Skip to content
Branch: master
Find file History
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
..
Failed to load latest commit information.
Makefile
README.txt
app.c
app.h
mios32_config.h
release.sh

README.txt

$Id$

USB Mass Storage Device
===============================================================================
Copyright (C) 2009 Thorsten Klose (tk@midibox.org)
Licensed for personal non-commercial use only.
All other rights reserved.
===============================================================================

Required tools:
  -> http://www.ucapps.de/mio32_c.html

===============================================================================

Required hardware:
   o MBHP_CORE_STM32 or MBHP_CORE_LPC17
   o a SD Card connected to J16 of the core module

Optional hardware:
   o a LCD to display device status

===============================================================================

This application allows to access a connected SD Card via USB by emulating
a mass storage device.

The USB driver will provide this device once a SD Card is connected.

Other USB drivers which were running before (e.g. MIOS32_USB_MIDI 
or MIOS32_USB_COM) will be bypassed to avoid driver conflicts at the
OS side. An enumeration will be triggered as if the USB cable has
been re-connected.

The (optional) LCD displays the connection status.
Once a SD Card has been connected, four characters at the right upper corner 
inform about the status:
  o U: USB device ready (e.g. cable connected)
  o M: SD Card is mounted by OS, resp. is ready for mounting if U not displayed
  o R: Read access to SD Card
  o W: Write access to SD Card


By removing the SD Card the previously active USB device (e.g. MIOS32_USB_MIDI)
will be available again.


This means also: if a new application should be uploaded via USB MIDI, the 
SD Card has to be removed so that the MIDI device is available again.


Please note: the USB access is slow compared to the speed you know from
common SD Card readers or USB sticks, because the device is accessed with
a single serial line and not with a parallel interface. 

However, transfers are fast enough to upload/download data for MIOS32 
applications w/o removing the SD Card from the MBHP_CORE_STM32 module.

===============================================================================
You can’t perform that action at this time.