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oSharpGP2D12 Class Reference

Controls a Sharp GP2D12 IR module. More...

#include <osharpgp2d12.h>

Inheritance diagram for oSharpGP2D12:

Public Member Functions
	oSharpGP2D12 (IOLINE channel)
	Constructor specifying channel on A2D PORT.
CENTIMETER	value (void) const
	Distance from object in CENTIMETERs.
void	operate (bool b)
	True starts A2D; otherwise 0 on channel.
Static Public Member Functions
int	TCR1 (void)
void	TMCR (int iarb)
bool	HSQR (int chan, int val)
	Configures the host sequence register.
bool	HSRR (int chan, int val)
	Configures the host sequence request register.
bool	CPR (int chan, int val)
	Configures the channel priority register (Ref. TPU Channel Utilization).
bool	CIER (int chan, int cie)
	Configures the channel interrupt enable register.
int	CISR (int chan)
	Returns the channel interrupt status register.
void	CISR_clear (int chan)
	Clears the channel interrupt status register for the channel.
bool	TICR (int cirl, int cibv)
	Configures the TPU interrupt configuration register.
int	tpu_vector (IOLINE channel)
	Given a channel, returns the vector number to use for an interrupt.

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Detailed Description

Controls a Sharp GP2D12 IR module.

Operation

This is an object based upon the oA2D object to detect distance using an internal lookup table. Ref. oA2D for associated problems. The internal table begins at 8 cm. and farther out has big jumps as its to hard to be accurate toward the outer region.

Remarks

Be careful, as sometimes there might be noisy regions. On mine, the range inbween 50-60 centimeters is sometimes not very reliable and sometimes returns values closer. Of course, this is a sensor issue and not an implementation issue.

Sample Code

#include <oSharpgp2d12.h>
int main()
{
oSharpGP2D12 ir(0);
  while (ir.value() < 40)
  {
    // .. do something useful
  }
}

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Member Function Documentation

bool CIER (  int  chan, int  cie )  [static, inherited]

Configures the channel interrupt enable register. Parameters: int:  channel int:  1 enables; 0 disables

bool CPR (  int  chan, int  val )  [static, inherited]

Configures the channel priority register (Ref. TPU Channel Utilization). Parameters: int:  channel int:  priority

bool HSQR (  int  chan, int  val )  [static, inherited]

Configures the host sequence register. Parameters: int:  channel int  dependent upon function (CFSR) selected

bool HSRR (  int  chan, int  val )  [static, inherited]

Configures the host sequence request register. Parameters: int:  channel int:  dependend upon function

int TCR1 (  void   )  [static, inherited]

misnomer--should be TCR1 divisor--return number of clocks (PSCK,TCR1P modifications) Globally available object. Can be used in combination with TPU_REGISTER definition to say TPU_REGISTER->CFSR.BITS...

void TMCR (  int  iarb  )  [static, inherited]

was tpu_init Configures the channel function select register

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The documentation for this class was generated from the following file:

• osharpgp2d12.h

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