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Another CDROM Controller Kit

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K

khr

Member
Joined 2006
buttons

hi pradit_p,

I am going to place a player based on your kit in a box (maybe computer case or similar). I see a problem that control buttons resides on the board and there is no way to attach the board to the flat surface because some pieces are higher than buttons. What can you suggest regarding the buttons, is it possible to detach them off the board or anything else? Thanx.
 
N

-_nando-_

Member
Joined 2005
acousticlassaudio.com
pradit_p said:
Hello Davesaudio
My basic is industrial engineer so I don't know much about computer language what is HLL, ICSP ? If I know what you mean I can explain more.
But I can told you that I use assembly for my PIC16F877A.

For below is my MUCOP Schametic modified to suitable my testboard.
Click to expand...


In this schematic, the PIC pin 6 is connected through a 10k resistor to +Vcc instead +5V. Is it a draw error ? Should I connect it to +5V or +12V?


Thanks !
 
N

-_nando-_

Member
Joined 2005
acousticlassaudio.com
I posted the same question in other topic and I received the answer that it must be connected to +5v, as I did.

I just imported the HEX and programmed, but it isn't working properly.

It just work with one of a few drivers that I have, and the current track time is slower that the our real time, so when music is finishied, the current time don't match with the whole track time.

What the hell is happenning??


Thanks pradit !
 
alexg

alexg

Member
Joined 2005
pradit_p said:
Transformer Coupling at the input of my DAC, made from 30 turn of small copper wire and small ferite ring core.
Click to expand...

Sorry for this newbie question, so both primary and secondary with 30 turns each, then one end of the primary to the ground of the cdrom and one to the digital signal?

So basically, you cannot just solder an RCA jack to the digital out of the CDROM?
 
alexg

alexg

Member
Joined 2005
pradit_p said:
Normaly you can If your Dac have small C Coupling input.
But I use transformer coupling replace to C coupling for better sound.

Pradit
Click to expand...

Sent you an email regarding the controller.

So how do I make the transformer coupler? I will check if my DAC have the C coupling input, am using a monica2 from Yeo of DIYparadise.

Thanks.
 
I

ID_

Member
Joined 2006
pradit_p, is the code for PIC16F877A the same, as for the 16F877. I build this cotroller, but with no sucsess. Maybe I made some mistake in design of PCB. The LCD is "empty" and none of the buttons are working. My englis is not so good, so I hope you understand my question. Is it possible to get .asm without IR? I want to make the text of comands, that are diplayed on the LCD in my language. I will build just one (1) controller for me.

Cheers, _ID_
 
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