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Show/hide line numbers PowerControl.h Source File

PowerControl.h

00001 /* mbed PowerControl Library
00002   * Copyright (c) 2010 Michael Wei
00003   */ 
00004   
00005 #ifndef MBED_POWERCONTROL_H 
00006 #define MBED_POWERCONTROL_H 
00007 
00008 //shouldn't have to include, but fixes weird problems with defines
00009 #include "LPC1768/LPC17xx.h"
00010 
00011 //System Control Register
00012 // bit 0: Reserved
00013 // bit 1: Sleep on Exit
00014 #define LPC1768_SCR_SLEEPONEXIT     0x2
00015 // bit 2: Deep Sleep
00016 #define LPC1768_SCR_SLEEPDEEP       0x4
00017 // bit 3: Resereved
00018 // bit 4: Send on Pending
00019 #define LPC1768_SCR_SEVONPEND        0x10
00020 // bit 5-31: Reserved
00021 
00022 //Power Control Register
00023 // bit 0: Power mode control bit 0 (power-down mode)
00024 #define LPC1768_PCON_PM0            0x1
00025 // bit 1: Power mode control bit 1 (deep power-down mode)
00026 #define LPC1768_PCON_PM1            0x2
00027 // bit 2: Brown-out reduced power mode
00028 #define LPC1768_PCON_BODRPM         0x4
00029 // bit 3: Brown-out global disable
00030 #define LPC1768_PCON_BOGD           0x8
00031 // bit 4: Brown-out reset disable
00032 #define LPC1768_PCON_BORD           0x10
00033 // bit 5-7 : Reserved
00034 // bit 8: Sleep Mode Entry Flag
00035 #define LPC1768_PCON_SMFLAG         0x100
00036 // bit 9: Deep Sleep Entry Flag
00037 #define LPC1768_PCON_DSFLAG         0x200
00038 // bit 10: Power Down Entry Flag
00039 #define LPC1768_PCON_PDFLAG         0x400
00040 // bit 11: Deep Power Down Entry Flag
00041 #define LPC1768_PCON_DPDFLAG        0x800
00042 // bit 12-31: Reserved
00043 
00044 //"Sleep Mode" (WFI).
00045 inline void Sleep(void)
00046 {
00047     __WFI();
00048 }
00049 
00050 //"Deep Sleep" Mode
00051 inline void DeepSleep(void)
00052 {
00053    SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
00054    __WFI();
00055 }
00056 
00057 //"Power-Down" Mode
00058 inline void PowerDown(void)
00059 {
00060    SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
00061    LPC_SC->PCON &= ~LPC1768_PCON_PM1;
00062    LPC_SC->PCON |= LPC1768_PCON_PM0;
00063    __WFI();
00064    //reset back to normal
00065   LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0);
00066 }
00067 
00068 //"Deep Power-Down" Mode
00069 inline void DeepPowerDown(void)
00070 {
00071    SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
00072    LPC_SC->PCON |= LPC1768_PCON_PM1 | LPC1768_PCON_PM0;
00073    __WFI();
00074    //reset back to normal
00075   LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0);
00076 }
00077 
00078 //shut down BOD during power-down/deep sleep
00079 inline void BrownOut_ReducedPowerMode_Enable(void)
00080 {
00081     LPC_SC->PCON |= LPC1768_PCON_BODRPM;
00082 }
00083 
00084 //turn on BOD during power-down/deep sleep
00085 inline void BrownOut_ReducedPowerMode_Disable(void)
00086 {
00087     LPC_SC->PCON &= ~LPC1768_PCON_BODRPM;
00088 }
00089 
00090 //turn off brown out circutry
00091 inline void BrownOut_Global_Disable(void)
00092 {
00093     LPC_SC->PCON |= LPC1768_PCON_BOGD;
00094 }
00095 
00096 //turn on brown out circutry
00097 inline void BrownOut_Global_Enable(void)
00098 {
00099     LPC_SC->PCON &= !LPC1768_PCON_BOGD;
00100 }
00101 
00102 //turn off brown out reset circutry
00103 inline void BrownOut_Reset_Disable(void)
00104 {
00105     LPC_SC->PCON |= LPC1768_PCON_BORD;
00106 }
00107 
00108 //turn on brown outreset  circutry
00109 inline void BrownOut_Reset_Enable(void)
00110 {
00111     LPC_SC->PCON &= ~LPC1768_PCON_BORD;
00112 }
00113 //Peripheral Control Register
00114 // bit 0: Reserved
00115 // bit 1: PCTIM0: Timer/Counter 0 power/clock enable
00116 #define LPC1768_PCONP_PCTIM0        0x2
00117 // bit 2: PCTIM1: Timer/Counter 1 power/clock enable
00118 #define LPC1768_PCONP_PCTIM1        0x4
00119 // bit 3: PCUART0: UART 0 power/clock enable
00120 #define LPC1768_PCONP_PCUART0       0x8
00121 // bit 4: PCUART1: UART 1 power/clock enable
00122 #define LPC1768_PCONP_PCUART1       0x10
00123 // bit 5: Reserved
00124 // bit 6: PCPWM1: PWM 1 power/clock enable
00125 #define LPC1768_PCONP_PCPWM1        0x40
00126 // bit 7: PCI2C0: I2C interface 0 power/clock enable
00127 #define LPC1768_PCONP_PCI2C0        0x80
00128 // bit 8: PCSPI: SPI interface power/clock enable
00129 #define LPC1768_PCONP_PCSPI         0x100
00130 // bit 9: PCRTC: RTC power/clock enable
00131 #define LPC1768_PCONP_PCRTC         0x200
00132 // bit 10: PCSSP1: SSP interface 1 power/clock enable
00133 #define LPC1768_PCONP_PCSSP1        0x400
00134 // bit 11: Reserved
00135 // bit 12: PCADC: A/D converter power/clock enable
00136 #define LPC1768_PCONP_PCADC         0x1000
00137 // bit 13: PCCAN1: CAN controller 1 power/clock enable
00138 #define LPC1768_PCONP_PCCAN1        0x2000
00139 // bit 14: PCCAN2: CAN controller 2 power/clock enable
00140 #define LPC1768_PCONP_PCCAN2        0x4000
00141 // bit 15: PCGPIO: GPIOs power/clock enable
00142 #define LPC1768_PCONP_PCGPIO        0x8000
00143 // bit 16: PCRIT: Repetitive interrupt timer power/clock enable
00144 #define LPC1768_PCONP_PCRIT         0x10000
00145 // bit 17: PCMCPWM: Motor control PWM power/clock enable
00146 #define LPC1768_PCONP_PCMCPWM       0x20000
00147 // bit 18: PCQEI: Quadrature encoder interface power/clock enable
00148 #define LPC1768_PCONP_PCQEI         0x40000
00149 // bit 19: PCI2C1: I2C interface 1 power/clock enable
00150 #define LPC1768_PCONP_PCI2C1        0x80000
00151 // bit 20: Reserved
00152 // bit 21: PCSSP0: SSP interface 0 power/clock enable
00153 #define LPC1768_PCONP_PCSSP0        0x200000
00154 // bit 22: PCTIM2: Timer 2 power/clock enable
00155 #define LPC1768_PCONP_PCTIM2        0x400000
00156 // bit 23: PCTIM3: Timer 3 power/clock enable
00157 #define LPC1768_PCONP_PCQTIM3       0x800000
00158 // bit 24: PCUART2: UART 2 power/clock enable
00159 #define LPC1768_PCONP_PCUART2       0x1000000
00160 // bit 25: PCUART3: UART 3 power/clock enable
00161 #define LPC1768_PCONP_PCUART3       0x2000000
00162 // bit 26: PCI2C2: I2C interface 2 power/clock enable
00163 #define LPC1768_PCONP_PCI2C2        0x4000000
00164 // bit 27: PCI2S: I2S interface power/clock enable
00165 #define LPC1768_PCONP_PCI2S         0x8000000
00166 // bit 28: Reserved
00167 // bit 29: PCGPDMA: GP DMA function power/clock enable
00168 #define LPC1768_PCONP_PCGPDMA       0x20000000
00169 // bit 30: PCENET: Ethernet block power/clock enable
00170 #define LPC1768_PCONP_PCENET        0x40000000
00171 // bit 31: PCUSB: USB interface power/clock enable
00172 #define LPC1768_PCONP_PCUSB         0x80000000
00173 
00174 //Powers Up specified Peripheral(s)
00175 inline unsigned int Peripheral_PowerUp(unsigned int bitMask)
00176 {
00177     return LPC_SC->PCONP |= bitMask;
00178 }   
00179 
00180 //Powers Down specified Peripheral(s) 
00181 inline unsigned int Peripheral_PowerDown(unsigned int bitMask)
00182 {
00183     return LPC_SC->PCONP &= ~bitMask;
00184 }
00185 
00186 //returns if the peripheral is on or off
00187 inline bool Peripheral_GetStatus(unsigned int peripheral)
00188 {
00189     return (LPC_SC->PCONP & peripheral) ? true : false;
00190 }
00191 
00192 #endif