Thread: hex to char problem

  1. #1
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    hex to char problem

    hey guys,

    i am trying to communicate serially with a camera through my microcontroller

    i have to send hex command 56:00:26:00

    the uart function only takes in char pointer to send the data

    so in char, command is V:nullchar:&:nullchar

    nullchar terminates the flow and only V is sent

    pl suggest something.

  2. #2
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    First suggestion: try to describe your problem in a way that mere mortals, other than yourself, can understand.
    Right 98% of the time, and don't care about the other 3%.

    If I seem grumpy or unhelpful in reply to you, or tell you you need to demonstrate more effort before you can expect help, it is likely you deserve it. Suck it up, Buttercup, and read this, this, and this before posting again.

  3. #3
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    Have you tried sending "56:00:26:00" as a C-style string?

  4. #4
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    Quote Originally Posted by rups21489 View Post
    hey guys,

    i am trying to communicate serially with a camera through my microcontroller

    i have to send hex command 56:00:26:00

    the uart function only takes in char pointer to send the data

    so in char, command is V:nullchar:&:nullchar

    nullchar terminates the flow and only V is sent

    pl suggest something.
    If it is a Canon Camera, take a look at CHDK, you'd find many of this kind of Questions answered in their developer Wiki.

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