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lm4f: Add USB to serial (CDCACM) example

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Implements a USB-to-serial adapter, compliant to the CDCACM subclass.
UART1 is used for the TX/RX lines. Although UART1 also has lines for flow
control, they are not used. Instead, the control lines are implemented in
software via GPIOA.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This commit is contained in:
Alexandru Gagniuc
2013-05-15 00:21:33 -05:00
committed by Piotr Esden-Tempski
parent f5b0aa5638
commit 28f92cce2b
6 changed files with 767 additions and 0 deletions
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27
examples/lm4f/stellaris-ek-lm4f120xl/usb_to_serial_cdcacm/Makefile Normal file
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##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
BINARY = usb_to_serial_cdcacm
LDSCRIPT = ../ek-lm4f120xl.ld
OBJS += uart.o usb_cdcacm.o
include ../../Makefile.include