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Jambo DAC - Page 15

post #211 of 219
Thread Starter 

Hi Subbu,


Glad to hear some interest.


You'll need a parallel LCD with HD44780 driver. I've set it up to use 4 bit parallel mode as I didn't have enough spare pins for anything else.


Pretty busy just now but I'll get the code to you when I have time and also a schematic.





post #212 of 219

I found an official pdf that lists all the sampling frequencies from S/PDIF.




post #213 of 219

Hi Jamie,


Could you post the schematic and the code when you get some free time? 



Edited by free2dev - 6/17/12 at 10:58pm
post #214 of 219
Thread Starter 

Hi Folks,


Home again - so if anyone wants a kit please let me know this week.




Sorry for the delay. Please find the pinout below - but crosscheck it with the particular HD44780 LCD that you get, the below is quite standard but not 100% in my limited experience. I've noticed that Pin3 on the LCD varies a bit. From memory I think Pin3 and Pin15 can be used to vary the contrast and brightness.


LCD Pin Description Board Pin Micro Pin
1 GND    
2 +5V    
3 GND    
4 Register Select SW3 13 (PB1)
5 R/W SW5 14 (PB2)
6 Enable SW7 15 (PB3)
7 NC    
8 NC    
9 NC    
10 NC    
11 DB4 LED1 16 (PB4)
12 DB5 LED3 17 (PB5)
13 DB6 LED5 18 (PB6)
14 DB7 LED7 19 (PB7)
15 +5V (    
16 GND    
  Source Select SW SW1 12 (PB0)


Code/hex to follow!






post #215 of 219

Hi Jamie,


Thanks for the pinout. Let me know once you have the new code/hex ready. 



Edited by free2dev - 6/17/12 at 10:58pm
post #216 of 219
Thread Starter 

Howdy folks,


I'm  home at the moment, if anyone wants a kit let me know within the next 24 hours!!  I'm testing the LCD firmware a bit more just now, it looks pretty good so I think I'm going to release it.


I also made a power supply control board which makes the LED on my on/off switch sleep like an apple LED and controls some relays. Remains to be seen what kind of audio performance will result from using relays however.





post #217 of 219
Thread Starter 

Evening!  I'm home this week if anyone is interested in a kit!





post #218 of 219

I think i want one

post #219 of 219

Dear Jambo,


I have been trying to get the WM8805 working in hardware mode to connect it to a TDA1541(A) using SPDIF as input.

I have trouble getting it into I2S 16 bit mode (in hardware mode).

If you could provide me with a schematic with your solution, I would be very greatful.


Kind regards,



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