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                                样例使用说明
                             Sample Description
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功能描述：
此样例演示了LPTIM的计数和中断功能，在LPTIM计数器溢出中断翻转LED2，串口输出日志，LED1
每隔1s翻转一次。

Function descriptions:
This example demonstrates the counting and interrupt functions of LPTIM. When 
the LPTIM counter overflows, the interrupt flips LED2 and the serial port outputs 
a log, LED1 Flip every 1 second.
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测试环境：
测试用板：DPM32M087RBTx_EVB V1.0
MDK版本： 5.28

Test environment:
Test board: DPM32M087RBTx_EVB V1.0
MDK Version: 5.28
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使用步骤：
1. 接上P10上的跳线帽，将串口接到USB。
2. 编译下载程序到MCU，并运行。
3. 串口输出日志。
4. 可观察到开发板上的LED1，LED2每隔1s翻转一次。

Example execution steps:
1. Connect the jumper cap on P10 and connect the serial port to USB.
2. Compile and download the program to MCU, and run it.
3. Serial port output logs.
4. It can be observed that LED1 and LED2 on the development board flips every 1 second.
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注意事项：
LED引脚如下：
LED1       -> PC10
LED2       -> PC11

UART引脚如下：
UART_Tx    -> PA9
UART_Rx    -> PA10

Notes:
The LED pins are as follows:
LED1       -> PC10
LED2       -> PC11

The UART pins are as follows:
UART_Tx    -> PA9
UART_Rx    -> PA10
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