STM32 MCUs Products

What is the Best oscillator Value of HSE oscillator for STM32L476 such that the power consumption is minimum? How does the peripherals react to it?

I am using STM32L476.In it I am using MSI as a clock source, I want to switch to HSE as Clock Source, I want to know the best oscillator to use (4-48Hz) so that the power consumption is minimum, also I want to know if there would be any change in the...

Using SDRAM and STM32

Hello,My questions are as follows:1. Can I use DDR-SDRAM with FMC or should i use SDRAM only?2. Can I use two SDRAMs and control them with "Chip Select" pin? I want to use this SDRAM. This SDRAM is similar to used on the STM32F779EVAL board, but 512M...

Disable the IWDG when the MCU is stopped in debug mode in a STM32F0

Posted on November 02, 2017 at 09:19Hi all, In a STM32F0 I have configured the IWDG and every time that in debug mode I stop the MCU, then the watchtdog  active and the reset is on.I read the user Manual and some post seen in this community . I use ...

USART3 initialization in stm32f103r8

#include "stm32f10x.h"void usartSetup (void);int SendChar ();int main(){ while(1) { usartSetup(); SendChar(); }}void usartSetup (void) {RCC->APB1ENR = 0x00040000; RCC->APB2ENR = 0x0000000C;  GPIOB->CRH  = 0x00000900; USART3->BRR = 0x340; USART3->CR1 ...

STM32H743 ADC documentation issues

I posted the list below as a reply in: https://community.st.com/s/question/0D50X0000A7WOCGSQ4/where-can-i-find-the-adc-input-impedance-of-stm32h743-in-differential-and-singleended-configurationsbut the thread seems buried and I think these items shou...

STM32L4 SPI interface to Flash Memory Winbond W25Q80DV

I am trying to interface with the Winbond W25Q80DV which is a SPI flash memory chip. I am using the STM32L476VG development board. To test the connection I am first trying to read the manufacturing ID from the chip. Using an oscilloscope I am able t...

I can't read BYTEs from the QUAD SPI using the indirect mode.

I'm using the following code to read from the QUADSPI data register. (uint8_t) * dptr;*dptr++ = QUADSPI->DR;What I get is it reads 4 BYTEs from the FIFO and only returns the lowest Byte in memory pointed to by dptr. The ref manual says you can read B...

SWDIO & SWCLK on DiscoveryVL card - can I use these as GPIO?

I have a DiscoveryVL card (STM32F100RB) and I want to use pins A13 & A14. The manual says I have to unsolder some jumpers on the back to use these as GPIO but then SWD won't be available. I have been using the ST-LINK utility program via a USB cable ...

Is there any controller in stm32 series which has flash program size more than 2MB.

STM32 Beginner: needs help on ADC with STM32F103r8

Hi,I am a beginner for stm32. I am using stm32f103r8 , IAR-ARM IDE.I have attached my celow , this is not working , i am checking it in Proteus 8.8v ( with stm32f103r6). Can anyone help me out with this ?PROGRAM:#include "stm32f10x.h"#include "stm32f...