STM32 MCUs Products

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Forum Posts

HSI calibration step on STM32F7 and STM32F0.

When I calibrate the HSI frequency of an STM32F7 writing to HSITRIM in RCC_CR register, which is the calibration step? I mean, how much the frequency of HSI change if increasing or decreasing HSITRIM in 1?Doing the same with an STM32F0, ref. manual s...

IHugu by Associate
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i cannot use X-CUBE-MEMS1

https://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-packages/x-cube-mems1.htmli downloaded this software.i also used the gui program. but i have to read under 0.01g so gui...

khyun.8 by Associate
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software reset problem if reset from a task

Posted on January 21, 2014 at 14:29I use NVIC_SystemReset() in order to reset the system.  I am using STM32F103 in my application and RTX rtos. The problem is that if  called NVIC_SystemReset() before the RTOS started, the software reset worked. If ...

huiyan by Associate
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How to calibrate the RTC accuracy?

I'm using the STM32F767ZI MCU and with its RTC function. But my quartz crystal is not accurate. According to the document of the MCU, the accuracy can be calibrated (it said in page 35/255: Digital calibration circuit with 0.95 ppm resolution, to com...

HFeng.2 by Associate
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How to check the SPL version?

I found a version macro in the library but it seems to be wrong. Please see attachment. What should I do to check the SPL version in the code?

TMark.8 by Associate II
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MB1314B AMOLED board schematic

Hello, We are developing a watch-like wearable device with LCD. STM32L4R-Discovery board is a nice reference design for STM32L4R+AMOLED development. It would be also nice to have a schematic for the adapter board MB1314B, which the AMOLED is attached...

Resolved! Trim clock from pulse-per-second GPS signal?

Using STM32F030 / F042. I have a GPS receiver onboard which produces a very accurate pulse-per-second signal (~40ns). I want to use this timing source to keep the system clock, or at least the RTC accurate. The user may wander in and out of GPS recep...

AKrup by Associate II
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Resolved! CAN filtering

How does one define the filter for a CAN A message, when the ID is only 11 bits?If using 16-bit filter, what should be put to the EXTID[17:15]?