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Using USB of PIC18F2550

 
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Joined: 20 Oct 2010
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Using USB of PIC18F2550
PostPosted: Wed Oct 20, 2010 1:46 am     Reply with quote
Hi all,

I have a problem on writing a code to send the data through USB to my computer. I plan to send 4 bits at one time. Do I need to convert the data?
Can I know the form of data to transmit through USB? Is string or integer or in character?
I am using C language in CCS software and PIC18F2550.
Anyone have the code or relevant info? Can send to me. Thanks.
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Wed Oct 20, 2010 1:31 pm     Reply with quote
The smallest unit is a byte. So, just put your 4 bits into the lower 4 bits
of a byte. Make the upper 4 bits be 0. Then send the byte.
Example:
0000xxxx

Your data is in the lower 4 bits of a byte , shown as "xxxx" above.
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