Dear support,
We have our own designed boards using 2*C6670. The DSPs are connected using hyperlink and I am using the provided example to validate our hardware. I have a few simple questions.
1) On the C6670, the hyperlink example should provide token passing between 2 endpoints using EDMA or CPU IO. Only the second solution is implemented. Do you know if there was a problem using hyperlink with EDMA? Is this solution implemented on other platforms?
2) Running the default set up with hyplnk_EXAMPLE_SERRATE_10p000 works perfectly well, Running hyplnk_EXAMPLE_SERRATE_12p500 provides the following warnings "Remote after passing tokens WARNING: ECCErrors.sglErrCor = 1725" where signal integrity issues were detected but corrected. So here are my questions:
a) was the example tested at 12.5 GBps and was the signal integrity correct?
b) Each loop provides this amount of detected and corrected errors, is there published recommendation on how to improve the link?
3) finally, the example states the following "Link Speed is 4 * 12.5 Gbps - Passed 65536 tokens round trip (read+write through hyplnk) in 15960 Mcycles - Approximately 243540 cycles per round-trip. Does that mean that 4096 byes were written and read back in 243540 cycles?
Thanks in advance
Aymeric
