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ch592-projects/vendor/StdPeriphDriver/CH59x_clk.c

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2025-08-17 12:42:01 +10:00
/********************************** (C) COPYRIGHT *******************************
* File Name : CH59x_clk.c
* Author : WCH
* Version : V1.2
* Date : 2021/11/17
* Description
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "CH59x_common.h"
/*********************************************************************
* @fn LClk32K_Select
*
* @brief 32K 低频时钟来源
*
* @param hc - 选择32K使用内部还是外部
*
* @return none
*/
void LClk32K_Select(LClk32KTypeDef hc)
{
uint8_t cfg = R8_CK32K_CONFIG;
if(hc == Clk32K_LSI)
{
cfg &= ~RB_CLK_OSC32K_XT;
LSECFG_Current(LSE_RCur_100);
}
else
{
cfg |= RB_CLK_OSC32K_XT;
}
sys_safe_access_enable();
R8_CK32K_CONFIG = cfg;
sys_safe_access_disable();
}
/*********************************************************************
* @fn LClk32K_Cfg
*
* @brief 32K 低频时钟电源配置
*
* @param hc - 选择内部32K还是外部32K
* @param s - 是否打开电源
*
* @return none
*/
void LClk32K_Cfg(LClk32KTypeDef hc, FunctionalState s)
{
uint8_t cfg = R8_CK32K_CONFIG;
if(hc == Clk32K_LSI)
{
if(s == DISABLE)
{
cfg &= ~RB_CLK_INT32K_PON;
}
else
{
cfg |= RB_CLK_INT32K_PON;
}
}
else
{
if(s == DISABLE)
{
cfg &= ~RB_CLK_XT32K_PON;
}
else
{
cfg |= RB_CLK_XT32K_PON;
}
}
sys_safe_access_enable();
R8_CK32K_CONFIG = cfg;
sys_safe_access_disable();
}
/*********************************************************************
* @fn HSECFG_Current
*
* @brief HSE晶体 偏置电流配置
*
* @param c - 75%,100%,125%,150%
*
* @return none
*/
void HSECFG_Current(HSECurrentTypeDef c)
{
uint8_t x32M_c;
x32M_c = R8_XT32M_TUNE;
x32M_c = (x32M_c & 0xfc) | (c & 0x03);
sys_safe_access_enable();
R8_XT32M_TUNE = x32M_c;
sys_safe_access_disable();
}
/*********************************************************************
* @fn HSECFG_Capacitance
*
* @brief HSE晶体 负载电容配置
*
* @param c - refer to HSECapTypeDef
*
* @return none
*/
void HSECFG_Capacitance(HSECapTypeDef c)
{
uint8_t x32M_c;
x32M_c = R8_XT32M_TUNE;
x32M_c = (x32M_c & 0x8f) | (c << 4);
sys_safe_access_enable();
R8_XT32M_TUNE = x32M_c;
sys_safe_access_disable();
}
/*********************************************************************
* @fn LSECFG_Current
*
* @brief LSE晶体 偏置电流配置
*
* @param c - 70%,100%,140%,200%
*
* @return none
*/
void LSECFG_Current(LSECurrentTypeDef c)
{
uint8_t x32K_c;
x32K_c = R8_XT32K_TUNE;
x32K_c = (x32K_c & 0xfc) | (c & 0x03);
sys_safe_access_enable();
R8_XT32K_TUNE = x32K_c;
sys_safe_access_disable();
}
/*********************************************************************
* @fn LSECFG_Capacitance
*
* @brief LSE晶体 负载电容配置
*
* @param c - refer to LSECapTypeDef
*
* @return none
*/
void LSECFG_Capacitance(LSECapTypeDef c)
{
uint8_t x32K_c;
x32K_c = R8_XT32K_TUNE;
x32K_c = (x32K_c & 0x0f) | (c << 4);
sys_safe_access_enable();
R8_XT32K_TUNE = x32K_c;
sys_safe_access_disable();
}
/*********************************************************************
* @fn Calibration_LSI
*
* @brief 校准内部32K时钟
*
* @param cali_Lv - 校准等级选择 Level_32 ：2.4ms 1000ppm (32M 主频) 1100ppm (60M 主频)
* Level_64 ：4.4ms 800ppm (32M 主频) 1000ppm (60M 主频)
* Level_128 ：8.4ms 600ppm (32M 主频) 800ppm (60M 主频)
*
* @return none
*/
void Calibration_LSI(Cali_LevelTypeDef cali_Lv)
{
UINT64 i;
long long cnt_offset;
UINT8 retry = 0;
UINT8 retry_all = 0;
INT32 freq_sys;
UINT32 cnt_32k = 0;
UINT32 irqv = 0;
freq_sys = GetSysClock();
sys_safe_access_enable();
R8_CK32K_CONFIG &= ~RB_CLK_OSC32K_FILT;
R8_CK32K_CONFIG |= RB_CLK_OSC32K_FILT;
sys_safe_access_disable();
LSECFG_Current(LSE_RCur_100);
while(1)
{
// 粗调
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_TOTAL;
R8_OSC_CAL_CTRL |= 1;
sys_safe_access_disable();
while(1)
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
R16_OSC_CAL_CNT |= RB_OSC_CAL_IF;
sys_safe_access_disable();
while( (R8_OSC_CAL_CTRL & RB_OSC_CNT_EN) == 0 )
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
sys_safe_access_disable();
}
while(!(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT)); // 用于丢弃
SYS_DisableAllIrq(&irqv);
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_EN;
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
R16_OSC_CAL_CNT |= RB_OSC_CAL_IF;
sys_safe_access_disable();
while( (R8_OSC_CAL_CTRL & RB_OSC_CNT_EN) == 0 )
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
sys_safe_access_disable();
}
while(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT);
cnt_32k = RTC_GetCycle32k();
while(RTC_GetCycle32k() == cnt_32k);
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
SYS_RecoverIrq(irqv);
while(!(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT));
i = R16_OSC_CAL_CNT; // 实时校准后采样值
cnt_offset = (i & 0x3FFF) + R8_OSC_CAL_OV_CNT * 0x3FFF - 2000 * (freq_sys / 1000) / CAB_LSIFQ;
if(((cnt_offset > -37 * (freq_sys / 1000) / 60000) && (cnt_offset < 37 * (freq_sys / 1000) / 60000)) || retry > 2)
{
if(retry)
break;
}
retry++;
cnt_offset = (cnt_offset > 0) ? (((cnt_offset * 2) / (74 * (freq_sys/1000) / 60000)) + 1) / 2 : (((cnt_offset * 2) / (74 * (freq_sys/1000) / 60000 )) - 1) / 2;
sys_safe_access_enable();
R16_INT32K_TUNE += cnt_offset;
sys_safe_access_disable();
}
// 细调
// 配置细调参数后，丢弃2次捕获值（软件行为）上判断已有一次，这里只留一次
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_TOTAL;
R8_OSC_CAL_CTRL |= cali_Lv;
sys_safe_access_disable();
while( (R8_OSC_CAL_CTRL & RB_OSC_CNT_TOTAL) != cali_Lv )
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= cali_Lv;
sys_safe_access_disable();
}
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_EN;
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
R16_OSC_CAL_CNT |= RB_OSC_CAL_IF;
sys_safe_access_disable();
while( (R8_OSC_CAL_CTRL & RB_OSC_CNT_EN) == 0 )
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
sys_safe_access_disable();
}
while(!(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT)); // 用于丢弃
SYS_DisableAllIrq(&irqv);
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_EN;
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
R16_OSC_CAL_CNT |= RB_OSC_CAL_IF;
sys_safe_access_disable();
while( (R8_OSC_CAL_CTRL & RB_OSC_CNT_EN) == 0 )
{
sys_safe_access_enable();
R8_OSC_CAL_CTRL |= RB_OSC_CNT_EN;
sys_safe_access_disable();
}
while(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT);
cnt_32k = RTC_GetCycle32k();
while(RTC_GetCycle32k() == cnt_32k);
R16_OSC_CAL_CNT |= RB_OSC_CAL_OV_CLR;
SYS_RecoverIrq(irqv);
while(!(R8_OSC_CAL_CTRL & RB_OSC_CNT_HALT));
sys_safe_access_enable();
R8_OSC_CAL_CTRL &= ~RB_OSC_CNT_EN;
sys_safe_access_disable();
i = R16_OSC_CAL_CNT; // 实时校准后采样值
cnt_offset = (i & 0x3FFF) + R8_OSC_CAL_OV_CNT * 0x3FFF - 4000 * (1 << cali_Lv) * (freq_sys / 1000000) / 256 * 1000/(CAB_LSIFQ/256);
cnt_offset = (cnt_offset > 0) ? ((((cnt_offset * 2*(100 )) / (1366 * ((1 << cali_Lv)/8) * (freq_sys/1000) / 60000)) + 1) / 2) : ((((cnt_offset * 2*(100)) / (1366 * ((1 << cali_Lv)/8) * (freq_sys/1000) / 60000)) - 1) / 2);
if((cnt_offset > 0)&&(((R16_INT32K_TUNE>>5)+cnt_offset)>0xFF))
{
if(retry_all>2)
{
sys_safe_access_enable();
R16_INT32K_TUNE |= (0xFF<<5);
sys_safe_access_disable();
return;
}
else
{
sys_safe_access_enable();
R16_INT32K_TUNE = (R16_INT32K_TUNE&0x1F)|(0x7F<<5);
sys_safe_access_disable();
}
}
else if((cnt_offset < 0)&&((R16_INT32K_TUNE>>5)<(-cnt_offset)))
{
if(retry_all>2)
{
sys_safe_access_enable();
R16_INT32K_TUNE &= 0x1F;
sys_safe_access_disable();
return;
}
else
{
sys_safe_access_enable();
R16_INT32K_TUNE = (R16_INT32K_TUNE&0x1F)|(0x7F<<5);
sys_safe_access_disable();
}
}
else
{
sys_safe_access_enable();
R16_INT32K_TUNE += (cnt_offset<<5);
sys_safe_access_disable();
return;
}
retry_all++;
}
}
/*********************************************************************
* @fn RTCInitTime
*
* @brief RTC时钟初始化当前时间
*
* @param y - 配置年，MAX_Y = BEGYEAR + 44
* @param mon - 配置月，MAX_MON = 12
* @param d - 配置日，MAX_D = 31
* @param h - 配置小时，MAX_H = 23
* @param m - 配置分钟，MAX_M = 59
* @param s - 配置秒，MAX_S = 59
*
* @return none
*/
void RTC_InitTime(uint16_t y, uint16_t mon, uint16_t d, uint16_t h, uint16_t m, uint16_t s)
{
uint32_t t;
uint16_t year, month, day, sec2, t32k;
volatile uint8_t clk_pin;
year = y;
month = mon;
day = 0;
while(year > BEGYEAR)
{
day += YearLength(year - 1);
year--;
}
while(month > 1)
{
day += monthLength(IsLeapYear(y), month - 2);
month--;
}
day += d - 1;
sec2 = (h % 24) * 1800 + m * 30 + s / 2;
t32k = (s & 1) ? (0x8000) : (0);
t = sec2;
t = t << 16 | t32k;
do
{
clk_pin = (R8_CK32K_CONFIG & RB_32K_CLK_PIN);
} while(clk_pin != (R8_CK32K_CONFIG & RB_32K_CLK_PIN));
if(!clk_pin)
{
while(!clk_pin)
{
do
{
clk_pin = (R8_CK32K_CONFIG & RB_32K_CLK_PIN);
} while(clk_pin != (R8_CK32K_CONFIG & RB_32K_CLK_PIN));
}
}
sys_safe_access_enable();
R32_RTC_TRIG = day;
R8_RTC_MODE_CTRL |= RB_RTC_LOAD_HI;
sys_safe_access_disable();
while((R32_RTC_TRIG & 0x3FFF) != (R32_RTC_CNT_DAY & 0x3FFF));
sys_safe_access_enable();
R32_RTC_TRIG = t;
R8_RTC_MODE_CTRL |= RB_RTC_LOAD_LO;
sys_safe_access_disable();
}
/*********************************************************************
* @fn RTC_GetTime
*
* @brief 获取当前时间
*
* @param py - 获取到的年，MAX_Y = BEGYEAR + 44
* @param pmon - 获取到的月，MAX_MON = 12
* @param pd - 获取到的日，MAX_D = 31
* @param ph - 获取到的小时，MAX_H = 23
* @param pm - 获取到的分钟，MAX_M = 59
* @param ps - 获取到的秒，MAX_S = 59
*
* @return none
*/
void RTC_GetTime(uint16_t *py, uint16_t *pmon, uint16_t *pd, uint16_t *ph, uint16_t *pm, uint16_t *ps)
{
uint32_t t;
uint16_t day, sec2, t32k;
day = R32_RTC_CNT_DAY & 0x3FFF;
sec2 = R16_RTC_CNT_2S;
t32k = R16_RTC_CNT_32K;
t = sec2 * 2 + ((t32k < 0x8000) ? 0 : 1);
*py = BEGYEAR;
while(day >= YearLength(*py))
{
day -= YearLength(*py);
(*py)++;
}
*pmon = 0;
while(day >= monthLength(IsLeapYear(*py), *pmon))
{
day -= monthLength(IsLeapYear(*py), *pmon);
(*pmon)++;
}
(*pmon)++;
*pd = day + 1;
*ph = t / 3600;
*pm = t % 3600 / 60;
*ps = t % 60;
}
/*********************************************************************
* @fn RTC_SetCycle32k
*
* @brief 基于LSE/LSI时钟，配置当前RTC 周期数
*
* @param cyc - 配置周期计数初值，MAX_CYC = 0xA8BFFFFF = 2831155199
*
* @return none
*/
void RTC_SetCycle32k(uint32_t cyc)
{
volatile uint8_t clk_pin;
do
{
clk_pin = (R8_CK32K_CONFIG & RB_32K_CLK_PIN);
} while((clk_pin != (R8_CK32K_CONFIG & RB_32K_CLK_PIN)) || (!clk_pin));
sys_safe_access_enable();
R32_RTC_TRIG = cyc;
R8_RTC_MODE_CTRL |= RB_RTC_LOAD_LO;
sys_safe_access_disable();
}
/*********************************************************************
* @fn RTC_GetCycle32k
*
* @brief 基于LSE/LSI时钟，获取当前RTC 周期数
*
* @param none
*
* @return 当前周期数，MAX_CYC = 0xA8BFFFFF = 2831155199
*/
__HIGH_CODE
uint32_t RTC_GetCycle32k(void)
{
volatile uint32_t i;
do
{
i = R32_RTC_CNT_32K;
} while(i != R32_RTC_CNT_32K);
return (i);
}
/*********************************************************************
* @fn RTC_TMRFunCfg
*
* @brief RTC定时模式配置（注意定时基准固定为32768Hz）
*
* @param t - refer to RTC_TMRCycTypeDef
*
* @return none
*/
void RTC_TMRFunCfg(RTC_TMRCycTypeDef t)
{
sys_safe_access_enable();
R8_RTC_MODE_CTRL &= ~(RB_RTC_TMR_EN | RB_RTC_TMR_MODE);
sys_safe_access_disable();
sys_safe_access_enable();
R8_RTC_MODE_CTRL |= RB_RTC_TMR_EN | (t);
sys_safe_access_disable();
}
/*********************************************************************
* @fn RTC_TRIGFunCfg
*
* @brief RTC时间触发模式配置
*
* @param cyc - 相对当前时间的触发间隔时间，基于LSE/LSI时钟周期数
*
* @return none
*/
void RTC_TRIGFunCfg(uint32_t cyc)
{
uint32_t t;
t = RTC_GetCycle32k() + cyc;
if(t > RTC_MAX_COUNT)
{
t -= RTC_MAX_COUNT;
}
sys_safe_access_enable();
R32_RTC_TRIG = t;
R8_RTC_MODE_CTRL |= RB_RTC_TRIG_EN;
sys_safe_access_disable();
}
/*********************************************************************
* @fn RTC_ModeFunDisable
*
* @brief RTC 模式功能关闭
*
* @param m - 需要关闭的当前模式
*
* @return none
*/
void RTC_ModeFunDisable(RTC_MODETypeDef m)
{
uint8_t i = 0;
if(m == RTC_TRIG_MODE)
{
i |= RB_RTC_TRIG_EN;
}
else if(m == RTC_TMR_MODE)
{
i |= RB_RTC_TMR_EN;
}
sys_safe_access_enable();
R8_RTC_MODE_CTRL &= ~(i);
sys_safe_access_disable();
}
/*********************************************************************
* @fn RTC_GetITFlag
*
* @brief 获取RTC中断标志
*
* @param f - refer to RTC_EVENTTypeDef
*
* @return 中断标志状态
*/
uint8_t RTC_GetITFlag(RTC_EVENTTypeDef f)
{
if(f == RTC_TRIG_EVENT)
{
return (R8_RTC_FLAG_CTRL & RB_RTC_TRIG_FLAG);
}
else
{
return (R8_RTC_FLAG_CTRL & RB_RTC_TMR_FLAG);
}
}
/*********************************************************************
* @fn RTC_ClearITFlag
*
* @brief 清除RTC中断标志
*
* @param f - refer to RTC_EVENTTypeDef
*
* @return none
*/
void RTC_ClearITFlag(RTC_EVENTTypeDef f)
{
switch(f)
{
case RTC_TRIG_EVENT:
R8_RTC_FLAG_CTRL = RB_RTC_TRIG_CLR;
break;
case RTC_TMR_EVENT:
R8_RTC_FLAG_CTRL = RB_RTC_TMR_CLR;
break;
default:
break;
}
}
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