萌新,求助各位朋友:
问题如下:TMS320VC5502芯片CE1引脚接S29AL008的Flash,我想知道除了EMIF_CE01,EMIF_CE02寄存器需要配置之外,以下初始化中还有哪个部分需要配置。在网上找了一些资料讲的没有很具体,也看了点数据手册,原谅全英文理解的有点差劲。希望指点,谢谢。
void SDRAM_init( void )
{
ioport unsigned int *XBCR =(unsigned int *)0x8800;
ioport unsigned int *EMIF_GCTL1 =(unsigned int *)0x800;
ioport unsigned int *EMIF_GCTL2 =(unsigned int *)0x801;
ioport unsigned int *EMIF_CE11 =(unsigned int *)0x802;
ioport unsigned int *EMIF_CE12 =(unsigned int *)0x803;
ioport unsigned int *EMIF_CE01 =(unsigned int *)0x804;
ioport unsigned int *EMIF_CE02 =(unsigned int *)0x805;
ioport unsigned int *EMIF_CE21 =(unsigned int *)0x808;
ioport unsigned int *EMIF_CE22 =(unsigned int *)0x809;
ioport unsigned int *EMIF_CE31 =(unsigned int *)0x80A;
ioport unsigned int *EMIF_CE32 =(unsigned int *)0x80B;
ioport unsigned int *EMIF_SDCNT1 =(unsigned int *)0x80C;
ioport unsigned int *EMIF_SDCNT2 =(unsigned int *)0x80D;
ioport unsigned int *EMIF_SDREF1 =(unsigned int *)0x80E;
ioport unsigned int *EMIF_SDREF2 =(unsigned int *)0x80F;
ioport unsigned int *EMIF_SDEXT1 =(unsigned int *)0x810;
ioport unsigned int *EMIF_SDEXT2 =(unsigned int *)0x811;
ioport unsigned int *EMIF_CE1SECCTL1 =(unsigned int *)0x822;
ioport unsigned int *EMIF_CE1SECCTL2 =(unsigned int *)0x823;
ioport unsigned int *EMIF_CE0SECCTL1 =(unsigned int *)0x824;
ioport unsigned int *EMIF_CE0SECCTL2 =(unsigned int *)0x825;
ioport unsigned int *EMIF_CE2SECCTL1 =(unsigned int *)0x828;
ioport unsigned int *EMIF_CE2SECCTL2 =(unsigned int *)0x829;
ioport unsigned int *EMIF_CE3SECCTL1 =(unsigned int *)0x82A;
ioport unsigned int *EMIF_CE3SECCTL2 =(unsigned int *)0x82B;
ioport unsigned int *EMIF_CECTL1 =(unsigned int *)0x840;
ioport unsigned int *EMIF_CECTL2 =(unsigned int *)0x841;
*XBCR =0x0;
*EMIF_GCTL1 =0x277C;
*EMIF_GCTL2 =0x0009;
*EMIF_CE11 =0xFF13;
*EMIF_CE12 =0xFFFF;
*EMIF_CE01 =0xFF93;
*EMIF_CE02 =0xFFFF;
*EMIF_CE21 =0xFF23;
*EMIF_CE22 =0xFFFF;
*EMIF_CE31 =0xFF13;
*EMIF_CE32 =0xFFFF;
*EMIF_SDCNT1 =0xF000;
*EMIF_SDCNT2 =0x0648;
*EMIF_SDREF1 =0x1001;
*EMIF_SDREF2 =0x0000;
*EMIF_SDEXT1 =0x5F3F;
*EMIF_SDEXT2 =0x0017;
*EMIF_CE1SECCTL1 =0x0002;
*EMIF_CE1SECCTL2 =0x0000;
*EMIF_CE0SECCTL1 =0x0002;
*EMIF_CE0SECCTL2 =0x0000;
*EMIF_CE2SECCTL1 =0x0002;
*EMIF_CE2SECCTL2 =0x0000;
*EMIF_CE3SECCTL1 =0x0002;
*EMIF_CE3SECCTL2 =0x0000;
*EMIF_CECTL1 =0x0000;
*EMIF_CECTL2 =0x0000;
}
友情提示: 此问题已得到解决,问题已经关闭,关闭后问题禁止继续编辑,回答。
一周热门 更多>