Microchip Technology PIC32CM LS60 Manuale utente

PIC32CM LE00/LS00/LS60

PIC32CM LE00/LS00/LS60 Curiosity Pro User Guide

Preface

The Microchip® PIC32CM LE00, PIC32CM LS00, and PIC32CM LS60 Curiosity Pro evaluation kits are hardware

platforms for evaluating the PIC32CM LE00/LS00/LS60 microcontrollers (MCUs). Each evaluation kit is supported by

the MPLAB® X Integrated Development Environment (IDE) and MPLAB Harmony v3 featuring application examples.

The Curiosity Pro evaluation kits include an on-board embedded debugger to program or debug the target

microcontroller. This enables an easy start to a project, and provides application examples that can be used in

the design of a custom application.

The Curiosity Pro evaluation kits provide easy access to the features of the microcontroller, and are integrated

with Arduino Uno, mikroBUS™, and extension headers to interface with Xplained Pro extension boards for a rapid

prototyping and expanded functionality.

and its subsidiaries

User Guide DS70005443E-page 1

Table of Contents

Preface........................................................................................................................................................... 1

1. Introduction............................................................................................................................................. 3

1.1. Features....................................................................................................................................... 3

1.2. Overview of Available Kits............................................................................................................3

2. Getting Started........................................................................................................................................ 7

3. Curiosity Pro............................................................................................................................................8

3.1. Embedded Debugger................................................................................................................... 8

3.2. Curiosity Pro Embedded Current Measurement Circuitry (XAM)................................................. 9

4. Hardware User Guide............................................................................................................................11

4.1. Power Sources........................................................................................................................... 11

4.2. Headers and Connectors........................................................................................................... 12

4.3. Peripherals................................................................................................................................. 20

4.4. Embedded Debugger Implementation........................................................................................22

4.5. Embedded Current Measurement Circuitry (XAM) Configuration.............................................. 24

5. Product Identifier and Revision............................................................................................................. 25

6. Revision History.................................................................................................................................... 26

The Microchip Website.................................................................................................................................27

Product Change Notification Service............................................................................................................27

Customer Support........................................................................................................................................ 27

Microchip Devices Code Protection Feature................................................................................................ 27

Legal Notice................................................................................................................................................. 27

Trademarks.................................................................................................................................................. 28

Quality Management System....................................................................................................................... 28

Worldwide Sales and Service.......................................................................................................................29

PIC32CM LE00/LS00/LS60

and its subsidiaries

User Guide DS70005443E-page 2

1. Introduction

1.1 Features

The following are key features of the board:

• PIC32CM5164LE00100, PIC32CM5164LS00100, and PIC32CM5164LS60100 microcontrollers

• One mechanical reset button

• Two mechanical programmable buttons

• Two user LEDs (green and red)

• One Touch button

• One Potentiometer

• 32.768 kHz oscillator

• 12 MHz oscillator

• USB interface, Host or Device

• Three extension headers compatible with a wide range of Xplained Pro extension kits

• mikroBUS header connector

• Arduino Uno header connectors

• 10-pin Cortex® Debug header (SWD)

• 8-pin PICkit 4 Interface header (SWD)

• Embedded debugger (EDBG)

– Auto ID for board identification in MPLAB X IDE

– One status LED (yellow)

– One board power LED (green)

– Symbolic debug of complex data types, including scope information

– Programming and debugging, including power measurements

– Data Gateway Interface: SPI, I2C, four GPIOs

– Virtual COM port (CDC)

• Embedded current measurement circuitry (XAM) with MPLAB Data Visualizer support for data visualization

• USB powered

• Power Header for external power source

• Supported with application examples in MPLAB Harmony v3

1.2 Overview of Available Kits

The following are part numbers of the three evaluation kits:

• PIC32CM LE00 Curiosity Pro – EV80P12A

• PIC32CM LS00 Curiosity Pro – EV12U44A

• PIC32CM LS60 Curiosity Pro – EV76R77A

The evaluation kit offers a set of features that enables the user to start with the microcontroller peripherals

immediately and to obtain an understanding of how to integrate the device in their design.

PIC32CM LE00/LS00/LS60

Introduction

and its subsidiaries

User Guide DS70005443E-page 3

Figure 1-1. PIC32CM LE00/LS00/LS60 Curiosity Pro Evaluation Board Layout (Top View)

11 7

PIC32CM LE00/LS00/LS60

Introduction

and its subsidiaries

User Guide DS70005443E-page 4

Figure 1-2. PIC32CM LE00/LS00/LS60 Curiosity Pro Evaluation Board Layout (Bottom View)

PIC32CM LE00/LS00/LS60

Introduction

and its subsidiaries

User Guide DS70005443E-page 5

Table 1-1. PIC32CM LE00/LS00/LS60 Curiosity Pro Board Features and Location

Number Item Description

1 PIC32CM LE00/LS00/LS60

2 Reset button

3 EDBG USB power supply

4 USB interface, Host and device

5 Power Header for external power source

6 Touch button

7 Potentiometer

8 Programmable buttons

9 User LEDs (Green and Red)

10 mikroBUS header connector

11 Extension headers

12 Arduino Uno header connectors

13 10-pin Cortex Debug header (SWD)

14 8-pin PICkit™ 4 Interface header (SWD)

15 Embedded Current Measurement jumpers

16 Embedded Debugger (EDBG)

17 Embedded Current Measurement (XAM)

Table 1-2. PIC32CM LE00/LS00/LS60 Microchip Total System Solutions (TSS)

TSS Components Quantity (per board) Function

PIC32CM5164LE00100-I/PF

PIC32CM5164LS00100-I/PF

PIC32CM5164LS60100-I/PF-PROTO

1(1) Target MCU

DSC6083CE2A-032K768 1 External 32.768 kHz Oscillator

DSC6003JI2B-012.0000 1 External 12 MHz Oscillator

MIC5528-3.3YMT-T5 2 LDO for 3.3V DC Output

AT32UC3A4256J-C1UR 1 Embedded Debugger (EDBG) MCU

ATSAMD20E17A-AUT 1 Current Measurement (XAM) MCU

Note:

1. Only one target MCU per kit.

PIC32CM LE00/LS00/LS60

Introduction

and its subsidiaries

User Guide DS70005443E-page 6

2. Getting Started

Follow these steps to explore the Curiosity Pro platform:

1. Download MPLAB X IDE.

2. Launch MPLAB X IDE.

3. Connect the DEBUG USB port on the kit to the computer using a USB cable (Standard-A to Micro-B, or

Micro-AB).

Note: When the Curiosity Pro MCU kit is connected to the computer for the first time, the operating system will

install the software driver. The software driver supports both 32-bit and 64-bit versions of Microsoft® Windows®XP,

Windows Vista®, Windows 7, Windows 8, and Windows 10.

When the Curiosity Pro MCU board is powered, the power LED (green) will glow and MPLAB X IDE will auto-detect

the specific Curiosity Pro MCU and extension boards that are connected to it. MPLAB X IDE will present relevant

information, such as data sheets and kit documentation.

The PIC32CM LE00/LS00/LS60 devices can be programmed and debugged by the on-board embedded debugger

(EDBG), hence external programmer or debugger tool is not required.

Note: Users can connect external debugger tools using the Cortex-M Debugger or the PICkit™ 4 Interface headers.

PIC32CM LE00/LS00/LS60

Getting Started

and its subsidiaries

User Guide DS70005443E-page 7

3. Curiosity Pro

The Curiosity Pro is a user-friendly rapid prototyping platform. It is supported with MPLAB X IDE and MPLAB

Harmony v3 software development framework that comes with demonstration codes, middleware, PLIBs, and drivers.

The Curiosity Pro evaluation kits support a wide range of extension boards which are connected through a set of

standardized headers and connectors. Each extension board has an identification (ID) chip to uniquely identify which

boards are connected to the Curiosity Pro evaluation kit. When an extension board is connected, some relevant

information, such as board features, supported interfaces, serial number, links to documentation, and so on is read

and displayed on the MPLAB X IDE kit window.

3.1 Embedded Debugger

The Curiosity Pro contains Embedded Debugger (EDBG) for on-board debugging. The EDBG is a USB composite

device with the following interfaces:

• Debugger (SWD)

• Virtual COM port (CDC)

• Data gateway interface (DGI)

Together with MPLAB X IDE the EDBG debugger interface can program and debug the microcontroller. On

the PIC32CM LE00/LS00/LS60 Curiosity Pro, the SWD interface is connected between the EDBG and the

microcontroller.

The virtual COM Port is connected to a UART on the microcontroller and provides a straight forward way to

communicate with the target application through terminal software. It offers variable baud rate, parity, and stop bit

settings. The settings on the microcontroller must match the settings given in the terminal software.

Note: The virtual COM port in the EDBG requires the terminal software to set the data terminal ready (DTR) signal

to enable the UART pins connected to the microcontroller. If the DTR signal is not enabled, the UART pins on the

EDBG is kept in High-Z (tristate), rendering the COM port unusable. The DTR signal is set automatically by some

terminal software, but it must be manually enabled in the terminal.

The DGI consists of several physical interfaces for communication with the Host computer. Communication over

the interfaces is bidirectional. It can be used to send events and values from the microcontroller or as a generic

printf-style data channel. Traffic over the interfaces can be time stamped on the EDBG for accurate tracing of events.

Timestamping imposes an overhead that reduces maximum throughput. The MPLAB Data Visualizer Extension,

installed with MPLAB X IDE, is used to send and receive data through the DGI.

The EDBG controls two LEDs on the PIC32CM LE00/LS00/LS60 Curiosity Pro: a power LED and a status LED. The

following table provides how the LEDs are controlled in different operation modes.

Table 3-1. EDBG LED Control

Operation Mode Power LED Status LED

Normal Operation Power LED is lit when power is applied

to the board.

Activity indicator, LED flashes when any

communication happens to the EDBG.

Bootloader Mode (idle) The power LED and the status LED blink simultaneously.

Bootloader Mode

(firmware upgrade)

The power LED and the status LED blink in an alternating pattern.

For additional information on EDBG, refer to the Microchip EDBG User Guide.

PIC32CM LE00/LS00/LS60

Curiosity Pro

and its subsidiaries

User Guide DS70005443E-page 8

3.2 Curiosity Pro Embedded Current Measurement Circuitry (XAM)

3.2.1 Overview

The Curiosity Pro Embedded Current Measurement Circuitry (XAM) extends the embedded debugger with high

dynamic range current measurement, and this enables the power profiling of the target system.

Figure 3-1. Curiosity Pro Embedded Current Measurement Circuitry (XAM)

The following are key features of the XAM:

• Calibration circuitry

• Voltage reference

• Analog front end

– Shunt resistors with a range selection switch

– Preamplifier

– Two active filters with gain

• Control MCU

– Analog-to-Digital Converter (ADC)

– Signal processing

– Control or communication interface to the EDBG

The current measurement front end is a high-side shunt measurement with a preamplifier, and a second active filter

stage with gain. The wide dynamic range is achieved by four measurement ranges which are defined by two shunts,

and the two parallel second stage active filters with gain.

3.2.2 EDBG Interface

The Curiosity Pro Embedded Current Measurement Circuitry (XAM) is connected to the EDBG with the following

interfaces:

• I2C: Used to control and configure the XAM.

• SPI: Current measurement data is streamed to the EDBG through this interface. This is a one-way data transfer

channel from the XAM to the EDBG.

• SWD: The MCU in the XAM is programmed through SWD from the EDBG.

• GPIO: At least one GPIO that is connected to the EDBG from the target MCU is also connected to the current

measurement unit to enable the user to sync current measurements with their application.

PIC32CM LE00/LS00/LS60

Curiosity Pro

and its subsidiaries

User Guide DS70005443E-page 9

• Clock sync: Synchronization signal to synchronize ADC measurements with EDBG.

3.2.3 Measurement Ranges and Accuracy

The XAM has the following four measurement ranges, which are defined by two shunt resistors and two gain stages

as provided in the table below:

Table 3-2. XAM Measurement Ranges and Accuracy

Measurement

Range Hardware Resolution Accuracy Comments

Range 1 Low-current shunt and high-

gain stage

20 nA 1 LSB ±1% Below 1 µA the error will increase.

Typical error for 300 nA is 1 LSB

±10%

Range 2 Low-current shunt and low-

gain stage

150 nA 1 LSB ±1% -

Range 3 High-current shunt and high-

gain stage

10 μA 1 LSB ±1% -

Range 4 High current shunt and low

gain stage

100 μA 1 LSB ±1% Above 100 mA the error will

increase to 1 LSB ±5% at 400 mA.

Maximum current is 400 mA

The ranges are switched automatically by the XAM to achieve best measurement results and the current active range

is visualized in the MPLAB Data Visualizer front end tool. The maximum voltage drops over the shunt resistor is 100

mV, and the XAM will switch the range automatically before this limit is reached.

PIC32CM LE00/LS00/LS60

Curiosity Pro

and its subsidiaries

User Guide DS70005443E-page 10

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