RTC
Hello,What is the meaning of RTC for the STM32L431 when supplied with Vbat?Does it mean that the RTC time continues to increase when Vbat is present and VDD=0V?Table 5 of the datasheet permits to hope it ....Best regardsMich
Forum Posts
Delay function not working in following led blinking code?
#include "stm32f0xx.h"void Delay_mS(int mTime);void TIM3_IRQHandler(void);/* Private macro *//* Private variables */int myTick=0;/* Private function prototypes *//* Private functions *//***//**=========================================================...
how i can recover the ip adress in table
#ifdef USE_DHCP ip_addr_set_zero_ip4(&ipaddr ); ip_addr_set_zero_ip4(&netmask); ip_addr_set_zero_ip4(&gw);
STM32F1: DMA read once with USART3 in LIN Bus project
Hi everyone:cherry_blossom:I start in learning LIN bus and I wrote a basic example contain master task and slave task in STM32f103 and communicate with one slave (stm32f429), the problem in stm32f1 MCU in that the DMA read just once! so the first fra...
Resolved! STM32F413 DMA1 peripheral restrictions?
I'm having trouble understanding this from the datasheet and reference.What peripherals are allowable targets for DMA1 memory-to-peripheral transfers?Thanks, Best Regards, DavePS: I tried to use a stream in DMA1 to write to a DMA control register, an...
PMOD interaface sample pin configuration code
Hi Team,Am working with STM32L4R9 Discovery board,In this SOC, PMOD interface is configured to UART in defaultWhen am trying to use this a SPI interface, am facing issueCan you pls share me the sample pin configuration for PMOD connection to configur...
Timer 2 - STM32F427ZIT6
Hello.I try timer 2 on STM32F427 and I have a problem. It ticks too quick.Here is my system clock. I have external crystal: 25MHzClock I want to: 168MHzvoid SystemClock_Config(void) { uint32_t i; LL_FLASH_SetLatency(LL_FLASH_LATENCY_5); if...
What happened to FSMC?
Many of the "older MCUs" like STM32F4xx had an FSMC. I've been thinking about switching to the newer STM32F7xx and have bought a Discovery board for STM32F7508, but there are no references to FSMC in the documentation. Apparently F765/7/8/9 have a "F...
How do I find out when DMA FIFO is empty on STM32F446?
I'm working with the STM32F446 microcontroller and I'm using UART with DMA. The size of my UART packets is contained in the 3rd and the 4th packet bytes and I would like to use FIFO on the receive stream to increase the likelihood for successfully re...
[STM32F411RE] I2S - Keep MCLK (WS) and SCK clocks running.
Hi,I'm using the STM32F411RE device to decode MP3 audio files, i'm sending the decoded data to a MAX98357A amplifier via I2S and DMA, when the SCK signal is removed from the amplifier there's a DC offset at it's output which is causing a distorted au...
