help me as soon as possible plaese in Matlab Simulink

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Hey guys could any one help me as soon as possible, i want to use 16 hexadecimal as input in Matlab Simulink , which block can i use in this case ?:?:
 

the constant block, change the value to 16 in a fixed pioint type.
 

Thank you Tricky for your reply . i tried but it does not accept i want to input (0123456789abcdef). from were could i (change the value to 16 in a fixed pioint type) .
 

afaik, you cannot input hex values in simulink at all. You need to input the decimal equivolent of the hex value you want.

---------- Post added at 15:52 ---------- Previous post was at 15:52 ----------

fixed point type is done via the "signal attributes" tab if you have the fixed point toolbox installed.
 

thank you for reply, i found this fixdt(1,16) in "signal attributes" is this ok , i tried but it gave me a different value on display (hex format) .
hex (0123456789abcdef)= dic(81985529216486900)
 

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