MA84G564时钟咋配？

只看该作者 · 2013-8-16 17:08

我配置的感觉不对，有高手帮解答下么，系统时钟32MHz

IFADRH = 0x00;
IFADRL = 0x40;
ISPCR |= 0x80;
IFMT = 0x04;
IFD = 0x10;
SCMD = 0x46;
SCMD = 0xb9;
for(i=0;i<50;i++);
IFADRH = 0x00;
IFADRL = 0x40;
ISPCR |= 0x80;
IFMT = 0x04;
IFD = 0x18;
SCMD = 0x46;
SCMD = 0xb9;
IFMT = 0x00;
ISPCR &= 0x7f;

只看该作者 · 2013-8-19 11:40

本帖最后由 MG_FAE 于 2014-2-24 09:10 编辑

      CKCON0 |= 0x40;                            //ENCKM
      IFADRH = 0x00;
      IFADRL = 0x44;                            //
      ISPCR |= 0x80;
      IFD=0x85;                                  //set HSE=1
      IFMT = 0x04;                            //write PCON2
      SCMD = 0x46;
      SCMD = 0xb9;

      IFADRH = 0x00;
      IFADRL = 0x40;
      IFD = 0x58;                                  //set MCKS1=1，set MCKS0=0
      IFMT = 0x04;                            //write CKCON2
      SCMD = 0x46;
      SCMD = 0xb9;

      IFMT = 0x00;
      ISPCR &= 0x7f;