STM32 MCUs Products

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Forum Posts

[VCP] Virtual Com Port on STM32L4

Posted on August 05, 2015 at 12:59Hello, I am using STM32L4 uC and I'am trying to create a Virtual Com Port. My problem is that computer does not recognize device after running it (I can only see ''Unknown device'' message). Here is how I configure ...

gravell by Associate
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  • 1 replies
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erasing data in flash stm32f3

Posted on July 31, 2015 at 11:05Hello, I was wandering if there is a way to erase only one register in flash memory before writing to it instead of erasing the whole flash page which of course equals to loss of some previous written data? It's not n...

dooz by Associate II
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  • 3 replies
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STM32 and Timer Interrupt flags

Posted on August 05, 2015 at 11:39Greetings. I have a timer3 configured to be 1 ms timer with an interrupt on the overflow: void InitTIM3() {   TIM_TimeBaseInitTypeDef timer;   TIM_TimeBaseStructInit(&timer); // Fill structure fields with default va...

unable to program STM32 using stlink v2

Posted on August 05, 2015 at 10:49helloi was testing the sleep modes in stm32 low clock modes, i guess i have programmed with MCU with 32kHZ clock, now using the stlink v2 i am unable to reprogram the MCUi see no setting in st link v2 software can a...

embedsol by Associate II
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I2C1 inop after 1.1.0 update

Posted on August 05, 2015 at 11:38Hello.Could please someone help me with this issue. After updating firmware package in STM32Cube for STM32F1 to 1.1.0 version I2C module 1 stopped working. But at the same time I2C module 2 works fine as before. Whe...

dimkyy by Associate II
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  • 1 replies
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Nice problem with IAR ARM Compiler

Posted on August 04, 2015 at 09:40 So many of you know i am having hard time to make my STM32F4 program work with STM32F7 micro. Latest finding for me looks just not acceptable. So many people to make programs shorted use function calls ...

STM32F1x(/4x?) SDIO DMA TX FIFO underruns

Posted on August 04, 2015 at 23:32As many others on the forums and the Interwebs have, I recently ran into a problem with SDIO TX FIFO underruns, even when using DMA at the highest priority.  I did figure out a solution though, and thought I would s...