schematic for C3088 interface with parallax

rook128

hi,
i am new to parallax propellers, and for my project i have to interface the c3088 camera with parallax propeller, i found the code for the prop, and ill post the link:

http://67.104.29.51/objects/587/

but i couldnt find any schematic to do so anywhere. can anyone help me with its interface by providing its schematic and to tell where to start from, and how to proceed in a step wise manner? at the moment im completely lost.

i also have another question, after the interfacing, i will have to packetize the images (divide the data into frames and add headers) coming into the propeller and then transmit it to another module using the propellers UART. is there any available code to do this? has anyone done something similar?

any help would be much appreciated!

Franklin

Do you have a link to the datasheet/manuals on the camera you have?

rook128

Franklin wrote: »

Do you have a link to the datasheet/manuals on the camera you have?

http://www.arm9board.net/download/OK6410/docs/datasheets/OV9650.pdf

the following site has an implementation guide in pdf format,
http://www.techtoys.com.hk/Components/OV9650_MOD/OV9650%20CMOS%20Camera%20Module.htm

and this site has a software application guide:
http://wenku.baidu.com/view/64b5a55377232f60ddcca1db.html

Franklin

Sorry, WAY over my head.

kwinn

Here is a list of the signals with the prop pins to connect them to. You can use one of the serial objects (Full Duplex Serial) in the OBEX for serial transmission but I do not know of any object for packetizing the data. That would have to be done on the fly since the prop does not have enough memory to hold a high rez image.


Output signals from the camera chip to the prop.

D0 – D7 P0 - P7 - data bits from the ADC's.

FODD P8 – Not sure what this signal is. Matches nil on schematic or chip data sheet

HREF P9 - HREF output. Horizontal synch?

VSYNCH P10 - Vertical synch signal

PCLK P11 - Pixel clock output

SIO_C P28 – Serial clock
SIO_D P29 – Serial Data

PS - keep in mind these are the port bit numbers not the physical pin numbers.

rook128

Thanks!

are these all the connections? what about connecting the prop to an oscillator like ATMELs and PICs are? any connections with resistors of any sort? sorry for such a basic question, like i said i just started on the propellers.
and for connecting with the serial terminal, the RS232 port would be used, right? i read somewhere that i would need to connect the prop to the usb port =|
and is it possible for me to see the schematic for this design, with the prop connected with the camera and the computer....

kwinn

Are you using one of the propeller boards or a bare prop chip and assembling a circuit?

rook128

I'm not using a board, just have the propeller chips at the moment. if the boards will help with the interfacing then i can get one.

rook128

rook128 wrote: »

Are you using one of the propeller boards or a bare prop chip and assembling a circuit?

I'm not using a board, just have the propeller chips at the moment. if the boards will help with the interfacing then i can get one.

kwinn

I really would suggest you start with a board. The quickstar board is $25.00 and the only thing else you would need is the USB A to mini-B cable ($3.99). It is even powered from the USB connector. The crystal, capacitors, power supply prototyping board,etc. that you would need to get one of the chips to work for this application would probably cost you more.