hpi.c

单片机于DSP通过主机接口（HPI)进行通信

#include "REG5402.h"
void cpu_init()
{
  PMST=0x3FA0;
  SWWSR=0x7FFF;
  SWCR=0x0000;
  IMR=0;
  IFR=IFR;
  IMR=IMR|0x0200;
}
void main()
{
   unsigned char i,j;
   cpu_init();
   for(;;)
    {
      i=TX_BUFFER;
      j=0xFF-i;
      RX_BUFFER=j;
      *(pmem+0x2C)=0x0A;
     }
}