Stephane Swanepoel / PowerControl

Original

Dependents:   mbed_multiplex mbed_multiplex_matrix

PowerControl.h@0:dedd847106ba, 2015-09-04 (annotated)

Committer:
yenzo
Date:
Fri Sep 04 21:36:03 2015 +0000
Revision:
0:dedd847106ba
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
yenzo 0:dedd847106ba 1 /* mbed PowerControl Library
yenzo 0:dedd847106ba 2 * Copyright (c) 2010 Michael Wei
yenzo 0:dedd847106ba 3 */
yenzo 0:dedd847106ba 4
yenzo 0:dedd847106ba 5 #ifndef MBED_POWERCONTROL_H
yenzo 0:dedd847106ba 6 #define MBED_POWERCONTROL_H
yenzo 0:dedd847106ba 7
yenzo 0:dedd847106ba 8 //shouldn't have to include, but fixes weird problems with defines
yenzo 0:dedd847106ba 9 #include "LPC17xx.h"
yenzo 0:dedd847106ba 10
yenzo 0:dedd847106ba 11 //System Control Register
yenzo 0:dedd847106ba 12 // bit 0: Reserved
yenzo 0:dedd847106ba 13 // bit 1: Sleep on Exit
yenzo 0:dedd847106ba 14 #define LPC1768_SCR_SLEEPONEXIT 0x2
yenzo 0:dedd847106ba 15 // bit 2: Deep Sleep
yenzo 0:dedd847106ba 16 #define LPC1768_SCR_SLEEPDEEP 0x4
yenzo 0:dedd847106ba 17 // bit 3: Resereved
yenzo 0:dedd847106ba 18 // bit 4: Send on Pending
yenzo 0:dedd847106ba 19 #define LPC1768_SCR_SEVONPEND 0x10
yenzo 0:dedd847106ba 20 // bit 5-31: Reserved
yenzo 0:dedd847106ba 21
yenzo 0:dedd847106ba 22 //Power Control Register
yenzo 0:dedd847106ba 23 // bit 0: Power mode control bit 0 (power-down mode)
yenzo 0:dedd847106ba 24 #define LPC1768_PCON_PM0 0x1
yenzo 0:dedd847106ba 25 // bit 1: Power mode control bit 1 (deep power-down mode)
yenzo 0:dedd847106ba 26 #define LPC1768_PCON_PM1 0x2
yenzo 0:dedd847106ba 27 // bit 2: Brown-out reduced power mode
yenzo 0:dedd847106ba 28 #define LPC1768_PCON_BODRPM 0x4
yenzo 0:dedd847106ba 29 // bit 3: Brown-out global disable
yenzo 0:dedd847106ba 30 #define LPC1768_PCON_BOGD 0x8
yenzo 0:dedd847106ba 31 // bit 4: Brown-out reset disable
yenzo 0:dedd847106ba 32 #define LPC1768_PCON_BORD 0x10
yenzo 0:dedd847106ba 33 // bit 5-7 : Reserved
yenzo 0:dedd847106ba 34 // bit 8: Sleep Mode Entry Flag
yenzo 0:dedd847106ba 35 #define LPC1768_PCON_SMFLAG 0x100
yenzo 0:dedd847106ba 36 // bit 9: Deep Sleep Entry Flag
yenzo 0:dedd847106ba 37 #define LPC1768_PCON_DSFLAG 0x200
yenzo 0:dedd847106ba 38 // bit 10: Power Down Entry Flag
yenzo 0:dedd847106ba 39 #define LPC1768_PCON_PDFLAG 0x400
yenzo 0:dedd847106ba 40 // bit 11: Deep Power Down Entry Flag
yenzo 0:dedd847106ba 41 #define LPC1768_PCON_DPDFLAG 0x800
yenzo 0:dedd847106ba 42 // bit 12-31: Reserved
yenzo 0:dedd847106ba 43
yenzo 0:dedd847106ba 44 //"Sleep Mode" (WFI).
yenzo 0:dedd847106ba 45 inline void Sleep(void)
yenzo 0:dedd847106ba 46 {
yenzo 0:dedd847106ba 47 __WFI();
yenzo 0:dedd847106ba 48 }
yenzo 0:dedd847106ba 49
yenzo 0:dedd847106ba 50 //"Deep Sleep" Mode
yenzo 0:dedd847106ba 51 inline void DeepSleep(void)
yenzo 0:dedd847106ba 52 {
yenzo 0:dedd847106ba 53 SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
yenzo 0:dedd847106ba 54 __WFI();
yenzo 0:dedd847106ba 55 }
yenzo 0:dedd847106ba 56
yenzo 0:dedd847106ba 57 //"Power-Down" Mode
yenzo 0:dedd847106ba 58 inline void PowerDown(void)
yenzo 0:dedd847106ba 59 {
yenzo 0:dedd847106ba 60 SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
yenzo 0:dedd847106ba 61 LPC_SC->PCON &= ~LPC1768_PCON_PM1;
yenzo 0:dedd847106ba 62 LPC_SC->PCON |= LPC1768_PCON_PM0;
yenzo 0:dedd847106ba 63 __WFI();
yenzo 0:dedd847106ba 64 //reset back to normal
yenzo 0:dedd847106ba 65 LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0);
yenzo 0:dedd847106ba 66 }
yenzo 0:dedd847106ba 67
yenzo 0:dedd847106ba 68 //"Deep Power-Down" Mode
yenzo 0:dedd847106ba 69 inline void DeepPowerDown(void)
yenzo 0:dedd847106ba 70 {
yenzo 0:dedd847106ba 71 SCB->SCR |= LPC1768_SCR_SLEEPDEEP;
yenzo 0:dedd847106ba 72 LPC_SC->PCON |= LPC1768_PCON_PM1 | LPC1768_PCON_PM0;
yenzo 0:dedd847106ba 73 __WFI();
yenzo 0:dedd847106ba 74 //reset back to normal
yenzo 0:dedd847106ba 75 LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0);
yenzo 0:dedd847106ba 76 }
yenzo 0:dedd847106ba 77
yenzo 0:dedd847106ba 78 //shut down BOD during power-down/deep sleep
yenzo 0:dedd847106ba 79 inline void BrownOut_ReducedPowerMode_Enable(void)
yenzo 0:dedd847106ba 80 {
yenzo 0:dedd847106ba 81 LPC_SC->PCON |= LPC1768_PCON_BODRPM;
yenzo 0:dedd847106ba 82 }
yenzo 0:dedd847106ba 83
yenzo 0:dedd847106ba 84 //turn on BOD during power-down/deep sleep
yenzo 0:dedd847106ba 85 inline void BrownOut_ReducedPowerMode_Disable(void)
yenzo 0:dedd847106ba 86 {
yenzo 0:dedd847106ba 87 LPC_SC->PCON &= ~LPC1768_PCON_BODRPM;
yenzo 0:dedd847106ba 88 }
yenzo 0:dedd847106ba 89
yenzo 0:dedd847106ba 90 //turn off brown out circutry
yenzo 0:dedd847106ba 91 inline void BrownOut_Global_Disable(void)
yenzo 0:dedd847106ba 92 {
yenzo 0:dedd847106ba 93 LPC_SC->PCON |= LPC1768_PCON_BOGD;
yenzo 0:dedd847106ba 94 }
yenzo 0:dedd847106ba 95
yenzo 0:dedd847106ba 96 //turn on brown out circutry
yenzo 0:dedd847106ba 97 inline void BrownOut_Global_Enable(void)
yenzo 0:dedd847106ba 98 {
yenzo 0:dedd847106ba 99 LPC_SC->PCON &= !LPC1768_PCON_BOGD;
yenzo 0:dedd847106ba 100 }
yenzo 0:dedd847106ba 101
yenzo 0:dedd847106ba 102 //turn off brown out reset circutry
yenzo 0:dedd847106ba 103 inline void BrownOut_Reset_Disable(void)
yenzo 0:dedd847106ba 104 {
yenzo 0:dedd847106ba 105 LPC_SC->PCON |= LPC1768_PCON_BORD;
yenzo 0:dedd847106ba 106 }
yenzo 0:dedd847106ba 107
yenzo 0:dedd847106ba 108 //turn on brown outreset circutry
yenzo 0:dedd847106ba 109 inline void BrownOut_Reset_Enable(void)
yenzo 0:dedd847106ba 110 {
yenzo 0:dedd847106ba 111 LPC_SC->PCON &= ~LPC1768_PCON_BORD;
yenzo 0:dedd847106ba 112 }
yenzo 0:dedd847106ba 113 //Peripheral Control Register
yenzo 0:dedd847106ba 114 // bit 0: Reserved
yenzo 0:dedd847106ba 115 // bit 1: PCTIM0: Timer/Counter 0 power/clock enable
yenzo 0:dedd847106ba 116 #define LPC1768_PCONP_PCTIM0 0x2
yenzo 0:dedd847106ba 117 // bit 2: PCTIM1: Timer/Counter 1 power/clock enable
yenzo 0:dedd847106ba 118 #define LPC1768_PCONP_PCTIM1 0x4
yenzo 0:dedd847106ba 119 // bit 3: PCUART0: UART 0 power/clock enable
yenzo 0:dedd847106ba 120 #define LPC1768_PCONP_PCUART0 0x8
yenzo 0:dedd847106ba 121 // bit 4: PCUART1: UART 1 power/clock enable
yenzo 0:dedd847106ba 122 #define LPC1768_PCONP_PCUART1 0x10
yenzo 0:dedd847106ba 123 // bit 5: Reserved
yenzo 0:dedd847106ba 124 // bit 6: PCPWM1: PWM 1 power/clock enable
yenzo 0:dedd847106ba 125 #define LPC1768_PCONP_PCPWM1 0x40
yenzo 0:dedd847106ba 126 // bit 7: PCI2C0: I2C interface 0 power/clock enable
yenzo 0:dedd847106ba 127 #define LPC1768_PCONP_PCI2C0 0x80
yenzo 0:dedd847106ba 128 // bit 8: PCSPI: SPI interface power/clock enable
yenzo 0:dedd847106ba 129 #define LPC1768_PCONP_PCSPI 0x100
yenzo 0:dedd847106ba 130 // bit 9: PCRTC: RTC power/clock enable
yenzo 0:dedd847106ba 131 #define LPC1768_PCONP_PCRTC 0x200
yenzo 0:dedd847106ba 132 // bit 10: PCSSP1: SSP interface 1 power/clock enable
yenzo 0:dedd847106ba 133 #define LPC1768_PCONP_PCSSP1 0x400
yenzo 0:dedd847106ba 134 // bit 11: Reserved
yenzo 0:dedd847106ba 135 // bit 12: PCADC: A/D converter power/clock enable
yenzo 0:dedd847106ba 136 #define LPC1768_PCONP_PCADC 0x1000
yenzo 0:dedd847106ba 137 // bit 13: PCCAN1: CAN controller 1 power/clock enable
yenzo 0:dedd847106ba 138 #define LPC1768_PCONP_PCCAN1 0x2000
yenzo 0:dedd847106ba 139 // bit 14: PCCAN2: CAN controller 2 power/clock enable
yenzo 0:dedd847106ba 140 #define LPC1768_PCONP_PCCAN2 0x4000
yenzo 0:dedd847106ba 141 // bit 15: PCGPIO: GPIOs power/clock enable
yenzo 0:dedd847106ba 142 #define LPC1768_PCONP_PCGPIO 0x8000
yenzo 0:dedd847106ba 143 // bit 16: PCRIT: Repetitive interrupt timer power/clock enable
yenzo 0:dedd847106ba 144 #define LPC1768_PCONP_PCRIT 0x10000
yenzo 0:dedd847106ba 145 // bit 17: PCMCPWM: Motor control PWM power/clock enable
yenzo 0:dedd847106ba 146 #define LPC1768_PCONP_PCMCPWM 0x20000
yenzo 0:dedd847106ba 147 // bit 18: PCQEI: Quadrature encoder interface power/clock enable
yenzo 0:dedd847106ba 148 #define LPC1768_PCONP_PCQEI 0x40000
yenzo 0:dedd847106ba 149 // bit 19: PCI2C1: I2C interface 1 power/clock enable
yenzo 0:dedd847106ba 150 #define LPC1768_PCONP_PCI2C1 0x80000
yenzo 0:dedd847106ba 151 // bit 20: Reserved
yenzo 0:dedd847106ba 152 // bit 21: PCSSP0: SSP interface 0 power/clock enable
yenzo 0:dedd847106ba 153 #define LPC1768_PCONP_PCSSP0 0x200000
yenzo 0:dedd847106ba 154 // bit 22: PCTIM2: Timer 2 power/clock enable
yenzo 0:dedd847106ba 155 #define LPC1768_PCONP_PCTIM2 0x400000
yenzo 0:dedd847106ba 156 // bit 23: PCTIM3: Timer 3 power/clock enable
yenzo 0:dedd847106ba 157 #define LPC1768_PCONP_PCQTIM3 0x800000
yenzo 0:dedd847106ba 158 // bit 24: PCUART2: UART 2 power/clock enable
yenzo 0:dedd847106ba 159 #define LPC1768_PCONP_PCUART2 0x1000000
yenzo 0:dedd847106ba 160 // bit 25: PCUART3: UART 3 power/clock enable
yenzo 0:dedd847106ba 161 #define LPC1768_PCONP_PCUART3 0x2000000
yenzo 0:dedd847106ba 162 // bit 26: PCI2C2: I2C interface 2 power/clock enable
yenzo 0:dedd847106ba 163 #define LPC1768_PCONP_PCI2C2 0x4000000
yenzo 0:dedd847106ba 164 // bit 27: PCI2S: I2S interface power/clock enable
yenzo 0:dedd847106ba 165 #define LPC1768_PCONP_PCI2S 0x8000000
yenzo 0:dedd847106ba 166 // bit 28: Reserved
yenzo 0:dedd847106ba 167 // bit 29: PCGPDMA: GP DMA function power/clock enable
yenzo 0:dedd847106ba 168 #define LPC1768_PCONP_PCGPDMA 0x20000000
yenzo 0:dedd847106ba 169 // bit 30: PCENET: Ethernet block power/clock enable
yenzo 0:dedd847106ba 170 #define LPC1768_PCONP_PCENET 0x40000000
yenzo 0:dedd847106ba 171 // bit 31: PCUSB: USB interface power/clock enable
yenzo 0:dedd847106ba 172 #define LPC1768_PCONP_PCUSB 0x80000000
yenzo 0:dedd847106ba 173
yenzo 0:dedd847106ba 174 //Powers Up specified Peripheral(s)
yenzo 0:dedd847106ba 175 inline unsigned int Peripheral_PowerUp(unsigned int bitMask)
yenzo 0:dedd847106ba 176 {
yenzo 0:dedd847106ba 177 return LPC_SC->PCONP |= bitMask;
yenzo 0:dedd847106ba 178 }
yenzo 0:dedd847106ba 179
yenzo 0:dedd847106ba 180 //Powers Down specified Peripheral(s)
yenzo 0:dedd847106ba 181 inline unsigned int Peripheral_PowerDown(unsigned int bitMask)
yenzo 0:dedd847106ba 182 {
yenzo 0:dedd847106ba 183 return LPC_SC->PCONP &= ~bitMask;
yenzo 0:dedd847106ba 184 }
yenzo 0:dedd847106ba 185
yenzo 0:dedd847106ba 186 //returns if the peripheral is on or off
yenzo 0:dedd847106ba 187 inline bool Peripheral_GetStatus(unsigned int peripheral)
yenzo 0:dedd847106ba 188 {
yenzo 0:dedd847106ba 189 return (LPC_SC->PCONP & peripheral) ? true : false;
yenzo 0:dedd847106ba 190 }
yenzo 0:dedd847106ba 191
yenzo 0:dedd847106ba 192 #endif