Freescale Semiconductor FRDM-KL05Z Manuel utilisateur

Freescale Semiconductor, Inc. FRDMKL25ZUM

FRDM-KL05Z User's Manual

2013-01-29

Rev. 1.0

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 2 of 13

Table of Contents

1Overview.....................................................................................................................................................3

2Reference Documents ............................................................................................................................3

3Getting Started..........................................................................................................................................3

4FRDM-KL05Z Hardware Overview ....................................................................................................4

5FRDM-KL05Z Hardware Description................................................................................................5

5.1 Power Supply........................................................................................................................................................................5

5.2 Serial and Debug Adapter (OpenSDA) .......................................................................................................................7

5.2.1 Debug Interface...................................................................................................................................................................................7

5.2.2 Virtual Serial Port............................................................................................................................................................................... 8

5.3 KL05Z Microcontroller.....................................................................................................................................................8

5.3.1 Clock Source .........................................................................................................................................................................................9

5.3.2 Serial Port ..............................................................................................................................................................................................9

5.3.3 Reset.........................................................................................................................................................................................................9

5.3.4 Debug.......................................................................................................................................................................................................9

5.4 Capacitive Touch Slider.................................................................................................................................................10

5.5 3-axis Accelerometer......................................................................................................................................................10

5.6 RGB LED...............................................................................................................................................................................10

5.7 Input/Output Connectors.............................................................................................................................................11

5.8 Arduino Compatibility ...................................................................................................................................................12

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 3 of 13

1Overview

The Freescale Freedom development platform is a set of software and hardware tools for evaluation

and development. It is ideal for rapid prototyping of microcontroller-based applications. The Freescale

Freedom KL05Z hardware, FRDM-KL05Z, is a simple, yet sophisticated design featuring a Kinetis L series

microcontroller, the industry’s first microcontroller built on the ARM® Cortex™-M0+ core.

FRDM-KL05Z can be used to evaluate the KL04 and KL05 Kinetis L series devices. It features a

MKL05Z32VFM4, a KL0 family device boasting a max operating frequency of 48MHz, 32KB of flash, and

a multitude of analog and digital peripherals. The FRDM-KL05Z hardware is form-factor compatible

with the Arduino™ R3 pin layout, providing a broad range of expansion board options. The on-board

interfaces include an RGB LED, a 3-axis digital accelerometer, and a capacitive touch slider.

The FRDM-KL05Z also features the Freescale open standard embedded serial and debug adapter

known as OpenSDA. This circuit offers several options for serial communications, flash programming

and run-control debugging.

2Reference Documents

The table below provides a list of reference documents for the FRDM-KL05Z hardware. All of these

documents are available online at www.freescale.com/FRDM-KL05Z.

Table 1. FRDM-KL05Z Reference Documents

Filename

Description

FRDM-KL05Z Quick Start Package

Quick Start Guide and supporting files for getting started with

the FRDM-KL05Z.

FRDM-KL05Z User’s Manual

This document—overview and detailed information for the

FRDM-KL05Z hardware.

FRDM-KL05Z Pinouts

Spreadsheet of pin connections for all MCU pins. Includes

pinout for the I/O headers, Arduino R3 compatibility chart,

and OpenSDA MCU pinout.

FRDM-KL05Z Schematics

PDF schematics for the FRDM-KL05Z hardware

FRDM-KL05Z Design Package

Zip file containing all design source files for the FRDM-KL05Z

hardware

OpenSDA User’s Guide

Overview and instructions for use of the OpenSDA embedded

debug circuit

3Getting Started

Refer to the FRDM-KL05Z Quick Start Package for step-by-step instructions for getting started with the

FRDM-KL05Z. See the Jump Start Your Design section onwww.freescale.com/FRDM-KL05Z for the

Quick Start Package and software lab guides.

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 4 of 13

4FRDM-KL05Z Hardware Overview

The FRDM-KL05Z includes:

MKL05Z32VFM4 in a 32 QFN package

Capacitive touch slider

MMA8451Q accelerometer

Tri-color (RGB) LED

Flexible power supply options –USB, coin cell battery, external source

Battery-ready, power-measurement access points

Easy access to MCU I/O via Arduino ™ R3 compatible I/O connectors

Programmable OpenSDA debug interface with multiple applications available including:

-Mass storage device flash programming interface

-P&E Debug interface, which provides run-control debugging and compatibility with IDE tools

-CMSIS-DAP interface (new ARM standard for embedded debug interface)

-Data logging application

Figure 1 shows a block diagram of the FRDM-KL05Z design. The primary components and their

placement on the hardware assembly are pointed out in Figure 2.

Kinetis L-Series

KL05Z32VFM4

32 QFN

USB

D+/D-

RESET

I/O Header

TSI

10-pin

Debug

Mini-B

USB Kinetis K-Series

K20DX128VFM5

8 MHz

I/O Header

Touch Pad - Slider

SPI,GPIO àSWD

32.768 Khz

UART

PWM x3

3.3V LDO

Vin

I/O

3.3V

I/O

I2C, GPIO

Inertial

Sensor

10-pin

Debug

CR2032

Indicates optional items that will not be populated by default

OpenSDA

Figure 1. FRDM-KL05Z Block Diagram

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 5 of 13

Figure 2. FRDM-KL05Z Feature Call-outs

5FRDM-KL05Z Hardware Description

5.1 Power Supply

There are multiple power supply options on the FRDM-KL05Z. It can be powered from the USB

connector, the VIN pin on the I/O header, an on-board coin cell battery, or an off-board 1.71-3.6V

supply from the 3.3V pin on the I/O header. The USB and VIN supplies are regulated on-board using a

3.3V linear regulator to produce the main power supply. The other two sources are not regulated on-

board. Table 2 provides the operational details and requirements for the power supplies.

Table 2. Power Supply Requirements

Supply Source

Valid Range

OpenSDA

Operational?

Regulated on-

board?

OpenSDA USB (J2)

Yes

VIN Pin

4.3-9V

Yes

3.3V Pin

1.71-3.6V

Coin Cell Battery

1.71-3.6V

Note that the OpenSDA circuit is only operational when a USB cable is connected and supplying power

to J2. However, protection circuitry is in place to allow multiple sources to be powered at once.

Figure 3 shows the schematic drawing for the power supply inputs and the on-board voltage regulator.

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 6 of 13

Figure 3. Power Supply Schematic

Table 3. FRDM-KL05Z Power Supplies

Power Supply Name

Description

P5-9V_VIN

Power supplied from the VIN pin of the I/O headers (J9 pin 8).

P5V_SDA

Power supplied from the OpenSDA USB connector (J2). A Schottky

diode provides back drive protection.

P3V3_VREG

Regulated 3.3V supply. Sources power to the P3V3 supply rail

through a back drive protection Schottky diode. 1

P3V3_BATT

Coin cell battery supply voltage. Sources power to the P3V3 supply

rail through a back drive protection Schottky diode.

P3V3

Main supply rail for the FRDM-KL05Z assembly. May be sourced from

P3V3_VREG, P3V3_BATT, or directly from the I/O headers (J9 pin 2)

P3V3_MCU

KL05Z MCU supply. Header J4 provides a convenient means for

energy consumption measurements. 2

P3V3_USBSER

OpenSDA circuit supply. Header J5 provides a convenient means for

energy consumption measurements. 2

P5V_USB

Nominal 5V supplied to the I/O headers (J9 pin 5). Sourced from

P5V_SDA supply through a back drive protection Schottky diode.

NOTES:

1) By default the linear regulator, U6, is a 3.3V output regulator. However, this is a

common footprint that would allow the user to modify the assembly to utilize an

alternative device such as a 1.8V or 2.5V regulator. The KL05Z microcontroller has an

operating range of 1.71V to 3.6V.

2) J4 and J5 are not populated by default. The two pins of these headers are shorted

together by a 0ohm resistor on the top layer of the PCB. To measure the energy

consumption of either the KL05Z or the OpenSDA MCU, the resistor between these pins

must first be removed. A current probe or a shunt resistor and volt meter can then be

applied to measure the energy consumption on these rails.

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 7 of 13

5.2 Serial and Debug Adapter (OpenSDA)

OpenSDA is an open-standard serial and debug adapter. It bridges serial and debug communications

between a USB host and an embedded target processor as shown in Figure 4. The hardware circuit is

based on a Freescale Kinetis K20 family microcontroller (MCU) with 128 KB of embedded flash and an

integrated USB controller. OpenSDA features a mass storage device (MSD) bootloader, which provides

a quick and easy mechanism for loading different OpenSDA Applications such as flash programmers,

run-control debug interfaces, serial-to-USB converters, and more. Refer to the OpenSDA User’s Guide

for more details.

Figure 4. OpenSDA High-Level Block Diagram

The OpenSDA circuit includes a status LED (D1) and a pushbutton (SW1). The pushbutton asserts the

Reset signal to the KL05Z target MCU. It can also be used to place the OpenSDA circuit into Bootloader

mode. SPI and GPIO signals provide an interface to the SWD debug port of the KL05Z. Additionally,

signal connections are available to implement a UART serial channel. The OpenSDA circuit receives

power when the USB connector, J2, is plugged into a USB host.

5.2.1 Debug Interface

Signals with SPI and GPIO capability are used to connect directly to the SWD of the KL05Z. These

signals are also brought out to a standard 10-pin (0.05”) Cortex Debug connector (J1). It is possible to

isolate the KL05Z MCU from the OpenSDA circuit and use J1 to connect to an off-board MCU. To

accomplish this, cut the trace on the bottom side of the PCB that connects J6 pin 1 to J6 pin 2. This will

disconnect the SWD_CLK pin to the KL05Z so that it will not interfere with the communications to an

off-board MCU connected to J1.

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 8 of 13

Figure 5. SWD Debug Connector

Note that J1 is not-populated by default. A Samtec FTSH-105-02-F-D or compatible connector can be

added to the J1 through-hole connector. A mating cable, such as a Samtec FFSD IDC cable, can then be

used to connect from the OpenSDA of the FRDM-KL05Z to an off-board SWD connector.

5.2.2 Virtual Serial Port

A serial port connection is available between the OpenSDA MCU and the KL05Z through pins PTB1 and

PTB2 . Several of the default OpenSDA Applications provided by Freescale, including the MSD Flash

Programmer and the P&E Debug Application, provide a USB Communications Device Class (CDC)

interface that bridges serial communications between the USB host and this serial interface on the

KL05Z.

5.3 KL05Z Microcontroller

The target microcontroller of the FRDM-KL05Z is the MKL05Z32VFM4, a Kinetis L series device in a 32

QFN package. The KL05Z MCU features include:

32-bit ARM Cortex-M0+ core

-up to 48 MHz operation

-Single-cycle fast I/O access port

Memories

-32 KB flash

-4KB SRAM

System integration

-Power management and mode controllers

-Low-leakage wakeup unit

-Bit manipulation engine for read-modify-write peripheral operations

-Direct memory access (DMA) controller

-Computer operating properly (COP) Watchdog timer

Clocks

-Clock generation module with FLL for system and CPU clock generation

-4 MHz and 32 kHz internal reference clock

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 9 of 13

-System oscillator supporting external crystal or resonator

-Low-power 1kHz RC oscillator for RTC and COP watchdog

Analog peripherals

-12-bit SAR ADC w/ DMA support

-12-bit DAC w/ DMA support

-High speed comparator

Communication peripherals

-one 8-bit Serial Peripheral Interfaces (SPI)

-one I2C modules

-One low-power UART

Timers

-One 6-channel Timer/PWM module

-one 2-channel Timer/PWM modules

-2-channel Periodic Interrupt Timer (PIT)

-Real time clock (RTC)

-Low-power Timer (LPT)

-System tick timer

Human-Machine Interfaces (HMI)

-General purpose input/output controller

-Capacitive touch sense input interface hardware module

5.3.1 Clock Source

The Kinetis KL0 microcontrollers feature an on-chip oscillator compatible with three ranges of input

crystal or resonator frequencies: 32-40 kHz (low freq. mode), 3-8 MHz (high freq. mode, low range) and

8-32 MHz (high freq. mode, high range). The KL05Z32on the FRDM-KL05Z is clocked from a 32.768 kHz

crystal.

5.3.2 Serial Port

The primary serial port interface signals are PTB1 and PTB2. These signals are connected to both the

OpenSDA and toI/O connector J8.

5.3.3 Reset

The PTA20/RESET signal on the KL05Z32 is connected to pushbutton, SW1, and to the OpenSDA circuit.

The reset button can be used to force an external reset event in the target MCU. The reset button can

also be used to force the OpenSDA circuit into bootloader mode. Please refer to section 5.2, Serial and

Debug Adapter (OpenSDA), for more details.

5.3.4 Debug

The sole debug interface on all Kinetis L Series devices is a Serial Wire Debug (SWD) port. The primary

controller of this interface on the FRDM-KL05Z is the onboard OpenSDA circuit (see section 5.2).

However, an unpopulated 10-pin (0.05”) Cortex Debug connector, J1, provides access to the SWD

signals. The Samtec FTSH-105-02-F-D or compatible connectors can be added to the J1 through-hole

debug connector to allow for an external debug cable to be connected.

FRDMKL25ZUM FRDM-KL05Z User's Manual Page 10 of 13

5.4 Capacitive Touch Slider

Two Touch Sense Input (TSI) signals, TSI0_CH8and TSI0_CH9, are connected to capacitive electrodes

configured as a touch slider. Freescale’s Touch Sense Software (TSS) provides a software library for

implementing the capacitive touch slider.

5.5 3-axis Accelerometer

A Freescale MMA8451Q low-power, three-axis accelerometer is interfaced through an I2C bus and two

GPIO signals as shown in Table 4 below. By default, the I2C address is 0x1D (SA0 pulled high).

Table 4. Accelerometer Signal Connections

MMA8451Q

KL05Z32

SCL

PTB3

SDA

PTB4

INT1

INT2

PTA10

Figure 6. MMA8451Q Schematic Diagram

5.6 RGB LED

Three PWM-capable signals are connected to a red, green, blue LED, D4. The signal connections are

shown in Table 5 below.

Table 5. RGB LED Signal Connections

RGB LED

KL05Z32

Red Cathode

PTB8

Green Cathode

PTB9

Blue Cathode

PTB10

Table des matières

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