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Add FreeRTOS-Plus directory.
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Richard Barry
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193
FreeRTOS/Demo/ARM7_STR71x_IAR/Library/include/pcu.h
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FreeRTOS/Demo/ARM7_STR71x_IAR/Library/include/pcu.h
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/******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
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* File Name : pcu.h
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* Author : MCD Application Team
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* Date First Issued : 30/05/2003
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* Description : This file contains all the functions prototypes for the
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* PCU software library.
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********************************************************************************
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* History:
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* 30/11/2004 : V2.0
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* 14/07/2004 : V1.3
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* 01/01/2004 : V1.2
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*******************************************************************************
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THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
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CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
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OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
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CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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#ifndef __PCU_H
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#define __PCU_H
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#include "71x_map.h"
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typedef enum
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{
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PCU_WREN = 0x8000,
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PCU_VROK = 0x1000
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} PCU_Flags;
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typedef enum
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{
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PCU_STABLE,
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PCU_UNSTABLE
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} PCU_VR_Status;
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typedef enum
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{
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PCU_MVR = 0x0008,
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PCU_LPR = 0x0020
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} PCU_VR;
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typedef enum
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{
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WFI_CLOCK2_16,
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WFI_EXTERNAL
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} WFI_CLOCKS;
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typedef enum
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{
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PCU_SLOW,
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PCU_STOP,
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PCU_STANDBY
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} LPM_MODES;
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// VR_OK : Voltage Regulator OK
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#define PCU_VROK_Mask 0x1000
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// Main Voltage Regulator
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#define PCU_MVR_Mask 0x0008
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// Low Power Voltage Regulator
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#define PCU_LPR_Mask 0x0020
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// PCU register Write Enable Bit
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#define PCU_WREN_Mask 0x8000
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// Low Voltage Detector
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#define PCU_LVD_Mask 0x0100
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// Power Down Flag
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#define PCU_PWRDWN_Mask 0x0040
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// WFI Mode Clock Selection Bit
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#define PCU_WFI_CKSEL_Mask 0x00000002
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// Halt Mode Enable Bit
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#define PCU_EN_HALT_Mask 0x00000800
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// Halt Mode Flag
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#define PCU_HALT_Mask 0x0002
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// Stop Mode Enable Bit
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#define PCU_STOP_EN_Mask 0x00000400
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// Low Power Regulator in Wait For interrupt Mode
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#define PCU_LPRWFI_Mask 0x0020
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// Low Power Mode in Wait For interrupt Mode
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#define PCU_LPOWFI_Mask 0x00000001
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// Software Reset Enable
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#define PCU_SRESEN_Mask 0x00000001
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/*******************************************************************************
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* Function Name : PCU_MVRStatus
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* Description : This routine is used to check the Main Voltage Regulator
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* : NewState.
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* Input : None
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* Return : STABLE, UNSTABLE
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*******************************************************************************/
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inline PCU_VR_Status PCU_MVRStatus ( void )
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{
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return (PCU->PWRCR & PCU_VROK_Mask) == 0x00 ? PCU_UNSTABLE : PCU_STABLE;
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}
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/*******************************************************************************
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* Function Name : PCU_FlagStatus
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* Description : This routine is used to return the PCU register flag
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* Input 1 : The flag to get
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* Return : RESET, SET
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*******************************************************************************/
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inline FlagStatus PCU_FlagStatus ( PCU_Flags Xflag )
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{
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return ( PCU->PWRCR & Xflag ) == 0x00 ? RESET : SET;
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}
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/*******************************************************************************
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* Function Name : PCU_VRConfig
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* Description : This routine is used to configure PCU voltage regultors
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* Input 1 : MVR : Main voltage Regulator
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LPR : Low Power Regulator
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* Input 2 : ENABLE : Enable the Voltage Regulator
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DISABLE: Disable ( ByPass ) the VR
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* Return : None
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*******************************************************************************/
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void PCU_VRConfig ( PCU_VR xVR, FunctionalState NewState );
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/*******************************************************************************
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* Function Name : PCU_VRStatus
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* Description : This routine is used to get the PCU voltage regultors status
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* Input : MVR : Main voltage Regulator
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LPR : Low Power Regulator
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* Return : ENABLE : Enable the Voltage Regulator
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DISABLE: Disable ( ByPass ) the VR
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*******************************************************************************/
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inline FunctionalState PCU_VRStatus ( PCU_VR xVR )
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{
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return ( PCU->PWRCR & xVR ) == 0 ? ENABLE : DISABLE;
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}
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/*******************************************************************************
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* Function Name : PCU_LVDDisable
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* Description : This routine is used to disable the Low Voltage Detector.
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* Input : None
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* Return : None
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*******************************************************************************/
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inline void PCU_LVDDisable ( void )
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{
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PCU->PWRCR |= PCU_WREN_Mask; // Unlock Power Control Register
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PCU->PWRCR |= PCU_LVD_Mask; // Set the LVD DIS Flag
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}
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/*******************************************************************************
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* Function Name : PCU_LVDStatus
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* Description : This routine is used to get the LVD NewState.
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* Input : None
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* Return : ENABLE, DISABLE
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*******************************************************************************/
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inline FunctionalState PCU_LVDStatus ( void )
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{
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return ( PCU->PWRCR & PCU_LVD_Mask ) == 0 ? ENABLE : DISABLE;
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}
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/*******************************************************************************
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* Function Name : PCU_WFIEnter
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* Description : This routine is used to force the Device to enter in WFI mode
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* Input 1 : CLOCK2_16 : Clock2_16 as system clock for WFI mode
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* EXTERNAL : external clock as system clock for WFI mode
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* Input 2 : ENABLE : Enable Low Power Regulator during Wait For Interrupt Mode
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* DISABLE: Disable Low Power Regulator during Wait For Interrupt Mode
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* Input 3 : ENABLE : Enable Low Power Mode during Wait For Interrupt Mode
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* DISABLE: Disable Low Power Mode during Wait For Interrupt Mode
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* Return : None
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*******************************************************************************/
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void PCU_WFIEnter ( WFI_CLOCKS Xclock, FunctionalState Xlpr, FunctionalState Xlpm );
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/*******************************************************************************
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* Function Name : PCU_LPMEnter
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* Description : This routine is used to force the Device to enter low
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* power mode
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* Input : SLOW : Slow Mode
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STOP : Stop Mode
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HALT : Halt Mode
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* Return : None
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*******************************************************************************/
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void PCU_LPMEnter ( LPM_MODES Xmode);
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#endif // __PCU_H
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/******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****/
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