move mcu cmsis file to /mcu

mcu/lpc43xx/CMSIS_LPC43xx_DriverLib/src/lpc43xx_scu.c

@@ -0,0 +1,106 @@
+/**********************************************************************
+* $Id$		lpc43xx_scu.c		2011-06-02
+*//**
+* @file		lpc43xx_scu.c
+* @brief	Contains all functions support for SCU firmware library on lpc43xx
+* @version	1.0
+* @date		02. June. 2011
+* @author	NXP MCU SW Application Team
+*
+* Copyright(C) 2011, NXP Semiconductor
+* All rights reserved.
+*
+***********************************************************************
+* Software that is described herein is for illustrative purposes only
+* which provides customers with programming information regarding the
+* products. This software is supplied "AS IS" without any warranties.
+* NXP Semiconductors assumes no responsibility or liability for the
+* use of the software, conveys no license or title under any patent,
+* copyright, or mask work right to the product. NXP Semiconductors
+* reserves the right to make changes in the software without
+* notification. NXP Semiconductors also make no representation or
+* warranty that such application will be suitable for the specified
+* use without further testing or modification.
+* Permission to use, copy, modify, and distribute this software and its
+* documentation is hereby granted, under NXP Semiconductors<72>
+* relevant copyright in the software, without fee, provided that it
+* is used in conjunction with NXP Semiconductors microcontrollers.  This
+* copyright, permission, and disclaimer notice must appear in all copies of
+* this code.
+**********************************************************************/
+
+/* Peripheral group ----------------------------------------------------------- */
+/** @addtogroup SCU
+ * @{
+ */
+
+/* Includes ------------------------------------------------------------------- */
+#include "LPC43xx.h"                    /* lpc43xx definitions                */
+#include "lpc_types.h"
+#include "lpc43xx_scu.h"
+
+/* Pin modes
+*  =========
+*  The EPUN and EPD bits in the SFS registers allow the selection of weak on-chip
+*  pull-up or pull-down resistors with a typical value of 50 kOhm for each pin or the
+*  selection of the repeater mode.
+*  The possible on-chip resistor configurations are pull-up enabled, pull-down enabled, or no
+*  pull-up/pull-down. The default value is pull-up enabled.
+*
+*  The repeater mode enables the pull-up resistor if the pin is at a logic HIGH and enables
+*  the pull-down resistor if the pin is at a logic LOW. This causes the pin to retain its last
+*  known state if it is configured as an input and is not driven externally. Repeater mode may
+*  typically be used to prevent a pin from floating (and potentially using significant power if it
+*  floats to an indeterminate state) if it is temporarily not driven.
+*  Repeater mode is enabled when both pull-up and pull-down are enabled.
+*
+*  To be able to receive a digital signal, the input buffer must be enabled through bit EZI in
+*  the pin configuration registers. By default, the input buffer is disabled.
+*  For pads that support both a digital and an analog function, the input buffer must be
+*  disabled before enabling the analog function.
+*
+*  All digital pins support a programmable glitch filter (bit ZIF), which can be switched on or
+*  off. By default, the glitch filter is on. The glitch filter should be disabled for
+*  clocking signals with frequencies higher than 30 MHz.
+*
+*  Normal-drive and high-speed pins support a programmable slew rate (bit EHS) to select
+*  between lower noise and low speed or higher noise and high speed . The typical
+*  frequencies supported are 50 MHz/80 MHz for normal-drive pins and 75 MHz/180 MHz for
+*  high-speed pins.
+*/
+
+/*********************************************************************//**
+ * @brief 		Configure pin function
+ * @param[in]	port	Port number, should be: 0..15
+ * @param[in]	pin	Pin number, should be: 0..31
+ * @param[in]	mode	Pin mode, should be:
+ * 					- MD_PUP	:Pull-up enabled
+ * 					- MD_BUK	:Plain input
+ * 					- MD_PLN	:Repeater mode
+ * 					- MD_PDN	:Pull-down enabled
+ * 					- MD_EHS        :Slew rate
+ * 					- MD_EZI        :Input buffer enable
+ * 					- MD_ZI         :Glitch filter enabled
+ * 					- MD_EHD0       :High drive  8 mA
+ * 					- MD_EHD1       :High drive 14 mA
+ * 					- MD_EHD2       :High drive 20 mA
+ * @param[in]	func 	Function mode, should be:
+ * 					- FUNC0		:Function 0
+ * 					- FUNC1		:Function 1
+ * 					- FUNC2		:Function 2
+ * 					- FUNC3		:Function 3
+ * 					- FUNC4		:Function 4
+ * 					- FUNC5		:Function 5
+ * 					- FUNC6		:Function 6
+ * 					- FUNC7		:Function 7
+ * @return		None
+ **********************************************************************/
+void scu_pinmux(uint8_t port, uint8_t pin, uint8_t mode, uint8_t func)
+{
+  uint32_t * scu_base=(uint32_t*)(LPC_SCU_BASE);
+  scu_base[(PORT_OFFSET*port+PIN_OFFSET*pin)/4]=mode+func;
+} /* scu_pinmux */
+
+/**
+ * @}
+ */