Hello there,
I am using a DPRAM as component in the SOPC Builder, I just used the
DPRAM_TopLevel.vhd from the LPM_megafunction_wizard as HDL-File for the
own component (after Avalon-Slave Interface assignments) and it properly
worked.
I get access to the DPRAM whithout any problems when I use:
IOWR(DPRAM_BASE, Offset, 0x12345678);
IORD(DPRAM_BASE, Offset);
But when I try to dereference a pointer to DPRAM_BASE I cannot write a “word” to the DPRAM.
My function is as implemented as followed.
volatile unsigned int *ptr;
void TestDPRAM(void)
{
int i = 0;
ptr = (unsigned int*)(DPRAM _BASE);
for (i=0; i<DPRAM_SPAN;i++)
{
*ptr = (unsigned int)0x12345678;
printf("\Addresse: %x\t",(unsigned int)ptr);
printf("\tValue: %x",(int)*ptr);
ptr = ptr+1;
}
}
Do you have any advice what is going wrong?
