enc28j60问题，求解

zhuanghaiyang

   // do bank 3 stuff
   // write MAC address
   // NOTE: MAC address in ENC28J60 is byte-backward
   enc28j60Write(MAADR5, macaddr[0]);  
   enc28j60Write(MAADR4, macaddr[1]);
   enc28j60Write(MAADR3, macaddr[2]);
   enc28j60Write(MAADR2, macaddr[3]);
   enc28j60Write(MAADR1, macaddr[4]);
   enc28j60Write(MAADR0, macaddr[5]);

//   printf("MAADR5 = 0x%x\r\n", enc28j60Read(MAADR5));
//   printf("MAADR4 = 0x%x\r\n", enc28j60Read(MAADR4));
//   printf("MAADR3 = 0x%x\r\n", enc28j60Read(MAADR3));
//   printf("MAADR2 = 0x%x\r\n", enc28j60Read(MAADR2));
//   printf("MAADR1 = 0x%x\r\n", enc28j60Read(MAADR1));
//   printf("MAADR0 = 0x%x\r\n", enc28j60Read(MAADR0));
   DATA = enc28j60Read(MAADR5); //写入值为04，读出却为0
   DATA = enc28j60Read(PHCON1); //之前末写入，读出值为默认值
   enc28j60PhyWrite(PHCON1, PHCON1_PDPXMD);

//把MAC地址写入到寄存器里，然后读出，值不对，是怎么回事？没有写进去吗？读应该是没问题的，读PHCON1寄存器得到手册里的默认值，求解？

正点原子

电路是否正常？