I have issue with serial communication on my dam1021rev5 since few days. I double check my dongle, wires etc. with second set. Problem is still same.
I bypass flash to enter directly to umanager and communication start to works properly. After update firmware issue still manifest exactly same way, so fpga seems to be trashing communication. Any hint how to solve this issue?
I bypass flash to enter directly to umanager and communication start to works properly. After update firmware issue still manifest exactly same way, so fpga seems to be trashing communication. Any hint how to solve this issue?
Code:
dam1021 uManager Rev 1.21 20190308 FPGA Rev 1.21 Press ? for help.
# ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒~▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
Invalid Command
# ▒▒▒▒
Invalid Command
# ▒▒~▒▒▒▒▒▒▒▒~▒▒▒▒▒
Invalid Command
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Invalid Command
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# ▒▒▒~▒▒
Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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Invalid Command
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# ▒▒▒|▒▒▒
Invalid Command
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Invalid Command
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Code:
dam1021 uManager Rev 1.21 20190308 FPGA Rev F.FF Press ? for help.
# ?
uManager Commands
?/Help show this help
set par = value set paramter to value, set alone to show current
conspeed = 9600 | 19200 | 38400 | 57600 | 115200
volume = fixed -80 - +10, -99 enable volume potmeter
filter = linear | mixed | minimum | soft
mode = normal | invert | bal-left | bal-right
download download uManager, fpga or filters
update update uManager firmware
filters [all] show selected or all filters
df [adr] dump flash content
exit exit uManager
# download
Start sending file using XMODEM/CRC protocol.
CCCCCCCCCCCCCC
# update
uManager Firmware Update, are you sure ? Updated, resetting.
R1.21
I3
L000
F4
PN
V-20
I3
I0
L044
dam1021 uManager Rev 1.21 20190308 FPGA Rev 1.21 Press ? for help.
# ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
Invalid Command
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Invalid Command
# ▒▒~▒▒▒▒
Invalid Command
# ▒~▒▒
Invalid Command
# ▒▒~▒▒▒▒▒▒▒▒~▒▒▒
Invalid Command
# ▒▒~▒▒▒
Invalid Command
# ▒▒▒
Invalid Command
# ▒▒
Invalid Command
# ▒▒▒▒▒▒▒
Invalid Command
# ▒▒~▒▒▒▒
Invalid Command
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Invalid Command
# filters
04 Linear Phase FIR1, 44.1 Ksps, 21.3 Khz - 1 db, 21.9 Khz -130 db
08 Linear Phase FIR2, 384 Ksps,Welcome to this club. 🙂
https://www.diyaudio.com/forums/ven...24-bit-384-khz-dac-module-25.html#post5699085
Maybe Soren's "boxed" DACs initial parameters.
https://www.diyaudio.com/forums/ven...24-bit-384-khz-dac-module-25.html#post5699085
Maybe Soren's "boxed" DACs initial parameters.
Dear Santa,
my only wish for Christmas this year is the new PLL software for my pre rev7 DAM1021 boards.
Thank you soooo much!
my only wish for Christmas this year is the new PLL software for my pre rev7 DAM1021 boards.
Thank you soooo much!
@PavZ
Have you solved the problem with "temporary loss of SPDIF2 IN lock after rotating volume pot sometimes" ?
Unfortunately not. It seems to happen only when turning volume down. I tried adding inductance on the pot leads, checked UART - uC is not shut down during the sync loss, it handles pot position and sends V* commands. My pot is a good quality cermet Bourns. I wonder if anyone else has this issue.
Thanks for the information.
Recently, I have noticed this problem. I have already tested two 10k and 50k pots. It's exactly as you described most of the time when you turn it down, the lock is lost for a few seconds. Maybe someone has solved this problem already.
Recently, I have noticed this problem. I have already tested two 10k and 50k pots. It's exactly as you described most of the time when you turn it down, the lock is lost for a few seconds. Maybe someone has solved this problem already.
I am posting this in two threads.
I use a Raspberry to hifiberry digi+ pro to DAM1021, with Moode as player. I also have the ArDAM from DimDim to control volume, source and filters using a separate IR.
The IR remote is ok for controlling source and filters, but I would really like to use the volume control of the Moode to change the HW volume on the DAM1021. The best thing would be what mbrennwa describes in post 7 of the 2nd thread.
I found some information on it, but nothing “complete”
http://raw-sewage.net/articles/dam1021-raspberry-pi/
https://www.diyaudio.com/community/threads/raspberri-pi-volumio-control.330151/
Does anyone have more experience with this? I like moode, but could use other player on the Raspberry if that would make the whole thing easier.
Best regards, Erik
I use a Raspberry to hifiberry digi+ pro to DAM1021, with Moode as player. I also have the ArDAM from DimDim to control volume, source and filters using a separate IR.
The IR remote is ok for controlling source and filters, but I would really like to use the volume control of the Moode to change the HW volume on the DAM1021. The best thing would be what mbrennwa describes in post 7 of the 2nd thread.
I found some information on it, but nothing “complete”
http://raw-sewage.net/articles/dam1021-raspberry-pi/
https://www.diyaudio.com/community/threads/raspberri-pi-volumio-control.330151/
Does anyone have more experience with this? I like moode, but could use other player on the Raspberry if that would make the whole thing easier.
Best regards, Erik
Happy New Year Everyone!
Dear Soeren,
may I ask again about that long promised update to the DAM1021's firmware to fix the clocking issues?
Thanks!
Dear Soeren,
may I ask again about that long promised update to the DAM1021's firmware to fix the clocking issues?
Thanks!
There is nothing to fix.... But at some point when I have some leftover time, I will update the pre rev7 firmware with the new rev7 features.
It would be great if you found the time to do this long-promised update soon. It would make my not that small investment in 17 of your DAM1021 worthwile. Thank you.
Ok, now the dam1021 rev 1.23 firmware is up on the download page. rev 1.23 firmware is for pre rev7 boards, not the new rev7 boards, rev 1.23 firmware have the finer control over the oscilator....
Unifying the firmware for rev7 and pre rev7 boards will have to wait a little, or more....
http://www.soekris.dk/download.html
Why name an updated FW 1.23, when already 1.24 existed. Does this mean that there is no 4k support in the new FW 1.23 with finer clock control?
Will you release 1121 with finer control?
//
Why name an updated FW 1.23, when already 1.24 existed. Does this mean that there is no 4k support in the new FW 1.23 with finer clock control?
Will you release 1121 with finer control?
//
Thank you so much, Soeren! So the only difference between version 1.21 and 1.23 for the pre v7 DAM1021 is that with the new version adjustments to the clock happen only when necessary and at a rate of 1/16 Hz? And custom filters made for 1.21 will all work, correct?
So I completed the update and made a few listening tests (will do an actual comparison with recordings later).
It's curious how different the converter now sounds with the same filter. Closer and clearer sounding, with much better defined dynamics. The sheer power in great recordings come through now like never before. Certain elements stick more recognizeably out of mixes across the frequency range. Interestingly, sound appears also brighter overall, so much so that I don't like how many recordings sound now on my rather revealing studio monitors. The older masters from the 80s done with a SAR converter now sound pretty much like vinyl without the artifacts.
I am a little baffled, wasn't expecting this much of a change. But I think I take it. 🙂
It's curious how different the converter now sounds with the same filter. Closer and clearer sounding, with much better defined dynamics. The sheer power in great recordings come through now like never before. Certain elements stick more recognizeably out of mixes across the frequency range. Interestingly, sound appears also brighter overall, so much so that I don't like how many recordings sound now on my rather revealing studio monitors. The older masters from the 80s done with a SAR converter now sound pretty much like vinyl without the artifacts.
I am a little baffled, wasn't expecting this much of a change. But I think I take it. 🙂
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Thanks for reporting, I'm looking forward to Soren porting the code to the DAM1121.
So, I made recordings with two pairs of DAM1021 testing rev. 1.21 vs 1.23.
Analyzing files with DeltaWave the revised clock tended to have a slight edge in the amplitude and phase linearity tests. However, I could not detect a meaningfull reproducible difference with regard to clock drift in the recordings via DeltaWave. Neither drift amplitude nor speed were noticeably different overall between both versions. Neither did the new software prevent seemingly erratic changes in clock speed as the DAM1021 is prone to (unlike every other DA converter I have made roundtrip recordings with).
Listening to the recordings, I think the older rev sounds a little less stable-detailed-real, a tick hazier and lacking perception of space compared to the new one.
Analyzing files with DeltaWave the revised clock tended to have a slight edge in the amplitude and phase linearity tests. However, I could not detect a meaningfull reproducible difference with regard to clock drift in the recordings via DeltaWave. Neither drift amplitude nor speed were noticeably different overall between both versions. Neither did the new software prevent seemingly erratic changes in clock speed as the DAM1021 is prone to (unlike every other DA converter I have made roundtrip recordings with).
Listening to the recordings, I think the older rev sounds a little less stable-detailed-real, a tick hazier and lacking perception of space compared to the new one.
Did you try to do a recording where you place the DAM in uManager mode i.e.
Leave it at the promt (ie. don't do "exit") and do your recording test as per above again and check the results. Sören has stated that in +++ mode, clock handling is totally stopped - no adjustments at all.
//
- warm it up (20 min)
- enter using terminal and give: +++
- promt is received
Leave it at the promt (ie. don't do "exit") and do your recording test as per above again and check the results. Sören has stated that in +++ mode, clock handling is totally stopped - no adjustments at all.
//