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Extracting ports
Posted: Wed Apr 09, 2008 5:43 pm
by goldwingers
I need to find a solution to extracting each byte of a port ie portb,0 to portb,7.
Then i need to transmit each of these bytes to the RS232 send function as a series of data.
Can anyone help out there
Ian
Re: Extracting ports
Posted: Thu Apr 10, 2008 9:23 am
by Benj
Hello Ian
A 8 bit port eg PortB is the equivalent of a Byte of data.
4 bits = 1 nibble
8 bits = 1 byte
16 bits = 1 word or int
Therefore you can transmit it over the RS232 in one action. If you wish to split a byte into 8 bit variables then you can do the following.
Input Icon - B0 - Byte bit0
Input Icon - B1 - Byte bit1
...
Input Icon - B7 - Byte bit7
Re: Extracting ports
Posted: Thu Apr 10, 2008 10:03 pm
by goldwingers
Thanks Benj,
After putting my Q on the forum, I sussed that one out. I can now do what i need thanks.