Hi
I'm working on WindRiver SBC8548E board.
I removed the 64MB Flash and plugged a peripheral IC (infineon
pef20525) , as you can understand I will try to test my software for
this IC by using local bus.
So there are some timing, chip select,read/write enable and
addressing issues.

From the memory map in BSP documents I found out that Chip select for
64MB Flash Sodim is CS6 which has the address of
#define LBC_CS6_LOCAL_ADRS 0xfb800000

When I try to set cs6 with this code

void set_cs6()
{
*((volatile UINT8 *)(LBC_CS6_LOCAL_ADRS))=1;
}
I have following error

->
-> set_cs6

data storage
Exception current instruction address: 0x06411c80
Machine Status Register: 0x02029230
Data Exception Address Register: 0xfb800000
Condition Register: 0x80000280
Exception Syndrome Register: 0x00800000

0x001292a4 vxTaskEntry +0x5c : 0x001e6550 ()
0x001e6550 shellTask +0x528: shellExec ()
0x001e5f94 shellExec +0x1b8: 0x001e12dc ()
0x001e14f0 shellInterpCparse+0x1078: shellInterpCparse ()
0x001e0fe0 shellInterpCparse+0xb68: 0x001dd474 ()
0x001dd49c shellInterpCInit+0x13e4: 0x001dd184 ()
0x001dd1ac shellInterpCInit+0x10f4: 0x001dd004 ()
0x001dd0c0 shellInterpCInit+0x1008: shellInternalFunctionCall ()
0x001d89fc shellInternalFunctionCall+0xa4 : set_cs6 ()

Shell task 'tShell0' restarted...

->
0x001292a4 vxTaskEntry +0x5c : 0x001e6550 ()
0x001e6550 shellTask +0x528: shellExec ()
0x001e5e60 shellExec +0x84 : 0x001e3e70 ()
0x001e3ed4 shellTaskDefaultBaseNameGet+0x434: ledRead ()
0x001d2e34 ledRead +0xa4 : 0x001e92a0 ()
0x001e9470 viLedLibInit +0x1f0: read ()
0x001b9b1c read +0x88 : tyRead ()
0x001c3308 tyRead +0x28 : semTake ()
0x0020ab40 semTake +0x178: semBTake ()

Shell task 'tShell0' restarted...


can someone tell me where is my mistake or is there a problem with
switches on the board.

regards