MCP2200 datasheet(13/34 Pages) MICROCHIP

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 2010 Microchip Technology Inc.

DS22228A-page 13

MCP2200

Precondition:

The Vendor and Product ID must have been

specified by SimpleIOInit.

Parameters:

IOMap - one byte, with each bit corresponding

to each GP pin.

0 for output, 1 for input.

Returns:

Function returns true if the transmission is

successful, returns False if there the

transmission fails.

Example:

<code>

(SimpleIOClass::ConfigureGPIO(OutputPacketBuf

fer) == SUCCESS)

lblStatusBar->Text = "Success";

else

lblStatusBar->Text = "Invalid command

" + SimpleIOClass::LastError;

</code>

2.3.1.14

SetPin

bool SimpleIOClass::SetPin(unsigned int pin)

Summary:

Sets the specified pin.

Description:

Sets the specified pin to one.

Precondition:

Must have previously been configured as an

output via a ConfigureGPIO call.

Parameters:

pin - The pin number to set (0-7)

Returns:

Function returns true if the transmission is

successful, returns False if there the

transmission fails.

Example:

<code>

if (SimpleIOClass::SetPin (2))

{

lblStatusBar->Text = "Success";

}

else

lblStatusBar->Text = "Invalid command

" +

SimpleIOClass::LastError;

</code>

Remarks:

none

2.3.1.15

ClearPin

bool SimpleIOClass::ClearPin(unsigned int

pin)

Summary:

Clears the specified pin.

Description:

Sets the specified pin to zero.

Precondition:

Must have previously been configured as an

output via a ConfigureGPIO call.

Parameters:

pin - The pin number to set (0-7)

Returns:

Function returns true if the transmission is

successful, returns False if there the

transmission fails.

Example:

<code>

if (SimpleIOClass::ClearPin (2))

{

lblStatusBar->Text = "Success";

}

else

lblStatusBar->Text = "Invalid command

" +

SimpleIOClass::LastError;

</code>

Remarks:

none

2.3.1.16

ReadPin

bool SimpleIOClass::ReadPin(unsigned int pin,

unsigned int *returnvalue)

Summary:

Reads the specified pin.

Description:

Reads the specified pin and returns the value

in returnvalue.

If the pin has been

configured as Digital Input, the return value

will be either 0 or 1.

If the pin has been

configured as Analog Input, the pin will be

read by the ADC and return a 10 bit value,

right justified.

Precondition:

Must have previously been configured as an

input via a ConfigureGPIO call.

Parameters:

pin - The pin number to set (0-7)

returnvalue - the value read on the pin (0 or

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