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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SPI主机中断方式收发数据功能，SPI主机发送5个数据，并从从机读取5个数据。

Function descriptions:
This sample demonstrates the function of sending and receiving data in the SPI 
master interrupt mode. The SPI master sends five pieces of data and reads five 
pieces of data from the slave.
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测试环境：
测试用板：DPM32M036_REV_A
MDK版本： 5.28

Test environment:
Test board: DPM32M036_REV_A
MDK Version: 5.28
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使用步骤：
1. 编译下载程序到MCU，并运行。

Example execution steps:
1. Compile and download the program to MCU, and run it.

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注意事项：
SPI引脚如下：
SPI0_NSS   -> PA15
SPI0_CLK   -> PB3
SPI0_MSIO  -> PB4
SPI0_MOSI  -> PB5

Notes:
The SPI pins are as follows:
SPI0_NSS   -> PA15
SPI0_CLK   -> PB3
SPI0_MSIO  -> PB4
SPI0_MOSI  -> PB5
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