STM32 MCUs Embedded software

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Forum Posts

reading form USB flash drive

Posted on July 20, 2013 at 11:30Hello all, I am a bit new to ARM processors. I want to read images from USB Flash drive attached to STM32F4 Discovery.I used the USB host library +FATFS.While debugging I figured out that the device is not getting enu...

STM32F407VG, ETHERNET and VGA

Posted on January 11, 2014 at 14:22Hi everybody ,I am biginner with STM32F407 VG Discovery. I am working on a project in wich I must interface the STM32F4 controller with 2 sensors, then I must display some information with a screen using VGA protoc...

STM32F1 USB VCP Problems

Posted on December 29, 2013 at 18:56Hi. I'm developing an Open Source project (a JavaScript interpreter) for STM32 microcontrollers (http://www.github.com/espruino/Espruino). One part of this is a bootloader that mimic's ST's serial port bootloader,...

gw by Associate II
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  • 9 replies
  • 0 kudos

USB interrupt storm

Posted on January 06, 2014 at 13:38Hi,I am developing an USB HID device with a STM32F4xx microcontroller, using the ST USB stack version.When there are some data to send to host (PC), the device just puts the data into the buffer endpoint. During th...

ababo by Associate II
  • 933 Views
  • 4 replies
  • 0 kudos

USB FS Device Driver question

Posted on February 14, 2012 at 02:38Hi All I am wondering whether anyone has worked in detail with the USB FS device and can share some insight into it? What I have been doing for some days is working on a driver specifically for the device mode and...

hpipon957 by Associate III
  • 735 Views
  • 1 replies
  • 0 kudos

zero-byte transfer or Zero-Length Packet (ZLP)

Posted on December 31, 2012 at 21:15Hello, I want to hold the completion of a EP0 Control transfer by delaying the sending out of the zero-byte transfer or Zero-Length Packet (ZLP).  Is there a way to do that?  I don't see that the firmware has cont...

jmwhite1 by Associate
  • 387 Views
  • 0 replies
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STM32 DFU software for Linux

Posted on September 10, 2013 at 18:55I was wondering if there is any DFU software compatible with Linux that can be used to upgrade the firmware of an STM32F405 using the USB interface?  Essentially I'm looking a Linux version of the Windows DfuSe s...

regan by Associate
  • 1669 Views
  • 4 replies
  • 0 kudos

embKernel RTOS and middleware

Posted on March 02, 2013 at 00:41Hi,embKernel is a new project which tries to provide an RTOS, TCP/IP, USB, DRIVERS, LIBRARIES,... from a single source. The C++ source code is available at: https://sourceforge.net/projects/embkernel. For the time be...

ramon by Associate II
  • 2484 Views
  • 15 replies
  • 0 kudos

VCP Loopback Example - Not Working with DFU

Posted on December 16, 2013 at 15:15Hi all, hoping to get a couple of pointers here as I'm a little stuck on this one.The just of it: I have a program adapted from the VCP loopback example. It runs beautifully at 0x8000000. When I jump to it (at 0x8...

connect by Associate II
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  • 1 replies
  • 0 kudos