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/**************************************************************************/
/*!
@file hal_lpc13uxx.c
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
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. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''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 COPYRIGHT HOLDER 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 tinyusb stack.
*/
/**************************************************************************/
#include "common/common.h"
#include "hal.h"
#if TUSB_CFG_MCU == MCU_LPC13UXX
tusb_error_t hal_init(void)
{
// TODO remove magic number
LPC_SYSCON->SYSAHBCLKCTRL |= ((0x1<<14) | (0x1<<27)); /* Enable AHB clock to the USB block and USB RAM. */
LPC_SYSCON->PDRUNCFG &= ~( BIT_(8) | BIT_(10) ); // enable USB PLL & USB transceiver
/* Pull-down is needed, or internally, VBUS will be floating. This is to
address the wrong status in VBUSDebouncing bit in CmdStatus register. */
// set PIO0_3 as USB_VBUS
LPC_IOCON->PIO0_3 &= ~0x1F;
LPC_IOCON->PIO0_3 |= (0x01<<0) | (1 << 3); /* Secondary function VBUS */
// set PIO0_6 as usb connect
LPC_IOCON->PIO0_6 &= ~0x07;
LPC_IOCON->PIO0_6 |= (0x01<<0); /* Secondary function SoftConn */
return TUSB_ERROR_NONE;
}
void USB_IRQHandler(void)
{
tusb_isr(0);
}
#endif
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