FreeRTOS-Plus/Demo/FreeRTOS_Plus_UDP_and_CLI_LPC1830_GCC/ThirdParty/CMSISv2p10_LPC18xx_DriverLib/src/lpc18xx_emc.c - nest-detect/1.1.1/freertos - Git at Google

 /**********************************************************************
 * $Id: lpc18xx_emc.c 8765 2011-12-08 00:51:21Z nxp21346 $		lpc18xx_emc.c		2011-12-07
 *//**
 * @file		lpc18xx_emc.c
 * @brief	Contains all functions support for Clock Generation and Control
 * 			firmware library on lpc18xx
 * @version	1.0
 * @date		07. December. 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.
 **********************************************************************/

 #include "LPC18xx.h"
 #include "lpc18xx_emc.h"
 #include "lpc18xx_scu.h"

 #define M32(x)	*((uint32_t *)x)
 #define DELAYCYCLES(ns) (ns / ((1.0 / __EMCHZ) * 1E9))

 void emc_WaitUS(volatile uint32_t us)
 {
 	us *= (SystemCoreClock / 1000000) / 3;
 	while(us--);
 }

 void emc_WaitMS(uint32_t ms)
 {
 	emc_WaitUS(ms * 1000);
 }

 void MemoryPinInit(void)
 {
   /* select correct functions on the GPIOs */

 #if 1
   /* DATA LINES 0..31 > D0..D31 */
   	/* P1_7 - EXTBUS_D0  External memory data line 0 */
     scu_pinmux(0x1,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_7: D0 (function 0) errata */
     scu_pinmux(0x1,  8,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_8: D1 (function 0) errata */
     scu_pinmux(0x1,  9,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_9: D2 (function 0) errata */
     scu_pinmux(0x1,  10, (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_10: D3 (function 0) errata */
     scu_pinmux(0x1,  11, (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_11: D4 (function 0) errata */
     scu_pinmux(0x1,  12, (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_12: D5 (function 0) errata */
     scu_pinmux(0x1,  13, (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_13: D6 (function 0) errata */
     scu_pinmux(0x1,  14, (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_14: D7 (function 0) errata */
     scu_pinmux(0x5,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_4: D8 (function 0) errata */
     scu_pinmux(0x5,  5,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_5: D9 (function 0) errata */
     scu_pinmux(0x5,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_6: D10 (function 0) errata */
     scu_pinmux(0x5,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_7: D11 (function 0) errata */
     scu_pinmux(0x5,  0,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_0: D12 (function 0) errata */
     scu_pinmux(0x5,  1,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_1: D13 (function 0) errata */
     scu_pinmux(0x5,  2,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_2: D14 (function 0) errata */
     scu_pinmux(0x5,  3,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* P5_3: D15 (function 0) errata */
 #if 0
     scu_pinmux(0xD,  2,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_2: D16 (function 0) errata */
     scu_pinmux(0xD,  3,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_3: D17 (function 0) errata */
     scu_pinmux(0xD,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_4: D18 (function 0) errata */
     scu_pinmux(0xD,  5,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_5: D19 (function 0) errata */
     scu_pinmux(0xD,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_6: D20 (function 0) errata */
     scu_pinmux(0xD,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_7: D21 (function 0) errata */
     scu_pinmux(0xD,  8,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_8: D22 (function 0) errata */
     scu_pinmux(0xD,  9,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_9: D23 (function 0) errata */
     scu_pinmux(0xE,  5,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_5: D24 (function 0) errata */
     scu_pinmux(0xE,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_6: D25 (function 0) errata */
     scu_pinmux(0xE,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_7: D26 (function 0) errata */
     scu_pinmux(0xE,  8,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_8: D27 (function 0) errata */
     scu_pinmux(0xE,  9,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_9: D28 (function 0) errata */
     scu_pinmux(0xE, 10,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_10: D29 (function 0) errata */
     scu_pinmux(0xE, 11,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_11: D30 (function 0) errata */
     scu_pinmux(0xE, 12,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_12: D31 (function 0) errata */
 #endif

   /* ADDRESS LINES A0..A11 > A0..A11 */
 	scu_pinmux(0x2,  9,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_9 - EXTBUS_A0  External memory address line 0 */
 	scu_pinmux(0x2, 10,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_10 - EXTBUS_A1  External memory address line 1 */
 	scu_pinmux(0x2, 11,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_11 - EXTBUS_A2  External memory address line 2 */
 	scu_pinmux(0x2, 12,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_12 - EXTBUS_A3  External memory address line 3 */
 	scu_pinmux(0x2, 13,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_13 - EXTBUS_A4  External memory address line 4 */
 	scu_pinmux(0x1,  0,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P1_0 - EXTBUS_A5  External memory address line 5 */
 	scu_pinmux(0x1,  1,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P1_1 - EXTBUS_A6  External memory address line 6 */
 	scu_pinmux(0x1,  2,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P1_2 - EXTBUS_A7  External memory address line 7 */
 	scu_pinmux(0x2,  8,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_8 - EXTBUS_A8  External memory address line 8 */
 	scu_pinmux(0x2,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P2_7 - EXTBUS_A9  External memory address line 9 */
 	scu_pinmux(0x2,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P2_6 - EXTBUS_A10  External memory address line 10 */
 	scu_pinmux(0x2,  2,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P2_2 - EXTBUS_A11  External memory address line 11 */
 	scu_pinmux(0x2,  1,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P2_1 - EXTBUS_A12  External memory address line 12 */
 	scu_pinmux(0x2,  0,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* P2_0 - EXTBUS_A13  External memory address line 13 */
 	scu_pinmux(0x6,  8,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC1);	/* P6_8 - EXTBUS_A14  External memory address line 14 */
 	scu_pinmux(0x6,  7,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC1);	/* P6_7 - EXTBUS_A15  External memory address line 15 */
 	scu_pinmux(0xD, 16,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* PD_16 - EXTBUS_A16  External memory address line 16 */
 	scu_pinmux(0xD, 15,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* PD_15 - EXTBUS_A17  External memory address line 17 */
 	scu_pinmux(0xE,  0,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PE_0 - EXTBUS_A18  External memory address line 18 */
 	scu_pinmux(0xE,  1,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PE_1 - EXTBUS_A19  External memory address line 19 */
 	scu_pinmux(0xE,  2,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PE_2 - EXTBUS_A20  External memory address line 20 */
 	scu_pinmux(0xE,  3,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PE_3 - EXTBUS_A21  External memory address line 21 */
 	scu_pinmux(0xE,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PE_4 - EXTBUS_A22  External memory address line 22 */
 	scu_pinmux(0xA,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* PA_4 - EXTBUS_A23  External memory address line 23 */

   /* BYTE ENABLES */
 	scu_pinmux(0x1,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);	/* P1_4 - EXTBUS_BLS0  LOW active Byte Lane select signal 0 */
 	scu_pinmux(0x6,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC1);	/* P6_6 - EXTBUS_BLS1  LOW active Byte Lane select signal 1 */
 	scu_pinmux(0xD, 13,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* PD_13 - EXTBUS_BLS2  LOW active Byte Lane select signal 2 */
 	scu_pinmux(0xD, 10,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);	/* PD_10 - EXTBUS_BLS3  LOW active Byte Lane select signal 3 */

     scu_pinmux(0x6,  9,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_9: EXTBUS_DYCS0  (function 0) > CS# errata */
     scu_pinmux(0x1,  6,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P1_6: WE (function 0) errata */
     scu_pinmux(0x6,  4,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_4: CAS  (function 0) > CAS# errata */
     scu_pinmux(0x6,  5,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_5: RAS  (function 0) > RAS# errata */

 	LPC_SCU_CLK(0) = 0 + (MD_PLN | MD_EZI | MD_ZI | MD_EHS); /* SFSCLK0: EXTBUS_CLK0  (function 0, from datasheet) > CLK ds */
     LPC_SCU_CLK(1) = 0 + (MD_PLN | MD_EZI | MD_ZI | MD_EHS); /* SFSCLK1: EXTBUS_CLK1  (function 2, from datasheet) */
     LPC_SCU_CLK(2) = 0 + (MD_PLN | MD_EZI | MD_ZI | MD_EHS); /* SFSCLK2: EXTBUS_CLK2  (function 2, from datasheet) */
     LPC_SCU_CLK(3) = 0 + (MD_PLN | MD_EZI | MD_ZI | MD_EHS); /* SFSCLK3: EXTBUS_CLK3  (function 2, from datasheet) */

     scu_pinmux(0x6, 11,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_11: CKEOUT0  (function 0) > CKE errata */
     scu_pinmux(0x6, 12,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_12: DQMOUT0  (function 0) > DQM0 errata */
     scu_pinmux(0x6, 10,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* P6_10: DQMOUT1  (function 0) > DQM1 errata */
     scu_pinmux(0xD,  0,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC2);  /* PD_0: DQMOUT2  (function 2, from datasheet) > DQM2 errata */
     scu_pinmux(0xE, 13,  (MD_PLN | MD_EZI | MD_ZI | MD_EHS), FUNC3);  /* PE_13: DQMOUT3  (function 3, from datasheet) > DQM3 errata */

 	scu_pinmux(	1	,	3	,	MD_PLN_FAST	,	3	);	//OE
 	scu_pinmux(	1	,	4	,	MD_PLN_FAST	,	3	);	//BLS0
 	scu_pinmux(	1	,	5	,	MD_PLN_FAST	,	3	);	//CS0
 	scu_pinmux(	1	,	6	,	MD_PLN_FAST	,	3	);	//WE

 #endif
 }

 void EMCFlashInit(void)
 {
 	// Hitex board SST39VF3201B Flash
 	// Read Cycle Time 70 nS minimum
 	// Chip Enable Access Time 70 ns maximum
 	// Address Access Time 70 ns max
 	// Toe 35 ns max
 	// CE/OE high to inactive output 16 ns

 	/* Set up EMC Controller */
 	LPC_EMC->STATICWAITRD0 = DELAYCYCLES(70)+1;

 	LPC_EMC->STATICWAITPAG0 = DELAYCYCLES(70)+1;


 	LPC_EMC->CONTROL = 0x01;
 	LPC_EMC->STATICCONFIG0 = (1UL<<7) | (1UL);
 	LPC_EMC->STATICWAITOEN0 = DELAYCYCLES(35)+1;

     /*Enable Buffer for External Flash*/
     LPC_EMC->STATICCONFIG0 |= 1<<19;
 }

 /* SDRAM refresh time to 16 clock num */
 #define EMC_SDRAM_REFRESH(freq,time)  \
   (((uint64_t)((uint64_t)time * freq)/16000000000ull)+1)

 void vEMC_InitSRDRAM(uint32_t u32BaseAddr, uint32_t u32Width, uint32_t u32Size, uint32_t u32DataBus, uint32_t u32ColAddrBits)
 {
    // adjust the CCU delaye for EMI (default to zero)
     //LPC_SCU->EMCCLKDELAY = (CLK0_DELAY | (CLKE0_DELAY << 16));
 	// Move all clock delays together
 	LPC_SCU->EMCDELAYCLK = ((CLK0_DELAY)
 						 |  (CLK0_DELAY << 4)
 						 |  (CLK0_DELAY << 8)
 						 |  (CLK0_DELAY << 12));

    /* Initialize EMC to interface with SDRAM */
 	LPC_EMC->CONTROL 			= 0x00000001;   /* Enable the external memory controller */
 	LPC_EMC->CONFIG 			= 0;

 	LPC_EMC->DYNAMICCONFIG0 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14));
 	LPC_EMC->DYNAMICCONFIG2 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14));

     LPC_EMC->DYNAMICRASCAS0 	= (3 << 0) | (3 << 8);      // aem
     LPC_EMC->DYNAMICRASCAS2 	= (3 << 0) | (3 << 8);  // aem

 	LPC_EMC->DYNAMICREADCONFIG	= EMC_COMMAND_DELAYED_STRATEGY;

 	LPC_EMC->DYNAMICRP 			= 1;    // calculated from xls sheet
 	LPC_EMC->DYNAMICRAS 		= 3;
 	LPC_EMC->DYNAMICSREX 		= 5;
 	LPC_EMC->DYNAMICAPR 		= 0;
 	LPC_EMC->DYNAMICDAL 		= 4;
 	LPC_EMC->DYNAMICWR 			= 1;
 	LPC_EMC->DYNAMICRC 			= 5;
 	LPC_EMC->DYNAMICRFC 		= 5;
 	LPC_EMC->DYNAMICXSR 		= 5;
 	LPC_EMC->DYNAMICRRD 		= 1;
 	LPC_EMC->DYNAMICMRD 		= 1;

 	LPC_EMC->DYNAMICCONTROL 	= EMC_CE_ENABLE | EMC_CS_ENABLE | EMC_INIT(EMC_NOP);
 	emc_WaitUS(100);

 	LPC_EMC->DYNAMICCONTROL 	= EMC_CE_ENABLE | EMC_CS_ENABLE | EMC_INIT(EMC_PRECHARGE_ALL);

 	LPC_EMC->DYNAMICREFRESH 	= 2;
 	emc_WaitUS(100);

     LPC_EMC->DYNAMICREFRESH 	= 50;

 	LPC_EMC->DYNAMICCONTROL 	= EMC_CE_ENABLE | EMC_CS_ENABLE | EMC_INIT(EMC_MODE);

 	if(u32DataBus == 0)
 	{
 		/* burst size 8 */
         *((volatile uint32_t *)(u32BaseAddr | ((3 | (3 << 4)) << (u32ColAddrBits + 1))));
 	}
 	else
 	{
 		/* burst size 4 */
 		*((volatile uint32_t *)(u32BaseAddr | ((2UL | (2UL << 4)) << (u32ColAddrBits + 2))));
 	}

 	LPC_EMC->DYNAMICCONTROL 	= 0; // EMC_CE_ENABLE | EMC_CS_ENABLE;
 	LPC_EMC->DYNAMICCONFIG0 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14)) | EMC_B_ENABLE;
 	LPC_EMC->DYNAMICCONFIG1 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14)) | EMC_B_ENABLE;
 	LPC_EMC->DYNAMICCONFIG2 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14)) | EMC_B_ENABLE;
 	LPC_EMC->DYNAMICCONFIG3 	= ((u32Width << 7) | (u32Size << 9) | (1UL << 12) | (u32DataBus << 14)) | EMC_B_ENABLE;
 }
	/**********************************************************************
	* $Id: lpc18xx_emc.c 8765 2011-12-08 00:51:21Z nxp21346 $ lpc18xx_emc.c 2011-12-07
	//*
	* @file lpc18xx_emc.c
	* @brief Contains all functions support for Clock Generation and Control
	* firmware library on lpc18xx
	* @version 1.0
	* @date 07. December. 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.
	**********************************************************************/

	#include "LPC18xx.h"
	#include "lpc18xx_emc.h"
	#include "lpc18xx_scu.h"

	#define M32(x) ((uint32_t )x)
	#define DELAYCYCLES(ns) (ns / ((1.0 / __EMCHZ) * 1E9))

	void emc_WaitUS(volatile uint32_t us)
	{
	us *= (SystemCoreClock / 1000000) / 3;
	while(us--);
	}

	void emc_WaitMS(uint32_t ms)
	{
	emc_WaitUS(ms * 1000);
	}

	void MemoryPinInit(void)
	{
	/* select correct functions on the GPIOs */

	#if 1
	/* DATA LINES 0..31 > D0..D31 */
	/* P1_7 - EXTBUS_D0 External memory data line 0 */
	scu_pinmux(0x1, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_7: D0 (function 0) errata */
	scu_pinmux(0x1, 8, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_8: D1 (function 0) errata */
	scu_pinmux(0x1, 9, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_9: D2 (function 0) errata */
	scu_pinmux(0x1, 10, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_10: D3 (function 0) errata */
	scu_pinmux(0x1, 11, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_11: D4 (function 0) errata */
	scu_pinmux(0x1, 12, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_12: D5 (function 0) errata */
	scu_pinmux(0x1, 13, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_13: D6 (function 0) errata */
	scu_pinmux(0x1, 14, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_14: D7 (function 0) errata */
	scu_pinmux(0x5, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_4: D8 (function 0) errata */
	scu_pinmux(0x5, 5, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_5: D9 (function 0) errata */
	scu_pinmux(0x5, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_6: D10 (function 0) errata */
	scu_pinmux(0x5, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_7: D11 (function 0) errata */
	scu_pinmux(0x5, 0, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_0: D12 (function 0) errata */
	scu_pinmux(0x5, 1, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_1: D13 (function 0) errata */
	scu_pinmux(0x5, 2, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_2: D14 (function 0) errata */
	scu_pinmux(0x5, 3, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P5_3: D15 (function 0) errata */
	#if 0
	scu_pinmux(0xD, 2, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_2: D16 (function 0) errata */
	scu_pinmux(0xD, 3, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_3: D17 (function 0) errata */
	scu_pinmux(0xD, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_4: D18 (function 0) errata */
	scu_pinmux(0xD, 5, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_5: D19 (function 0) errata */
	scu_pinmux(0xD, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_6: D20 (function 0) errata */
	scu_pinmux(0xD, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_7: D21 (function 0) errata */
	scu_pinmux(0xD, 8, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_8: D22 (function 0) errata */
	scu_pinmux(0xD, 9, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_9: D23 (function 0) errata */
	scu_pinmux(0xE, 5, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_5: D24 (function 0) errata */
	scu_pinmux(0xE, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_6: D25 (function 0) errata */
	scu_pinmux(0xE, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_7: D26 (function 0) errata */
	scu_pinmux(0xE, 8, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_8: D27 (function 0) errata */
	scu_pinmux(0xE, 9, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_9: D28 (function 0) errata */
	scu_pinmux(0xE, 10, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_10: D29 (function 0) errata */
	scu_pinmux(0xE, 11, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_11: D30 (function 0) errata */
	scu_pinmux(0xE, 12, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_12: D31 (function 0) errata */
	#endif

	/* ADDRESS LINES A0..A11 > A0..A11 */
	scu_pinmux(0x2, 9, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_9 - EXTBUS_A0 External memory address line 0 */
	scu_pinmux(0x2, 10, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_10 - EXTBUS_A1 External memory address line 1 */
	scu_pinmux(0x2, 11, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_11 - EXTBUS_A2 External memory address line 2 */
	scu_pinmux(0x2, 12, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_12 - EXTBUS_A3 External memory address line 3 */
	scu_pinmux(0x2, 13, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_13 - EXTBUS_A4 External memory address line 4 */
	scu_pinmux(0x1, 0, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P1_0 - EXTBUS_A5 External memory address line 5 */
	scu_pinmux(0x1, 1, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P1_1 - EXTBUS_A6 External memory address line 6 */
	scu_pinmux(0x1, 2, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P1_2 - EXTBUS_A7 External memory address line 7 */
	scu_pinmux(0x2, 8, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_8 - EXTBUS_A8 External memory address line 8 */
	scu_pinmux(0x2, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P2_7 - EXTBUS_A9 External memory address line 9 */
	scu_pinmux(0x2, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P2_6 - EXTBUS_A10 External memory address line 10 */
	scu_pinmux(0x2, 2, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P2_2 - EXTBUS_A11 External memory address line 11 */
	scu_pinmux(0x2, 1, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P2_1 - EXTBUS_A12 External memory address line 12 */
	scu_pinmux(0x2, 0, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* P2_0 - EXTBUS_A13 External memory address line 13 */
	scu_pinmux(0x6, 8, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC1); /* P6_8 - EXTBUS_A14 External memory address line 14 */
	scu_pinmux(0x6, 7, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC1); /* P6_7 - EXTBUS_A15 External memory address line 15 */
	scu_pinmux(0xD, 16, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_16 - EXTBUS_A16 External memory address line 16 */
	scu_pinmux(0xD, 15, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_15 - EXTBUS_A17 External memory address line 17 */
	scu_pinmux(0xE, 0, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_0 - EXTBUS_A18 External memory address line 18 */
	scu_pinmux(0xE, 1, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_1 - EXTBUS_A19 External memory address line 19 */
	scu_pinmux(0xE, 2, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_2 - EXTBUS_A20 External memory address line 20 */
	scu_pinmux(0xE, 3, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_3 - EXTBUS_A21 External memory address line 21 */
	scu_pinmux(0xE, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_4 - EXTBUS_A22 External memory address line 22 */
	scu_pinmux(0xA, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PA_4 - EXTBUS_A23 External memory address line 23 */

	/* BYTE ENABLES */
	scu_pinmux(0x1, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_4 - EXTBUS_BLS0 LOW active Byte Lane select signal 0 */
	scu_pinmux(0x6, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC1); /* P6_6 - EXTBUS_BLS1 LOW active Byte Lane select signal 1 */
	scu_pinmux(0xD, 13, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_13 - EXTBUS_BLS2 LOW active Byte Lane select signal 2 */
	scu_pinmux(0xD, 10, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_10 - EXTBUS_BLS3 LOW active Byte Lane select signal 3 */

	scu_pinmux(0x6, 9, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_9: EXTBUS_DYCS0 (function 0) > CS# errata */
	scu_pinmux(0x1, 6, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P1_6: WE (function 0) errata */
	scu_pinmux(0x6, 4, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_4: CAS (function 0) > CAS# errata */
	scu_pinmux(0x6, 5, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_5: RAS (function 0) > RAS# errata */

	LPC_SCU_CLK(0) = 0 + (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS); /* SFSCLK0: EXTBUS_CLK0 (function 0, from datasheet) > CLK ds */
	LPC_SCU_CLK(1) = 0 + (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS); /* SFSCLK1: EXTBUS_CLK1 (function 2, from datasheet) */
	LPC_SCU_CLK(2) = 0 + (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS); /* SFSCLK2: EXTBUS_CLK2 (function 2, from datasheet) */
	LPC_SCU_CLK(3) = 0 + (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS); /* SFSCLK3: EXTBUS_CLK3 (function 2, from datasheet) */

	scu_pinmux(0x6, 11, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_11: CKEOUT0 (function 0) > CKE errata */
	scu_pinmux(0x6, 12, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_12: DQMOUT0 (function 0) > DQM0 errata */
	scu_pinmux(0x6, 10, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* P6_10: DQMOUT1 (function 0) > DQM1 errata */
	scu_pinmux(0xD, 0, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC2); /* PD_0: DQMOUT2 (function 2, from datasheet) > DQM2 errata */
	scu_pinmux(0xE, 13, (MD_PLN \| MD_EZI \| MD_ZI \| MD_EHS), FUNC3); /* PE_13: DQMOUT3 (function 3, from datasheet) > DQM3 errata */

	scu_pinmux( 1 , 3 , MD_PLN_FAST , 3 ); //OE
	scu_pinmux( 1 , 4 , MD_PLN_FAST , 3 ); //BLS0
	scu_pinmux( 1 , 5 , MD_PLN_FAST , 3 ); //CS0
	scu_pinmux( 1 , 6 , MD_PLN_FAST , 3 ); //WE

	#endif
	}

	void EMCFlashInit(void)
	{
	// Hitex board SST39VF3201B Flash
	// Read Cycle Time 70 nS minimum
	// Chip Enable Access Time 70 ns maximum
	// Address Access Time 70 ns max
	// Toe 35 ns max
	// CE/OE high to inactive output 16 ns

	/* Set up EMC Controller */
	LPC_EMC->STATICWAITRD0 = DELAYCYCLES(70)+1;

	LPC_EMC->STATICWAITPAG0 = DELAYCYCLES(70)+1;


	LPC_EMC->CONTROL = 0x01;
	LPC_EMC->STATICCONFIG0 = (1UL<<7) \| (1UL);
	LPC_EMC->STATICWAITOEN0 = DELAYCYCLES(35)+1;

	/Enable Buffer for External Flash/
	LPC_EMC->STATICCONFIG0 \|= 1<<19;
	}

	/* SDRAM refresh time to 16 clock num */
	#define EMC_SDRAM_REFRESH(freq,time) \
	(((uint64_t)((uint64_t)time * freq)/16000000000ull)+1)

	void vEMC_InitSRDRAM(uint32_t u32BaseAddr, uint32_t u32Width, uint32_t u32Size, uint32_t u32DataBus, uint32_t u32ColAddrBits)
	{
	// adjust the CCU delaye for EMI (default to zero)
	//LPC_SCU->EMCCLKDELAY = (CLK0_DELAY \| (CLKE0_DELAY << 16));
	// Move all clock delays together
	LPC_SCU->EMCDELAYCLK = ((CLK0_DELAY)
	\| (CLK0_DELAY << 4)
	\| (CLK0_DELAY << 8)
	\| (CLK0_DELAY << 12));

	/* Initialize EMC to interface with SDRAM */
	LPC_EMC->CONTROL = 0x00000001; /* Enable the external memory controller */
	LPC_EMC->CONFIG = 0;

	LPC_EMC->DYNAMICCONFIG0 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14));
	LPC_EMC->DYNAMICCONFIG2 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14));

	LPC_EMC->DYNAMICRASCAS0 = (3 << 0) \| (3 << 8); // aem
	LPC_EMC->DYNAMICRASCAS2 = (3 << 0) \| (3 << 8); // aem

	LPC_EMC->DYNAMICREADCONFIG = EMC_COMMAND_DELAYED_STRATEGY;

	LPC_EMC->DYNAMICRP = 1; // calculated from xls sheet
	LPC_EMC->DYNAMICRAS = 3;
	LPC_EMC->DYNAMICSREX = 5;
	LPC_EMC->DYNAMICAPR = 0;
	LPC_EMC->DYNAMICDAL = 4;
	LPC_EMC->DYNAMICWR = 1;
	LPC_EMC->DYNAMICRC = 5;
	LPC_EMC->DYNAMICRFC = 5;
	LPC_EMC->DYNAMICXSR = 5;
	LPC_EMC->DYNAMICRRD = 1;
	LPC_EMC->DYNAMICMRD = 1;

	LPC_EMC->DYNAMICCONTROL = EMC_CE_ENABLE \| EMC_CS_ENABLE \| EMC_INIT(EMC_NOP);
	emc_WaitUS(100);

	LPC_EMC->DYNAMICCONTROL = EMC_CE_ENABLE \| EMC_CS_ENABLE \| EMC_INIT(EMC_PRECHARGE_ALL);

	LPC_EMC->DYNAMICREFRESH = 2;
	emc_WaitUS(100);

	LPC_EMC->DYNAMICREFRESH = 50;

	LPC_EMC->DYNAMICCONTROL = EMC_CE_ENABLE \| EMC_CS_ENABLE \| EMC_INIT(EMC_MODE);

	if(u32DataBus == 0)
	{
	/* burst size 8 */
	((volatile uint32_t )(u32BaseAddr \| ((3 \| (3 << 4)) << (u32ColAddrBits + 1))));
	}
	else
	{
	/* burst size 4 */
	((volatile uint32_t )(u32BaseAddr \| ((2UL \| (2UL << 4)) << (u32ColAddrBits + 2))));
	}

	LPC_EMC->DYNAMICCONTROL = 0; // EMC_CE_ENABLE \| EMC_CS_ENABLE;
	LPC_EMC->DYNAMICCONFIG0 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14)) \| EMC_B_ENABLE;
	LPC_EMC->DYNAMICCONFIG1 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14)) \| EMC_B_ENABLE;
	LPC_EMC->DYNAMICCONFIG2 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14)) \| EMC_B_ENABLE;
	LPC_EMC->DYNAMICCONFIG3 = ((u32Width << 7) \| (u32Size << 9) \| (1UL << 12) \| (u32DataBus << 14)) \| EMC_B_ENABLE;
	}