Bluegiga DKBLE Bedienungsanleitung

DKBLE

USER GUIDE

Monday, 19 May 2014

Version 1.0

Bluegiga Technologies Oy

Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual.

Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications

detailed here at any time without notice and does not make any commitment to update the information

contained here. Bluegiga’s products are not authorized for use as critical components in life support devices

or systems.

The WRAP is a registered trademark of Bluegiga Technologies

The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies.

All other trademarks listed herein are owned by their respective owners.

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VERSION HISTORY

Version

Comment

1.0

First published version

Bluegiga Technologies Oy

TABLE OF CONTENTS

1Design Overview ...........................................................................................................................................5

1.1 PIO Connections in the Carriers...........................................................................................................7

1.2 Important Notes about the Differences between the Module Carriers .................................................7

1.2.1 Why the External Flash Chip Doesn’t Work With BLE121LR Carrier?.............................................9

1.2.2 Minimizing the Current Consumption ...............................................................................................9

1.3 Sensors, display and USB to UART converter.....................................................................................9

2Getting Started With DKBLE ...................................................................................................................... 10

2.1 Using the On-Board Debugger to Program the Carriers ................................................................... 10

2.2 Using the On-Board Debugger to Program External BLE Devices ................................................... 11

2.3 Using the Analog Comparator of BLExxx modules ........................................................................... 11

3Measuring Current Consumption ............................................................................................................... 12

4Schematics and Assembly Drawing........................................................................................................... 14

5WEEE Compliance..................................................................................................................................... 20

6Contact Information.................................................................................................................................... 20

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Page 5 of 20

1 Design Overview

BLE Development Kit, DKBLE, is targeted for engineers evaluating Bluetooth Smart modules BLE112,

BLE113 and BLE121LR. DKBLE is platform containing various switchable peripherals for creating and testing

several different applications utilizing Bluegiga Bluetooth Smart modules. The modules are assembled on a

carriers boards and DKBLE contains a header type of interface for plugging in the module carriers. Thus each

module can be tested and compared with each other on the same platform. DKBLE contains:

On-Board debugger

Switchable powering either from a coin cell battery or USB

UART interface through USB to UART converter

USB interface

programming interface for upgrading the firmware and parameters

Display connected to SPI

Accelerometer connected to SPI

Altimeter connected to I2C

Potentiometer for ADC input

Push buttons for 3 PIOs and reset

All the signals available at test points

Current measurement points for measuring peak currents of the module, DC current of the

module and DC current of the whole board.

The block diagram of DKBLE is shown in the Figure 1. Please, refer to the latest data sheets for information

about Bluegiga’s Bluetooth 4.0 single mode modules.

BLE Module

Interface

LDO

DC/DC

USB

Battery

Current test point

Display Accelerometer

Rpot

USB to UART

Converter

OFF

Buttons

Altimeter

OFF

DEBUGGER

MOD

EXT

Figure 1: Block diagram of DKBLE

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Page 6 of 20

To measure the DC current drawn

from the battery, connect current

meter here.

To measure the DC current drawn

from the USB, connect current

meter here.

To measure the DC current drawn

by the module alone, connect

current meter here.

To measure the peak current drawn

by the module alone, connect

oscilloscope here.

Interface for the module carrier boards.

Plug the carrier board to this connector.

Signal test points. All the signals

and interfaces of this board

are exposed here. The silk screen

describes the functions of this

board. To see which module IO

is connected to particular function,

see the silk screen of the module

carrier.

Output of the on-board cc-debugger.

To program an external BLExxx device,

connect the debug interface of the

device here.

To program the module carrier, switch to

”MODULE”

To program an external BLExxx device,

switch to ”OUTPUT”

Select power from the battery or

from the USB.

UART, USB and CC-Debugger interfaces.

The board can be powered from any of

these USB lines.

Potentiometer to test the internal

ADC of BLExxx modules.

Switches to connect and enable /

disconnect and disable the onboard

peripherals.

Reset the module carrier.

Module peak current measurement

on/off. To save in current consumption

turn off when not used.

Push buttons to the IO’s of

the module

Figure 2: DKBLE interfaces

Physical Dimensions of BLE121LR

14.7 mm

13.0 mm

4.8 mm

6.8 mm

8.4 mm

13.7 mm

3.9 mm

1.8 mm 1.8 mm

1.9 mm

Figure 3: BLE121LR module carrier

Bluegiga Technologies Oy

Page 7 of 20

1.1 PIO Connections in the Carriers

FUNCTION

BLE112

BLE113

BLE121LR

UART CTS

P0_2

UART RTS

P0_3

UART TX

P0_4

UART RX

P0_5

SPI CLK

P1_3

SPI MISO

P1_4

SPI MOSI

P1_5

DISPLAY CS

P1_6

FLASH CS

P0_7

(pulled down in the

carrier)

ACCELEROMETER CS

P1_2

DISPLAY RS / FLASH SUPPLY

P1_1

P0_7

DCDC CNTRL

P1_7

DCDC_CNTRL (*

LED / USB PU

P1_0

POTENTIOMETER

P0_6

BUTTON1

P0_0

BUTTON2

P0_1

BUTTON3

P2_0

*) Connect using a shorting link in the carrier

Table 1: PIO connections in the carriers

1.2 Important Notes about the Differences between the Module Carriers

In BLE121LR the PIOs P1_0 and P1_1 are reserved for the internal front end control of the module. Also

P1_7 is reserved for this purpose and in case of BLE121LR it can only be used as an output controlling the

external DCDC. Thus in BLE121LR P1_7 is named as DCDC CNTRL.

The important differences between the carriers are shown in the Figure 4 (BLE112 and BLE113 carriers) and

Figure 5 (BLE121LR carrier).

Bluegiga Technologies Oy

Page 8 of 20

100k

P1_1

100k

2V…3V3

P1_0

1.5k

USB-

200R

R32

2V…3V3

DISPLAY

FLASH

VDD

BLE121LR CARRIER

100k

SPI MISO P1_4

P0_7

Figure 4: Connections in BLE112 and BLE113 Carriers

100k

P0_7

100k

2V…3V3

Not Connected

1.5k

USB-

200R

R32

2V…3V3

DISPLAY

FLASH

VDD

Not connected

to BLE121LR

BLE121LR CARRIER

100k

SPI MISO P1_4

Figure 5: Connections in the BLE121LR Carrier

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Page 9 of 20

1.2.1 Why the External Flash Chip Doesn’t Work With BLE121LR Carrier?

The external flash chip is powered with one of the IO’s of the module. In BLE121LR Carrier the Flash supply is

connected to an IO with 4 mA current driving capability where as in BLE112 and BLE113 Carrier it is

connected to an IO with 20 mA current driving capability. Thus BLE121LR carrier is not able to power the flash

and using the flash with BLE121LR carrier is not possible in DKBLE.

1.2.2 Minimizing the Current Consumption

In all Carriers pin P1_4 is externally pulled down by the pull-down resistor in DKBLE. The purpose of this

resistor is to avoid leakage when using the display. Note that any PIO’s configured as peripherals do not have

internal pull-down or pull-up capability and thus, when left floating, they will require external pull-down resistor.

For this reason port P1 can’t be configured to have internal pull-ups (the default setting

of the module) but the port P1 must be pulled low in the HW configuration file.

In BLE121LR carrier also pin P0_7 is externally pulled down by the pull-down resistor in DKBLE.

For these reasons both ports P1 and P2 must be pulled low in the HW configuration file.

The PIO used for the display RS (Register Select) signal has an external pull-down resistor in DKBLE (Note

that P1_0 and P1_1 require external pull-up or pull-down when configured as input).

For these reasons the PIO used for the RS signal must be driven low when the not

writing to the display.

1.3 Sensors, display and USB to UART converter

Device

Manufacturer

Manufacturer Part Number

USB to UART Converter

Prolific

PL2303HX rev.D

Display

Newhaven Display Intl

NHD-C0216CZ-FSW-FBW-3V3

Altimeter

Freescale

MPL3115A2

Accelerometer

Analog Devices

ADXL350BCEZ-RL

External Flash

Winbond

W25X20CLSNIG

Table 2: Sensors, display, external flash and USB to UART converter in DKBLE

Bluegiga Technologies Oy

Page 10 of 20

2 Getting Started With DKBLE

By default the modules delivered with the DKBLE have demonstration FW which prints the temperature to the

display and starts automatically advertising. Several example applications are provided with the SDK package

downloadable in the Bluegiga web pages.

To get started with the example applications navigate to

www.bluegiga.com →Products → Bluetooth 4.0 Modules

Select the module of your choice and then navigate to

Documentation and Software → Software Releases → Bluetooth Smart Software and SDK

Download and install the package. After successful installation the tools can be found from the start menu.

Figure 6: Bluegiga tools and examples in the Windows start menu

2.1 Using the On-Board Debugger to Program the Carriers

To program the module in the carrier, connect the debugger with USB to a PC as shown in the Figure 7.

Launch the BLE SW Update Tool. Browse to select the project file for the right module carrier, and then click

“update”. After successful programming, the background of the BLE SW Update Tool turns into green (Figure

8).

Physical Dimensions of BLE121LR

14.7mm

13.0mm

4.8mm

6.8mm

8.4mm

13.7mm

3.9mm

1.8mm 1.8mm

1.9mm

Figure 7: Using the on-board debugger to program the carrier

Switch power to

”USB” and the

debugger to

”module”

The debugger is ready

when the led is green. If

the led is red, press

“reset debugger”

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