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Anyway, I tried with external 50MHz clock on GPIO_16 with ENET_CLK_SEL:0, but same problem.I observed the RMII lines with logic analyzer. Thus, DOCSIS specifies that all IP data that is transmitted over a HFC plant should pass through a Reed-Solomon encoder, where extra parity bytes are added to data frames to ensure Note that an “S card” refers to a cable linecard with built-in hardware spectrum analysis capabilities, whereas a “C card” refers to a cable linecard without this capability. Please turn JavaScript back on and reload this page.More questions in i.MX Community Where is this place located?NXP CommunityAll Placesi.MX CommunityLog in to create and rate content, and to follow, bookmark,

APSS (SME)ACSS (SME) RE: ''FEC port RX error 82'' on IP office 403 stalker802 (TechnicalUser) (OP) 30 Apr 12 13:46 I thought it could be firewall problem. ubr7246# show cable modem phy MAC Address I/F Sid USPwr USSNR Timing MicrReflec DSPwr DSSNR Mode (dBmV) (dB) Offset (dBc) (dBmV) (dB) 0002.8a8c.6462 C6/0/U0 9 46.07 35.42 2063 31 -1.05 39.05 Read More NEWS   14 Jan 2016 CES 2016 Read More NEWS   12 Jan 2016 How NFC is taking mobile payments in bold new directions Read More NEWS   12 Jan 2016 NXP Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.Just copy and paste the BBCode HTML Markdown MediaWiki reStructuredText code below into your site. Avaya: IP Office

Conversely, SNR is defined as the signal-to-noise ratio from the cable modem termination system’s (CMTS’s) US receiver chip after the carrier has been demodulated to give a pure baseband, signal-to-noise ratio. All rights reserved. © 2016 Jive Software | Powered by Jive SoftwareHome | Top of page | HelpJive Software Version: 2016.2.5.1, revision: 20160908201010.1a61f7a.hotfix_2016.2.5.1 ERROR The requested URL could not be retrieved There are other variables that must be considered, such as carrier-to-noise ratio (CNR). Close Reply To This Thread Posting in the Tek-Tips forums is a member-only feature.

WaRP 7 Read More NEWS   10 Nov 2015 7 playful uses for NFC in gaming Read More NEWS   6 Nov 2015 Meet an NFC innovator: Speech Code Read More NEWS   5 It can also be caused if your computer is recovered from a virus or adware/spyware attack or by an improper shutdown of the computer. If it causes RXER on the iMX28 MAC, then I would consider that this is a chip issue. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

That is not to say that the US SNR reading is not accurate. Note:FEC does not work very well if the errors are created by impulse noise which creates many errors in succession. It seems it's not an issue with LAN8720 RXER output/address. Configuration, detection and communication seem to be right, but the problem is that all packets are received or transmitted by the PHY are totally wrong in fact.

Already a member? The corrupted system files entries can be a real threat to the well being of your computer. Thank you!-----------------------------------------------------------------------------------------------------------------------Like • Show 0 Likes0 Actions Laszlo Timko @ Yuri Muhin on Jul 14, 2015 1:39 AMMark CorrectCorrect AnswerDear Yuri,Thanks for your reply, I didn't know documentation like this existed. It might also be a PHY issue, check that.See the reply in contextNo one else had this questionMark as assumed answeredOutcomesVisibility: i.MX Community823 ViewsLast modified on Jan 14, 2013 5:44 PMCategories:

In environments with few impairments on the upstream (for example, impulse noise, ingress, common path distortion, and so forth), the US SNR estimate numerically tracks CNR within less than a couple This paper is intended for those who have some familiarity with z Systems and the IBM DS8000® series and want a condensed but comprehensive overview of the synergy items up to Might explain why I see an Rx CRC error on the Receive buffer Descriptor.Any help is welcome.Thanks.Marek Vasut Jan 16, 2013 6:14 AMCorrect AnswerTry upstream U-Boot 2013.01 , it supports both RE: ''FEC port RX error 82'' on IP office 403 montyzummer (IS/IT--Management) 30 Apr 12 08:35 use the password interegation tool, there are other links to it on this forum.But i

Today, he is principal engineer at Sony Deutschland’s European Technology Center. Login with LinkedIN Or Log In Locally Email or Username Password Remember Me Forgot Password?Register ENGINEERING.com Eng-Tips Forums Tek-Tips Forums Search Posts Find A Forum Thread Number Find An Expert These three lines of code can be entered to activate remote-query: snmp-server manager snmp-server community public ro cable modem remote-query 3 public Three seconds was used for a quick response, which Note:Individual CM SNR readings are only available on the MC5x20S and MC28U linecards.

Generated Sat, 15 Oct 2016 18:08:57 GMT by s_ac15 (squid/3.5.20) As senior engineer at Design of Systems on Silicon (DS2, now Marvell Semiconductors), he contributed to MIMO and multi-user enabled power line silicon solutions and extended his area of interest to Note: The manual fix of Fec Port Rx Error 82error is Only recommended for advanced computer users.Download the automatic repair toolinstead. Is anyone using combination of i.MX6 Dual or Quad CPU with LAN8720 PHY and 3.14 or newer kernel successfully?Like • Show 0 Likes0 Actions Laszlo Timko Mar 29, 2016 5:03 AMUnmark

Impulse-noise-induced errors are addressed on the downstream with the use of interleaving to make errors appear spread out, which FEC is effective at fixing. The Data Over Cable Service Interface Specification (DOCSIS) outlines requirements that each cable operator must maintain in order to reliably transport IP data traffic. I measured the clock with frequency counter and is exact (<50ppm). This tool uses JavaScript and much of it will not work correctly without it enabled.

Learn More About Cisco Service Contracts Information For Small Business Midsize Business Service Provider Executives Industries Automotive Consumer Packaged Goods Education Energy Financial Services Government Healthcare Hospitality Life Sciences Manufacturing Materials There can be many events which may have resulted in the system files errors. To unlock all features and tools, a purchase is required. The signal quality is a bit distorted, but is between LAN8720A's timing margins.

Provision a TXP-10G opmode on WSE card, with port pair 9&10 2. Ethernet instantly started to work when I fixed these lines.Thank everyone for the help!1 person found this helpfulLike • Show 1 Like1 Actions Related ContentRetrieving data ...Recommended ContentCRC problems on MC33771MC33771 Register now while it's still free! In other words, the DOCSIS minimum recommended US CNR is 25 dB.

A packet intended for one CMTS upstream port is “leaking” onto another upstream. Previous message: [U-Boot-Users] What is wrong with "fec: rx error 0c10"? I would like to use its RMII interface to communicate with SMSC's LAN8720A PHY. Your cache administrator is webmaster.

It seems good to me, but I can't decode and interpret it.RMII signals have 1410mils lengths, however REF_CLK has 1750mils.I have already used LAN8720A with this connector successfully on another board, Resources Join | Indeed Jobs | Advertise Copyright © 1998-2016 ENGINEERING.com, Inc. Red Flag This Post Please let us know here why this post is inappropriate. Read More NEWS   10 Nov 2015 What’s next for your wearables design?

Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de The IQ of the group is the lowest IQ of Taking into account current regulations and electromagnetic compatibility (EMC), part II describes MIMO signal processing strategies and related capacity and throughput estimates. Specifically, Section 2.3.2 of the radio frequency interference (RFI) specification, “Assumed Upstream RF Channel Transmission Characteristics,” states this: Carrier-to-interference plus ingress (the sum of noise, distortion, common-path distortion and cross-modulation and Please turn JavaScript back on and reload this page.More questions in i.MX Community Where is this place located?NXP CommunityAll Placesi.MX CommunityLog in to create and rate content, and to follow, bookmark,