Hi All,
We have designed a Quad Processor Board( '4' DSP Processor TMS320C6678), We have followed the Length Matching Constraints.DDR3 Chip we are using is MT41K128M16 - Vendor MICRON, Size 1GB.
Our Board Design consist of 72-bit (64-bit plus ECC) single-rank DDR3 DRAM topology using x16 DRAMs. For DSP1, DSP2, DSP4 the DDR3 is Working Fine.
But For DSP3 We can't able to access even a single DDR3 locations.
I have also Attached the DDR3 PHY Calc v10.xsl and DDR3 Register Calc v4.xls of DSP3.
I Have also attached the Memory Browser screen shot before and after accessing the DDR3.
Before Acessing DDR3:
After Accessing DDR3:
7888.DDR3 Register Calc v4.xls
What Can be an issue.
Can any one provide ideas or suggestion for this issues. Thanks in Advance.
Regards ,
Avinash N