mbed library sources. Supersedes mbed-src.
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targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_sys.c
- Committer:
- <>
- Date:
- 2016-10-28
- Revision:
- 149:156823d33999
- Parent:
- targets/cmsis/TARGET_NUVOTON/TARGET_NUC472/StdDriver/nuc472_sys.c@ 144:ef7eb2e8f9f7
File content as of revision 149:156823d33999:
/*************************************************************************//** * @file sys.c * @version V1.00 * $Revision: 15 $ * $Date: 14/10/06 1:06p $ * @brief NUC472/NUC442 SYS driver source file * * @note * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #include "NUC472_442.h" /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver @{ */ /** @addtogroup NUC472_442_SYS_Driver SYS Driver @{ */ /** @addtogroup NUC472_442_SYS_EXPORTED_FUNCTIONS SYS Exported Functions @{ */ /** * @brief This function clear the selected system reset source * @param[in] u32RstSrc is system reset source. Including: * - \ref SYS_RSTSTS_PORF_Msk * - \ref SYS_RSTSTS_PINRF_Msk * - \ref SYS_RSTSTS_WDTRF_Msk * - \ref SYS_RSTSTS_LVRF_Msk * - \ref SYS_RSTSTS_BODRF_Msk * - \ref SYS_RSTSTS_SYSRF_Msk * - \ref SYS_RSTSTS_CPURF_Msk * @return None */ void SYS_ClearResetSrc(uint32_t u32RstSrc) { SYS->RSTSTS |= u32RstSrc; } /** * @brief This function get Brown-out detector output status * @return 0: System voltage is higher than BODVL setting or BODEN is 0. * 1: System voltage is lower than BODVL setting. * Note : If the BOD_EN is 0, this function always return 0. */ uint32_t SYS_GetBODStatus() { return (SYS->BODCTL & SYS_BODCTL_BODOUT_Msk); } /** * @brief This function get the system reset source register value * @return Reset source */ uint32_t SYS_GetResetSrc(void) { return (SYS->RSTSTS); } /** * @brief This function check register write-protection bit setting * @return 0: Write-protection function is disabled. * 1: Write-protection function is enabled. */ uint32_t SYS_IsRegLocked(void) { return (SYS->REGLCTL & SYS_REGLCTL_REGLCTL_Msk); } /** * @brief This function enable register write-protection function * @return None * @details To lock the protected register to forbid write access */ void SYS_LockReg(void) { SYS->REGLCTL = 0; } /** * @brief This function disable register write-protection function * @return None * @details To unlock the protected register to allow write access */ void SYS_UnlockReg(void) { while(SYS->REGLCTL != SYS_REGLCTL_REGLCTL_Msk) { SYS->REGLCTL = 0x59; SYS->REGLCTL = 0x16; SYS->REGLCTL = 0x88; } } /** * @brief This function get product ID. * @return Product ID */ uint32_t SYS_ReadPDID(void) { return SYS->PDID; } /** * @brief This function reset chip. * @return None */ void SYS_ResetChip(void) { SYS->IPRST0 |= SYS_IPRST0_CHIPRST_Msk; } /** * @brief This function reset CPU. * @return None */ void SYS_ResetCPU(void) { SYS->IPRST0 |= SYS_IPRST0_CPURST_Msk; } /** * @brief This function reset selected modules. * @param[in] u32ModuleIndex is module index. Including : * - \ref CHIP_RST * - \ref CPU_RST * - \ref PDMA_RST * - \ref EBI_RST * - \ref USBH_RST * - \ref EMAC_RST * - \ref SDH_RST * - \ref CRC_RST * - \ref CAP_RST * - \ref SPACC_RST * - \ref GPIO_RST * - \ref TMR0_RST * - \ref TMR1_RST * - \ref TMR2_RST * - \ref TMR3_RST * - \ref ACMP_RST * - \ref I2C0_RST * - \ref I2C1_RST * - \ref I2C2_RST * - \ref I2C3_RST * - \ref SPI0_RST * - \ref SPI1_RST * - \ref SPI2_RST * - \ref SPI3_RST * - \ref UART0_RST * - \ref UART1_RST * - \ref UART2_RST * - \ref UART3_RST * - \ref UART4_RST * - \ref UART5_RST * - \ref CAN0_RST * - \ref CAN1_RST * - \ref OTG_RST * - \ref USBD_RST * - \ref ADC_RST * - \ref I2S0_RST * - \ref I2S1_RST * - \ref PS2_RST * - \ref SC0_RST * - \ref SC1_RST * - \ref SC2_RST * - \ref SC3_RST * - \ref SC4_RST * - \ref SC5_RST * - \ref I2C4_RST * - \ref PWM0_RST * - \ref PWM1_RST * - \ref QEI0_RST * - \ref QEI1_RST * @return None */ void SYS_ResetModule(uint32_t u32ModuleIndex) { *(volatile uint32_t *)((uint32_t)&(SYS->IPRST0) + (u32ModuleIndex>>24)) |= 1<<(u32ModuleIndex & 0x00ffffff); *(volatile uint32_t *)((uint32_t)&(SYS->IPRST0) + (u32ModuleIndex>>24)) &= ~(1<<(u32ModuleIndex & 0x00ffffff)); } /** * @brief This function configure BOD function. * Configure BOD reset or interrupt mode and set Brown-out voltage level. * Enable Brown-out function * @param[in] i32Mode is reset or interrupt mode. Including : * - \ref SYS_BODCTL_BODRSTEN * - \ref SYS_BODCTL_BODINTEN * @param[in] u32BODLevel is Brown-out voltage level. Including : * - \ref SYS_BODCTL_BODVL_2_2V * - \ref SYS_BODCTL_BODVL_2_7V * - \ref SYS_BODCTL_BODVL_3_8V * - \ref SYS_BODCTL_BODVL_4_5V * * @return None */ void SYS_EnableBOD(int32_t i32Mode, uint32_t u32BODLevel) { SYS->BODCTL &= ~(SYS_BODCTL_BODVL_Msk|SYS_BODCTL_BODRSTEN_Msk); SYS->BODCTL |=(i32Mode|u32BODLevel|SYS_BODCTL_BODEN_Msk); } /** * @brief This function disable BOD function. * @return None */ void SYS_DisableBOD(void) { SYS->BODCTL &= ~SYS_BODCTL_BODEN_Msk; } /*@}*/ /* end of group NUC472_442_SYS_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group NUC472_442_SYS_Driver */ /*@}*/ /* end of group NUC472_442_Device_Driver */ /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/