functions to combine two hexadecimal numbers
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I'm doing a project that involves taking in data from an EMG, running it through a function in Matlab, and sending commands to a series of motors. The motors take a series of 2 hex numbers, one 2 digits, one 4 digits preceded by the letter d. For example, d0103FF. My question is, how can I write a series of functions that takes the difference between two numbers, converts it to a zero padded four digit hexadecimal, and then tacks it onto the end of dXX where X is another number.
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Chaowei Chen
am 25 Sep. 2011
can you give an example about the I/O? If the format is regular, my approach would be to treat d0103FF as a string and read it digit by digit
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Rick Rosson
am 25 Sep. 2011
y = desired - actual;
h2 = dec2hex(x,2);
h4 = dec2hex(y,4);
out = [ 'd' h2 h4 ];
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Jan
am 25 Sep. 2011
SPRINTF('%x') and the corresponding FPRINTF commands are very fast for the conversion of hexadecimal and decimal numbers - mucgh faster than HEX2DEC and DEC2HEX:
out = sprintf('d%.2x%.4x', x, y)
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