STM32 MCUs Embedded software

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Help for SDIO/FatFs Implementation

Posted on April 21, 2016 at 09:49Hello all,   I'm a new user of stm32f4, and I'm trying to write on a 2GB uSD card from Transcend through a 4bits SDIO and FatFs. I'm using the code provided by CubeMX and the example from UM1721. In this manual, it'...

Boot1 pin left floating

Posted on April 19, 2016 at 14:38Hi,I am now working on a design with stm32l, the BOOT1 pin was left floating in this design, Is that a valid configuration? Does BOOT1 have a built in pull down/up resistor, or is it an unstable configuration?Thanks ...

udilevy by Associate II
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STM32L4 ST bootloader I2C mode

Posted on April 19, 2016 at 02:54I am studying the feasibility that using ST ROM bootloader I2C mode to program my application. Here have several questions: 1) does the STM32L4 bootloader supports the I2C? I find a AN2606 doc, but it does not state ...

jiangpen by Associate II
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STM32L0x Boot0

Posted on April 15, 2016 at 13:45Fellows on some STM32L0 (STM32L011x3/4 TSSOP2) Boot0 is also  PB9 on others (STM32L031x4/6 TSSOP2) only Boot0. Is this not allways the same for a STM32 familiy like STM32L0x? Is that correct? I think on we need as mu...

felix2 by Associate II
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STM32F411RE cmsis led don't turn off

Posted on April 10, 2016 at 19:46Hi, I've got problem with code. LED on my board STM32F411RE don't turn off when I'm using cmsis library but in HAL or StdPeriph it works. &sharpinclude ''stm32f4xx.h'' &sharpinclude ''core_cm4.h'' int main(void) {   ...

Real bug in the USB CDC

Posted on September 15, 2014 at 14:39USBD_CDC_TransmitPacket() function contains a bug: it sets the 'transmission in progress' flag AFTER starting the actual transmission, so if the 'transmission done' interrupt happens too early, the flag will be ...

ksa by Associate
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USB on STm32F411RE

Posted on April 07, 2016 at 11:07Hi,I'm trying to handle a printer via USB with my http://www.st.com/web/en/catalog/tools/PF260320 but I'm facing a problem. Indeed, when my board send the first request for the enumeration, it goes in a waiting time ...