NGX Technologies BlueBoard Base Manuel utilisateur

UM-BlueBoard Base

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BlueBoard Base

USER MANUAL

UM-BlueBoard Base 
 
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Contents 
Introduction .........................................................................................................................................3 
Features............................................................................................................................................3 
Hardware..........................................................................................................................................3 
•Power.....................................................................................................................................3 
•Connectors ............................................................................................................................3 
•Other Peripherals ..................................................................................................................3 
Software ...........................................................................................................................................4 
Getting started .....................................................................................................................................4 
Hardware..........................................................................................................................................4 
Software ...........................................................................................................................................4 
Setup ...........................................................................................................................................4 
Hardware..........................................................................................................................................4 
Software ...........................................................................................................................................5 
Validating BlueBoard Base ...................................................................................................................5 
Hardware Configurations.................................................................................................................5 
Modules and Jumpers Relationship.............................................................................................5 
LEDs and SPI0 ...............................................................................................................................6 
UART0 & UART1 ...........................................................................................................................6 
USB...............................................................................................................................................8 
VGA connector .............................................................................................................................9 
JTAG connector ............................................................................................................................9 
User Interface Switch...................................................................................................................9 
Buzzer...........................................................................................................................................9 
SD/MMC connector .....................................................................................................................9 
Audio jack.....................................................................................................................................9 
PS/2 keyboard ..............................................................................................................................9 
LCD display .................................................................................................................................10 
Programming BlueBoard Base ...........................................................................................................10 
Programming BlueBoard Base Through ISP ...................................................................................10 
Appendix ............................................................................................................................................11 
Functional Overview ......................................................................................................................11 
USB Virtual COM Port Installation For Windows XP ......................................................................12 
Sample Programs ...........................................................................................................................14 
Known Issues..................................................................................................................................14 
Legal ...........................................................................................................................................15 
Disclaimers .................................................................................................................................15 
Trademarks ................................................................................................................................15 
 
 
 
 
 
 
 

UM-BlueBoard Base

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Introduction

BlueBoard Base is modular approach to the ever evolving design of our flagship product

Blueboard-LPC2148. It is designed keeping in mind the requirements of a development engineer,

who could be working on different controllers but would prefer the same peripheral interface or a

company working on different products using different controller and would not prefer to invest

huge amount in individual boards or a hobby enthusiast who would be trying out different

controllers but would not be willing to invest in different boards for each controller. For all these,

the user can buy the required stamp module and work on this board.

Features

BlueBoard Base has various peripherals with configurable jumpers. Extension headers for all

microcontroller pins.

(1) Note: The functionality of the features mentioned for the BlueBoard Base in this document are

direcly dependent on the Stamp board(microcontroller) used. Ex: Using LPC2148 Stamp board all the

features mentioned here are available. But if LPC1114 Stamp Board is used some features like USB,

VGA, etc., are may not be available. This document is for the Blueboard Base + LPC2148 stamp.

Hardware

•Dimensions of 114 X 127 mm2

•Two layer PCB (FR-4 material)

•Power

◦Power supply: DC 6.5V with power LED

◦On-board linear regulators generate +3.3V/500mA and +5v/500mA from power supply ◦

USB connector ( as alternate power source)

•Connectors

◦Extension headers for all microcontroller pins

◦Two RS232 port connectors

◦VGA connector

◦PS/2 connector

◦JTAG connector

◦SD/MMC connector

◦USB B-type connector with Link-LED

◦All peripheral configurable via jumpers

•Other Peripherals

◦256Kb I2C based EEPROM

◦Audio power amplifier with audio jack

◦2 line X 16 character LCD with back light control

◦Configurable for manual and automatic program download(ISP) via serial port

◦8 controllable LEDs on SPI using 74HC595

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Software

•Firmware for USB bootloader

•Preloaded program to test the peripherals

Getting started

Before you start working with the board you need to have a few things available.

Requirement

The requirements are divided in two sections.

Hardware

•The required controller Stamp board

•Power adapter –rating 7.5 V, 1 AMP

•USB cable

•VGA cable

•DB-9 straight Full and Half modem serial cable

•A headphone / speaker to verify the DAC

•USB / parallel JTAG

Software

•Keil MDK-ARM / Rowley CrossWorks tool for cross compiling

•Flash Magic tool

•Serial Terminal program

Setup

Hardware

•Connect the DC power

•Connect the monitor to VGA connector

•Connect the headphones to audio connector

•Connect the serial port 0 to PC

•Connect USB to PC

•Insert the required stamp board on to the Base

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Software

•Start a terminal program like HyperTerminal in MS Windows / minicom in Linux (refer to

configuring HyperTerminal / minicom)

Validating BlueBoard Base

Once you have all these accessories connected to the BlueBoard Base you can run a simple

test to verify the proper working of all the peripherals. It is highly recommended that you test all

the peripherals as soon you receive the BlueBoard. The BlueBoard is shipped with the preloaded

firmware which can test all the peripherals.)

Hardware Configurations

The connectors on the board can be configured using jumpers. Refer to the table below.

Modules and Jumpers Relationship

Jumper

Related Module

Usage

UART0 &UART1

Connecting all pins enables both UART0 and UART1. Pins 1

and 3 enable UART and pins 5 and 7 enable UART0.

VREF voltage

Connecting this will set the VREF voltage to 3.3V.

Test LEDs

Connecting all pins enables test LED's. Pins 3 to 9 are

connected to SPI0 lines of LPC2148.

J10

ADC

This will enable the ADC interface

J11

JTAG

This will enable the debug mode on the microcontroller.

J12

Keyboard(PS/2)

This will enable the PS/2 peripheral.

J13

Keyboard(PS/2)

This will provide 5V supply to PS/2 connector.

J18

LCD

Connecting all pins enabled LCD. Pins 1 to 7 are data lines,

9 to 13 are control lines and pin 15 is 5V power pin.

J19

LCD Backlight

If pins 1 and 2 are connected the LCD back light will always

stay ON and if pins 2 and 3 are connected the back light can

be controlled by firmware.

J22

Power supply to board

Connecting this will provide 3.3V supply to board.

J25

I2C

By connecting all pins it enables I2C interface and its status

is displayed on LCD.

J26

Bootloader select

If pins 1 and 2 are connected,manual bootloader mode is

selected and if pins 2 and 3 are connected auto bootloader

mode is selected.UART0 to be used for this purpose.

J27

RTC

Connect a battery to use RTC.

Switch on the BlueBoard Base. The interfaces are activated in the following manner: USB,

VGA, Audio, Buzzer, LEDs, LCD, SD/MMC, I2C, UART, PS/2.

UM-BlueBoard Base

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LEDs and SPI0

Test setup: Connect jumpers to all pins of J9 to enable the LED's.

A few seconds after the Blueboard is turned ON or reset; the LEDs will turn ON in ascending

pattern and will turn OFF in descending order and this pattern will repeat three times. Please note

that all the LEDs should glow; this confirms the working of LEDs. Now, since the LEDs are connected

through a serial to parallel converter this test also confirms the working of SPI0 of the LPC.

UART0 & UART1

Test setup: Connect jumpers to all pins of J6. Open the hyper terminal as shown in the image below.

To test the UART you can use either a full modem or half modem cable.

Click on hyper terminal a “Connection Description” window opens. Enter a name under the

name tab e.g. BlueBoard and click OK.

A “Connect To” window opens where you have to select the COM port. In this example it is

COM1.Click OK.

A “COM1Properties” window appears. Set the values as shown below.Click OK.

UM-BlueBoard Base

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A “COM1 Properties” window appears. Set the values as shown below.

Click OK.

Next an empty “BlueBoard-Hyper Terminal” window opens as shown.

Now make sure that the BlueBoard is powered and the serial port is connected to the

respective port to be tested (UART0 or UART1). By pressing any key from keyboard the following

message will appear for the respective UART.

UM-BlueBoard Base

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For UART0:

UART0 can also be used for serial programming. If the selected bootloader mode is Manual

then Half modem cable should be used, else if it is in Auto mode use full modem cable. Note that

after programming in auto mode the serial cable should be disconnected.

For UART1:

USB

Before moving ahead with this section, refer to USB Virtual COM Port Installation for

Windows XP section in Appendix.

Test setup: Connect the USB cable to USB connector. The power LED (D14) and USB connect LED

(D10) turn ON. The USB enumeration can be checked in device manager. The BlueBoard enumerates

as a Virtual COM port. To test the Virtual COM port; we can test it as we tested the UART0/1 of

BlueBoard.

UM-BlueBoard Base

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VGA connector

Test setup: Connect the VGA connector on board (J17) to the computer monitor. A default image

will appear. This confirms the working of VGA interface. Please note that to test the VGA interface

the user has to power cycle the BlueBoard or reset it. The VGA is active only for few seconds.

JTAG connector

Test setup: To enable debugging on the board connect jumper to J11 and connect the JTAG to debug

port. We have successfully tested the BlueBoard with JTAG interface using a Wiggler Clone JTAG. To

test this feature you need to have the necessary software support on your PC.

User Interface Switch

Test setup: The Switch SW1 is connected to one of the external interrupt lines of LPC. To test this

interface simply press the switch and you should hear the beep sound on the buzzer. This confirms

that both the interrupt line and the buzzer module are working fine. Please ensure that you have

connected the buzzer jumper appropriately.

Buzzer

Test setup: Connect jumper to J23, when the board is turned on or RESET you will hear a beep after

few seconds. This is how the user can confirm the status of the Buzzer.

SD/MMC connector

Test setup: Insert a SD card in the SD card holder (J24), the status of the SD card will be displayed

on LCD upon power cycle or reset of the BlueBoard. If the SD card is inserted properly “SD card –

OK” is displayed on LCD else it displays “SD card- Not OK”. During manufacturing the board is tested

with Kingston’s 1GB SD card.

Note: The SD/MMC card being tested should be formatted with FAT file system (Not FAT32 or NTFS

format).

Audio jack

Test setup: Connect a headset to the audio jack connector. You should hear a ding sound being

played. The sound is heard only for few seconds after power ON or RESET.

PS/2 keyboard

Test setup: To enable PS/2 connect jumper to J15. Connect a PS/2 keyboard to this connector. Now

press any key on the keyboard. The user can see which key he/she has pressed on the LCD.

UM-BlueBoard Base

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LCD display

Test setup: To enable the LCD connect jumpers to all pins of J18. A default message “NGX

TECHNOLOGIES” will be displayed and later status of SD/MMC and I2C is displayed. The back light

of LCD can be controlled by connecting jumper to appropriate pins of J19. The contrast of LCD can

be varied using the POT.

RTC: A 2 - pin connector J27 is provided for RTC.Connect an external battery to use the to this

connector to work with RTC.

ADC: The ADC is connected to a potentiometer. To test the ADC turn the potentiometer, as the

position varies the output number of LEDs that are turned ON varies.

Programming BlueBoard Base

BlueBoard Base can be programmed through wiggler clone JTAG or through serial port using

‘Flash Magic’. ‘Flash Magic’ is a freeware windows utility used download the hex file format onto

the BlueBoard. Flash Magic can be downloaded from here http://www.flashmagictool.com/. If your

PC does not have a serial port; use a USB to serial converter to download the hex file using the Flash

Magic utility. For programming with JTAG your system should have a parallel port or you can use

the USB to JTAG from NGX Technologies and the supporting IDE which can communicate to the

processor core over JTAG interface. We have successfully tested BlueBoard with wiggler clone JTAG

and USB JTAG with CrossWorks IDE. A LINUX utility to download the hex file can be found here

http://www.pjrc.com/arm/lpc2k_pgm/.(1)

Programming BlueBoard Base Through ISP

The BlueBoard Base can be programmed through ISP in two modes:

1. Auto Mode 2. Manual Mode

1. Auto Mode:

To program in Auto mode you need a full serial cable. Set the jumper to pins 2 & 3 of J26 and

connect the full serial cable to UART0 (J5). When BlueBoard is powered ON black boxes will be

displayed on LCD. Open Flash Magic tool, select the appropriate COM port, set the Baud rate to less

than or equal to 38400 bps, select device as LPC2148, interface as 'None (ISP)' and oscillator

frequency as 12MHz. Specify the path of your HEX file and click START. The status is shown at the

bottom on the Flash Magic window.

In the 'Step 4 - Options' check 'Verify after programming' and 'Fill unused flash' options.

Checking the 'Set Code Read Prot' option will not allow you will program with JTAG. So keep it

unchecked unless required.

Note:

1. In Auto mode under the 'Options' tab select 'Advanced options'. In this under 'Hardware

Config' tab make sure the options 'Use DTR and RTS to control RTS and P0.14' and 'Keep RTS

asserted while COM port open' are checked. The values of T1 and T2 are set to 100ms and

200ms by default.

2. After programming the board in Auto mode you should disconnect the serial cable from J5.

This is a known issue.

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