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TMS320F28335: SCI通讯

Part Number: TMS320F28335


应用SCI的A组通讯,做一个简单的收发控制,作为从机,将接受到的数据通过一个数组原路返回给上位机(ComMonitor)。将发送任务函数放入到定时器0中,设置定时器周期为10ms,可以正常收发信息,接受和发送的数据一致,但是将定时器设置为1ms,返回和发送信息完全不一样。SCI的时钟频率为默认的LSPCLK设置。这个问题是和定时器周期有关吗?