文件名称:main
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QQ2812通过SPI接口控制LED数码管 **
** SPI是一高速同步的串行输入输出口,它的通信速率和通信数据 **
** 长度都是可编程的,可以接收和发送16位的数据位,并且带有双 *缓冲的.SPI的4个外部引脚由：从输出主输入(SPISOMI),从输入主输出（SPISIMO）,从发送使能（/SPISTE）,串行时钟引脚(SPICLK)组成。-QQ2812 through the SPI interface to control LED digital tube**** SPI is a high-speed synchronous serial input and output ports, its communication rate and communication data**** length is programmable, and can receive and send 16-bit data bit, and with a double* buffering. SPI external pins from the 4: From the output of the primary input (SPISOMI), the main output from the input (SPISIMO), from sending enable (/ SPISTE), serial clock pin (SPICLK) component.
** SPI是一高速同步的串行输入输出口,它的通信速率和通信数据 **
** 长度都是可编程的,可以接收和发送16位的数据位,并且带有双 *缓冲的.SPI的4个外部引脚由：从输出主输入(SPISOMI),从输入主输出（SPISIMO）,从发送使能（/SPISTE）,串行时钟引脚(SPICLK)组成。-QQ2812 through the SPI interface to control LED digital tube**** SPI is a high-speed synchronous serial input and output ports, its communication rate and communication data**** length is programmable, and can receive and send 16-bit data bit, and with a double* buffering. SPI external pins from the 4: From the output of the primary input (SPISOMI), the main output from the input (SPISIMO), from sending enable (/ SPISTE), serial clock pin (SPICLK) component.
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