main.c

DSP+HPI系统。DSP开发系统的连接

#include <reg52.h>
sbit dsp_rest=P2^0;
main()
{
  unsigned int i;
  TMOD=0x20;
  EA=0;
  PX0=1;
  TL1=0xfe;//0xfa:19200,0xff:115200,0xf4:9600,0xfe:57600
  TH1=0xfe;
  PCON=0x80;
  TR1=1;
  SCON=0x50;
  REN=1;
  RI=0;
  dsp_rest=0;
  for(i=0;i<100;i++){;};
  dsp_rest=1; 
  SBUF='T';  while(TI!=1);TI=0;
  SBUF='E';  while(TI!=1);TI=0;
  SBUF='S';  while(TI!=1);TI=0;
  SBUF='T';  while(TI!=1);TI=0;
  SBUF=' ';  while(TI!=1);TI=0;
  SBUF='O';  while(TI!=1);TI=0;
  SBUF='K';  while(TI!=1);TI=0;
  while(1);

}