Our customer have a packet loss issue at the field.
This application is IP Network Camera of Video Surveillance.
-. Could I get you any advice and setting for clear this issue? and receive root cause?
-. Could I get some test guide and setting of this Phy chip for Ethernet Compliance test at 100Mbps & 10Mbps?
Below is register value.
* Normal Set
Setting : 100Mb
BCMR(0x00): 0x3100BSMR(0x01): 0x786dPHYIDR1(0x02): 0x2000PHYIDR2(0x03): 0x5c90ANAR(0x04): 0x5e1ANLPAR(0x05): 0xc1e1PHYSTS(0x10): 0x0f15FCSCR(0x14): 0x0020RECR(0x15): 0x0000PCSR(0x16): 0x0100RBR(0x17): 0x0021 PHYCR(0x19): 0x802110BTSCR(0x1A): 0x0904CDCTRL1(0x1B): 0x0000EDCR(0x1D): 0x6011
* Abnormal Set
BCMR(0x00): 0x3100BSMR(0x01): 0x786dPHYIDR1(0x02): 0x2000PHYIDR2(0x03): 0x5c90ANAR(0x04): 0x5e1ANLPAR(0x05): 0xc1e1PHYSTS(0x10): 0x0f15FCSCR(0x14): 0x0020RECR(0x15): 0x0000PCSR(0x16): 0x0100RBR(0x17): 0x0025 <--> 0x0021 (Changed continuously) PHYCR(0x19): 0x802110BTSCR(0x1A): 0x0904CDCTRL1(0x1B): 0x0000EDCR(0x1D): 0x6011
Pls let me know If you have any request.
I'm looking forward to receiving your quick and good response.
Please see the following links in regards to the Ethernet Compliance tests.
- 10Mbps: e2e.ti.com/.../606335
- 100Mbps: https://e2e.ti.com/support/interface/f/138/p/803102/2972060#2972060
Regarding your packet loss issue, can you describe the problem more? What debug steps have you taken so far? Can you please send a schematic?
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In reply to Gerome Cacho:
Thanks for your reply.
Their CCTV camera image is broken because of packet loss.
They did compare the DP83848NRTAR register value of fail set and good set.
They are checking eye diagram on the ethernet tx/rx signal and ready to compliance test.
Could you explain me why underflow detected has happened on RBR register(0x17)?
Also, this underflow detected can make this packet loss issue?
I can't upload schematic on this case.
Could you please let me know your e-mail address?
I will send you it by e-mail.
Pls, give us what do we have to check and test for resolving this issue.
In reply to Michael Jeong1:
As this part is not available on TI.com, I would like to take this discussion offline. I have sent you a private message.
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