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TMS320F28335: dsp和32spi通信

Part Number: TMS320F28335

我是将stm32作为主机,28335作为从机,传输的是8位数据,现在的问题是dsp是能够接收到数据,但是dsp发送数据,stm32接收并在串口调试助手上显示全为00