STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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STM32 Peripheral library functions

Posted on March 13, 2012 at 11:33Dear all,I would like to know that the API functions in the STM32 Peripheral library are thread-safe or not. I want to use them with the RTOS. Do I have to protect them with the Mutexes of the RTOS?Best Regards.Pornp...

iporboon by Associate
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RTX & __WFI()?

Posted on March 12, 2012 at 13:02Is there any conflict with using sleep mode on the STM32F4 by means of the __WFI() call when using the RTX RTOS?  The only reason I ask is because whenever I call it, it seems to not reduce power nearly as much as wh...

Sourcery CodeBench Lite for STM32F4xx

Posted on March 09, 2012 at 20:17Hi, Is there anyones out there using Sourcery CodeBench Lite for STM32F4xx? We've been using this one for STM32F10x series for a while. There is no problems for us untill we start using floating point instructions on...

npham by Associate II
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UART connection

Posted on March 07, 2012 at 10:13I wanted touse theUART portbut can not findany informationto use this port,the portonly appears toUSART, does anyonecan give mesome tipshow you canconnect thestm32f4discoveryto establishcontact withthis type ofport (...

CUSTOMHID_SIZ_REPORT_DESC larger than 255

Posted on March 09, 2012 at 12:29I have a hid report created using descriptor tool 2.4. The final descriptor size is 289. which appears to be to large (hid not detected). If I cut a few reports out so the size becomes less than 256 it works fine. Is...

gurnett2 by Associate II
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STM32L152VB SPI1 and SPI2

Posted on March 10, 2012 at 14:09I use SPI1 and it work well,when i try to use the SPI2 it dont work. The SPI2 clock is not generated ,i think i don't need addional initialization but i could be wrong . What am i missing here? It's quite frustratin...

SDIO SD, Interrupt or DMA required.

Posted on March 09, 2012 at 20:36Hello,I have a question concerning SDIO driver provided by STM for the STM32F407.  Do you have to use interrupts or DMA?  Can you initialize the a SD Card and write data using:SDIO_SendCommand(&SDIO_CmdInitStructure)...

slagment by Associate II
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Reference power design for USB OTG host AND slave modes

Posted on March 08, 2012 at 16:35Hi Does ST have a reference design for an USB OTG use case where e.g STM32F4xx based board could be used both as a USB host providing 5V to the USB device and as a USB slave powering the whole board from the USB's 5v...

tuomas by Associate II
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STM32VL with LCD

Posted on February 13, 2012 at 15:48Hello, Je suis un d�butant et j'essaye de commander une LCD (16 * 2) avec un STM32VL : afficher et ajuster une horloge (a l'aide des deux boutons B1 et B2 sur la carte) sur le LCD .et je sais pas par quoi je comme...