【AT-START-L021测评】时钟日历从串口发出
1，打开原来串口通信的项目里面加入rtc时钟
2，生成代码。里面包括下面文件
3，主程序中加入如下代码
- int main(void)
- {
- /* add user code begin 1 */
- ertc_time_type time;
- uint32_t temp = 0;
- /* add user code end 1 */
- /* system clock config. */
- wk_system_clock_config();
- /* config periph clock. */
- wk_periph_clock_config();
- /* nvic config. */
- wk_nvic_config();
- /* timebase config. */
- wk_timebase_init();
- /* init usart1 function. */
- wk_usart1_init();
- /* init ertc function. */
- wk_ertc_init();
- /* init gpio function. */
- wk_gpio_config();
- /* add user code begin 2 */
-
- /* add user code end 2 */
- while(1)
- {
- /* add user code begin 3 */
- //if((usart1_rx_counter>=4)&&(usart1_rx_buffer[0]=='s')&&(usart1_rx_buffer[1]=='e')&&(usart1_rx_buffer[2]=='n')&&(usart1_rx_buffer[3]=='d'))
- {
- int i =0;
-
-
- gpio_bits_reset(led4_GPIO_PORT, led4_PIN);
- gpio_bits_reset(led2_GPIO_PORT, led2_PIN | led3_PIN);
- wk_delay_ms(100);//DelayMs(1000);
-
- gpio_bits_set(led4_GPIO_PORT, led4_PIN);
- gpio_bits_set(led2_GPIO_PORT, led2_PIN | led3_PIN);
- wk_delay_ms(100);//DelayMs(1000);
- wk_delay_ms(5);
- usart1_rx_counter=0;
- usart1_rx_buffer[0]=0;
- usart1_rx_buffer[1]=0;
- usart1_rx_buffer[2]=0;
- usart1_rx_buffer[3]=0;
-
- usart1_tx_counter=0;
- ertc_calendar_get(&time);
- if(temp != time.sec)
- {
- temp = time.sec;
- /* display date format : year-month-day */
- sprintf((char *)usart1_tx_buffer,"%02d-%02d-%02d ",time.year, time.month, time.day);
- for(i =0;i<9;i++)
- {
- usart_data_transmit(USART1, usart1_tx_buffer[i]);
- wk_delay_ms(2);
- }
- /* display time format : hour:min:sec */
- sprintf((char *)usart1_tx_buffer,"%02d:%02d:%02d",time.hour, time.min, time.sec);
- for(i =0;i<8;i++)
- {
- usart_data_transmit(USART1, usart1_tx_buffer[i]);
- wk_delay_ms(2);
- }
- }
- }
- /* add user code end 3 */
- }
- }
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