9957f94d0b
1. adapt to M052xDN/xDE, M054xDN/xDE, M058xDN/xDE, M0516/xDN/xDE.
2. support heap memory management.
162 lines
4.1 KiB
C
162 lines
4.1 KiB
C
/**************************************************************************//**
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* @file sys.c
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* @version V3.00
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* $Revision: 6 $
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* $Date: 14/01/28 6:58p $
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* @brief M051 series SYS driver source file
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*
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* @note
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* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "M051Series.h"
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/** @addtogroup M051_Device_Driver M051 Device Driver
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@{
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*/
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/** @addtogroup M051_SYS_Driver SYS Driver
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@{
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*/
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/** @addtogroup M051_SYS_EXPORTED_FUNCTIONS SYS Exported Functions
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@{
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*/
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/**
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* @brief This function clear the selected system reset source
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* @param u32Src is system reset source
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* @return None
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*/
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void SYS_ClearResetSrc(uint32_t u32Src)
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{
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SYS->RSTSRC |= u32Src;
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}
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/**
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* @brief This function get Brown-out detector output status
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* @return 0: System voltage is higher than BOD_VL setting or BOD_EN is 0.
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* 1: System voltage is lower than BOD_VL setting.
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* Note : If the BOD_EN is 0, this function always return 0.
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*/
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uint32_t SYS_GetBODStatus(void)
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{
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return (SYS->BODCR & SYS_BODCR_BOD_OUT_Msk) ? 1 : 0;
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}
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/**
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* @brief This function get the system reset source register value
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* @return Reset source
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*/
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uint32_t SYS_GetResetSrc(void)
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{
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return (SYS->RSTSRC);
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}
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/**
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* @brief This function check register write-protection bit setting
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* @return 0: Write-protection function is disabled.
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* 1: Write-protection function is enabled.
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*/
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uint32_t SYS_IsRegLocked(void)
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{
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return !(SYS->REGWRPROT & SYS_REGWRPROT_REGPROTDIS_Msk);
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}
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/**
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* @brief This function get product ID.
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* @return Product ID
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*/
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uint32_t SYS_ReadPDID(void)
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{
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return SYS->PDID;
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}
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/**
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* @brief This function reset chip.
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* @return None
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*/
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void SYS_ResetChip(void)
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{
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SYS->IPRSTC1 |= SYS_IPRSTC1_CHIP_RST_Msk;
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}
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/**
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* @brief This function reset CPU.
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* @return None
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*/
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void SYS_ResetCPU(void)
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{
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SYS->IPRSTC1 |= SYS_IPRSTC1_CPU_RST_Msk;
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}
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/**
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* @brief This function reset selected modules.
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* @param u32ModuleIndex is module index. Including :
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* - \ref CHIP_RST
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* - \ref CPU_RST
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* - \ref EBI_RST
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* - \ref HDIV_RST
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* - \ref GPIO_RST
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* - \ref TMR0_RST
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* - \ref TMR1_RST
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* - \ref TMR2_RST
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* - \ref TMR3_RST
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* - \ref I2C0_RST
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* - \ref I2C1_RST
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* - \ref SPI0_RST
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* - \ref SPI1_RST
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* - \ref UART0_RST
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* - \ref UART1_RST
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* - \ref PWM03_RST
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* - \ref PWM47_RST
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* - \ref ACMP01_RST
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* - \ref ACMP23_RST
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* - \ref ADC_RST
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* @return None
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*/
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void SYS_ResetModule(uint32_t u32ModuleIndex)
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{
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*(volatile uint32_t *)(&(SYS->IPRSTC1) + (u32ModuleIndex >> 24)) |= 1 << (u32ModuleIndex & 0x00ffffff);
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*(volatile uint32_t *)(&(SYS->IPRSTC1) + (u32ModuleIndex >> 24)) &= ~(1 << (u32ModuleIndex & 0x00ffffff));
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}
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/**
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* @brief This function configure BOD function.
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* Configure BOD reset or interrupt mode and set Brown-out voltage level.
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* Enable Brown-out function
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* @param i32Mode is reset or interrupt mode. Including :
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* - \ref SYS_BODCR_BOD_RST_EN
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* - \ref SYS_BODCR_BOD_INTERRUPT_EN
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* @param u32BODLevel is Brown-out voltage level. Including :
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* - \ref SYS_BODCR_BOD_VL_4_4V
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* - \ref SYS_BODCR_BOD_VL_3_7V
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* - \ref SYS_BODCR_BOD_VL_2_7V
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* - \ref SYS_BODCR_BOD_VL_2_2V
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* @return None
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*/
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void SYS_EnableBOD(int32_t i32Mode, uint32_t u32BODLevel)
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{
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SYS->BODCR |= SYS_BODCR_BOD_EN_Msk;
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SYS->BODCR = (SYS->BODCR & ~SYS_BODCR_BOD_RSTEN_Msk) | i32Mode;
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SYS->BODCR = (SYS->BODCR & ~SYS_BODCR_BOD_VL_Msk) | u32BODLevel;
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}
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/**
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* @brief This function disable BOD function.
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* @return None
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*/
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void SYS_DisableBOD(void)
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{
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SYS->BODCR &= ~SYS_BODCR_BOD_EN_Msk;
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}
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/*@}*/ /* end of group M051_SYS_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group M051_SYS_Driver */
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/*@}*/ /* end of group M051_Device_Driver */
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/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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