I use 4 * 64MB SDRAM devices to get 256MB DDR memory. Each bank has 2 SDRAM.
But I can only access the first 64MB of bank0. When I access the second 64MB of bank0, there is a warning msg:"External
memory is disabled for this region of memory".
Here is my configuration:
*pEBIU_RSTCTL |= 0x01
*pEBIU_DDRCTL0 = 0x218A8411
*pEBIU_DDRCTL1 = 0x20026222
*pEBIU_DDRCTL2 = 0x00000021
*pEBIU_DDRCTL3 = 0x00000020
How can I access the full rang of 256MB?Thx.