Can BSII manipulate decimal numbers as a result of an arithmetic operation ?

Chris23

·In the following code·rpm is measured through an A/D converter and the value is stored in the variable ''curr_frequency''·. The ''set_frequency'' variable represents the desired rpm. The variable diff is used internally in the code·as a parameter to control an electric motor.·So this value·is important for·the code. if a specific time ''curr_frequency= 2005'', then diff will be··0.25 . My question is...BSII will understand 0.25 or 0 as a value for the variable diff ? This is only an arithmetic example. Similarly if·diff=5.7 BSII will understand 5 or 5.7 ?...· etc

Thank you in advance !

set_frequency VAR Word
curr_frequency VAR Word
set_frequency=2000

·Get_frequency:

· HIGH CSad································· ' Deselect ADC to start.
· HIGH CLK
· PAUSE 2
· LOW CSad······································ ' Activate the A/D.
· PAUSE 2
· SHIFTIN DInput,CLK,MSBPRE,[noparse][[/noparse]curr_frequency\20]· ' Shift in the data.
· HIGH CSad····································· ' Deactivate A/D.
· RETURN

·diff = (curr_frequency-set_frequency)/20
·

Tom Walker

Internally, the Stamp treats all numbers as integers..so 5.7 would be 5. If you need greater precision, Dr. Tracy Allen covers many, many aspects of such things at www.emesys.com.

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