In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jim Fouch wrote:

This may seem simple, but I was wondering what was the best way to clear the states of only 4 pins on a port w/o disturbing the others.
 

In my project I'm using Port B (pins 1-3) for an A/D and also pins 4-7 to drive a stepper motor . 

 

Here is the code I'm using now...

 


[code]
SendMotorCommand:
 Read HalfSteps + StepIndex, Temp1
 RB.7 = 0
 RB.6 = 0
 RB.5 = 0
 RB.4 = 0
 RB = RB or Temp1
Return 

  

RelaxMotor:
 RB.7 = 0
 RB.6 = 0
 RB.5 = 0
 RB.4 = 0
Return 


  

HalfSteps: 

  Data %00000000
  Data %00010000
  Data %00110000
  Data %00100000
  Data %01100000
  Data %01000000
  Data %11000000
  Data %10000000
  Data %10010000
 


 

Just wondering is there is a better way to address (clear) the states of only 4 pins on a port.

Thanks,

 

Jim[/code]

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