Cypress CE219490 Посібник користувача

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Objective

This example demonstrates the flexibility of Smart I/O in PSoC

hardware with no CPU usage beyond initialization.

Requirements

Tool: ModusToolbox™ IDE 1.1

Programming Language: C

Associated Parts: All

PSoC 6 MCU

Related Hardware:

PSoC 6 BLE Pioneer Kit, PSoC 6 WiFi-BT Pioneer Kit, PSoC6 WiFi-Prototyping Kit

Overview

This example uses a PWM resource and Smart I/O in PSoC 6 MCU to implement a ramping LED, where an LED gradually

cycles through increasing and decreasing brightness levels. There is no CPU usage except for the initialization of PWM and

Smart I/O.

Hardware Setup

This example uses the kit's default configuration. See the kit guide to ensure the kit is configured correctly.

Note: The PSoC 6 BLE Pioneer kit and the PSoC 6 WiFi-BT Pioneer kit ship with KitProg2. ModusToolbox only works with

KitProg3. Before using this code example, make sure that the kit is upgraded to KitProg3. See ModusToolbox Help >

ModusToolbox IDE Documentation > User Guide; section PSoC 6 MCU KitProg Firmware Loader. If you do not upgrade, you

will see an error like "unable to find CMSIS-DAP device" or "KitProg firmware is out of date".

Software Setup

None.

Operation

Follow the instructions that came with your kit to make sure that your kit is connected to your PC

Connect the kit to your PC using the provided USB cable.

Import the application into a new workspace. See KBA225201.

Build the application. Choose Project > Build All.

Program the PSoC 6 MCU device. In the project explorer, select the mainapp project. In the Quick Panel, scroll to the

Launches section and click the Program (KitProg3) configuration. Program configurations also build the code.

Using a jumper wire, connect P9[4] to P13[7].

You can observe the ramping effect on the LED connected to P13[7] on the kit.

Debugging

You can debug the example to step through the code. Use the Debug (KitProg3) configuration. If you are unfamiliar with how

to start a debug session with ModusToolbox IDE, see KBA224621.

www.cypress.com

CE219490 – PSoC 6 MCU Ramping LED

parts

Document No. 002-25568 Rev.*A

6 MCU, by implementing an LED ramping effect exclusively in

using Smart I/O