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Best controller to interface camera over RS232

Dhanraj kmr

Hi all,
I have a project that is capturing image using a camera and string the images in micro SD card using a microcontroller.

Camera link is below.
http://www.tigal.com/1787

Interface: RS232
Min size of SD card support required is 1GB.

Since the camera sends the image data in
Snapshot Picture
Preview (RAW) Picture
JPEG Picture these formats, I would like my controller to receive them as it is and store them in SD card either using file system or without file system (No complex processing).
Controlling the camera will be done by my controller.

My questions are:
1. Does a windows computer can read an image file without file system (Raw image)?
2. Which controller will be cheep and best for this project (Cheep evaluation board is better; I can’t invest more than 200USD).
3. To interface SD card, LPC is having dedicated pins for them. So selecting LPCxxxx series would be better option.

Parents
  • 0 in reply to Dhanraj kmr

    "i believe i have not mentioned anywhere that i can use a PC to interface the Cam directly"

    Tamir's point was that you could avoid all the microcontroller and SD-Card issues by simply connecting the camera direct to the PC's COM port.

    Had you considered that?

    "Do we need a software application running on PC to understand the Raw file and read the raw data from SD card and convert them to .jpeg correct image format?"

    If you store in "raw" format, then you will obvisouly need to convert that if you want it in JPEG or any other format!

Reply
  • 0 in reply to Dhanraj kmr

    "i believe i have not mentioned anywhere that i can use a PC to interface the Cam directly"

    Tamir's point was that you could avoid all the microcontroller and SD-Card issues by simply connecting the camera direct to the PC's COM port.

    Had you considered that?

    "Do we need a software application running on PC to understand the Raw file and read the raw data from SD card and convert them to .jpeg correct image format?"

    If you store in "raw" format, then you will obvisouly need to convert that if you want it in JPEG or any other format!

Children
  • 0 in reply to Andy Neil

    >>Tamir's point was that you could avoid all the microcontroller and SD-Card issues by simply connecting the camera direct to the PC's COM port.

    Had you considered that?

    Thanks for your reply and I understood that. But when i discussed the project, would not above be the first idea to come in anyone's mind, since it occured to me at first.

    According to the datasheet of microCam,

    4.2 GET PICTURE (AA04h)
    The host issues this command to request a picture from the uCAM.
    4.2.1 Picture Type
    Snapshot Picture 01h
    Preview (RAW) Picture 02h
    JPEG Picture 05h

    wont this gives any clue? since the Cam is sending in a specified file formate (.JPEG), cant i take as it as to SD card? But i think the possibility is less. correct?

  • 0 in reply to Dhanraj kmr

    So why don't you just connect the camera to the PC, then?

    What is the point of complicating the issue with a microcontroller and SD Card??

    What, exactly, is your goal here?

    www.catb.org/.../smart-questions.html

    Connecting to a PC COM port would probably be a good exercise anyhow - for you to gain familiarity with the camera, its operation, and its capabilities...