mbed library sources

Fork of mbed-src by mbed official

Revision:
10:3bc89ef62ce7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/NXP/LPC1768/cmsis/system_LPC17xx.c	Fri Jun 14 17:49:17 2013 +0100
@@ -0,0 +1,584 @@
+/**************************************************************************//**
+ * @file     system_LPC17xx.c
+ * @brief    CMSIS Cortex-M3 Device System Source File for
+ *           NXP LPC17xx Device Series
+ * @version  V1.11
+ * @date     21. June 2011
+ *
+ * @note
+ * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
+ *
+ * @par
+ * 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.
+ *
+ * @par
+ * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+ * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
+ * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ *
+ ******************************************************************************/
+
+
+#include <stdint.h>
+#include "LPC17xx.h"
+
+
+/** @addtogroup LPC17xx_System
+ * @{
+ */
+
+/*
+//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
+*/
+
+/*--------------------- Clock Configuration ----------------------------------
+//
+// <e> Clock Configuration
+//   <h> System Controls and Status Register (SCS)
+//     <o1.4>    OSCRANGE: Main Oscillator Range Select
+//                     <0=>  1 MHz to 20 MHz
+//                     <1=> 15 MHz to 25 MHz
+//     <e1.5>       OSCEN: Main Oscillator Enable
+//     </e>
+//   </h>
+//
+//   <h> Clock Source Select Register (CLKSRCSEL)
+//     <o2.0..1>   CLKSRC: PLL Clock Source Selection
+//                     <0=> Internal RC oscillator
+//                     <1=> Main oscillator
+//                     <2=> RTC oscillator
+//   </h>
+//
+//   <e3> PLL0 Configuration (Main PLL)
+//     <h> PLL0 Configuration Register (PLL0CFG)
+//                     <i> F_cco0 = (2 * M * F_in) / N
+//                     <i> F_in must be in the range of 32 kHz to 50 MHz
+//                     <i> F_cco0 must be in the range of 275 MHz to 550 MHz
+//       <o4.0..14>  MSEL: PLL Multiplier Selection
+//                     <6-32768><#-1>
+//                     <i> M Value
+//       <o4.16..23> NSEL: PLL Divider Selection
+//                     <1-256><#-1>
+//                     <i> N Value
+//     </h>
+//   </e>
+//
+//   <e5> PLL1 Configuration (USB PLL)
+//     <h> PLL1 Configuration Register (PLL1CFG)
+//                     <i> F_usb = M * F_osc or F_usb = F_cco1 / (2 * P)
+//                     <i> F_cco1 = F_osc * M * 2 * P
+//                     <i> F_cco1 must be in the range of 156 MHz to 320 MHz
+//       <o6.0..4>   MSEL: PLL Multiplier Selection
+//                     <1-32><#-1>
+//                     <i> M Value (for USB maximum value is 4)
+//       <o6.5..6>   PSEL: PLL Divider Selection
+//                     <0=> 1
+//                     <1=> 2
+//                     <2=> 4
+//                     <3=> 8
+//                     <i> P Value
+//     </h>
+//   </e>
+//
+//   <h> CPU Clock Configuration Register (CCLKCFG)
+//     <o7.0..7>  CCLKSEL: Divide Value for CPU Clock from PLL0
+//                     <1-256><#-1>
+//   </h>
+//
+//   <h> USB Clock Configuration Register (USBCLKCFG)
+//     <o8.0..3>   USBSEL: Divide Value for USB Clock from PLL0
+//                     <0-15>
+//                     <i> Divide is USBSEL + 1
+//   </h>
+//
+//   <h> Peripheral Clock Selection Register 0 (PCLKSEL0)
+//     <o9.0..1>    PCLK_WDT: Peripheral Clock Selection for WDT
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.2..3>    PCLK_TIMER0: Peripheral Clock Selection for TIMER0
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.4..5>    PCLK_TIMER1: Peripheral Clock Selection for TIMER1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.6..7>    PCLK_UART0: Peripheral Clock Selection for UART0
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.8..9>    PCLK_UART1: Peripheral Clock Selection for UART1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.12..13>  PCLK_PWM1: Peripheral Clock Selection for PWM1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.14..15>  PCLK_I2C0: Peripheral Clock Selection for I2C0
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.16..17>  PCLK_SPI: Peripheral Clock Selection for SPI
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.20..21>  PCLK_SSP1: Peripheral Clock Selection for SSP1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.22..23>  PCLK_DAC: Peripheral Clock Selection for DAC
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.24..25>  PCLK_ADC: Peripheral Clock Selection for ADC
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o9.26..27>  PCLK_CAN1: Peripheral Clock Selection for CAN1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 6
+//     <o9.28..29>  PCLK_CAN2: Peripheral Clock Selection for CAN2
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 6
+//     <o9.30..31>  PCLK_ACF: Peripheral Clock Selection for ACF
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 6
+//   </h>
+//
+//   <h> Peripheral Clock Selection Register 1 (PCLKSEL1)
+//     <o10.0..1>   PCLK_QEI: Peripheral Clock Selection for the Quadrature Encoder Interface
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.2..3>   PCLK_GPIO: Peripheral Clock Selection for GPIOs
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.4..5>   PCLK_PCB: Peripheral Clock Selection for the Pin Connect Block
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.6..7>   PCLK_I2C1: Peripheral Clock Selection for I2C1
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.10..11> PCLK_SSP0: Peripheral Clock Selection for SSP0
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.12..13> PCLK_TIMER2: Peripheral Clock Selection for TIMER2
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.14..15> PCLK_TIMER3: Peripheral Clock Selection for TIMER3
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.16..17> PCLK_UART2: Peripheral Clock Selection for UART2
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.18..19> PCLK_UART3: Peripheral Clock Selection for UART3
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.20..21> PCLK_I2C2: Peripheral Clock Selection for I2C2
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.22..23> PCLK_I2S: Peripheral Clock Selection for I2S
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.26..27> PCLK_RIT: Peripheral Clock Selection for the Repetitive Interrupt Timer
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.28..29> PCLK_SYSCON: Peripheral Clock Selection for the System Control Block
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//     <o10.30..31> PCLK_MC: Peripheral Clock Selection for the Motor Control PWM
+//                     <0=> Pclk = Cclk / 4
+//                     <1=> Pclk = Cclk
+//                     <2=> Pclk = Cclk / 2
+//                     <3=> Pclk = Hclk / 8
+//   </h>
+//
+//   <h> Power Control for Peripherals Register (PCONP)
+//     <o11.1>      PCTIM0: Timer/Counter 0 power/clock enable
+//     <o11.2>      PCTIM1: Timer/Counter 1 power/clock enable
+//     <o11.3>      PCUART0: UART 0 power/clock enable
+//     <o11.4>      PCUART1: UART 1 power/clock enable
+//     <o11.6>      PCPWM1: PWM 1 power/clock enable
+//     <o11.7>      PCI2C0: I2C interface 0 power/clock enable
+//     <o11.8>      PCSPI: SPI interface power/clock enable
+//     <o11.9>      PCRTC: RTC power/clock enable
+//     <o11.10>     PCSSP1: SSP interface 1 power/clock enable
+//     <o11.12>     PCAD: A/D converter power/clock enable
+//     <o11.13>     PCCAN1: CAN controller 1 power/clock enable
+//     <o11.14>     PCCAN2: CAN controller 2 power/clock enable
+//     <o11.15>     PCGPIO: GPIOs power/clock enable
+//     <o11.16>     PCRIT: Repetitive interrupt timer power/clock enable
+//     <o11.17>     PCMC: Motor control PWM power/clock enable
+//     <o11.18>     PCQEI: Quadrature encoder interface power/clock enable
+//     <o11.19>     PCI2C1: I2C interface 1 power/clock enable
+//     <o11.21>     PCSSP0: SSP interface 0 power/clock enable
+//     <o11.22>     PCTIM2: Timer 2 power/clock enable
+//     <o11.23>     PCTIM3: Timer 3 power/clock enable
+//     <o11.24>     PCUART2: UART 2 power/clock enable
+//     <o11.25>     PCUART3: UART 3 power/clock enable
+//     <o11.26>     PCI2C2: I2C interface 2 power/clock enable
+//     <o11.27>     PCI2S: I2S interface power/clock enable
+//     <o11.29>     PCGPDMA: GP DMA function power/clock enable
+//     <o11.30>     PCENET: Ethernet block power/clock enable
+//     <o11.31>     PCUSB: USB interface power/clock enable
+//   </h>
+//
+//   <h> Clock Output Configuration Register (CLKOUTCFG)
+//     <o12.0..3>   CLKOUTSEL: Selects clock source for CLKOUT
+//                     <0=> CPU clock
+//                     <1=> Main oscillator
+//                     <2=> Internal RC oscillator
+//                     <3=> USB clock
+//                     <4=> RTC oscillator
+//     <o12.4..7>   CLKOUTDIV: Selects clock divider for CLKOUT
+//                     <1-16><#-1>
+//     <o12.8>      CLKOUT_EN: CLKOUT enable control
+//   </h>
+//
+// </e>
+*/
+
+
+
+/** @addtogroup LPC17xx_System_Defines  LPC17xx System Defines
+  @{
+ */
+
+#define CLOCK_SETUP           1
+#define SCS_Val               0x00000020
+#define CLKSRCSEL_Val         0x00000001
+#define PLL0_SETUP            1
+
+#ifdef MCB1700
+#    define PLL0CFG_Val           0x00050063
+#    define PLL1_SETUP            1
+#    define PLL1CFG_Val           0x00000023
+#    define CCLKCFG_Val           0x00000003
+#    define USBCLKCFG_Val         0x00000000
+#else
+#    define PLL0CFG_Val           0x0000000B
+#    define PLL1_SETUP            0
+#    define PLL1CFG_Val           0x00000000
+#    define CCLKCFG_Val           0x00000002
+#    define USBCLKCFG_Val         0x00000005
+#endif
+
+#define PCLKSEL0_Val          0x00000000
+#define PCLKSEL1_Val          0x00000000
+#define PCONP_Val             0x042887DE
+#define CLKOUTCFG_Val         0x00000000
+
+
+/*--------------------- Flash Accelerator Configuration ----------------------
+//
+// <e> Flash Accelerator Configuration
+//   <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          0x0000303A
+
+/*
+//-------- <<< end of configuration section >>> ------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+  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),       ~0x00000030))
+   #error "SCS: Invalid values of reserved bits!"
+#endif
+
+#if (CHECK_RANGE((CLKSRCSEL_Val), 0, 2))
+   #error "CLKSRCSEL: Value out of range!"
+#endif
+
+#if (CHECK_RSVD((PLL0CFG_Val),   ~0x00FF7FFF))
+   #error "PLL0CFG: Invalid values of reserved bits!"
+#endif
+
+#if (CHECK_RSVD((PLL1CFG_Val),   ~0x0000007F))
+   #error "PLL1CFG: Invalid values of reserved bits!"
+#endif
+
+#if (PLL0_SETUP)            /* if PLL0 is used */
+  #if (CCLKCFG_Val < 2)     /* CCLKSEL must be greater then 1 */
+    #error "CCLKCFG: CCLKSEL must be greater then 1 if PLL0 is used!"
+  #endif
+#endif
+
+#if (CHECK_RANGE((CCLKCFG_Val), 2, 255))
+   #error "CCLKCFG: Value out of range!"
+#endif
+
+#if (CHECK_RSVD((USBCLKCFG_Val), ~0x0000000F))
+   #error "USBCLKCFG: Invalid values of reserved bits!"
+#endif
+
+#if (CHECK_RSVD((PCLKSEL0_Val),   0x000C0C00))
+   #error "PCLKSEL0: Invalid values of reserved bits!"
+#endif
+
+#if (CHECK_RSVD((PCLKSEL1_Val),   0x03000300))
+   #error "PCLKSEL1: Invalid values of reserved bits!"
+#endif
+
+#if (CHECK_RSVD((PCONP_Val),      0x10100821))
+   #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), ~0x0000F07F))
+   #error "FLASHCFG: Invalid values of reserved bits!"
+#endif
+
+
+/*----------------------------------------------------------------------------
+  DEFINES
+ *----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+  Define clocks
+ *----------------------------------------------------------------------------*/
+#define XTAL        (12000000UL)        /* Oscillator frequency               */
+#define OSC_CLK     (      XTAL)        /* Main oscillator frequency          */
+#define RTC_CLK     (   32000UL)        /* RTC oscillator frequency           */
+#define IRC_OSC     ( 4000000UL)        /* Internal RC oscillator frequency   */
+
+
+/* F_cco0 = (2 * M * F_in) / N  */
+#define __M               (((PLL0CFG_Val      ) & 0x7FFF) + 1)
+#define __N               (((PLL0CFG_Val >> 16) & 0x00FF) + 1)
+#define __FCCO(__F_IN)    ((2ULL * __M * __F_IN) / __N)
+#define __CCLK_DIV        (((CCLKCFG_Val      ) & 0x00FF) + 1)
+
+/* Determine core clock frequency according to settings */
+ #if (PLL0_SETUP)
+    #if   ((CLKSRCSEL_Val & 0x03) == 1)
+        #define __CORE_CLK (__FCCO(OSC_CLK) / __CCLK_DIV)
+    #elif ((CLKSRCSEL_Val & 0x03) == 2)
+        #define __CORE_CLK (__FCCO(RTC_CLK) / __CCLK_DIV)
+    #else
+        #define __CORE_CLK (__FCCO(IRC_OSC) / __CCLK_DIV)
+    #endif
+ #else
+    #if   ((CLKSRCSEL_Val & 0x03) == 1)
+        #define __CORE_CLK (OSC_CLK         / __CCLK_DIV)
+    #elif ((CLKSRCSEL_Val & 0x03) == 2)
+        #define __CORE_CLK (RTC_CLK         / __CCLK_DIV)
+    #else
+        #define __CORE_CLK (IRC_OSC         / __CCLK_DIV)
+    #endif
+ #endif
+
+/**
+ * @}
+ */
+
+
+/** @addtogroup LPC17xx_System_Public_Variables  LPC17xx System Public Variables
+  @{
+ */
+/*----------------------------------------------------------------------------
+  Clock Variable definitions
+ *----------------------------------------------------------------------------*/
+uint32_t SystemCoreClock = __CORE_CLK;/*!< System Clock Frequency (Core Clock)*/
+
+/**
+ * @}
+ */
+
+
+/** @addtogroup LPC17xx_System_Public_Functions  LPC17xx System Public Functions
+  @{
+ */
+
+/**
+ * Update SystemCoreClock variable
+ *
+ * @param  none
+ * @return none
+ *
+ * @brief  Updates the SystemCoreClock with current core Clock
+ *         retrieved from cpu registers.
+ */void SystemCoreClockUpdate (void)            /* Get Core Clock Frequency      */
+{
+  /* Determine clock frequency according to clock register values             */
+  if (((LPC_SC->PLL0STAT >> 24) & 3) == 3) { /* If PLL0 enabled and connected */
+    switch (LPC_SC->CLKSRCSEL & 0x03) {
+      case 0:                                /* Int. RC oscillator => PLL0    */
+      case 3:                                /* Reserved, default to Int. RC  */
+        SystemCoreClock = (IRC_OSC *
+                          ((2ULL * ((LPC_SC->PLL0STAT & 0x7FFF) + 1)))  /
+                          (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)       /
+                          ((LPC_SC->CCLKCFG & 0xFF)+ 1));
+        break;
+      case 1:                                /* Main oscillator => PLL0       */
+        SystemCoreClock = (OSC_CLK *
+                          ((2ULL * ((LPC_SC->PLL0STAT & 0x7FFF) + 1)))  /
+                          (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)       /
+                          ((LPC_SC->CCLKCFG & 0xFF)+ 1));
+        break;
+      case 2:                                /* RTC oscillator => PLL0        */
+        SystemCoreClock = (RTC_CLK *
+                          ((2ULL * ((LPC_SC->PLL0STAT & 0x7FFF) + 1)))  /
+                          (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)       /
+                          ((LPC_SC->CCLKCFG & 0xFF)+ 1));
+        break;
+    }
+  } else {
+    switch (LPC_SC->CLKSRCSEL & 0x03) {
+      case 0:                                /* Int. RC oscillator => PLL0    */
+      case 3:                                /* Reserved, default to Int. RC  */
+        SystemCoreClock = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1);
+        break;
+      case 1:                                /* Main oscillator => PLL0       */
+        SystemCoreClock = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1);
+        break;
+      case 2:                                /* RTC oscillator => PLL0        */
+        SystemCoreClock = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1);
+        break;
+    }
+  }
+
+}
+
+/**
+ * Initialize the system
+ *
+ * @param  none
+ * @return none
+ *
+ * @brief  Setup the microcontroller system.
+ *         Initialize the System.
+ */
+void SystemInit (void)
+{
+#if (CLOCK_SETUP)                       /* Clock Setup                        */
+  LPC_SC->SCS       = SCS_Val;
+  if (LPC_SC->SCS & (1 << 5)) {             /* If Main Oscillator is enabled  */
+    while ((LPC_SC->SCS & (1<<6)) == 0);/* Wait for Oscillator to be ready    */
+  }
+
+  LPC_SC->CCLKCFG   = CCLKCFG_Val;      /* Setup Clock Divider                */
+  /* Periphral clock must be selected before PLL0 enabling and connecting
+   * - according errata.lpc1768-16.March.2010 -
+   */
+  LPC_SC->PCLKSEL0  = PCLKSEL0_Val;     /* Peripheral Clock Selection         */
+  LPC_SC->PCLKSEL1  = PCLKSEL1_Val;
+
+#if (PLL0_SETUP)
+  LPC_SC->CLKSRCSEL = CLKSRCSEL_Val;    /* Select Clock Source for PLL0       */
+
+  LPC_SC->PLL0CFG   = PLL0CFG_Val;      /* configure PLL0                     */
+  LPC_SC->PLL0FEED  = 0xAA;
+  LPC_SC->PLL0FEED  = 0x55;
+
+  LPC_SC->PLL0CON   = 0x01;             /* PLL0 Enable                        */
+  LPC_SC->PLL0FEED  = 0xAA;
+  LPC_SC->PLL0FEED  = 0x55;
+  while (!(LPC_SC->PLL0STAT & (1<<26)));/* Wait for PLOCK0                    */
+
+  LPC_SC->PLL0CON   = 0x03;             /* PLL0 Enable & Connect              */
+  LPC_SC->PLL0FEED  = 0xAA;
+  LPC_SC->PLL0FEED  = 0x55;
+  while (!(LPC_SC->PLL0STAT & ((1<<25) | (1<<24))));/* Wait for PLLC0_STAT & PLLE0_STAT */
+#endif
+
+#if (PLL1_SETUP)
+  LPC_SC->PLL1CFG   = PLL1CFG_Val;
+  LPC_SC->PLL1FEED  = 0xAA;
+  LPC_SC->PLL1FEED  = 0x55;
+
+  LPC_SC->PLL1CON   = 0x01;             /* PLL1 Enable                        */
+  LPC_SC->PLL1FEED  = 0xAA;
+  LPC_SC->PLL1FEED  = 0x55;
+  while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1                    */
+
+  LPC_SC->PLL1CON   = 0x03;             /* PLL1 Enable & Connect              */
+  LPC_SC->PLL1FEED  = 0xAA;
+  LPC_SC->PLL1FEED  = 0x55;
+  while (!(LPC_SC->PLL1STAT & ((1<< 9) | (1<< 8))));/* Wait for PLLC1_STAT & PLLE1_STAT */
+#else
+  LPC_SC->USBCLKCFG = USBCLKCFG_Val;    /* Setup USB Clock Divider            */
+#endif
+
+  LPC_SC->PCONP     = PCONP_Val;        /* Power Control for Peripherals      */
+
+  LPC_SC->CLKOUTCFG = CLKOUTCFG_Val;    /* Clock Output Configuration         */
+#endif
+
+#if (FLASH_SETUP == 1)                  /* Flash Accelerator Setup            */
+  LPC_SC->FLASHCFG  = (LPC_SC->FLASHCFG & ~0x0000F000) | FLASHCFG_Val;
+#endif
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */