8-Bit PIC MCU GPIO

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Requirements

Coaching Interview 1. Gather top-level project constraints.

Interview SME and sponsor to fill in each of the requested constraints.

Major Tasks

What are the major engineering tasks required in order to accomplish the Job Outcome?

For a Job Outcome of "Custom LoRaWAN demo application using the SAMR34 Module", we could have the following tasks:

• Evaluate the functional fitness of the SAMR34 for the demo application
• Build/purchase a hardware prototype for the application
• Download/Install firmware development tools
• Write and test firmware for the application

Schmitt Trigger and Input Threshold Control Register

Overview of MCC Melody Libraries

Implementation and Delivery Constraints

Course Type (Lecture-Only, Hands-On)?

Course Duration (Hours)? 

Number of instructors required?

No Q/A sessions after class

Online Recorded Demos

Online Videos

Target Audience

Who are the major audience groups the training is targeted to?

Expected background knowledge and experience level?

Familiar with typical Electronic Tools (Oscilloscope, Volt Meter, Etc.)

Familiar with Microchip Development Tools including Microchip Nano Module

Familiar with MPLAB X and MCC Melody

Some Embedded C language Knowledge

Limited Embedded Control Design Knowledge

Limited knowledge of the Microchip PIC18 Architecture (Oscillator, Reset Circuitry, Programming Configurations, etc.)

Major Job Outcome

What will Attendees be able to produce or accomplish back on the job after taking this training? State it as a noun-phrase, for example:

"Customized LoRaWAN demo application using the SAMR34 Module"

At the end of this training the student will be able to setup I/O ports on Microchip PIC MCU devices for digital inputs (Sensors), Digital Outputs (Indicators) using the MPLAB Code Configurator (MCC) Melody Libraries.

Due Date

Nov 1, 2021

8-Bit PIC MCU GPIO

This Class will cover all the features associated with the GPIO module in the 8-Bit PIC MCU Family. There will be Demonstrations to show how to set up the Peripheral for types of inputs and outputs. There will be discussions on where certain features will be useful in real world examples. And also cover common pitfalls you may encounter with GPIO.

Course Outline

Coaching Interview 3. Develop a Course Outline

From the Job/Task analysis, group content together into chapters and name the chapters.

"Knowledge" (Concept/Fact/Principle) bubbles map to "Lessons"

"Procedure" bubbles map to "Lab Exercises" or "Quizzes" or other hands-on activities.

Typically, a 1:1 relationship exists between Major Tasks and Chapters. However, you are free to group knowledge and procedures from several different Tasks into the same Chapter in the course outline.

When finished, the TTE will produce a course outline in word format that captures this structure.

Conclusion

Summarize items mentioned above

Common Pitfalls

IOL vs VOL curves

Improper threshold voltage selection

Suggestion of what to do with unused pins (output driving zero?)

Floating pin causes excessive power consumption

ANSEL misconfigured causes the pin to read zero at all times

Pullup interferes with external source driving the pin

Peripheral Pin Select Register

Demonstrate PPS using the UART Hello World using Data visualizer

What is UART (basic description)

It purpose and when to use it

What is Peripheral Pin Select

Advanced Digital Output Control

Slew Rate control Register

Demonstrate Slew Rate Register

What is Slew Rate Control

Advanced Digital Input Control

Input Threshold Control Register

Graphic images of Scope Plot or Similar

What is input Threshold

Schmitt Trigger

Graphic images of Scope Plot or similar

Purpose and when to use it

What is a Schmitt Trigger

Weak Pull Up Register

Demonstrate WPU Register

It's purpose and how to enable

What is a WPU

Interrupt On Change Register

Demonstrate Interrupt on Change

When to use it and how to use it

What is Interrupt on Change

Using a GPIO to Control an LED (Digital Output)

Demo using PORT, LAT, TRIS, and ANSEL Registers

Overview of MCC Melody

GPIO Libraries within MCC Melody

Introduction to PIC MCU GPIO Architecture

ANSEL Register

Analog vs Digital State

TRIS Register

Input vs Output

Tristate buffer truth-table

PORT and LAT Registers

PORT Structure Diagram