I hit Y once again and then the DAM rebooted to v1.19.
I've uploaded the firmware on 19200 baudrate, but first you have to change the conspeed. I had problems with uploading the firmware, but with real serial port on an old PC with Windows XP and Hyperterminal, everything went well.
Regards
I thought I had troubles updating - read Søren's comment about pressing update - and it works fine - now into listening 🙂
Hi,
I do have another problem. I set up two dam1021 for dual mono, everything shared, PS, i2s input. One of the boards always keep losing lock. For 5 sec they play both, then one loses lock, light blinking and when it locks back again the other one loses lock and the same thing again.
Any suggestions?
I do have another problem. I set up two dam1021 for dual mono, everything shared, PS, i2s input. One of the boards always keep losing lock. For 5 sec they play both, then one loses lock, light blinking and when it locks back again the other one loses lock and the same thing again.
Any suggestions?
Thanks for the baud rate suggestion, Flikoman - it worked!
I downloaded the 1.19 file using 19200 and updated and it worked first time - no 'Incorrect Image'. Now, on entering uManager I'm seeing both the uC and FPGA versions as 1.19. And its playing music.
Must have been my RS232 chain not being able to handle the high speed 115200.
For the record, I'm using a tablet running Windows 10 into a Keyspan USA-19HS USB-to-serial adapter and then 2-inch jumpers from the Keyspan to J10 on the DAM1021. Terminal program is HyperTerminal.
hopsing, suggest you try the 19200 baud rate Flikoman suggested and let us know the outcome.
Well, in 2018 I would not call 115200 baud high speed anymore, but I understand what you mean... 😀
Great that you solved your problem though! I would advise to try other serial convertors as serial connections should not easily become critical. Many years ago I made a serial connection with my neighbor to play DOS games against each other (a cable in the air passing through windows). The connection was tens of meters without any issues.
Fedde
hello, after made the caps mode with the hibrid caps i have the sound distorted, what I can see is I haven´t power supply between c174 c173 c172 c180 because i have a short in this point, i thought it was the caps but i remove 2 caps and they are all good. any thoughts
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Look more closely for the short, it could be along one of the ceramic caps. Test impedance of the circuit across each cap, with a good enough multimeter measuring low ohms you can easily see which cap has the short.
Unless Soren changed the polarity of one of the caps in v5 its highly unlikely. This can easily be verified measuring the board without the added caps before doing anything else however.
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My psu is +/-11,9v after my tps regulators so is not high, i think this type (smd) reg is not the perfert choice.
Not the perfect choice but given the limited real-estate on the board it's likely the only economical choice. I switched mine with discrete 3.3V sparko's as I was worried about excess heat sitting next to the clock along with some saying that the stock LDO being noisier at higher input voltages.
I don´t think in bad caps, i think the capacitors have stressed any component, but which one, probably a semiconductor near this supply rail? which psu power this particularly row? This the negative rail -4v.
unbelievable,regarding the hybrids caps, they are all ok, but the c173 ceramic cap was completely shorted. problem solved, but honestly i have a bad feeling this ceramic caps are probably bad quality and probably I will have to remove all of them just in case...
I don´t know the capacity, but it seems a very large ceramic value like 20uf or more... maybe soren can tell the right value.
hey all for all that want Rpi 3 i2s to DSD stream to dam1021 i found a solution up to DSD128 🙂 Something cool for Raspberry Pi/ODROID: I2S/DSD isolator HAT with native DSD decoder