Expanding inputs, using shiftin

TonyA

Hi,

I'm just learning about using shiftin. Would it be possible to shiftin 12 bits and assign each bit a separate variable?

shiftin datapin, clockpin, mode, [noparse][[/noparse]var1\1, var2\1, var3\1, ... var12\1]

I am using a shift register that will send out the state of 12 switches to the stamp. I need to read the state of each individual switch. var1 is the variable for the state of the 1st switch, etc. I am putting one bit in each variable.

Do I have this right?

Thanks for any help.
TonyA

Tracy Allen

You could do that, but it is easier to use the Stamp's aliasing for variable names:

switches  VAR Word

sw0 VAR switches.bit0
sw1 VAR switches.bit1
sw2 VAR switches.bit2
sw3 VAR switches.bit3
sw4 VAR switches.bit4
sw5 VAR switches.bit5
sw6 VAR switches.bit6
sw7 VAR switches.bit7
sw8 VAR switches.bit8
sw9 VAR switches.bit9
sw10 VAR switches.bi10
sw11 VAR switches.bit11

shiftin datapin, clockpin, mode, [noparse][[/noparse]switches\12]
IF sw5 THEN DEBUG "5 closed",cr

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Tracy Allen
www.emesystems.com

TonyA

I see, Thanks for the help.