STM32 MCUs Products

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The Code Execution Speed Became Slower and Slower

Posted on May 08, 2017 at 10:20Good afternoon,sir:Could you tell me how to solve the question about the code execution speed became slower and slower?When I adjusted the circuit board which the CPU is http://www.kynix.com/uploadfiles/pdf65976/STM32F...

STM studio on high resolution display

Posted on May 08, 2017 at 10:32HiI just bought a new 3840x2160 monitor. Now when I start STM studio to track my variables, all the buttons and , variable names and so on, are incredibly small. I tried all posiible windows settings. Best case I would...

Resolved! stm32f407vg spi1 data register stay 0xff

Posted on May 02, 2017 at 10:53hi, i am new to community.....i have a stm32f4 discovery board with sym32f407cg microcontroller i tried to test spi communucation of the microcontroller with onboard accelerometerbut there is one or more problem that i...

Reading RTC-registers stops DMA transfer on STM32L051

Posted on March 03, 2017 at 07:00I am using ADC with DMA on STM32L051. Conversion time is 50us (20 000 conv. per second). When I read RTC-registers (RTC_SSR, RTC_TR, RTC_DR) sometimes the CPU freezes for approx. 113 us causing ADC overrun and loss o...

STM32F030 - problems with ADC conversion time

Posted on May 06, 2017 at 13:31 Hello, I need help finding a problem. I have been studying this situation for some time and I can not solve it. The MCU used is the http://www.st.com/content/ccc/resource/technical/document/reference_ma...

trasfert data from DCMI to SRAM using DMA

Posted on May 06, 2017 at 16:24Hello,i'm using STM32F4Discovery with the OV7670 camera , i'm trying to get a QVGA picture (320*240) RGB (each pixel is coded in one byte) and then i'll try to send thses picture to a server using SIM900, the probleme ...

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SWD debug failure in High voltage situation

Posted on May 06, 2017 at 05:12Hi,    I am using the chip STM32F405when developing a power converter. It is a buck converter.     When the input voltage is below 25V, I used the keil to debug the chip normally, and monitor the variables.However, whe...

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ADC and DMA issues

Posted on January 20, 2017 at 14:55Hi all,I’m using stm32cube mx to set up a project for my STM32L4 discovery board. Please note that I’ve removed a component and have patched pins PC0, PC1 and PC2 to analog voltages for sampling. I’m using MC...