manual:the limit is 240MHz (or 200Mhz depending on the silicon revision I assume ?).However STMicro HAL example set the APB and AHB ...
Is it possible to flash STM32 Nucleo board then power it with a battery and use it in an application without connecting it to PC?
We are using TIM1 and TIM2 in External Clock Mode 1 with a direct connection to a pin using TI1FP1.What is the maximum counting frequency, and more specifically, minimum pulse width detectable?Thank you.
Hello,I'm using STM32F779NI.I'm trying to enter Standby mode & would like to wake-up through pin wake-up (PC13).Looks like stand-by entry is happening fine (SBF is set post reset) but wake-up pin flag is not set.Please find the code as belowint main(...
We check stm32h7xx_hal_spi.c, and Surprise that the lastest HAL Lib still not support HAL_SPI_DMAStop() and HAL_SPI_DMAResume(). It is very important. We found DMA_SxCR's EN bit out of control in some time. We use DMA to send and receive spi dat...
Do some homework assigned by the lecture but have no direction so ask for some help.I need to write a function DMASpeed() to demosntrate the speed improvement of DMA over a software loop for memory to memory transfers. I include polling DMA for my ho...
Hi, My client has an existing circuit which is logging some data (no information given)Until the logging just has a counter which starts, when a power source is connected.Now they want to add a real clock to the logging entry, and I saw that the STM...
Posted on February 21, 2018 at 13:01Hi;I have a problem.I want to be output pins PC14 and PC 15, so make the registers PWR -> CR = 0x00000100, RCC-> BDCR = 0x00000000. probably LSE ocillator isn't off. thim my code :#include 'stm32f10x.h'#include '...
// using Double-Buffer DMADMA_HandleTypeDef hdma ;StreamBaseAddr = DMA_CalcBaseAndBitshift(&hdma) ; // get the stream base addr if (HAL_DMAEx_MultiBufferStart_IT(&hdma, StreamBaseAddr, Buffer[0], Buffer[1], BUF_SIZE)) { Error_Handler(); ...
