hello i am really a newbie(an electronics student) and i have to use at85c51snd3b but i dont know how to set uvision for it. there is no proper target in device database. But uVision tells it supports.
actually i am supposed to built an mp3 player. i'll really appreciate any help for it. (at85c51snd3b1 does not include an built in mp3 decoder and i have to implement it by my own way. but again i have no idea about mp3 decoding(but i know about DSPs and microcontroller, and i am good at programming)
thx a lot for any help
Dear Karatas,
Go to Atmel site, download the documentation. READ-IT.
Them, STUDY IT.
You will find more info on the MP3 decoder and so on.
About the how to set up microvision, guess what?
Go to http://www.keil.com and read the manual.
And them, STUDY the manual.
We shall be very happy to help you after you read the manuals.
Ed
The OP stated: at85c51snd3b1 does not include an built in mp3 decoder
Ed posted :Go to Atmel site, download the documentation. READ-IT. Them, STUDY IT.
Ed, I would have posred the very same, but since I refuse to use Atmel, I did not (could not state the below).
Based on rudimentary info in various posts I assumed that the OPs statement cited above was false and due to total ignorance of the importance of reading up on stuff before using it.
was my assumption correct?
Erik
"I assumed that the OPs statement cited above was false"
It is, indeed, false.
Right on the front of the datasheet, the 4th line from the top of the page says, "MP3 and WMA Decoders"
Clearly the OP hasn't even looked at the Datasheet - let alone read it!
Dear Erik,
As Andy said, the info on the MP3 decoder is on the first page.
Guess this type of people never experienced an "EUREKA" moment in their lives, for all I hear from them is "gimme a circuit"; "gimme something"; "tell me how..."
I do worry about having a car accident at old age, and falling on the hands of a young surgeon that will go to a computer and search: "How to treat multiple fracture".
Do not laugh. It is not so funny.
No, no. You'll be fine with a surgeon you _searches_ for the treatment of multiple fractures.
The real problem is if you get a surgeon who doesn't search, but instead makes a post: 'PLZ GV INSTR HOW TRT MULT FRAC!!!!!'.
...a surgeon who just posts "HOW 2 TRT CRASH VICTIM???" - without even stating the nature of the injuries!
hold on... hold on a second. "any help will be appreciated" doesnt mean "i need a whole project". First of all i read all manuals and documents related with this product. I wish you wouldnt say there is a mp3 decoder in it, with just looking first page. because actually this product is an dsp processor. its ancestors hold a built -in hardwired mp3 decoder but this! it implements all job by firmware.(if you dont believe just search keyword "decoder" on datasheet.) Here what it states :
"Prior to enable the digital audio processor by setting the DAPEN bit in APCON1(1), the C51 must load the processor codec firmware which is the stream decoder or encoder."
actually (i think) this product is a brandly new. and have not much resources(a programmer,a datasheet and a 2 application notes about high speed usb etc...but no firmware or related user guide.) and believe me i am doing my best.
Maybe i am wrong but those are what i understand from datasheet
and one last thing :
i read the article "adding custom parts to the device database"(http://www.keil.com/support/docs/1421.htm) and downloaded proper header file. But i am bad at soldering and having problems with board i designed. thats why i want to be sure with parameters that i set for uvision is correct.(and error is at assembly)
You seem to be a bit unlucky that they only have software for the snd1 and snd2 variantes.
"Please fill out and submit the form below to obtain the access and password to the restricted area. This will allow you to access up-to-date resources required to develop application using AT8xC51SND1C, AT8xC51SND2C or AT85C51SND3 devices."
www.atmel.com/.../mp3_registration_form.asp
Where did you find that link?
Andy Neil : really thanks for link. i filled it out and still waiting for them to sen password etc...( should it take so long to send it?) I hope i'll got some firmware and other helpful resources.
By the way, i mailed to atmel about resources and they told me, i had to purchase their development kit, for full firmware support! i am a student and i am not able to buy a $700 costing kit just for 2-3 simple firmware. do you have any other idea?
or will they send me a password for free instead of selling a kit? lets see:)
"simple firmware"
How do you know it's "simple" firmware?
If it's doing all the MP3 stuff, it'll be anything but simple! And it'll probably be subject to royalties.
Couldn't you use one of their other chips which does have the MP3 built in?
Or perhaps: www.vinculum.com/prd_vmusic1.html
www.atmel.com/.../tools.asp
Yes, I have already visited that page, but all references are for the SND1 or SND2 chips, and I didn't find any links that pops up a registration form. They either moved to other pages, or opened downloads of SND1/SND2 software or documentation.
In the menu, I found a link 'Support Center' and in the footer i found 'Contact'. However, I didn't find a link to the registration form in your previous post.
Hence, my question where you managed to locate that link.
lesson learned; investigate fully before selecting derivative. so, now, go buy a snd1 or a snd2