rt-thread/bsp/wch/arm/ch579m/libraries/StdPeriphDriver/CH57x_pwr.c

/********************************** (C) COPYRIGHT *******************************
* File Name          : CH57x_pwr.c
* Author             : WCH
* Version            : V1.0
* Date               : 2018/12/15
* Description
*******************************************************************************/

#include "CH57x_common.h"


/*******************************************************************************
* Function Name  : PWR_DCDCCfg
* Description    : 启用内部DC/DC电源，用于节约系统功耗
* Input          : s:
                    ENABLE  - 打开DCDC电源
                    DISABLE - 关闭DCDC电源
* Return         : None
*******************************************************************************/
void PWR_DCDCCfg( UINT8 s )
{
    if(s == DISABLE)
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R16_POWER_PLAN &= ~(RB_PWR_DCDC_EN|RB_PWR_DCDC_PRE);        // 旁路 DC/DC
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG0;
    }
    else
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R16_POWER_PLAN |= RB_PWR_DCDC_PRE;
        DelayUs(10);
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R16_POWER_PLAN |= RB_PWR_DCDC_EN;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG0;
    }
}

/*******************************************************************************
* Function Name  : PWR_UnitModCfg
* Description    : 可控单元模块的电源控制
* Input          : s:
                    ENABLE  - 打开
                    DISABLE - 关闭
                   unit:
                    please refer to unit of controllable power supply
* Return         : None
*******************************************************************************/
void PWR_UnitModCfg( UINT8 s, UINT8 unit )
{
    if(s == DISABLE)        //关闭
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        if(unit&UNIT_ETH_PHY)       R8_SLP_POWER_CTRL |= RB_SLP_ETH_PWR_DN;
        R8_HFCK_PWR_CTRL &= ~(unit&0x1c);
        R8_CK32K_CONFIG &= ~(unit&0x03);
    }
    else                    //打开
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        if(unit&UNIT_ETH_PHY)       R8_SLP_POWER_CTRL &= ~RB_SLP_ETH_PWR_DN;
        R8_HFCK_PWR_CTRL |= (unit&0x1c);
        R8_CK32K_CONFIG |= (unit&0x03);
    }
    R8_SAFE_ACCESS_SIG = 0;
}

/*******************************************************************************
* Function Name  : PWR_PeriphClkCfg
* Description    : 外设时钟控制位
* Input          : s:
                    ENABLE  - 打开外设时钟
                    DISABLE - 关闭外设时钟
                   perph:
                    please refer to Peripher CLK control bit define
* Return         : None
*******************************************************************************/
void PWR_PeriphClkCfg( UINT8 s, UINT16 perph )
{
    if( s == DISABLE )
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R32_SLEEP_CONTROL |= perph;
    }
    else
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R32_SLEEP_CONTROL &= ~perph;
    }
    R8_SAFE_ACCESS_SIG = 0;
}

/*******************************************************************************
* Function Name  : PWR_PeriphWakeUpCfg
* Description    : 睡眠唤醒源配置
* Input          : s:
                    ENABLE  - 打开此外设睡眠唤醒功能
                    DISABLE - 关闭此外设睡眠唤醒功能
                   perph:
                    RB_SLP_USB_WAKE     -  USB 为唤醒源
                    RB_SLP_ETH_WAKE     -  ETH 为唤醒源
                    RB_SLP_RTC_WAKE     -  RTC 为唤醒源
                    RB_SLP_GPIO_WAKE    -  GPIO 为唤醒源
                    RB_SLP_BAT_WAKE     -  BAT 为唤醒源
                    ALL     -  以上所有
* Return         : None
*******************************************************************************/
void PWR_PeriphWakeUpCfg( UINT8 s, UINT16 perph )
{
    if( s == DISABLE )
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R8_SLP_WAKE_CTRL &= ~perph;
    }
    else
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R8_SLP_WAKE_CTRL |= perph;
    }
    R8_SAFE_ACCESS_SIG = 0;
}

/*******************************************************************************
* Function Name  : PowerMonitor
* Description    : 电源监控
* Input          : s:
                    ENABLE  - 打开此功能
                    DISABLE - 关闭此功能
* Return         : None
*******************************************************************************/
void PowerMonitor( UINT8 s )
{
    if( s == DISABLE )
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R8_BAT_DET_CTRL = 0;
        R8_SAFE_ACCESS_SIG = 0;
    }
    else
    {
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R8_BAT_DET_CFG = 1;                     // 2.05V - 2.33V
        R8_BAT_DET_CTRL = RB_BAT_DET_EN;
        R8_SAFE_ACCESS_SIG = 0;
        mDelayuS(1);
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
        R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
        R8_BAT_DET_CTRL = RB_BAT_LOW_IE|RB_BAT_LOWER_IE|RB_BAT_DET_EN;
        R8_SAFE_ACCESS_SIG = 0;
    }
}

/*******************************************************************************
* Function Name  : LowPower_Idle
* Description    : 低功耗-Idle模式
* Input          : None
* Return         : None
*******************************************************************************/
void LowPower_Idle( void )
{
    SCB -> SCR &= ~SCB_SCR_SLEEPDEEP_Msk;               // sleep
    __WFI();
}

/*******************************************************************************
* Function Name  : EnterCodeUpgrade
* Description    : 跳入BOOT程序，准备代码升级
* Input          : None
* Return         : None
*******************************************************************************/
void EnterCodeUpgrade( void )
{
/* RTC wakeup */
    UINT32 t;

    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
    R8_SLP_WAKE_CTRL |= RB_SLP_RTC_WAKE;
    R16_POWER_PLAN = RB_PWR_PLAN_EN         \
                    |RB_PWR_MUST_0010;
    R8_SAFE_ACCESS_SIG = 0;

    do{
        t = R32_RTC_CNT_32K;
    }while( t != R32_RTC_CNT_32K );

    t = t + 10;
    if( t>0xA8C00000 )  t -= 0xA8C00000;
    if( t&0xFFFF )  t = t+0x10000;

    R8_RTC_FLAG_CTRL = RB_RTC_TRIG_CLR|RB_RTC_TMR_CLR;
    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
    R32_RTC_TRIG = t;
    R8_RTC_MODE_CTRL = 0x2f;    // 进入boot下载必要条件
    R8_SAFE_ACCESS_SIG = 0;

    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
    R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
    R16_CLK_SYS_CFG = 5;                // 降频 HSI/5=6.4M
    R8_SAFE_ACCESS_SIG = 0;

/* ready to BOOT */
    __SEV();
    __WFE();
    __WFE();
    while(1);
}