void Timerx_Init(GPTM_TypeDef* GPTMx,u16 arr,u16 psc)
{
GPTM_TimeBaseInitTypeDef GPTM_TimeBaseStructure;
//NVIC_InitTypeDef NVIC_InitStructure;
Assert_Param(IS_GPTM(GPTMx));
if(GPTMx==GPTM0)
{
CKCU_APBPerip1ClockConfig(CKCU_APBEN1_GPTM0,ENABLE);
}
else if(GPTMx==GPTM1)
{
CKCU_APBPerip1ClockConfig(CKCU_APBEN1_GPTM1,ENABLE);
}
GPTM_DeInit(GPTMx);
GPTM_TimeBaseStructure.CounterReload = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值 计数到5000为500ms
GPTM_TimeBaseStructure.Prescaler =(7200-1); //设置用来作为TIMx时钟频率除数的预分频值 10Khz的计数频率
GPTM_TimeBaseStructure.PSCReloadTime = GPTM_PSC_RLD_UPDATE;//无事件发生，等待下一次重载//TIM 中断源
GPTM_TimeBaseStructure.CounterMode = GPTM_CNT_MODE_UP; //TIM向上计数模式
GPTM_TimeBaseInit(GPTMx, &GPTM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
/* TIM IT enable */
GPTM_IntConfig( //使能或者失能指定的TIM中断
GPTMx, //TIMx
TIM_IT_Update | //TIM 中断源
TIM_IT_Trigger, //TIM 触发中断源
ENABLE //使能
);
/* Enable the TIMx global Interrupt */
if(GPTMx==GPTM0)
{
NVIC_SetPriority(GPTM0_IRQn,NVIC_EncodePriority(5,0,3));
NVIC_EnableIRQ(GPTM0_IRQn);
GPTM_IntConfig(GPTM0,GPTM_INT_UEV,ENABLE);
}
else
if(GPTMx==GPTM1)
{
NVIC_SetPriority(GPTM1_IRQn,NVIC_EncodePriority(5,0,3));
NVIC_EnableIRQ(GPTM1_IRQn);
GPTM_IntConfig(GPTM1,GPTM_INT_UEV,ENABLE);
}
/*
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从优先级3级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
*/
GPTM_Cmd(GPTMx, ENABLE); //使能TIMx外设
}
/*********************************************************************************************************//**
* @brief Configures the system clocks.
* @brief None
***********************************************************************************************************/
void CKCU_Configuration(void)
{
/*------------------------------------------------------------------------------------------------------*/
/* APB Peripheral 1 Enable */
/* - CKCU_APBEN1_WDT, CKCU_APBEN1_RTC, CKCU_APBEN1_GPTM0, CKCU_APBEN1_GPTM1 */
/* - CKCU_APBEN1_OPA0, CKCU_APBEN1_OPA1, CKCU_APBEN1_ADC */
/*------------------------------------------------------------------------------------------------------*/
CKCU_APBPerip1ClockConfig(CKCU_APBEN1_WDT, ENABLE);
}
/*********************************************************************************************************
* @brief Calendar program.
* @retval None
********************************************************************************************************/
void Calendar(void)
{
CKCU_APBPerip1ClockConfig(CKCU_APBEN1_RTC, ENABLE);
if(PWRCU_CheckReadyAccessed() != PWRCU_OK)
{
while(1);
}
/* Init LED3 and USART */
LED_Configuration();
USART_Configuration();
/* Enable NVIC RTC interrupt */
NVIC_EnableIRQ(RTC_IRQn);
/* Check if the Power On Reset flag is set */
if(PWRCU_GetFlagStatus() == PWRCU_FLAG_BAKPOR)
{
printf("\r\n\n Power On Reset occurred....");
}
if(PWRCU_ReadBackupRegister(PWRCU_BAKREG_0) != 0x5A5A)
{
u32 wInitTime = 0;
/* Backup data register value is not correct or not yet programmed (when
the first time the program is executed) */
printf("\r\n\n RTC not yet configured....");
/* RTC Configuration */
RTC_Configuration();
printf("\r\n RTC configured....");
/* Adjust time by values entred by the user on the hyperterminal,
Then store the init time to PWRCU_BAKREG_1. */
wInitTime = Time_Regulate() ;
PWRCU_WriteBackupRegister(PWRCU_BAKREG_1, wInitTime);
/* Reset RTC Counter when Time is 23:59:59 */
RTC_SetCompare(86400 - wInitTime) ;
PWRCU_WriteBackupRegister(PWRCU_BAKREG_0, 0x5A5A);
/* Enable RTC */
RTC_Cmd(ENABLE) ;
}
else
{
printf("\r\n No need to configure RTC....");
}
/* Display current time in infinite loop */
printf("\n\r");
while (1)
{
/* If 1s has paased */
if(gwTimeDisplay == 1)
{
/* Display current time.
Current time is sum of the RTC counter value and the init time(stored in PWRCU_BAKREG_1 register).
The init time (PWRCU_BAKREG_1 register) will be clear if the RTC Match flag(CMFLAG) is set.
Refer to RTC_IRQHandler. */
Time_Display(RTC_GetCounter() + PWRCU_ReadBackupRegister(PWRCU_BAKREG_1));
gwTimeDisplay = 0;
}
}
}
