Please use the first 1021_uc_1.06.skr file, might be final as that seems to work the best.... Vers 1.06c has been removed as that wasn't that good...
A missing P.S. 😉
The file that now is available by the first 1.06 link (which work quite well) is not the same as it was originaly (which made some problems).
The file that now is available by the first 1.06 link (which work quite well) is not the same as it was originaly (which made some problems).
Hi Søren
I have not been following this thread for a long time now, but I see that you have released a number of new firmwares and filters, and the discussions about filters and their effects seem to have faded out. This is probably the sign of good filters 😀
So with what filters did you end up? Paul's ones? Or did you design new ones from the ground up?
I have not been following this thread for a long time now, but I see that you have released a number of new firmwares and filters, and the discussions about filters and their effects seem to have faded out. This is probably the sign of good filters 😀
So with what filters did you end up? Paul's ones? Or did you design new ones from the ground up?
Hi,
Just got the board today, it looks very cool.
What firmware do the Rev 3 boards come with?
Also, regarding the Vref 16 capacitor mod, the board I received looks like it has its through holes filled by the clear coat layer, so I'll have to attach the caps on top of the board (somewhat harder).
I think I'll do the mod after testing the DAC fully built.
Just got the board today, it looks very cool.
What firmware do the Rev 3 boards come with?
Also, regarding the Vref 16 capacitor mod, the board I received looks like it has its through holes filled by the clear coat layer, so I'll have to attach the caps on top of the board (somewhat harder).
I think I'll do the mod after testing the DAC fully built.
FallenAngel, on Rev3 you have three pairs of through hole pads on each rail (Check by C168 - C175), so it's much easier with this revision to solder them. Although you could probably go for 3x1200-1500uF instead, if you are doing the LowResMod at least.
I just assembled and am now listening to my Rev3 board. I updated uManager firmware to 1.06 (posted a couple pages back). FPGA Revision updated to 1.05. Using an Amanero for USB to I2S.
Everything appears to be working as expected so far, but I have one small issue. Randomly, the music will stop for a second or two, then pick back up and go. When this happens, the LED on the board goes from solid to flashing (and then back to solid-on as soon as the music starts again). My understanding is that flashing means no signal lock. So somehow it apparently loses its signal lock. This is with redbook CD audio (i.e. 44/16 PCM). I can't determine any pattern to it; it's very intermittent and almost infrequent enough to ignore.
Anyone else ever see this?
With the brief listening I've done so far, I really like what I hear!
Everything appears to be working as expected so far, but I have one small issue. Randomly, the music will stop for a second or two, then pick back up and go. When this happens, the LED on the board goes from solid to flashing (and then back to solid-on as soon as the music starts again). My understanding is that flashing means no signal lock. So somehow it apparently loses its signal lock. This is with redbook CD audio (i.e. 44/16 PCM). I can't determine any pattern to it; it's very intermittent and almost infrequent enough to ignore.
Anyone else ever see this?
With the brief listening I've done so far, I really like what I hear!
I can't even find C168 or higher...
Check by the large R-2R resistor arrays.
Picture here: dam1021-02: 0.02% resistor version rev3
Check by the large R-2R resistor arrays.
Picture here: dam1021-02: 0.02% resistor version rev3
I ordered from dam1021-05 and it doesn't look like the same board. Now I think I got an older revision...
Yes, that is a Rev2 board, too bad - because it makes life alot easier with through-hole mounting 🙂
... but I have one small issue. Randomly, the music will stop for a second or two,
Do you accept this from your car and call it a "minor issue"? 🙂
//
With 1.06 I have this only (but quite reproducible) immediacy after powering the DAM up, later (up to now) I never noticed it.... I updated uManager firmware to 1.06
...
Everything appears to be working as expected so far, but I have one small issue. Randomly, the music will stop for a second or two, then pick back up and go.
Yes, that is a Rev2 board, too bad - because it makes life alot easier with through-hole mounting 🙂
I thought so, thanks.
Any way to know which firmware version this is running? I'm tempted to get it up and running and not bother with firmware after, assuming it works.
Hi Søren
I have not been following this thread for a long time now, but I see that you have released a number of new firmwares and filters, and the discussions about filters and their effects seem to have faded out. This is probably the sign of good filters 😀
So with what filters did you end up? Paul's ones? Or did you design new ones from the ground up?
I designed my own, all by using rePhase 🙂
I designed my own, all by using rePhase 🙂
Do you find them better than Pauls or haven't you compared?
//
I just assembled and am now listening to my Rev3 board. I updated uManager firmware to 1.06 (posted a couple pages back). FPGA Revision updated to 1.05. Using an Amanero for USB to I2S.
Everything appears to be working as expected so far, but I have one small issue. Randomly, the music will stop for a second or two, then pick back up and go. When this happens, the LED on the board goes from solid to flashing (and then back to solid-on as soon as the music starts again). My understanding is that flashing means no signal lock. So somehow it apparently loses its signal lock. This is with redbook CD audio (i.e. 44/16 PCM). I can't determine any pattern to it; it's very intermittent and almost infrequent enough to ignore.
Anyone else ever see this?
With the brief listening I've done so far, I really like what I hear!
Seen before with substandard signal integrity.... The I2S interface have high speed digital signals that require short wires and good gnd, preferable one gnd per signal wire. Also ensure that the isolated side have the needed 3.3V power, it can actually work without, but not that good....
Do you find them better than Pauls or haven't you compared?
//
I haven't tested Paul's filter, needed to have my own for business reasons....
I designed my own, all by using rePhase 🙂
Nice, I am honored! 😀
Did you try the recently introduced Albrecht cosine windows? (rephase 1.0.0 from last June)
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