My aussie friends tell me the silicon chip article is built on a mega 8515
yes you need an eject
so much code has been written do it from scratch again why?
yes you need an eject
so much code has been written do it from scratch again why?
Hello,
Not in direct response to the previous post but still on topic:
Does anyone have the schematic and layout for the Rev 2. board that Sakda sells? http://www.audiodesignguide.com/sakdaweb/
I just received mine and it is not working. A few E-mails to Sakda has resulted in no response.
I need to try to figure out what is wrong and get this board going.
Thanks in advance for any help.
Not in direct response to the previous post but still on topic:
Does anyone have the schematic and layout for the Rev 2. board that Sakda sells? http://www.audiodesignguide.com/sakdaweb/
I just received mine and it is not working. A few E-mails to Sakda has resulted in no response.
I need to try to figure out what is wrong and get this board going.
Thanks in advance for any help.
QUOTE]so much code has been written do it from scratch again why?[/QUOTE]
Show me a source on C that has no bugs and is ready to be compiled for any uC.
I am not telling that mine would be perfect, but I will do my best. And I have no interest to sell it.
To my knowledge the previous progects were made somwhere in 1-3 month. That's Ok with me, I have no rush. It's my hobby not business.
Show me a source on C that has no bugs and is ready to be compiled for any uC.
I am not telling that mine would be perfect, but I will do my best. And I have no interest to sell it.
To my knowledge the previous progects were made somwhere in 1-3 month. That's Ok with me, I have no rush. It's my hobby not business.
Hi !
Here is my own CDRom based audio CD project :
http://g.dubuc.free.fr/Lecteur_CD_audio_DiY.html
Bye !
Gidu
Here is my own CDRom based audio CD project :
http://g.dubuc.free.fr/Lecteur_CD_audio_DiY.html
Bye !
Gidu
Gidu, very nice progect. Neatly made. Did you buy the controller or did you design it yourself?
-_nando-_, you asked me to make it on C, I agreed... It does not matter much for what uC it will be compiled. My choice is ATMega128. It has a lot of resources and pins and hopefully will stay on a market for few years at least. TQFP64 can be soldered by hands no problem. I also will make the PCB myself, actually I am already in progress.
-_nando-_, you asked me to make it on C, I agreed... It does not matter much for what uC it will be compiled. My choice is ATMega128. It has a lot of resources and pins and hopefully will stay on a market for few years at least. TQFP64 can be soldered by hands no problem. I also will make the PCB myself, actually I am already in progress.
Hi audiosteve.
How it does not work?
Power is Ok?
Clock on uC is Ok?
Power to the drive Ok?
I do not know this design, it's just common practice of finding what's wrong.
How it does not work?
Power is Ok?
Clock on uC is Ok?
Power to the drive Ok?
I do not know this design, it's just common practice of finding what's wrong.
I don't have any experience with ATmegas 😀 The most "powerful" uC that I have ever dealt with, is the PIC18F 80Pin TQFP family 😀 I'm not programmer, but my friend is and he have lots of interest on these things. Although is just hobby, would be very nice to have my own CD-Player. My friend just had a look at the ATAPI structure, and didn't beguin anything. Actually I'm not sure of his capabilities 😀
Could I use your code as reference to my friend? I think that he would use PIC...
Could I use your code as reference to my friend? I think that he would use PIC...
Hello Zanuda
I haven't dug too deep into this yet. Yes, all of your suggestions are good and SOPl. But I want to try to get my hands on a schematic, if possible, before I start to spend any time on debugging. If I can' find one then I will try to proceed w/o. BTW, this seems like enough of a divergence from this thread that I started another one to ask about this controller.
http://www.diyaudio.com/forums/showthread.php?s=&postid=1371614#post1371614
I haven't dug too deep into this yet. Yes, all of your suggestions are good and SOPl. But I want to try to get my hands on a schematic, if possible, before I start to spend any time on debugging. If I can' find one then I will try to proceed w/o. BTW, this seems like enough of a divergence from this thread that I started another one to ask about this controller.
http://www.diyaudio.com/forums/showthread.php?s=&postid=1371614#post1371614
-_nando-_
My code will be completely open. Anyone could use it.
audiosteve
Checking power and cables connections is not a debugging. It's just verivication that there is no simple and stupid mistakes. I do them sometimes 🙄
So what happens when you power it up? Display is on. Any characters on it, garbage? From my experience if the thing is based on uC it should work anyway if it is power. In most cases there is something wrong with attached pieces.
My code will be completely open. Anyone could use it.
audiosteve
Checking power and cables connections is not a debugging. It's just verivication that there is no simple and stupid mistakes. I do them sometimes 🙄
So what happens when you power it up? Display is on. Any characters on it, garbage? From my experience if the thing is based on uC it should work anyway if it is power. In most cases there is something wrong with attached pieces.
Zanuda said:
Thank you ! So i did buy the controller. Look here : http://eshop.diyclub.biz/product_info.php?cPath=198&products_id=436
Regards
Gidu
The last 2 editions of Silicon Chip magazine has a CDROM CD player project/kit based on ATMega chip also.
The code is written in assembler, and the source code isn't open.
I'll not buy it. I would buy it if it was C source code and open, just for learning purposes...
I'll learn absolutelly nothing buying it, as the PCB is done and only the HEX file is avaliable
I'll not buy it. I would buy it if it was C source code and open, just for learning purposes...
I'll learn absolutelly nothing buying it, as the PCB is done and only the HEX file is avaliable
you could always learn by dis-assembling the hex code......
laborious, but worthwhile if you want to change something
laborious, but worthwhile if you want to change something
Gidu said:
Gidu, unfortunately this product is not avalable at a moment. I tried to get it and got the answer that tha controller is not in the stock. You got lucky and I got back to my progect.🙄
