mirror of
https://github.com/hathach/tinyusb.git
synced 2025-03-29 19:20:22 +00:00
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
|
|
* hal_lpc134x.c
|
|
*
|
|
* Created on: Dec 2, 2012
|
|
* Author: hathach
|
|
*/
|
|
|
|
/*
|
|
* Software License Agreement (BSD License)
|
|
* Copyright (c) 2012, hathach (tinyusb.net)
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
|
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
|
* OF SUCH DAMAGE.
|
|
*
|
|
* This file is part of the tiny usb stack.
|
|
*/
|
|
|
|
#include "common/common.h"
|
|
|
|
#ifdef ARCH_LPC134X
|
|
|
|
TUSB_Error_t hal_init()
|
|
{
|
|
// TODO usb abstract later
|
|
/* Enable AHB clock to the USB block and USB RAM. */
|
|
LPC_SYSCON->SYSAHBCLKCTRL |= ((0x1<<14) | (0x1<<27));
|
|
|
|
/* Pull-down is needed, or internally, VBUS will be floating. This is to
|
|
address the wrong status in VBUSDebouncing bit in CmdStatus register. */
|
|
LPC_IOCON->PIO0_3 &= ~0x1F;
|
|
LPC_IOCON->PIO0_3 |= (0x01<<0); /* Secondary function VBUS */
|
|
LPC_IOCON->PIO0_6 &= ~0x07;
|
|
LPC_IOCON->PIO0_6 |= (0x01<<0); /* Secondary function SoftConn */
|
|
|
|
return tERROR_NONE;
|
|
}
|
|
|
|
#endif
|