259 lines
8.7 KiB
C
259 lines
8.7 KiB
C
/**********************************************************************
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* $Id$ lpc43xx_rgu.c 2011-06-02
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*//**
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* @file lpc43xx_rgu.c
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* @brief Contains all functions support for RGU firmware library on lpc43xx
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* @version 1.0
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* @date 02. June. 2011
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* @author NXP MCU SW Application Team
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*
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* Copyright(C) 2011, NXP Semiconductor
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* All rights reserved.
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*
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***********************************************************************
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* products. This software is supplied "AS IS" without any warranties.
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* NXP Semiconductors assumes no responsibility or liability for the
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* use of the software, conveys no license or title under any patent,
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* copyright, or mask work right to the product. NXP Semiconductors
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* reserves the right to make changes in the software without
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* notification. NXP Semiconductors also make no representation or
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* warranty that such application will be suitable for the specified
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* use without further testing or modification.
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors’
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* relevant copyright in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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**********************************************************************/
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/* Peripheral group ----------------------------------------------------------- */
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/** @addtogroup RGU
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* @{
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*/
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/* Includes ------------------------------------------------------------------- */
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#include "lpc43xx_rgu.h"
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#include "lpc43xx_cgu.h"
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/* If this source file built with example, the lpc43xx FW library configuration
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* file in each example directory ("lpc43xx_libcfg.h") must be included,
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* otherwise the default FW library configuration file must be included instead
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*/
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#ifdef __BUILD_WITH_EXAMPLE__
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#include "lpc43xx_libcfg.h"
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#else
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#include "lpc43xx_libcfg_default.h"
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#endif /* __BUILD_WITH_EXAMPLE__ */
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#ifdef _RGU
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/* Public Functions ----------------------------------------------------------- */
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/** @addtogroup RGU_Public_Functions
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* @{
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*/
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/*********************************************************************//**
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* @brief Soft Reset a Signal
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* @param[in] ResetSignal indicates which signal will be reset, should be:
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* - RGU_SIG_CORE :Core
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* - RGU_SIG_PERIPH :Peripheral
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* - RGU_SIG_MASTER :Master
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* - RGU_SIG_WWDT :WWDT
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* - RGU_SIG_CREG :Configuration register block
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* - RGU_SIG_BUS :Buses
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* - RGU_SIG_SCU :System control unit
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* - RGU_SIG_PINMUX :Pin mux
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* - RGU_SIG_M3 :Cortex-M3 system
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* - RGU_SIG_LCD :LCD controller
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* - RGU_SIG_USB0 :USB0
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* - RGU_SIG_USB1 :USB1
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* - RGU_SIG_DMA :DMA
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* - RGU_SIG_SDIO :SDIO
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* - RGU_SIG_EMC :External memory controller
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* - RGU_SIG_ETHERNET :Ethernet
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* - RGU_SIG_AES :AES
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* - RGU_SIG_GPIO :GPIO
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* - RGU_SIG_TIMER0 :Timer 0
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* - RGU_SIG_TIMER1 :Timer 1
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* - RGU_SIG_TIMER2 :Timer 2
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* - RGU_SIG_TIMER3 :Timer 3
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* - RGU_SIG_RITIMER :Repetitive Interrupt Timer
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* - RGU_SIG_SCT :State Configurable Timer
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* - RGU_SIG_MOTOCONPWM:Motor Control PWM
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* - RGU_SIG_QEI :QEI
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* - RGU_SIG_ADC0 :ADC0
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* - RGU_SIG_ADC1 :ADC1
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* - RGU_SIG_DAC :DAC
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* - RGU_SIG_UART0 :UART0
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* - RGU_SIG_UART1 :UART1
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* - RGU_SIG_UART2 :UART2
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* - RGU_SIG_UART3 :UART3
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* - RGU_SIG_I2C0 :I2C0
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* - RGU_SIG_I2C1 :I2C1
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* - RGU_SIG_SSP0 :SSP0
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* - RGU_SIG_SSP1 :SSP1
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* - RGU_SIG_I2S :I2S
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* - RGU_SIG_SPIFI :SPIFI
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* - RGU_SIG_CAN :CAN
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* @return None
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**********************************************************************/
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void RGU_SoftReset(RGU_SIG ResetSignal)
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{
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if(ResetSignal < 32){
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LPC_RGU->RESET_CTRL0 = 1 << ResetSignal;
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LPC_RGU->RESET_CTRL0 = 0;
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}else{
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LPC_RGU->RESET_CTRL1 = 1 << (ResetSignal - 32);
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LPC_RGU->RESET_CTRL1 = 0;
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}
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}
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/*********************************************************************//**
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* @brief Get source cause of a signal
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* @param[in] ResetSignal reset signal, should be:
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* - RGU_SIG_CORE :Core
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* - RGU_SIG_PERIPH :Peripheral
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* - RGU_SIG_MASTER :Master
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* - RGU_SIG_WWDT :WWDT
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* - RGU_SIG_CREG :Configuration register block
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* - RGU_SIG_BUS :Buses
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* - RGU_SIG_SCU :System control unit
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* - RGU_SIG_PINMUX :Pin mux
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* - RGU_SIG_M3 :Cortex-M3 system
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* - RGU_SIG_LCD :LCD controller
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* - RGU_SIG_USB0 :USB0
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* - RGU_SIG_USB1 :USB1
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* - RGU_SIG_DMA :DMA
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* - RGU_SIG_SDIO :SDIO
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* - RGU_SIG_EMC :External memory controller
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* - RGU_SIG_ETHERNET :Ethernet
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* - RGU_SIG_AES :AES
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* - RGU_SIG_GPIO :GPIO
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* - RGU_SIG_TIMER0 :Timer 0
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* - RGU_SIG_TIMER1 :Timer 1
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* - RGU_SIG_TIMER2 :Timer 2
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* - RGU_SIG_TIMER3 :Timer 3
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* - RGU_SIG_RITIMER :Repetitive Interrupt Timer
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* - RGU_SIG_SCT :State Configurable Timer
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* - RGU_SIG_MOTOCONPWM:Motor Control PWM
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* - RGU_SIG_QEI :QEI
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* - RGU_SIG_ADC0 :ADC0
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* - RGU_SIG_ADC1 :ADC1
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* - RGU_SIG_DAC :DAC
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* - RGU_SIG_UART0 :UART0
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* - RGU_SIG_UART1 :UART1
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* - RGU_SIG_UART2 :UART2
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* - RGU_SIG_UART3 :UART3
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* - RGU_SIG_I2C0 :I2C0
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* - RGU_SIG_I2C1 :I2C1
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* - RGU_SIG_SSP0 :SSP0
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* - RGU_SIG_SSP1 :SSP1
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* - RGU_SIG_I2S :I2S
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* - RGU_SIG_SPIFI :SPIFI
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* - RGU_SIG_CAN :CAN
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* @return Source cause of reset, could be:
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* - RGU_SRC_NONE :No source
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* - RGU_SRC_SOFT :Software reset source
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* - RGU_SRC_EXT :External reset source
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* - RGU_SRC_CORE :Core reset source
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* - RGU_SRC_PERIPH :Peripheral reset source
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* - RGU_SRC_MASTER :Master reset source
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* - RGU_SRC_BOD :BOD reset source
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* - RGU_SRC_WWDT :WWDT reset source
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**********************************************************************/
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RGU_SRC RGU_GetSource(RGU_SIG ResetSignal)
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{
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uint32_t i, temp, registercache;
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if(ResetSignal < 16)
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temp = 3 & (LPC_RGU->RESET_STATUS0 >> ResetSignal);
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else if(ResetSignal < 32)
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temp = 3 & (LPC_RGU->RESET_STATUS1 >> (ResetSignal - 16));
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else if(ResetSignal < 48)
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temp = 3 & (LPC_RGU->RESET_STATUS2 >> (ResetSignal - 32));
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else
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temp = 3 & (LPC_RGU->RESET_STATUS3 >> (ResetSignal - 48));
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if(temp == 0) return RGU_SRC_NONE;
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else if(temp == 3) return RGU_SRC_SOFT;
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else if(temp == 1){
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registercache = (((uint32_t*)&LPC_RGU->RESET_EXT_STAT0)[ResetSignal]);
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for(i = 0; i < 6; i++){
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if(registercache & (1<<i)){
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return (RGU_SRC)(RGU_SRC_EXT + i);
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}
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}
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}
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return RGU_SRC_NONE;
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}
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/*********************************************************************//**
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* @brief Get Current Status of Signal
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* @param[in] ResetSignal Reset Signal, should be:
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* - RGU_SIG_CORE :Core
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* - RGU_SIG_PERIPH :Peripheral
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* - RGU_SIG_MASTER :Master
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* - RGU_SIG_WWDT :WWDT
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* - RGU_SIG_CREG :Configuration register block
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* - RGU_SIG_BUS :Buses
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* - RGU_SIG_SCU :System control unit
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* - RGU_SIG_PINMUX :Pin mux
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* - RGU_SIG_M3 :Cortex-M3 system
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* - RGU_SIG_LCD :LCD controller
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* - RGU_SIG_USB0 :USB0
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* - RGU_SIG_USB1 :USB1
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* - RGU_SIG_DMA :DMA
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* - RGU_SIG_SDIO :SDIO
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* - RGU_SIG_EMC :External memory controller
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* - RGU_SIG_ETHERNET :Ethernet
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* - RGU_SIG_AES :AES
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* - RGU_SIG_GPIO :GPIO
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* - RGU_SIG_TIMER0 :Timer 0
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* - RGU_SIG_TIMER1 :Timer 1
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* - RGU_SIG_TIMER2 :Timer 2
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* - RGU_SIG_TIMER3 :Timer 3
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* - RGU_SIG_RITIMER :Repetitive Interrupt Timer
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* - RGU_SIG_SCT :State Configurable Timer
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* - RGU_SIG_MOTOCONPWM:Motor Control PWM
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* - RGU_SIG_QEI :QEI
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* - RGU_SIG_ADC0 :ADC0
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* - RGU_SIG_ADC1 :ADC1
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* - RGU_SIG_DAC :DAC
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* - RGU_SIG_UART0 :UART0
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* - RGU_SIG_UART1 :UART1
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* - RGU_SIG_UART2 :UART2
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* - RGU_SIG_UART3 :UART3
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* - RGU_SIG_I2C0 :I2C0
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* - RGU_SIG_I2C1 :I2C1
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* - RGU_SIG_SSP0 :SSP0
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* - RGU_SIG_SSP1 :SSP1
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* - RGU_SIG_I2S :I2S
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* - RGU_SIG_SPIFI :SPIFI
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* - RGU_SIG_CAN :CAN
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* @return Signal status, could be:
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* - TRUE :reset is active
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* - FALSE :reset is inactive
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**********************************************************************/
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Bool RGU_GetSignalStatus(RGU_SIG ResetSignal)
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{
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if(ResetSignal < 32)
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return (Bool)!(LPC_RGU->RESET_ACTIVE_STATUS0 | (1 << ResetSignal));
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else
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return (Bool)!(LPC_RGU->RESET_ACTIVE_STATUS1 | (1 << (ResetSignal - 32)));
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}
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/**
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* @}
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*/
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#endif /* _RGU */
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/**
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* @}
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*/
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/* --------------------------------- End Of File ------------------------------ */
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