STM32 MCUs products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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SPI too slow

Hi,I am using SPI on STM32H74II MCUFirst I am using a software NSS and not a Hardware NSS because it doesn't work.I need to transmit 1 byte and receive 1 byte, the two commands one after another see the simple code below : RFID_SS_ENABLE;   statu...

JKhal by Associate III
  • 3096 Views
  • 11 replies
  • 1 kudos

Evaluation of commented variables

/* USER CODE END 4 *//*void calculate_DAC_OUTPUT_Freq(void){sysclk = HAL_RCC_GetSysClockFreq();//uint32_t data = SystemCoreClock;pclk1 = HAL_RCC_GetPCLK1Freq();prescaler_bits = (RCC->CFGR & RCC_CFGR_PPRE1) >> RCC_CFGR_PPRE1_Pos;timer_clock = pclk1;if...

vbk22398 by Associate III
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  • 1 replies
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Resolved! Timer Frequency is not predictable

I am using STM32L496ZGT6P. When using DAC along with DMA to generate voltage and frequency of my desired range. But I am unable to get hold of the frequency setting. Sysclk I set is 4Mhz. 20 is prescaler value, 4Mhz/20 = 200000.This is further divide...

vbk22398 by Associate III
  • 213 Views
  • 1 replies
  • 0 kudos

why STM32F303 stop at HAL_TIM_Base_Start_IT(Help)

I found a issue.if the code isHAL_PWR_DisableSleepOnExit();HAL_TIM_Base_Start_IT(&htim2); it will stop at "if (IS_TIM_SLAVE_INSTANCE(htim->Instance))", but i didnt set break point at here.if i change code:HAL_TIM_Base_Start_IT(&htim2);HAL_PWR_Disable...

Zuo by Associate
  • 147 Views
  • 2 replies
  • 1 kudos

Resolved! Replacing STM32F103CBT6(U2) on the STM32F407G-DISC1

The U2 on my STM32F407G-DISC1 is shorted and needs to be replaced.Is the STM32F103CBT6(U2) pre-programmed, or can I just replace it with a new blank STM32F103CBT6 and it gets programmed when you DFU firmware the STM32F407G-DISC1 board.Hardware isn't ...

Resolved! Wrong Data in STM32F4 + UART using LL (low layer) library

Hi,I'm trying to run STM32F429  using LL library to send data periodically.as a start, i'm sending 1 char every 1 sec, but  i'm receive a wrong char (i send 'A', i receive something not clear), and when i call my custom systemClockConfig function, th...

Skane by Associate III
  • 473 Views
  • 13 replies
  • 3 kudos

Is it only me having problems with ST website?

Hello,I often have problems in using ST website. It is often slow or even unusable.For example, today I'm trying to download the CubeMX library for the L0 platform and it failed 5 times, it worked (slowly) only after changing the internet connection ...

Resolved! Trouble with GPIOG on STM32U575ZIT6

Hello everyone,I hope you're doing well. I'm currently working on a project using the STM32U575ZIT6 microcontroller, and I'm facing a peculiar issue with GPIOG.I have successfully manipulated GPIOB and GPIOC for controlling LEDs, but I'm encountering...

OTM98 by Associate II
  • 631 Views
  • 6 replies
  • 5 kudos
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