STM32 MCUs Products

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Forum Posts

CAN I read STM32L's RTC counter?

Posted on December 01, 2011 at 04:58Hi,all    I want to use the STM32L's RTC counter as system logic clock as I did using STM32F, but I found no way to do this. My application needs low power and high time resolution(about 100us). Any suggestions wi...

19786345 by Associate
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Software Reset

Posted on November 11, 2011 at 15:25I am developing code for the STM32 under the Keil uvision environment. I want to generate a software reset, i.e. if a certain pin is toggled, I want to reset the entire  processor. Please can someone point me to s...

rwatt by Associate
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Choosing the right evaluation platform for STM32F4

Posted on December 01, 2011 at 05:49I need to purchase an evaluation board for hooking up the ARM M4 Core. I saw 3 options for STM32F4 - Discovery / Evaluation / IAR. I am not targetting a particular application or interested in a particular periphe...

Soft Detach on USB

Posted on December 02, 2011 at 10:57In my design, it is necessary to be able to change serial number by command on the USB... I can change the memory no issue (and save it to data EEPROM and retrieve it) no issue. How do I then detach the device fro...

MikeAtETI by Associate III
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STM32100E-EVAL - Could not get External SRAM working!

Posted on December 02, 2011 at 07:54 Hello, This is my first post here and fairly new to STM I recently purchased the STM32100E-EVAL board for learning more about HD VL devices. But my first step with the board itself is not working! ...

bond by Associate
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SDIO and DMA

Posted on November 20, 2011 at 11:03When using the SDIO with DMA, the source code should look like this:(assume that we refer to a read_single_block command)1.Enable the DataPath state machine;2.Enable the CommandPath state machine;3.Check if comman...

Need Help regarding flasher

Posted on December 01, 2011 at 13:43Hi I am new to field of microcontrollers. I am using STM32W-BRD(MB954) board for evaluation purpose. Details of Operating system: Linux Ubuntu (Instant contiki) on VMware player. When I tried to upload a compile...

STM32L152 EXTI problem

Posted on November 27, 2011 at 19:47Hi all.First of all excuse my englishI am trying to implement the EXTI library but I am doing something wrong.The program starts and send 0 by the uart (at this point all ok), then whait for a external interrupt w...

SPI causing crash on STM32F207 / STM3220G

Posted on November 29, 2011 at 21:07Hi folks,I have an odd problem I've discovered using an STM3320G eval board. I'm using SPI2 connected to PI1/PI2/PI3, and using PI0 as a GPIO-controlled NSS signal. The problem comes in when I transfer a lot of da...

RTOS demo for STM32F4-Discovery

Posted on November 27, 2011 at 11:32Hi, Starting from version 2.3.4 ChibiOS/RT includes full support for the STM32F4 and a full demo for the STM32F4-Discovery board. The demo guide is available here: http://www.chibios.org/dokuwiki/doku.php?id=chibi...