Hi

We have developed a custom board with atmel at91sam9xe512 chip. We have connected a nor flash chip to atmel in NCS0. The nor flash chip is Spansion S29GL512P. Nor flash ready/busy signal is connected to fpga and iam driving it as '1'. Reset signal is connected to fpga and iam driving it as '1'.

I have loaded the applet of norflash using sam-ba-2.10. If I execute the command Enable norflash Iam getting the following messages
-I- -- Compiled: Jun 9 2011 16:18:15 --
-I- INIT command
-I- Common Flash Interface detecting...
-I- Try bus width 8 bits
-I- Try bus width 16 bits
-I- Try bus width 32 bits
-I- Device Unknown
-I- End of applet (command : 0 --- status : 1)

Iam getting the message device unknown
If I try to read the content of 0x10000000 of norflash Iam getting all zero's

I have tried the following settings in the SMC registers also

AT91C_BASE_SMC->SMC_SETUP0 = 0x3f3f3f3f;
AT91C_BASE_SMC->SMC_PULSE0 = 0x7f7f7f7f;
AT91C_BASE_SMC->SMC_CYCLE0 = 0x01ff01ff;
AT91C_BASE_SMC->SMC_CTRL0 = 0x000f1003;

or

AT91C_BASE_SMC->SMC_SETUP0 = 0x0a0a0a0a;
AT91C_BASE_SMC->SMC_PULSE0 = 0x0b0b0b0b;
AT91C_BASE_SMC->SMC_CYCLE0 = 0x00160016;
AT91C_BASE_SMC->SMC_CTRL0 = 0x00161003;
or
AT91C_BASE_SMC->SMC_SETUP0 = 0x00000002;
AT91C_BASE_SMC->SMC_PULSE0 = 0x0A0A0A06;
AT91C_BASE_SMC->SMC_CYCLE0 = 0x000A000A;
AT91C_BASE_SMC->SMC_CTRL0 = (AT91C_SMC_READMODE|AT91C_SMC_WRITEMODE
| AT91C_SMC_NWAITM_NWAIT_DISABLE
| ((0x1 << 16) & AT91C_SMC_TDF));

In all the above three cases i could not access the nor flash
Please help me to resolve this issue

Thanks