I have a 6416 board,now I want to boot my program from flash, so now I configure EMIFB CE1 to let me burn data into the
flash (AMD29lv320d) , here is my code:
/**
* Initialize EMIFB
*/
void EmifInit()
{
/* config EMIFB */
EMIFB_configArgs(
/* gblctl */
/* ek2rate,ek2hz,ek2en,brmode,nohold,ek1hz,ek1en */
EMIFB_GBLCTL_RMK(
EMIFB_GBLCTL_EK2RATE_QUARCLK,
EMIFB_GBLCTL_EK2HZ_CLK,
EMIFB_GBLCTL_EK2EN_ENABLE,
EMIFB_GBLCTL_BRMODE_MSTATUS,
EMIFB_GBLCTL_NOHOLD_DISABLE,
EMIFB_GBLCTL_EK1HZ_CLK,
EMIFB_GBLCTL_EK1EN_ENABLE
),
/* cectl0 */
/* wrsetup,wrstrb,wrhld,rdsetup,ta,rdstrb,mtype,wrhldmsb,rdhld */
0x00000000,
/* cectl1 for flash */
EMIFB_CECTL_RMK(
EMIFB_CECTL_WRSETUP_OF(2),
EMIFB_CECTL_WRSTRB_OF(2),
EMIFB_CECTL_WRHLD_OF(2),
EMIFB_CECTL_RDSETUP_OF(1),
EMIFB_CECTL_TA_OF(3),
EMIFB_CECTL_RDSTRB_OF(3),
EMIFB_CECTL_MTYPE_ASYNC8,
EMIFB_CECTL_WRHLDMSB_OF(1),
EMIFB_CECTL_RDHLD_OF(1)
),
0x00000030, /* cectl2 */
0x00000000, /* cectl3 */
0x00000000, /* sdctl */
0x00000000, /* sdtim */
0x00000000, /* sdext */
0x00000000, /* cesec0 */
0x00000000, /* cesec1 */
0x00000000, /* cesec2 */
0x00000000 /* cesec3 */
);
}
/*******************************************************************/
/* void main(void) */
/*******************************************************************/
void main(void)
{
int i;
/* initialize the CSL library */
CSL_init();
/* initialize EMIF for flash */
EmifInit();
// read Manufacturer ID
for(i=0;i<0xFFFF;i++);
*((volatile Uint8*)0x64000AAA) = 0xAA; // AAA AA
for(i=0;i<0xFFFF;i++);
*((volatile Uint8*)0x64000555) = 0x55; // 555 55
for(i=0;i<0xFFFF;i++);
*((volatile Uint8*)0x64000AAA) = 0x90; // AAA 90
for(i=0;i<0xFFFF;i++);
printf("ID=%d\n",*(volatile Uint8 *)0x64000000);
printf("Test is over\n");
}
unfortunately, the result of running is:
ID=255
Test is over
I know that's not correct, according to the AMD datasheet, the ID should be 01.
The clock is 160 MHz, / 4 (I use QUARCLK) .
Is there somebody tell me why, thanks!
