STM32 MCUs Products

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STM32f4 internal pull down, external pull up

Posted on June 25, 2014 at 11:55Hi,I'm using an STM32F4 and have configured IOs as pwm outputs with internal pull down. These pins have been connected to an input of another chip which has a 5V pull up on its inputs. After some time the processor br...

thommagn by Associate II
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STM32CubeF4 Upgrade broke my project

Posted on June 25, 2014 at 23:56Hello,I have been using version 4.2.0 without problems but I had a DMA problem which I thought that could be fixed in version 4.30I did the upgrade from Check for Updates option. No issues there.However version 4.3.0 ...

gmotta by Associate II
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USB device and CDC class

Posted on June 17, 2014 at 11:31Hi all,I'am using USB device CDC class to communicate datas with a host. But I've a strange problem. (I'am using the STM32F429i Disco platform)The STM32 code create a memory area with 00 01 02 03 04 ... datas and then...

vincent2 by Associate II
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Digital Value to DAC

Posted on June 24, 2014 at 21:06Hello,       I am using the STM32F4 discovery board. I have a project in which I have a timer which generate an interrupts @ 100Khz. In the ISR it stores a new value to a variable.        Now how can I use the DMA to ...

STM32F415 FS USB MSC Implementation

Posted on June 25, 2014 at 19:36Hello all,I am looking for some suggestions or help on locking the Flash ROM during read and writes. I am using STM32Cube with FreeRTOS and have implemented the FS OTG MSC for accessing the Flash ROM on my board (it i...

STM32CubeMX wrong pin label

Posted on June 25, 2014 at 15:47Hi,Using STM32F405RGTx, pin 64 is labelled PDR_ON while datasheet contains VDD.Which one is the correct one ?Thanks.

STM32F334: the new STM32 Digital-Power Microcontroller

Posted on June 25, 2014 at 17:29ST’s new microcontroller http://www.st.com/web/en/catalog/mmc/SC1169/SS1576/LN1820 simplifies transition to energy-efficient digital power supplies by providing all the major power-control functions in a single chip. ...

STM32F401 reference manual

Posted on June 25, 2014 at 15:07I'm sure that this is a really silly question, but is there actually a reference manual for the STM32F401 chips? I can't see one on the design resources page. The STM32F401 Discovery documentation refers to ''RM0344''...

evan2 by Associate II
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problem solved

Posted on June 25, 2014 at 16:07The problem was indeed the reenumeration. Pulling DP low shortly triggers reenumeration, and than Windows recognizes the new mode. Works for both directions, from regular mode to DFU mode and vice versa.

j2399 by Associate II
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