STM32 MCUs Products

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Forum Posts

SysTick Interrupt suddenly dissapears

Posted on May 22, 2015 at 08:11 Hi Folks! I have a Problem with the Systick Timer. I use it to handle some periodic functions. The SysTick Timer is configured to 500us. Everything works fine. Now I need a delay functio...

lattner by Associate II
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  • 3 replies
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Cannot connect to the target through SWD.

Posted on May 14, 2015 at 08:50I could not connect the target (STM32F103ZET6) through ST-LINK or j-link(Both emulators are work well on other demo boards). The MCU is powered by at 2.7V. Strangely , I've checked all the connections of the SWD interf...

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kelvin by Associate II
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USB Audio issues with STM32CubeMX and STM32F4-Discovery

Posted on December 15, 2014 at 15:03Hi there,I'm having trouble implementing the Audio Device Class example from the STM32CubeMX tool on a STM32F4-Discovery board. The attached project is the most basic deviation from the template project for the Di...

Another ST Link Can not connect to target error.

Posted on May 21, 2015 at 03:46Hello,I bought a ST link v2 and stm32f103 dev board from ebay (http://www.ebay.com/itm/331348706014?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT) plugged up the st link to the header on the board as such. s...

yoma1993 by Associate II
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  • 7 replies
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PWM 3 channel with shift phase 120 degree

Posted on May 02, 2015 at 16:41Hi.I am working with STM32F4 MCU and looking for help in the next question: I need to do PWM 3 channel with shift phase 120 degree on the start PWM operation. For example, PWM CH1 with 0 degrees, PWM CH2 with 120 degre...

user button interrupt (STM32F091)

Posted on May 21, 2015 at 09:01hello ! I tried to make work an interrupt subroutine by pressing on user button present on the nucleo f091rc... I wrote into ''stm32f0xx_exti.c'' the function EXTI13_Config() as shown in code example : void EXTI13_C...

raphael by Associate II
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  • 2 replies
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Sending counter with USART2 (NUCLEO)

Posted on May 20, 2015 at 18:58Hello. I'm new to microcontrolles and I need to write a program that allows sending counter every 15 miliseconds through USART2. Counter should increase every second. I got the sending part. It's working but I can't ge...

Interfacing LPSDR SDRAM with STM32F427

Posted on May 21, 2015 at 11:52Hi, Is it possible to interface 1,8V LP SDRAM with the STM32F427 without using level conversion while the STM32 is supplied with 3,3V?

fo by Associate II
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  • 1 replies
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can't set reset a Bit (STM32F091 64pins)

Posted on May 04, 2015 at 11:49Hello everyone. My target is STM32F091C I want to send something using SPI and after that make an impulse with a bit of my microcontroller. On my scope I see that I send well the data but the impulse is not generate. ...

raphael by Associate II
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