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Diff: vendor/NXP/LPC4088/cmsis/system_LPC407x_8x_177x_8x.c
- Revision:
- 13:0645d8841f51
- Parent:
- 12:5fa2273de5db
- Child:
- 14:096882eb0961
--- a/vendor/NXP/LPC4088/cmsis/system_LPC407x_8x_177x_8x.c Wed Jul 24 11:11:21 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,571 +0,0 @@
-/**********************************************************************
-* $Id$ system_LPC407x_8x_177x_8x.c 2012-01-16
-*//**
-* @file system_LPC407x_8x_177x_8x.c
-* @brief CMSIS Cortex-M3, M4 Device Peripheral Access Layer Source File
-* for the NXP LPC407x_8x_177x_8x Device Series
-*
-* ARM Limited (ARM) is supplying this software for use with
-* Cortex-M processor based microcontrollers. This file can be
-* freely distributed within development tools that are supporting
-* such ARM based processors.
-*
-* @version 1.2
-* @date 20. June. 2012
-* @author NXP MCU SW Application Team
-*
-* Copyright(C) 2012, 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 <stdint.h>
-#include "LPC407x_8x_177x_8x.h"
-#include "system_LPC407x_8x_177x_8x.h"
-
-#define __CLK_DIV(x,y) (((y) == 0) ? 0: (x)/(y))
-
-/*
-//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
-*/
-/*--------------------- Clock Configuration ----------------------------------
-//
-// <e> Clock Configuration
-// <h> System Controls and Status Register (SCS - address 0x400F C1A0)
-// <o1.0> EMC Shift Control Bit
-// <i> Controls how addresses are output on the EMC address pins for static memories
-// <0=> Static CS addresses match bus width; AD[1] = 0 for 32 bit, AD[0] = 0 for 16+32 bit (Bit 0 is 0)
-// <1=> Static CS addresses start at LSB 0 regardless of memory width (Bit 0 is 1)
-//
-// <o1.1> EMC Reset Disable Bit
-// <i> If 0 (zero), all registers and functions of the EMC are initialized upon any reset condition
-// <i> If 1, EMC is still retained its state through a warm reset
-// <0=> Both EMC resets are asserted when any type of chip reset event occurs (Bit 1 is 0)
-// <1=> Portions of EMC will only be reset by POR or BOR event (Bit 1 is 1)
-//
-// <o1.2> EMC Burst Control
-// <i> Set to 1 to prevent multiple sequential accesses to memory via EMC static memory chip selects
-// <0=> Burst enabled (Bit 2 is 0)
-// <1=> Bust disbled (Bit 2 is 1)
-//
-// <o1.3> MCIPWR Active Level
-// <i> Selects the active level for the SD card interface signal SD_PWR
-// <0=> SD_PWR is active low (inverted output of the SD Card interface block) (Bit 3 is 0)
-// <1=> SD_PWR is active high (follows the output of the SD Card interface block) (Bit 3 is 1)
-//
-// <o1.4> Main Oscillator Range Select
-// <0=> In Range 1 MHz to 20 MHz (Bit 4 is 0)
-// <1=> In Range 15 MHz to 25 MHz (Bit 4 is 1)
-//
-// <o1.5> Main Oscillator enable
-// <i> 0 (zero) means disabled, 1 means enable
-//
-// <o1.6> Main Oscillator status (Read-Only)
-// </h>
-//
-// <h> Clock Source Select Register (CLKSRCSEL - address 0x400F C10C)
-// <o2.0> CLKSRC: Select the clock source for sysclk to PLL0 clock
-// <0=> Internal RC oscillator (Bit 0 is 0)
-// <1=> Main oscillator (Bit 0 is 1)
-// </h>
-//
-// <e3>PLL0 Configuration (Main PLL PLL0CFG - address 0x400F C084)
-// <i> F_in is in the range of 1 MHz to 25 MHz
-// <i> F_cco = (F_in * M * 2 * P) is in range of 156 MHz to 320 MHz
-// <i> PLL out clock = (F_cco / (2 * P)) is in rane of 9.75 MHz to 160 MHz
-//
-// <o4.0..4> MSEL: PLL Multiplier Value
-// <i> M Value
-// <1-32><#-1>
-//
-// <o4.5..6> PSEL: PLL Divider Value
-// <i> P Value
-// <0=> 1
-// <1=> 2
-// <2=> 4
-// <3=> 8
-// </e>
-//
-// <e5>PLL1 Configuration (Alt PLL PLL1CFG - address 0x400F C0A4)
-// <i> F_in is in the range of 1 MHz to 25 MHz
-// <i> F_cco = (F_in * M * 2 * P) is in range of 156 MHz to 320 MHz
-// <i> PLL out clock = (F_cco / (2 * P)) is in rane of 9.75 MHz to 160 MHz
-//
-// <o6.0..4> MSEL: PLL Multiplier Value
-// <i> M Value
-// <1-32><#-1>
-//
-// <o6.5..6> PSEL: PLL Divider Value
-// <i> P Value
-// <0=> 1
-// <1=> 2
-// <2=> 4
-// <3=> 8
-// </e>
-//
-// <h> CPU Clock Selection Register (CCLKSEL - address 0x400F C104)
-// <o7.0..4> CCLKDIV: Select the value for divider of CPU clock (CCLK)
-// <i> 0: The divider is turned off. No clock will be provided to the CPU
-// <i> n: The input clock is divided by n to produce the CPU clock
-// <0-31>
-//
-// <o7.8> CCLKSEL: Select the input to the divider of CPU clock
-// <0=> sysclk clock is used
-// <1=> Main PLL0 clock is used
-// </h>
-//
-// <h> USB Clock Selection Register (USBCLKSEL - 0x400F C108)
-// <o8.0..4> USBDIV: USB clock (source PLL0) divider selection
-// <0=> Divider is off and no clock provides to USB subsystem
-// <4=> Divider value is 4 (The source clock is divided by 4)
-// <6=> Divider value is 6 (The source clock is divided by 6)
-//
-// <o8.8..9> USBSEL: Select the source for USB clock divider
-// <i> When CPU clock is selected, the USB can be accessed
-// <i> by software but cannot perform USB functions
-// <0=> sysclk clock (the clock input to PLL0)
-// <1=> The clock output from PLL0
-// <2=> The clock output from PLL1
-// </h>
-//
-// <h> EMC Clock Selection Register (EMCCLKSEL - address 0x400F C100)
-// <o9.0> EMCDIV: Set the divider for EMC clock
-// <0=> Divider value is 1
-// <1=> Divider value is 2 (EMC clock is equal a half of input clock)
-// </h>
-//
-// <h> Peripheral Clock Selection Register (PCLKSEL - address 0x400F C1A8)
-// <o10.0..4> PCLKDIV: APB Peripheral clock divider
-// <i> 0: The divider is turned off. No clock will be provided to APB peripherals
-// <i> n: The input clock is divided by n to produce the APB peripheral clock
-// <0-31>
-// </h>
-//
-// <h> SPIFI Clock Selection Register (SPIFICLKSEL - address 0x400F C1B4)
-// <o11.0..4> SPIFIDIV: Set the divider for SPIFI clock
-// <i> 0: The divider is turned off. No clock will be provided to the SPIFI
-// <i> n: The input clock is divided by n to produce the SPIFI clock
-// <0-31>
-//
-// <o11.8..9> SPIFISEL: Select the input clock for SPIFI clock divider
-// <0=> sysclk clock (the clock input to PLL0)
-// <1=> The clock output from PLL0
-// <2=> The clock output from PLL1
-// </h>
-//
-// <h> Power Control for Peripherals Register (PCONP - address 0x400F C1C8)
-// <o12.0> PCLCD: LCD controller power/clock enable (bit 0)
-// <o12.1> PCTIM0: Timer/Counter 0 power/clock enable (bit 1)
-// <o12.2> PCTIM1: Timer/Counter 1 power/clock enable (bit 2)
-// <o12.3> PCUART0: UART 0 power/clock enable (bit 3)
-// <o12.4> PCUART1: UART 1 power/clock enable (bit 4)
-// <o12.5> PCPWM0: PWM0 power/clock enable (bit 5)
-// <o12.6> PCPWM1: PWM1 power/clock enable (bit 6)
-// <o12.7> PCI2C0: I2C 0 interface power/clock enable (bit 7)
-// <o12.8> PCUART4: UART 4 power/clock enable (bit 8)
-// <o12.9> PCRTC: RTC and Event Recorder power/clock enable (bit 9)
-// <o12.10> PCSSP1: SSP 1 interface power/clock enable (bit 10)
-// <o12.11> PCEMC: External Memory Controller power/clock enable (bit 11)
-// <o12.12> PCADC: A/D converter power/clock enable (bit 12)
-// <o12.13> PCCAN1: CAN controller 1 power/clock enable (bit 13)
-// <o12.14> PCCAN2: CAN controller 2 power/clock enable (bit 14)
-// <o12.15> PCGPIO: IOCON, GPIO, and GPIO interrupts power/clock enable (bit 15)
-// <o12.17> PCMCPWM: Motor Control PWM power/clock enable (bit 17)
-// <o12.18> PCQEI: Quadrature encoder interface power/clock enable (bit 18)
-// <o12.19> PCI2C1: I2C 1 interface power/clock enable (bit 19)
-// <o12.20> PCSSP2: SSP 2 interface power/clock enable (bit 20)
-// <o12.21> PCSSP0: SSP 0 interface power/clock enable (bit 21)
-// <o12.22> PCTIM2: Timer 2 power/clock enable (bit 22)
-// <o12.23> PCTIM3: Timer 3 power/clock enable (bit 23)
-// <o12.24> PCUART2: UART 2 power/clock enable (bit 24)
-// <o12.25> PCUART3: UART 3 power/clock enable (bit 25)
-// <o12.26> PCI2C2: I2C 2 interface power/clock enable (bit 26)
-// <o12.27> PCI2S: I2S interface power/clock enable (bit 27)
-// <o12.28> PCSDC: SD Card interface power/clock enable (bit 28)
-// <o12.29> PCGPDMA: GPDMA function power/clock enable (bit 29)
-// <o12.30> PCENET: Ethernet block power/clock enable (bit 30)
-// <o12.31> PCUSB: USB interface power/clock enable (bit 31)
-// </h>
-//
-// <h> Clock Output Configuration Register (CLKOUTCFG)
-// <o13.0..3> CLKOUTSEL: Clock Source for CLKOUT Selection
-// <0=> CPU clock
-// <1=> Main Oscillator
-// <2=> Internal RC Oscillator
-// <3=> USB clock
-// <4=> RTC Oscillator
-// <5=> unused
-// <6=> Watchdog Oscillator
-//
-// <o13.4..7> CLKOUTDIV: Output Clock Divider
-// <1-16><#-1>
-//
-// <o13.8> CLKOUT_EN: CLKOUT enable
-// </h>
-//
-// </e>
-*/
-
-#define CLOCK_SETUP 1
-#define SCS_Val 0x00000020
-#define CLKSRCSEL_Val 0x00000001
-#define PLL0_SETUP 1
-#define PLL0CFG_Val 0x00000009
-#define PLL1_SETUP 1
-#define PLL1CFG_Val 0x00000023
-#define CCLKSEL_Val 0x00000101
-#define USBCLKSEL_Val 0x00000201
-#define EMCCLKSEL_Val 0x00000001
-#define PCLKSEL_Val 0x00000002
-#define SPIFICLKSEL_Val 0x00000002
-#define PCONP_Val 0x042887DE
-#define CLKOUTCFG_Val 0x00000100
-
-#ifdef CORE_M4
-#define LPC_CPACR 0xE000ED88
-
-#define SCB_MVFR0 0xE000EF40
-#define SCB_MVFR0_RESET 0x10110021
-
-#define SCB_MVFR1 0xE000EF44
-#define SCB_MVFR1_RESET 0x11000011
-#endif
-
-
-/*--------------------- Flash Accelerator Configuration ----------------------
-//
-// <e> Flash Accelerator Configuration register (FLASHCFG - address 0x400F C000)
-// <o1.12..15> FLASHTIM: Flash Access Time
-// <0=> 1 CPU clock (for CPU clock up to 20 MHz)
-// <1=> 2 CPU clocks (for CPU clock up to 40 MHz)
-// <2=> 3 CPU clocks (for CPU clock up to 60 MHz)
-// <3=> 4 CPU clocks (for CPU clock up to 80 MHz)
-// <4=> 5 CPU clocks (for CPU clock up to 100 MHz)
-// <5=> 6 CPU clocks (for any CPU clock)
-// </e>
-*/
-
-#define FLASH_SETUP 1
-#define FLASHCFG_Val 0x00005000
-
-/*----------------------------------------------------------------------------
- Check the register settings
- *----------------------------------------------------------------------------*/
-#define CHECK_RANGE(val, min, max) ((val < min) || (val > max))
-#define CHECK_RSVD(val, mask) (val & mask)
-
-/* Clock Configuration -------------------------------------------------------*/
-#if (CHECK_RSVD((SCS_Val), ~0x0000003F))
- #error "SCS: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RANGE((CLKSRCSEL_Val), 0, 1))
- #error "CLKSRCSEL: Value out of range!"
-#endif
-
-#if (CHECK_RSVD((PLL0CFG_Val), ~0x0000007F))
- #error "PLL0CFG: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((PLL1CFG_Val), ~0x0000007F))
- #error "PLL1CFG: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((CCLKSEL_Val), ~0x0000011F))
- #error "CCLKSEL: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((USBCLKSEL_Val), ~0x0000031F))
- #error "USBCLKSEL: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((EMCCLKSEL_Val), ~0x00000001))
- #error "EMCCLKSEL: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((PCLKSEL_Val), ~0x0000001F))
- #error "PCLKSEL: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((PCONP_Val), ~0xFFFEFFFF))
- #error "PCONP: Invalid values of reserved bits!"
-#endif
-
-#if (CHECK_RSVD((CLKOUTCFG_Val), ~0x000001FF))
- #error "CLKOUTCFG: Invalid values of reserved bits!"
-#endif
-
-/* Flash Accelerator Configuration -------------------------------------------*/
-#if (CHECK_RSVD((FLASHCFG_Val), ~0x0000F000))
- #warning "FLASHCFG: Invalid values of reserved bits!"
-#endif
-
-
-/*----------------------------------------------------------------------------
- DEFINES
- *----------------------------------------------------------------------------*/
-/* pll_out_clk = F_cco / (2 � P)
- F_cco = pll_in_clk � M � 2 � P */
-#define __M ((PLL0CFG_Val & 0x1F) + 1)
-#define __PLL0_CLK(__F_IN) (__F_IN * __M)
-#define __CCLK_DIV (CCLKSEL_Val & 0x1F)
-#define __PCLK_DIV (PCLKSEL_Val & 0x1F)
-#define __ECLK_DIV ((EMCCLKSEL_Val & 0x01) + 1)
-
-/* Determine core clock frequency according to settings */
-#if (CLOCK_SETUP) /* Clock Setup */
-
- #if ((CLKSRCSEL_Val & 0x01) == 1) && ((SCS_Val & 0x20)== 0)
- #error "Main Oscillator is selected as clock source but is not enabled!"
- #endif
-
- #if ((CCLKSEL_Val & 0x100) == 0x100) && (PLL0_SETUP == 0)
- #error "Main PLL is selected as clock source but is not enabled!"
- #endif
-
- #if ((CCLKSEL_Val & 0x100) == 0) /* cclk = sysclk */
- #if ((CLKSRCSEL_Val & 0x01) == 0) /* sysclk = irc_clk */
- #define __CORE_CLK (IRC_OSC / __CCLK_DIV)
- #define __PER_CLK (IRC_OSC/ __PCLK_DIV)
- #define __EMC_CLK (__CORE_CLK/ __ECLK_DIV)
- #else /* sysclk = osc_clk */
- #define __CORE_CLK (OSC_CLK / __CCLK_DIV)
- #define __PER_CLK (OSC_CLK/ __PCLK_DIV)
- #define __EMC_CLK (__CORE_CLK/ __ECLK_DIV)
- #endif
- #else /* cclk = pll_clk */
- #if ((CLKSRCSEL_Val & 0x01) == 0) /* sysclk = irc_clk */
- #define __CORE_CLK (__PLL0_CLK(IRC_OSC) / __CCLK_DIV)
- #define __PER_CLK (__PLL0_CLK(IRC_OSC) / __PCLK_DIV)
- #define __EMC_CLK (__CORE_CLK / __ECLK_DIV)
- #else /* sysclk = osc_clk */
- #define __CORE_CLK (__PLL0_CLK(OSC_CLK) / __CCLK_DIV)
- #define __PER_CLK (__PLL0_CLK(OSC_CLK) / __PCLK_DIV)
- #define __EMC_CLK (__CORE_CLK / __ECLK_DIV)
- #endif
- #endif
-
-#else
- #define __CORE_CLK (IRC_OSC)
- #define __PER_CLK (IRC_OSC)
- #define __EMC_CLK (__CORE_CLK)
-#endif
-
-/*----------------------------------------------------------------------------
- Clock Variable definitions
- *----------------------------------------------------------------------------*/
-uint32_t SystemCoreClock = __CORE_CLK;/*!< System Clock Frequency (Core Clock)*/
-uint32_t PeripheralClock = __PER_CLK; /*!< Peripheral Clock Frequency (Pclk) */
-uint32_t EMCClock = __EMC_CLK; /*!< EMC Clock Frequency */
-uint32_t USBClock = (48000000UL); /*!< USB Clock Frequency - this value will
- be updated after call SystemCoreClockUpdate, should be 48MHz*/
-
-
-/*----------------------------------------------------------------------------
- Clock functions
- *----------------------------------------------------------------------------*/
-void SystemCoreClockUpdate (void) /* Get Core Clock Frequency */
-{
- /* Determine clock frequency according to clock register values */
- if ((LPC_SC->CCLKSEL &0x100) == 0) { /* cclk = sysclk */
- if ((LPC_SC->CLKSRCSEL & 0x01) == 0) { /* sysclk = irc_clk */
- SystemCoreClock = __CLK_DIV(IRC_OSC , (LPC_SC->CCLKSEL & 0x1F));
- PeripheralClock = __CLK_DIV(IRC_OSC , (LPC_SC->PCLKSEL & 0x1F));
- EMCClock = (SystemCoreClock / ((LPC_SC->EMCCLKSEL & 0x01)+1));
- }
- else { /* sysclk = osc_clk */
- if ((LPC_SC->SCS & 0x40) == 0) {
- SystemCoreClock = 0; /* this should never happen! */
- PeripheralClock = 0;
- EMCClock = 0;
- }
- else {
- SystemCoreClock = __CLK_DIV(OSC_CLK , (LPC_SC->CCLKSEL & 0x1F));
- PeripheralClock = __CLK_DIV(OSC_CLK , (LPC_SC->PCLKSEL & 0x1F));
- EMCClock = (SystemCoreClock / ((LPC_SC->EMCCLKSEL & 0x01)+1));
- }
- }
- }
- else { /* cclk = pll_clk */
- if ((LPC_SC->PLL0STAT & 0x100) == 0) { /* PLL0 not enabled */
- SystemCoreClock = 0; /* this should never happen! */
- PeripheralClock = 0;
- EMCClock = 0;
- }
- else {
- if ((LPC_SC->CLKSRCSEL & 0x01) == 0) { /* sysclk = irc_clk */
- uint8_t mul = ((LPC_SC->PLL0STAT & 0x1F) + 1);
- uint8_t cpu_div = (LPC_SC->CCLKSEL & 0x1F);
- uint8_t per_div = (LPC_SC->PCLKSEL & 0x1F);
- uint8_t emc_div = (LPC_SC->EMCCLKSEL & 0x01)+1;
- SystemCoreClock = __CLK_DIV(IRC_OSC * mul , cpu_div);
- PeripheralClock = __CLK_DIV(IRC_OSC * mul , per_div);
- EMCClock = SystemCoreClock / emc_div;
- }
- else { /* sysclk = osc_clk */
- if ((LPC_SC->SCS & 0x40) == 0) {
- SystemCoreClock = 0; /* this should never happen! */
- PeripheralClock = 0;
- EMCClock = 0;
- }
- else {
- uint8_t mul = ((LPC_SC->PLL0STAT & 0x1F) + 1);
- uint8_t cpu_div = (LPC_SC->CCLKSEL & 0x1F);
- uint8_t per_div = (LPC_SC->PCLKSEL & 0x1F);
- uint8_t emc_div = (LPC_SC->EMCCLKSEL & 0x01)+1;
- SystemCoreClock = __CLK_DIV(OSC_CLK * mul , cpu_div);
- PeripheralClock = __CLK_DIV(OSC_CLK * mul , per_div);
- EMCClock = SystemCoreClock / emc_div;
- }
- }
- }
- }
- /* ---update USBClock------------------*/
- if(LPC_SC->USBCLKSEL & (0x01<<8))//Use PLL0 as the input to the USB clock divider
- {
- switch (LPC_SC->USBCLKSEL & 0x1F)
- {
- case 0:
- USBClock = 0; //no clock will be provided to the USB subsystem
- break;
- case 4:
- case 6:
- {
- uint8_t mul = ((LPC_SC->PLL0STAT & 0x1F) + 1);
- uint8_t usb_div = (LPC_SC->USBCLKSEL & 0x1F);
- if(LPC_SC->CLKSRCSEL & 0x01) //pll_clk_in = main_osc
- USBClock = OSC_CLK * mul / usb_div;
- else //pll_clk_in = irc_clk
- USBClock = IRC_OSC * mul / usb_div;
- }
- break;
- default:
- USBClock = 0; /* this should never happen! */
- }
- }
- else if(LPC_SC->USBCLKSEL & (0x02<<8))//usb_input_clk = alt_pll (pll1)
- {
- if(LPC_SC->CLKSRCSEL & 0x01) //pll1_clk_in = main_osc
- USBClock = (OSC_CLK * ((LPC_SC->PLL1STAT & 0x1F) + 1));
- else //pll1_clk_in = irc_clk
- USBClock = (IRC_OSC * ((LPC_SC->PLL0STAT & 0x1F) + 1));
- }
- else
- USBClock = 0; /* this should never happen! */
-}
-
- /* Determine clock frequency according to clock register values */
-
-#ifdef CORE_M4
-
-void fpu_init(void)
-{
- // from arm trm manual:
-// ; CPACR is located at address 0xE000ED88
-// LDR.W R0, =0xE000ED88
-// ; Read CPACR
-// LDR R1, [R0]
-// ; Set bits 20-23 to enable CP10 and CP11 coprocessors
-// ORR R1, R1, #(0xF << 20)
-// ; Write back the modified value to the CPACR
-// STR R1, [R0]
-
-
- volatile uint32_t* regCpacr = (uint32_t*) LPC_CPACR;
- volatile uint32_t* regMvfr0 = (uint32_t*) SCB_MVFR0;
- volatile uint32_t* regMvfr1 = (uint32_t*) SCB_MVFR1;
- volatile uint32_t Cpacr;
- volatile uint32_t Mvfr0;
- volatile uint32_t Mvfr1;
- char vfpPresent = 0;
-
- Mvfr0 = *regMvfr0;
- Mvfr1 = *regMvfr1;
-
- vfpPresent = ((SCB_MVFR0_RESET == Mvfr0) && (SCB_MVFR1_RESET == Mvfr1));
-
- if(vfpPresent)
- {
- Cpacr = *regCpacr;
- Cpacr |= (0xF << 20);
- *regCpacr = Cpacr; // enable CP10 and CP11 for full access
- }
-
-}
-#endif
-
-/**
- * Initialize the system
- *
- * @param none
- * @return none
- *
- * @brief Setup the microcontroller system.
- * Initialize the System.
- */
-void SystemInit (void)
-{
-#ifndef __CODE_RED
-#ifdef CORE_M4
-fpu_init();
-#endif
-#endif
-
-#if (CLOCK_SETUP) /* Clock Setup */
- LPC_SC->SCS = SCS_Val;
- if (SCS_Val & (1 << 5)) { /* If Main Oscillator is enabled */
- while ((LPC_SC->SCS & (1<<6)) == 0);/* Wait for Oscillator to be ready */
- }
-
- LPC_SC->CLKSRCSEL = CLKSRCSEL_Val; /* Select Clock Source for sysclk/PLL0*/
-
-#if (PLL0_SETUP)
- LPC_SC->PLL0CFG = PLL0CFG_Val;
- LPC_SC->PLL0CON = 0x01; /* PLL0 Enable */
- LPC_SC->PLL0FEED = 0xAA;
- LPC_SC->PLL0FEED = 0x55;
- while (!(LPC_SC->PLL0STAT & (1<<10)));/* Wait for PLOCK0 */
-#endif
-
-#if (PLL1_SETUP)
- LPC_SC->PLL1CFG = PLL1CFG_Val;
- LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */
- LPC_SC->PLL1FEED = 0xAA;
- LPC_SC->PLL1FEED = 0x55;
- while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */
-#endif
-
- LPC_SC->CCLKSEL = CCLKSEL_Val; /* Setup Clock Divider */
- LPC_SC->USBCLKSEL = USBCLKSEL_Val; /* Setup USB Clock Divider */
- LPC_SC->EMCCLKSEL = EMCCLKSEL_Val; /* EMC Clock Selection */
- LPC_SC->SPIFICLKSEL = SPIFICLKSEL_Val; /* SPIFI Clock Selection */
- LPC_SC->PCLKSEL = PCLKSEL_Val; /* Peripheral Clock Selection */
- LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */
- LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */
-#endif
-
- LPC_SC->PBOOST |= 0x03; /* Power Boost control */
-
-#if (FLASH_SETUP == 1) /* Flash Accelerator Setup */
- LPC_SC->FLASHCFG = FLASHCFG_Val|0x03A;
-#endif
-#ifndef __CODE_RED
-#ifdef __RAM_MODE__
- SCB->VTOR = 0x10000000 & 0x3FFFFF80;
-#else
- SCB->VTOR = 0x00000000 & 0x3FFFFF80;
-#endif
-#endif
- SystemCoreClockUpdate();
-}