Me too although I'll test SMPS as well. I made a dedicated simple linear supply (as posted earlier).
Attachments
Yes I did see that post. What voltage are you feeding into the 5v reg? What current is it capable of?
About 9.5 VDC at normal load where about 8 VDC is required. It's a 2 A regulator (78S05) so about 2 A continous although it would get a bit too hot with 9.5 VDC in. Obviously the Najda will draw well under 1 A so that will not be a problem here.
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Yep heat is the price we pay for linear. I am putting together a hybrid power supply that will efficiently provide 5v 2.5 amp and dual rail linear at 1.5amp. I am just fine tuning the layout before I get some boards made up if your interested.
Power Supply for Najda
First Bench tests are very promising. As power supply I have choosen two low noise regulated power supplies which will give me -+12V +5V and +9 V for the hardkernel X2 controller. The plan is to have the device controlled headlessly without USB connection to the host.
Ultimatively I would like to develop a couple of web services tp remote control the najda DSP board.
First Bench tests are very promising. As power supply I have choosen two low noise regulated power supplies which will give me -+12V +5V and +9 V for the hardkernel X2 controller. The plan is to have the device controlled headlessly without USB connection to the host.
Ultimatively I would like to develop a couple of web services tp remote control the najda DSP board.
Attachments
Hi Markus, good to hear from you. That's an impressive power supply you have here! Looking forward to your progress.
I have released V0.0.8, it's available from the website in the download section.
List of changes:
- Custom biquads (DF1 coefficients)
- Global EQ Bypass on each channel
- Small Apple remote support
- Auto-mute when SPDIF input is not PCM
- Individual IR commands for selecting each source
- Channel Status of SPDIF out 5 (channels 9&10) show now the sampling frequency.
- Bug fix for the I2S input. It should be fine now for everybody.
When you connect first time after you installed the files, NUC (Najda Under Control, a short suggested by Shaun
) will load the new firmware onto the board.As usual when updating an external device from your computer, please make sure not to turn off the PC, pull off the power chord or USB cable. Update lasts about a minute, and you will loose all your settings and presets
.Many thanks to Shaun and Paal for testing the soft!!!
The mix FIR/IIR will follow soon.
Nick
Found some more Tactile switches, huge range of symbols, numbers etc,
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Congratulations Nick! WaveIO is working now! No overload of DSP_Core1 anymore!
Regards
Sigi
It does work fine though (possibly manually changing to ebay.com.au if needed). Try copy and paste.
I've made some progress on my Najda build...
I will use MEC navkit and 5G serie switch along with the Vishay IR receiver for the navigation panel
I will use two rows of 4 leds (2 mm flat top) :
one row of four red led for all clipping indication
one row for general indication with yellow and green leds. For the time being only two are for Najda
A meanwell net35C will give me +/-15V & 5.5V and a LDO regulator board (right hand side) will bring those to +/-12V and 5V.
An Amanero USB-I2S will be mounted verticall on a shiel that could accept an optional isolator board also.
Still some space left for future use...
Now I have to make it real !
Jean Claude
I will use MEC navkit and 5G serie switch along with the Vishay IR receiver for the navigation panel
I will use two rows of 4 leds (2 mm flat top) :
one row of four red led for all clipping indication
one row for general indication with yellow and green leds. For the time being only two are for Najda
A meanwell net35C will give me +/-15V & 5.5V and a LDO regulator board (right hand side) will bring those to +/-12V and 5V.
An Amanero USB-I2S will be mounted verticall on a shiel that could accept an optional isolator board also.
Still some space left for future use...
Now I have to make it real !
Jean Claude
Attachments
Hi Ake,
Have you edited the file manually? Otherwise please send me on my email the nsf file for inspection.
Hi Jean-Claude, that's gorgeous! Have you selected a display already?
Nick
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Strange, if you click on the link it doesnt work. If you open the link in a new tab it works fine...?
Strange, if you click on the link it doesnt work. If you open the link in a new tab it works fine...?
hello jean
what package do you use to do your 3-D modelling ?
do you use sketch-up ?
regards
trev
Yes, after some thinking, I will keep the Artronic Big Black Double Negative ABC016002C41-DLW-R
Jean-Claude
Hi Trev,
I'm lucky enough to have access to a workstation with Solidworks installed !
Best regards
JC
Hi Nick
(1) Is the Apple Remote this one ? Apple Remote for iPhone or iPod: Amazon.co.uk: Electronics
Sure looks great !
(2) is the Apple remote compatible with source selection, as it has very few buttons ( navigation + menu + => the latest could be mute or stdbye
Hi all
Is there a good source for these Apple remotes ? (19€ at Apple store)
Any experiençe of using them with Najda ergonomically speaking ?
BR
Jean-Louis
Hi Jean-Louis
Yup that's the one I've used to check the implementation. I think the previous model (white and plastic) uses the same protocol, but not tested with Najda.
Yes, there are two ways now for changing source.
One way is individual keys, i.e. one key per source.
The other way is one single key for all sources: when you press that key, you select the next source available:
Analogue -> Coax -> Optical -> I2S (if enabled) -> Analogue etc....
See the updated manual p.12.