Message-ID: <502CB4FAC7DBD111B3300080C81EDC9D7956DA@farina> From: Andrew Last <Andrew.Last@signal.co.uk> To: "'iglosmail@igscb.jpl.nasa.gov'" <iglosmail@igscb.jpl.nasa.gov> Subject: [IGLOSMAIL-157] R100 Receiver Problems Date: Thu, 14 Dec 2000 09:53:26 -0000 Sender: owner-iglosmail Precedence: bulk ****************************************************************************** IGLOS Electronic Mail 14 Dec 01:53:26 PST 2000 Message Number 157 ****************************************************************************** Author: Andrew Last Dear 3S User Colleagues, I received the message from Jon Clarke at NPL yesterday and felt as part of IGLOS through our 3S receiver at the SLR facility at Herstmonceux, UK it was worth responding to Jon as an IGLOS mail in case the information is useful to other 3S users. The message "error 100: DOWNLOAD ERROR: PC_MSG_TX_FAILED 2" which you are seeing Jon is related to DSP tracking card 2. You might have also seen the message "error 100: DOWNLOAD ERROR: PGM_CHECKSUM_ERROR n" where n is a number usually between 0 and the number of DSP cards you have but occasionally a very large number eg 25468. The way to fix this problem is to firstly check the card indicated ie card 2 (remember they are numbered from 0 upwards with 0 being the card connected to the RF unit) is properly seated in the backplane by removing and replacing it and then to check the top connectors are properly seated. If this does not fix the problem I suggest you replace card 2 with the last DSP card eg card 5 if you have a 6-channel rx. To do this you will need to note the DSP dip switch settings and change them accordingly so the cards can be swapped. Once completed switch on and try again. Sometimes this fixes the problem but often if the card is faulty the message will change to indicate that the last card is now faulty eg "error 100: DOWNLOAD ERROR: PC_MSG_TX_FAILED 5". If this occurs you will need to edit firstly R100def.cmd and place a backslash at the start of the line with the text BOARD_CONFIG=n where n is the number of the faulty card. Secondly, edit the file Chnl.cmd and place a backslash on the line beginning with the BOARD_ID equal to the number of the faulty card. If the receiver works I suggest you leave it a few days before attempting to remove the backslashes and use the card again. Often the problem seems to have gone away but if it remains you can be fairly sure that the DSP card has developed a fault. Hope this cures the problem. If not email me back directly and I will try and give you some more help. Regards, Andrew. ___________________________________________________ Andrew Last (Andrew.Last@signal.co.uk) Signal Computing Ltd. http://www.signal.co.uk Registered in London No 1672944 Tel: +44 1483 579900 Fax: +44 1483 562836 20 Nugent Road, The Surrey Research Park, Guildford, Surrey, GU2 7DF, UK. ___________________________________________________ -----Original Message----- From: Jon Clarke [mailto:jon.clarke@npl.co.uk] Sent: 13 December 2000 10:45 To: IGLOS_Mail (E-mail) Subject: [IGLOSMAIL-154] NPL R100 problem **************************************************************************** ** IGLOS Electronic Mail 13 Dec 02:45:52 PST 2000 Message Number 154 **************************************************************************** ** Author: Jon Clarke Dear Colleagues, On Thursday 7 December, 21:53:47 UTC, our R100 NPLE "froze" and it has not worked since. I have restarted it several times, but it is stuck in a loop: it restarts automatically, starts running R100.cmd, halts, lists the message "error 100: DOWNLOAD ERROR: PC_MSG_TX_FAILED 2", then restarts again. I may try reinstalling the firmware if no other solutions present themself. Regards, Jon ------------------------------------------------------------------------ - Mr Jon Clarke Time and Frequency Section, tel: +44 (0) 20 8943 6548 Centre for Electromagnetic and Time Metrology, fax: +44 (0) 20 8943 6529 National Physical Laboratory, e-mail: jon.clarke@npl.co.uk Queens Road, Teddington, web: http://www.npl.co.uk/npl/ctm/ TW11 0LW, U.K. ------------------------------------------------------------------------ -