manager.c

网络中交换节点的上数据的交换和下行数据分发的硬件实现

#include <c6x.h>
#include "reg.h"
#include "head.h"
 void ini()
  {  
     unsigned volatile int *temp,j;
    
    /* dsp and peripheral initialization */    
    CSR=0x100;		       	       /* disable all interrupts            */
    IER=1;                           /* disable all interrupts except NMI */
    ICR=0xffff;                      /* clear all pending interrupts      */

      
    *(unsigned volatile int *)GBLCTL = 0x00003779;//设置GBLCTL寄存器，不使能clockout2
    *(unsigned volatile int *)CECTL1 = 0x23b1d523;//设置CE1CTL寄存器，用于控制FLASH存储器
    *(unsigned volatile int *)CECTL2 = 0x2AB22A23;//设置CE2CTL寄存器，用于控制加密芯片和串并转换器  
  // *(unsigned volatile int *)CECTL2 = 0x30a3c622;
     *(unsigned volatile int *)AUXCTL = 0x00000010;//设置AUXCTL寄存器，用于确定DMA辅助通道的优先级。
    //配置TIMER0,TIMER1为GPIO
    *(unsigned volatile int *)CTL0   = 0x00000204;//ok
    *(unsigned volatile int *)CTL1   = 0x00000204;//ok
        
    // 配置MSBSP为GPIO
    temp = (unsigned volatile int *)0x18C00008;
    //*(unsigned volatile int *)SPCR0  = 0x00000000;//XRST=RRST=0 
    *(unsigned volatile int *)temp   = 0x00000000;//XRST=RRST=0 
    *(unsigned volatile int *)SPCR1  = 0x00000000;//XRST=RRST=0 
    *(unsigned volatile int *)PCR0   = 0x00003fff;//XIOEN=RIOEN=1  其他输出置高 
    *(unsigned volatile int *)PCR1   = 0x00003fff;//XIOEN=RIOEN=1  其他输出置高 
    //复位SSP02 ,复位RSA
    *(unsigned volatile int *)CTL0   = *(unsigned volatile int *)CTL0 & 0xfffffffb;//ssp02
    *(unsigned volatile int *)PCR0   = *(unsigned volatile int *)PCR0 & 0xfffffffe;
    for(j=0;j<0x20;j++)
   { asm("nop");
     }
    *(unsigned volatile int *)CTL0   = *(unsigned volatile int *)CTL0 | 0x04 ;//ssp02
    *(unsigned volatile int *)PCR0   = *(unsigned volatile int *)PCR0 |0x01;
    
  } 
  
  
  void int_host()
  {
    
    *(unsigned volatile int *)0x01A40008= 0xffffffff;
    *(unsigned volatile int *)0x018C0024 = *(unsigned volatile int *)0x018C0024 | 0x02;
   *(unsigned volatile int *)0x018C0024 = *(unsigned volatile int *)0x018C0024 & 0xfffffffd;

  }