STM32 MCUs Products

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Resolved! unwanted stop mode wakeup (STM32L052K8)

Posted on June 09, 2017 at 16:29Hello, I am running into a problem while trying to put MCU into a STOP mode. I have tried to comment out all of the 'unnecessary' code but It does not work even if I leave just this in the source:HAL_Init();SystemCloc...

Stm32F7: Wrong default value for FLASH_OPTCR1

Posted on February 27, 2017 at 11:28Hello,Rm431/385 and 410 document the value 0xff7f0080 as default value for FLASH_OPTCR1. The high halfword does not make sense and instrction on a new device shows a value of 0x00400080  that does make sense.Pleas...

HAL USB odd/even issue for OUT endpoints

Posted on January 05, 2016 at 13:50When preparing to receive the data on OUT isochronous endpoint, the HAL sets up the even/odd flag once when you call the PrepareReceive for that specific frame that is active at that moment.However the data may com...

Resolved! How to Set SYSCLK up to 72Mhz

Posted on June 12, 2017 at 17:51HiI created new STM32F103C8 project. I'm using STD Periph library. STM32F103 works with 8Mhz HSE oscillator. But I did not get 72 Mhz. I'm measuirng PLLCLK frequency with MCO.  RCC_MCOConfig(RCC_MCO_PLLCLK_Div2); I wa...

stm32 transmit radio message 433 mhz

Posted on June 12, 2017 at 15:05I have on radio transmitter and one radio receiver like on the picture. What I am trying to do. I send data through USART2 PA2 (pin2) on data transmitter. I connected usb-uart to PA2 (pin2), and looked in terminal wha...

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anton23 by Associate II
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LSE Crystal fail to start

Posted on February 23, 2017 at 11:32Hello everyone,I work on a clock project and have a problem with the LSE crystal. I firstmade my program on a STM32F0Discovery and it worked properly. Then I made a PCB with a STM32F030R8T6 and tried to program it...

Keil assembly for stm32f4

Posted on June 12, 2017 at 18:53 hi everybody i have a assembly program and want to use it in my project . but keil don't compile this directly. i don't have enough knowledge to correct and convert code to keil could compile this code. pl...

eittinfo by Associate II
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STM32F103ZET6 RTC DATE BACKUP NOT WORK.

Posted on June 13, 2017 at 01:36Hello.I have a question about RTC BATTERY BACK UP.I am using RTC. And an external battery.When the power is ON / OFF, the RTC TIME backup function works well.However, RTC_DATE is not backed up.How to solve the problem...

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Disabling GPIO Clocks for AF I/O Fails.

Posted on June 12, 2017 at 18:30The data sheet for the STM32L476xx (DocID025976 Rev 4 states on page 124, footnote 2 of table 40) states:� In order to save the full GPIOx current consumption, the GPIOx clock should be disabled in the RCC when all po...

Resolved! FMC hardfault STM32L471

Posted on June 12, 2017 at 17:12Hello,I tried my LCD with parallel FMC-16bit on the NucleoL496 kit. All is working so far so good.Now I working on my board and this is a L471 processor.The problem is that it crashes when I try to writing to FMC(0x60...

pcu by Associate II
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