Single LED - On-Off With Blink

Single LED - On-Off With Blink

 

Functional Description

Driver Properties

Driver Specifications

Interface Schematic

 

Functional Description

This LED output can drive any general purpose LED with up to 10mA of current.

 

Hardware Interface: The PSoC pin sources current to a LED or sinks current from a LED through a current limiting resistor based on the property selected by user.

 

Software Interface: The LED state is controlled with an 8-bit unsigned byte. 0 = Off, 1 = On, 2 = Blink.

 

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Driver Properties

User Configurable Properties:

 

·        Current Mode: Specifies the current flow with respect to the PSoC pin connected to the LED.  The PSoC pin can be configured to source or sink the LED drive current.

·        Blink Rate: The blink rate is adjustable between 0.25 Hz and 4 Hz. Default is 1 Hz.

 

Non-Configurable Properties:

 

·        InitialState: This is initial pin state.

·        DriveMode: This is PSoC drive mode (Strong).

 

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Driver Specifications

·        Power supply:        From 3.3V to 5.25V.

·        Forward Current:   10mA (max)

 

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Interface Schematic

Sourcing Current LED

 

CMXIMAGE_BLINKINGLED_sourcing_chematic.gif_CMIMAGE

 

Sinking Current LED

 

 

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