[time-nuts] Re: TAPR TIC: TimeLab mode question (John Ackermann N8UR)

Thu Mar 18 10:11:44 UTC 2021

Hi John, hi Matthias

I have the same problem with the channel C output of the TICC with the
latest firmware.
John, we already had direct email contact therefore from the end of April
to early May 2020. I had already tested all available versions in
conjunction with Timelab. Here are the data with version 2017, which in my
opinion works hard-free, but without the improvements in recent versions.

# TAPR TICC Timestamping Counter

# Copyright 2017 N8UR, K9TRG, NH6Z, WA8YWQ

#####################
# TICC Configuration:
# Measurement Mode: TimeLab 3-channel
Debug

# EEPROM Version: 7, Board Version: D

# Software Version: 20170108.1

# Board Serial Number: 1FBD4D12

# Clock Speed: 10000000

# Coarse tick (ps): 100000000

# Cal Periods: 20

# SyncMode: M

# Timeout: 0x04

# Time Dilation: 2500 (chA), 2500 (chB)

# FIXED_TIME2: 1283 (chA), 1256 (chB)

# FUDGE0: 0 (chA), 360 (chB)

#####################

# Type any character for config menu

# ............................

# timestamp chA, chB; interval chA->B (seconds)

1.533148076819 chA

1.533148080106 chB

2.000000003286 chC (B-A)

2.533148076981 chA

2.533148080163 chB

3.000000003181 chC (B-A)

3.533148077646 chA

3.533148080380 chB

4.000000002733 chC (B-A)

4.533148078019 chA

4.533148080491 chB

5.000000002471 chC (B-A)

5.533148077533 chA

5.533148080328 chB

6.000000002794 chC (B-A)

6.533148077378 chA

6.533148080264 chB

7.000000002885 chC (B-A)

7.533148077413 chA

7.533148080327 chB

8.000000002913 chC (B-A)

8.533148077962 chA

8.533148080590 chB

9.000000002627 chC (B-A)

Did other time-nuts have found this problem and possibly a solution?
It would be great if John would process the problem again.
Many Thanks

Best regards,
Christoph

> Message: 4
> Date: Sun, 14 Mar 2021 14:51:58 -0400
> From: John Ackermann N8UR <jra at febo.com>
> Subject: [time-nuts] Re: TAPR TIC: TimeLab mode question
> To: time-nuts at lists.febo.com
> Message-ID: <a34bc5e0-4cf0-14c7-8741-bab539a2ac66 at febo.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hi Matthias --
>
> I just took a look at the source and the "Debug" is meaningless...
> stupid program error (missing a "break" in a case statement) caused that
> to be printed when it shouldn't be.  Easy fix.
>
> But why you're seeing the bogus chC results will take a little more
> investigation.  I suspect it's something that broke when I made changes
> to the print routine in the latest version.  I'll see if I can figure it
> out, and if/when I do I'll push changes to the github repository.
>
> Thanks for letting me know about the problems!
>
> John
> ----
>
> On 3/14/21 5:29 AM, Matthias Jelen wrote:
> > Hello Time-Nuts,
> >
> > after I finally managed to get my TAPR TIC into a case,
> > together with two 1PPS dividers, I wanted to give the 3
> > channel measurement a try. I remember that I successfully
> > used the TimeLab mode some years ago, but this time I canÂ´t
> > get it to work. I installed the lasted firmware (binary from
> > github).
> >
> > Channel A and B work fine, but the (B-A) doensÂ´t seem to be
> > calculated - see output from TIC below.
> >
> > Should the line reading "debug" in the TIC Configuration
> > make me nervous?
> >
> > Any help highly appreciated...
> >
> > Thanks & have a nice weekend,
> >
> > Matthias
> >
> > # TAPR TICC Timestamping Counter
> > # Copyright 2016-2020 N8UR, K9TRV, NH6Z, WA8YWQ
> >
> > #####################
> > # TICC Configuration:
> > # Measurement Mode: TimeLab 3-channel
> > Debug
> > # Poll Character: none
> > # EEPROM Version: 10, Board Version: D
> > # Software Version: 20200412.1
> > # Board Serial Number: A92D670B
> > # Clock Speed: 10.000000 MHz
> > # Coarse tick: 100.000000 usec
> > # Cal Periods: 20
> > # Timestamp Wrap:  0
> > # SyncMode: M
> > # Ch Names: A/B
> > # PropDelay: 0 (ch0), 0 (ch1)
> > # Timeout: 0x05
> > # Trigger Edge: R (ch0), R (ch1)
> > # Time Dilation: 2500 (ch0), 2500 (ch1)
> > # FIXED_TIME2: 0 (ch0), 0 (ch1)
> > # FUDGE0: 0 (ch0), 0 (ch1)
> > #####################
> >
> > # Type any character for config menu
> > # ............................
> >
> > # timestamp chA, chB; interval chA->B (seconds with 11
> > decimal places)
> > 1.14527049228 A
> > 0.16498914776 B
> > 2.00000000001chC (B-A)
> > 2.14527049186 A
> > 1.16498914789 B
> > 3.00000000001chC (B-A)
> > 3.14527049132 A
> > 2.16498914799 B
> > 4.00000000001chC (B-A)
> > 4.14527049068 A
> > 3.16498914839 B
> > 5.00000000001chC (B-A)
> > 5.14527049019 A
> > 4.16498914834 B
> > 6.00000000001chC (B-A)
> > 6.14527048961 A
> > 5.16498914850 B
> > 7.00000000001chC (B-A)
> > 7.14527048907 A
> > 6.16498914865 B
> > 8.00000000001chC (B-A)
> > 8.14527048859 A
> > 7.16498914890 B
> > 9.00000000001chC (B-A)
> > 9.14527048800 A
> > 8.16498914895 B
> > 10.00000000001chC (B-A)
> > 10.14527048751 A
> > 9.16498914913 B
> > 11.00000000001chC (B-A)
> > 11.14527048687 A
> > 10.16498914928 B
> > 12.00000000001chC (B-A)
> > 12.14527048644 A
> > 11.16498914941 B
> > 13.00000000001chC (B-A)
> > 13.14527048602 A
> > 12.16498914966 B
> > 14.00000000001chC (B-A
> >
>
>
>