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LED Control via I2C

Pulse-based Control Application

系统可能需要单个LED，可以在非常宽的频谱中改变颜色。为实现这一目标，RGB LED控件用于改变不同颜色的占空比。一世²C is used in this application as an easy way to change duty cycle.

一世ngredients

Any GreenPAK with I²C
RGB LED.
Three resistors

GreenPak图

Design Steps

将GPIO引脚配置为RGB阴极连接的开漏输出。
添加LUT逻辑和CNT / DLY2以创建具有EN信号的发电机。
配置CNT / DLY块上升边延迟.
为每个输出添加和配置LUTSTechnique: Configuring Standard Logic w/ LUT Macrocells.
Connect each LUT output to the desired output pins.
一世²C virtual inputs can be changed individually or simultaneously using the I²C virtual output address.
CNT / DLY块的计数器数据可以单独或同时使用I来改变²C.

资源

GreenPAK Designer files

LED控制通过I2C GP(4.43 KB)

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