DPO7254 Failing SPC

[Kalinchuk]

Hello, I have a DPO7254 that fails SPC. All the channels seem to work fine though. I have the errors from the console log and it says there is a missing trigger on channel 1. All channel triggers seem to work fine though.

SHOWTIME: SPC: starting 17:59:54
SHOWTIME: SPC starting step : Set SPC defaults
SHOWTIME: SPC completed step : Set SPC defaults 00:00:01
SHOWTIME: SPC starting step : Get Temperature
SHOWTIME: SPC completed step : Get Temperature 00:00:00
SHOWTIME: SPC starting step : Hfd144 safe 50ohm values
SHOWTIME: SPC completed step : Hfd144 safe 50ohm values 00:00:01
SHOWTIME: SPC starting step : A2D linearity cal
Linearity cal took 5 passes
SHOWTIME: SPC completed step : A2D linearity cal 00:00:18
SHOWTIME: SPC starting step : Hfd144 Null input current
SHOWTIME: SPC completed step : Hfd144 Null input current 00:00:06
SHOWTIME: SPC starting step : Gain Normalize hfd144
SHOWTIME: SPC completed step : Gain Normalize hfd144 00:00:02
SHOWTIME: SPC starting step : A2D gain/offset pass 1
A2D gain 194 - 450; A2D offset 80 - 794
SHOWTIME: SPC completed step : A2D gain/offset pass 1 00:00:32
SHOWTIME: SPC starting step : Et Cal
SHOWTIME: SPC completed step : Et Cal 00:00:13
SHOWTIME: SPC starting step : Demux Phase Cal
digPhaseCal succeeded
SHOWTIME: SPC completed step : Demux Phase Cal 00:00:03
SHOWTIME: SPC starting step : A2D interleave
SHOWTIME: SPC completed step : A2D interleave 00:00:21
SHOWTIME: SPC starting step : A2D gain/offset pass 2
A2D gain 192 - 449; A2D offset 80 - 793
SHOWTIME: SPC completed step : A2D gain/offset pass 2 00:00:14
SHOWTIME: SPC starting step : A2D gain/offset pass 3
SHOWTIME: SPC completed step : A2D gain/offset pass 3 00:00:00
SHOWTIME: SPC starting step : A2D gain/offset cleanup
SHOWTIME: SPC completed step : A2D gain/offset cleanup 00:00:00
SHOWTIME: SPC starting step : Hfd144 varigain DAC
SHOWTIME: SPC completed step : Hfd144 varigain DAC 00:00:03
SHOWTIME: SPC starting step : LF Comp for M668
SHOWTIME: SPC completed step : LF Comp for M668 00:00:03
SHOWTIME: SPC starting step : Hfd144 offset DACs
SHOWTIME: SPC completed step : Hfd144 offset DACs 00:00:06
SHOWTIME: SPC starting step : M668 offset DACs
SHOWTIME: SPC completed step : M668 offset DACs 00:00:04
SHOWTIME: SPC starting step : Hfd144 stepgain
SHOWTIME: SPC completed step : Hfd144 stepgain 00:00:11
SHOWTIME: SPC starting step : M668 stepgain
SHOWTIME: SPC completed step : M668 stepgain 00:00:12
SHOWTIME: SPC starting step : Hfd144 Bandwidth limit gain
SHOWTIME: SPC completed step : Hfd144 Bandwidth limit gain 00:00:02
SHOWTIME: SPC starting step : Hfd144 offset
SHOWTIME: SPC completed step : Hfd144 offset 00:00:09
SHOWTIME: SPC starting step : M668 offset
SHOWTIME: SPC completed step : M668 offset 00:00:05
SHOWTIME: SPC starting step : Hfd144 offset gain-correction
SHOWTIME: SPC completed step : Hfd144 offset gain-correction 00:00:40
SHOWTIME: SPC starting step : M668 offset gain-correction
SHOWTIME: SPC completed step : M668 offset gain-correction 00:00:41
SHOWTIME: SPC starting step : Gain Validation
SHOWTIME: SPC completed step : Gain Validation 00:00:00
SHOWTIME: SPC starting step : Trig gain/offset/hysteresis
** 1B failed -- no trigger found. **
18:04:11:125[2456] caltrig.cpp:calTrigGainOffsetAndHysteresis(123) error calibrating gain/hysteresis on channel 1
CAL: SPC returned an error in step Trig gain/offset/hysteresis
SHOWTIME: SPC: failed and quit 00:00:10
total time 00:04:17
CAL: SPC failed
DRAM is Mt_ddr2_512M_667

Dram Calibration results:
-------------------------
DramCal has PASSED on all Demuxs

DRAM is Mt_ddr2_512M_667

Dram Calibration results:
-------------------------
DramCal has PASSED on all Demuxs

digPhaseCal succeeded

[m k]

Maybe there is a separated trigger something for SPC.

[charlyd]

If i remember well, this M668 especially is also know from the TDS7404B/CSA7404B series.  i have units here with that same sort of error dropping in the logs.
so maybe when from older models the problem is known yet it is related somehow?

[editted:] i just double checked it s M866 and not M668   

Code: [Select]

0x1641830 (SPC task): cc_loadV: CC_TRIGdcGain3c was 0; clipped
0x1641830 (SPC task): ** M866CompCalibrator 3c failed -- ...wrote cal constant CC_TRIGdcGain3c to 0.000000, failed

pitty but at least remarkable...

but M668 is a pre-amp from your channel 1 >> check that first i would say