STM32 MCUs Products

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TIMER TRGO

Posted on May 11, 2018 at 19:27Hello, I am using NUCLEO F429ZI. I am using TIM9 with 2 channel,  channel 1 use for input pulse counter, and channel 2 is output channel to generate a timer based pulse. I try to set TIM9 as master timer using TRGO. My...

yang hong by Associate III
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  • 1 replies
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Resolved! IO limit voltage of STM32F303RCT6

Posted on June 29, 2017 at 13:50Hello ST engineers,According to the MCU (STM30F303RCT6) datasheet, the absolute maximum rating of IO's Vin is 4.0V (page 56).In our application, operating voltage is 3.3V (Vdd=Vdda=3.3V), but the input voltage of PA0 ...

Lin Zi by Associate II
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  • 8 replies
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STM32F215 VBAT pin

Posted on May 11, 2018 at 13:28Hi all, I'm using a STM32F215 MCU with a supercapacitor (like XH414HG-IV01E;SEIKO) connected to Vbat through a 0 Ohm resistor in order to backup RTC registers. I attach an image:Well. If I measure the voltage in VBAT p...

0690X0000060B1AQAU.png

timer DMA GPIO input capture with constant frequency

Posted on May 09, 2018 at 08:37 Hello! I need to capture signals on inputs with constant frequency for further investigation. I use the following scheme: set timer frequency needed with update DMA request and capture size for DMA, then get data fro...

EvgenS Po by Associate II
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  • 14 replies
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Error in RM0430 (rev 7)

Posted on May 06, 2018 at 14:15On page 177 the definition of bits 4:0 and 12:8 of RCC_DCKCFGR appear to be incorrect.Should these be PLLI2SDIVQ and PLLSAIDIVQ respectively?

STM32F4 RTC gets bad format values

Posted on May 11, 2018 at 11:16Hi, I'm working with the RTC (LSE source) and I'm getting a bad format value, not a wrong value.I call HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN); and HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN); to get the actu...

How to divide RAM into 2 sections in stm32f4

Posted on May 07, 2018 at 15:37Hi All,Am trying to fix the RAM addresses for new global variables in .data segment. For this, I have divided RAM into sections and by using attribute Am fixing address for newly created global variable. It was looks f...

Resolved! STM32F7 discovery board with on board can transceiver

Posted on May 11, 2018 at 12:55Hello , Which STM32f7 discovery board has on board CAN transceiver ??I checked both these they lack this feature . http://www.st.com/en/evaluation-tools/32f746gdiscovery.html http://www.st.com/en/evaluation-tools/32f76...

RN by Senior
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