//实时时钟配置
//初始化RTC时钟,同时检测时钟是否工作正常
//BKP->DR1用于保存是否第一次配置的设置
//返回0:正常
//其他:错误代码
u8 RTC_Init(void)
{
//检查是不是第一次配置时钟
u8 temp=0;
if(BKP->DR1!=0X5050)//第一次配置
{
RCC->APB1ENR|=1<<28; //使能电源时钟
RCC->APB1ENR|=1<<27; //使能备份时钟
PWR->CR|=1<<8; //取消备份区写保护
RCC->BDCR|=1<<16; //备份区域软复位
RCC->BDCR&=~(1<<16); //备份区域软复位结束
RCC->BDCR|=1<<0; //开启外部低速振荡器
while((!(RCC->BDCR&0X02))&&temp<250)//等待外部时钟就绪
{
temp++;
delay_ms(10);
};
if(temp>=250)return 1;//初始化时钟失败,晶振有问题
RCC->BDCR|=1<<8; //LSI作为RTC时钟
RCC->BDCR|=1<<15;//RTC时钟使能
while(!(RTC->CRL&(1<<5)));//等待RTC寄存器操作完成
while(!(RTC->CRL&(1<<3)));//等待RTC寄存器同步
RTC->CRH|=0X01; //允许秒中断
while(!(RTC->CRL&(1<<5)));//等待RTC寄存器操作完成
RTC->CRL|=1<<4; //允许配置
RTC->PRLH=0X0000;
RTC->PRLL=32767; //时钟周期设置(有待观察,看是否跑慢了?)理论值：32767
Auto_Time_Set();
//RTC_Set(2009,12,2,10,0,55); //设置时间
RTC->CRL&=~(1<<4); //配置更新
while(!(RTC->CRL&(1<<5))); //等待RTC寄存器操作完成
BKP->DR1=0X5050;
//BKP_Write(1,0X5050);;//在寄存器1标记已经开启了
//printf("FIRST TIME\n");
}else//系统继续计时
{
while(!(RTC->CRL&(1<<3)));//等待RTC寄存器同步
RTC->CRH|=0X01; //允许秒中断
while(!(RTC->CRL&(1<<5)));//等待RTC寄存器操作完成
//printf("OK\n");
}
MY_NVIC_Init(0,0,RTC_IRQChannel,2);//RTC,G2,P2,S2.优先级最低
RTC_Get();//更新时间
return 0; //ok
}
/**@brief Function for application main entry.
*/
int main(void)
{
// Initialize
// nrf_gpio_cfg_output(23);
// nrf_gpio_pin_write(23, 0);
// nrf_gpio_pin_write(23, 1);
// nrf_delay_ms(1000);
// nrf_gpio_pin_write(23, 0);
uart_init();
leds_init();
timers_init();
gpiote_init();
buttons_init();
app_button_enable();
wdt_init();
#ifdef DEBUG_LOG
printf("uart_init\r\n");
printf("leds_init\r\n");
printf("timers_init\r\n");
printf("gpiote_init\r\n");
printf("buttons_init\r\n");
printf("wdt_init\r\n");
#endif
bond_manager_init();
ble_stack_init();
gap_params_init();
#ifdef DEBUG_LOG
printf("bond_manager_init\r\n");
printf("ble_stack_init\r\n");
printf("gap_params_init\r\n");
#endif
advertising_init(BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE);
services_init();
conn_params_init();
sec_params_init();
radio_notification_init();
#ifdef DEBUG_LOG
printf("advertising_init\r\n");
printf("services_init\r\n");
printf("conn_params_init\r\n");
printf("radio_notification_init\r\n");
#endif
advertising_start();
#ifdef DEBUG_LOG
printf("advertising_start\r\n");
#endif
HTU21D_Init();
#ifdef DEBUG_LOG
printf("HTU21D_Init\r\n");
printf("OLED_Init\r\n");
#endif
my_timer_init();
Auto_Time_Set();
#ifdef DEBUG_LOG
printf("rtc my_timer_init\r\n");
printf("Auto_Time_Set\r\n");
#endif
wdt_start();
#ifdef DEBUG_LOG
printf("wdt_start\r\n");
printf("Enter main loop\r\n");
#endif
OLED_POWER_CONTROL(1);
nrf_delay_ms(2000);
OLED_POWER_CONTROL(0);
for (;;)
{
updata_by_min();
updata_by_hour();
power_manage();
}
}