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.

First suggestion: try to describe your problem in a way that mere mortals, other than yourself, can understand.

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

Quote:

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Originally Posted by rups21489

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.

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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.