Interface Design of Serial A/D Converter and TMS320VC54XX
HU Mai-ling · Journal of Gun Launch & Control · 2008
Connection between parallel-based A/D converter and DSP was complicated and need to design a corresponding coding electrocircuit,so interferential and instability factor in some degree were introduced.A method of taking serial A/D converter AD7274 as analog signal input of DSP system was put forward,the method considered Multi-channel Buffered Serial Port(McBSP)characteristics of high speed fix-point Digital Signal Processor TMS320VC5416 and operational principles of the A/D converter.It can solve the complicated problem of A/D converter interface by means of parallel data transmission system.On the basis of this,the interface design method of the McBSP of TMS320VC5416 DSP and serial A/D converter was discussed.The hardware design and the corresponding software design were given.And the simplified performances of interface was also realized so as to ensure operation stability of the system.