DM240013-2 Datasheet DM240013-2 | P1-P3

Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199

www.microchip.com

The Microchip name and logo, the Microchip logo, and MPLAB are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries. REAL ICE and PICkit are trademarks of

Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned

DS50002142A

Microstick for 5V PIC24 K Series Devices

Overview

The Microstick for 5V PIC24 K Series Devices is designed to provide an easy-to-use,

economical development environment for 5V, 16-bit microcontrollers. The board

includes an integrated debugger/programmer, a socket for the target microcontroller

chip and pins that facilitate insertion into a prototyping board for extremely flexible

development.

Installing MPLAB

IDE and C Compilers

The MPLAB

Integrated Development Environment (IDE) should be installed prior

to using the Microstick for 5V PIC24 K Series Devices. This board is designed to

run with MPLAB X IDE Version 1.60 or later. While the MPLAB IDE provides

assembler tools for development, most code examples provided for Microchip

devices are written in C language and require a C compiler to be installed. Micro-

chip’s MPLAB XC16 Compiler seamlessly integrates into the MPLAB IDE. Both

the MPLAB IDE and XC16 Compiler are free and available for download at:

www.microchip.com/mplabx and www.microchip.com/xc16, respectively.

(1)

Running Applications

After downloading and installing the development tools, please use the following

procedure to build, run and debug your software:

1. Open the MPLAB X IDE application and close any open projects.

2. Open the Microstick application project by navigating to the installation directory

and selecting the “pic24fv16km202_microstick_demo.X” folder.

3. Connect the Microstick board to the development computer via a USB cable.

4. Open the project properties by selecting File->Project Properties

5. Ensure the correct device is the selected device in the Device

dropdown

menu.

6. Select the Microstick from the Hardware Tool

. It will be listed under

Microchip Starter Kits>Starter Kits (PKOB)

7. Build, program and run the Microstick demo application by selecting

Debug>Debug Project

8. Install Jumper, JP1, to enable the on-board LED for RA0 to ensure the

program is running.

For more information on building, running and debugging your application, refer to

the MPLAB IDE Help.

Note 1: MPLAB XC16 Evaluation Version (free) – All optimization levels are

enabled for 60 days, then limits to optimization, Level O1. The compiler

will continue to function, but code size may increase. There are no

restrictions on the use of this C compiler (see license text for details).

Americas

Atlanta - 678-957-9614

Boston - 774-760-0087

Chicago - 630-285-0071

Cleveland - 216-447-0464

Dallas - 972-818-7423

Detroit - 248-538-2250

Indianapolis - 317-773-8323

Los Angeles - 949-462-9523

Phoenix - 480-792-7200

Santa Clara - 408-961-6444

Toronto - 905-673-0699

Europe

Austria - Wels - 43-7242-2244-39

Denmark - Copenhagen - 45-4450-2828

France - Paris - 33-1-69-53-63-20

Germany - Munich - 49-89-627-144-0

Italy - Milan - 39-0331-742611

Netherlands - Drunen - 31-416-690399

Spain - Madrid - 34-91-708-08-90

UK - Wokingham - 44-118-921-5869

Asia/Pacific

Australia - Sydney - 61-2-9868-6733

China - Beijing - 86-10-8569-7000

China - Chengdu - 86-28-8665-5511

China - Chongqing - 86-23-8980-9588

Asia/Pacific (Continued)

China - Hangzhou - 86-571-2819-3187

China - Hong Kong SAR - 852-2943-5100

China - Nanjing- 86-25-8473-2460

China - Qingdao - 86-532-8502-7355

China - Shanghai - 86-21-5407-5533

China - Shenyang - 86-24-2334-2829

China - Shenzhen - 86-755-8864-2200

China - Wuhan - 86-27-5980-5300

China - Xiamen - 86-592-2388138

China - Xian - 86-29-8833-7252

China - Zhuhai - 86-756-3210040

India - Bangalore - 91-80-3090-4444

India - New Delhi - 91-11-4160-8631

India - Pune - 91-20-2566-1512

Japan - Osaka - 81-6-6152-7160

Japan - Tokyo - 81-3-6880-3770

Korea - Daegu - 82-53-744-4301

Korea - Seoul - 82-2-554-7200

Malaysia - Kuala Lumpur - 60-3-6201-9857

Malaysia - Penang - 60-4-227-8870

Philippines - Manila - 63-2-634-9065

Singapore - 65-6334-8870

Taiwan - Hsin Chu - 886-3-5778-366

Taiwan - Kaohsiung - 886-7-213-7828

Taiwan - Taipei - 886-2-2508-8600

Thailand - Bangkok - 66-2-694-1351

2/21/13

Developing Applications

Microstick for 5V PIC24 K Series Devices only implements circuitry for low-voltage

ICSP™ programming. To enable low-voltage ICSP programming, it is important to

always configure the microcontroller to enable MCLR pin function, rather than RA5

general purpose, input pin function.

The following assembly language directive enables the MCLR

pin function in the

device Configuration bits:

; MCLR Pin Enable bit (RA5 input disabled; MCLR enabled)

config __FPOR, MCLRE_ON

In XC16, the same thing is accomplished with this code:

// MCLR Pin Enable bit (RA5 input disabled; MCLR enabled)

FPOR(MCLRE_ON)

The slide switch, labeled S3 on the PCB, is used to select which pair of PGECx/

PGEDx pins to use for In-Circuit Serial Programming™ (ICSP™). When moved

towards the PDIP socket, the Microstick is set for using PGEC3/PGED3. When

moved towards the USB connector, the Microstick is configured for PGEC1/

PGED1.

To allow for debugging to work in MPLAB, the device’s Configuration bits must be

set up to indicate which PGECx/PGEDx pins are actually being used in the circuit.

For example, in assembly language, you may need directives such as this:

.include "p24Fxxxx.inc"

; ICD Pin Placement Select (EMUC/EMUD share PGC3/PGD3)

config __FICD, ICS_PGx3

In XC16, the same thing can be accomplished with this code:

#include <p24Fxxxx.h>

// ICD Pin Placement Select (EMUC/EMUD share PGC3/PGD3)

_FICD(ICS_PGx3)

An XC16 firmware source code example for blinking the Microstick’s LED is

provided on the Microchip web site (see http://www.microchip.com/microstick).

Warning: Always program the microcontroller with MCLR

pin functionality

enabled so that the Microstick for 5V PIC24 K Series Devices can

be used to program/debug the chip in the future.

If the microcontroller is programmed with MCLR

pin function

disabled (RA5 input is enabled), the Microstick will no longer pro-

gram or debug firmware on the microcontroller because Microstick

does not have circuitry to use high-voltage ICSP entry. REAL

ICE™, MPLAB ICD 3 and PICkit™ 3 are examples of high-voltage

ICSP tools that can be used to recover the part.

Hardware Design

The Microstick for 5V PIC24 K Series Devices is USB bus powered. The device is

powered directly from the 5V USB bus. Turning power on/off to the target applica-

tion is controlled by the MPLAB IDE via the FPF2102 load switch. The FPF2102

load switch automatically shuts down power to the target if the current exceeds a

trip point of 200 mA to 400 mA. This may help protect the host PC USB port from

accidental shorting of power supply pins in the target application circuit.

The Microstick may be plugged into a prototyping board to develop external appli-

cation circuitry with the PIC

MCU. On the bottom side of the board, three rows of

pins are provided, labeled P1, P2 and P3. Normally, the Skinny PDIP (SPDIP) lay-

out (300 mils) should be used by populating rows, P1 and P2. Optionally, rows, P1

and P3, may be populated instead to provide a wide PDIP layout (600 mils). The

unpopulated, single in-line pin header for soldering into P3 is available separately

as Digi-Key Part Number ED7464-ND.

Introducing the Microstick for 5V PIC24 K Series Devices

Application Hardware

DS50002142A

VDD

PGED_MASTER

PGEC_MASTER

MCLR

PGED1

PGEC1

U1RX

GND

PGED3

MCLR

PGEC_MASTER

PGED_MASTER

PGEC1

PGEC3

PGED1

PGED3

GND

RA6

U1TX

PGEC3

U1RX

U1TX

LED Jumper

Red

R41

470R

C17

0.1 μF

C19

22 pF

(32.768 kHz)

C21

22 pF

R39

4.7k

C20

0.1 μF

R40

C18

0.1 μF

GND

TP1

TP2

C14

10 μF

R42

PIC24F16KM202

P1-P3 P4-P4

DM240013-2

Mfr. #:

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Description:

PIC24F K-SERIES 5V MICROSTICK

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DM240013-2