55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/*
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* hal_lpc43xx.c
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*
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* Created on: Dec 4, 2012
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* Author: hathach
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*/
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/*
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* Software License Agreement (BSD License)
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* Copyright (c) 2013, hathach (tinyusb.net)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the tiny usb stack.
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*/
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#include "common/common.h"
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#if MCU == MCU_LPC43XX
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tusb_error_t hal_init()
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{
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/* Set up USB0 clock */
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CGU_EnableEntity(CGU_CLKSRC_PLL0, DISABLE); /* Disable PLL first */
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ASSERT_INT( CGU_ERROR_SUCCESS, CGU_SetPLL0(), TUSB_ERROR_FAILED); /* the usb core require output clock = 480MHz */
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CGU_EntityConnect(CGU_CLKSRC_XTAL_OSC, CGU_CLKSRC_PLL0);
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CGU_EnableEntity(CGU_CLKSRC_PLL0, ENABLE); /* Enable PLL after all setting is done */
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LPC_CREG->CREG0 &= ~(1<<5); /* Turn on the phy */
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return TUSB_ERROR_NONE;
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}
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#endif
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