Difference: AMC13SecretLDCRegisters (1 vs. 3)

Revision 321 Oct 2014 - EricHazen

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META TOPICPARENT name="HcalDTC"
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OBSOLETE
 This page documents an integrated DAQ link receiver built into the AMC13. For firmware version v=0x10 this works fine using the old "Wu" format DAQ link protocol. Later versions omit the receiver as the protocol has changed and the CMS DAQ group haven't yet developed a Xilinx-compatible receiver.

Revision 209 Nov 2012 - CharlieHill

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META TOPICPARENT name="HcalDTC"
This page documents an integrated DAQ link receiver built into the AMC13. For firmware version v=0x10 this works fine using the old "Wu" format DAQ link protocol. Later versions omit the receiver as the protocol has
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 plugged between the top two SFP sites and check it's integrity with the counters below.

Addr Name Descr Count when working? Count when not working?
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0x10 LDC_accept_cntr Packets accepted Y N
0x11 LDC_abort_cntr Packets aborted N Y
0x12 LDC_ACK_cntr Packets acknowledged Y N
0x13 LDC_event_cntr Events received Y N
0x14 LDC_word_cntr Words received Y N
0x15 LDC_CRC_bad_cntr Packets with bad CRC N Y
0x16 LDC_SEQ_bad_cntr Packets with bad seq no. N Y
0x17 LDC_wc_bad_cntr Packets with wrong length N Y
0x18 LDC_frame_bad_cntr Packets with bad framing N Y
0x19 LDC_buf_ovf_cntr Buffer overflow counter N Y
0x1a LDC_CMSCRC_err CMS CDF CRC bad N Y
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0x90 DAQLDC_WRD_CTR Words Sent Y N
0x91 DAQLDC_CTRL_CTR ?? Sent N Y
0x91 DAQLDC_EV_CTR Events Sent Y N
0x93 DAQLDC_RCVE_WRD_CTR Words Received Y N
0x94 DAQLDC_RCVE_CTRL_CTR ?? Received Y N
0x95 DAQLDC_RCVE_EV_CTR Events Received N Y
0x96 DAQLDC_FIFO_ERR_CTR FIFO Errors N Y
0x97 DAQLDC_CRC_ERR_CTR CRC Errors N Y
0x98 DAQLDC_SYNC_LOST_CTR Sync Losses ?? N Y
0x99 DAQLDC_ACK_CTR Number of acknowledged packets N Y
0x9a DAQLDC_VAL_PCKT_CTR Number of Valid Packets N Y
0x9b DAQLDC_ALL_PCKT_CTR Total number of Packets Y Y
0x9c DAQLDC_BAD_PCKT_CTR Number of Bad Packets N Y
0x9d DAQLDC_BACKPR_CTR Packets dropped due to SDRAM full N Y
0x9e DAQLDC_CTRL_ERR_CTR Control Errors N Y
 

Revision 131 Aug 2012 - EricHazen

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Added:
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META TOPICPARENT name="HcalDTC"
This page documents an integrated DAQ link receiver built into the AMC13. For firmware version v=0x10 this works fine using the old "Wu" format DAQ link protocol. Later versions omit the receiver as the protocol has changed and the CMS DAQ group haven't yet developed a Xilinx-compatible receiver.

For now, if version 0x10 is programmed into the AMC13, one can take data with a loop-back fiber plugged between the top two SFP sites and check it's integrity with the counters below.

Addr Name Descr Count when working? Count when not working?
0x10 LDC_accept_cntr Packets accepted Y N
0x11 LDC_abort_cntr Packets aborted N Y
0x12 LDC_ACK_cntr Packets acknowledged Y N
0x13 LDC_event_cntr Events received Y N
0x14 LDC_word_cntr Words received Y N
0x15 LDC_CRC_bad_cntr Packets with bad CRC N Y
0x16 LDC_SEQ_bad_cntr Packets with bad seq no. N Y
0x17 LDC_wc_bad_cntr Packets with wrong length N Y
0x18 LDC_frame_bad_cntr Packets with bad framing N Y
0x19 LDC_buf_ovf_cntr Buffer overflow counter N Y
0x1a LDC_CMSCRC_err CMS CDF CRC bad N Y

-- EricHazen - 31 Aug 2012

 
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