NXP Semiconductors UM10741 User manual

UM10741

Fm+ development kit OM13320

Rev. 1 — 1 April 2014 User manual

Document information

Info Content

Keywords I2C-bus, Fm+, development tool, PCA9672, PCA9955

Abstract User manual for the Fm+ development board (OM13260) kit (OM13320).

User manual Rev. 1 — 1 April 2014 2 of 61

Contact information

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: [email protected]

NXP Semiconductors UM10741

Fm+ development kit OM13320

Revision history

Rev Date Description

1.0 20140401 User manual; initial release

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NXP Semiconductors UM10741

Fm+ development kit OM13320

1. Introduction

The Fm+ Development Kit (OM13320) is intended for several different tasks: from a

hands-on introduction, understanding, and use of the I2C-bus (Inter-Integrated Circuit

bus), to I2C device evaluation, and as a simple product demonstration platform (for trade

shows and sales pitches).

The kit has a core Printed-Circuit Board (PCB) assembly, and three add-on PCBs. Other

PCBs are available for advanced use or to support newly-released I2C-bus components

as they are introduced to the market.

The Fm+ Development Kit (OM13320) is supported by a Graphics User Interface (GUI)

software program that runs on a Personal Computer (PC) under the Microsoft Windows 7

Operation System. In some uses the GUI is not required, and the Fm+ Development Kit

(OM13320) can be run as a standalone demonstration, requiring only an external power

adapter (not included).

2. Key features

I2C-bus masters

Self-contained PCB with two independent I2C buses

Bus 1: On-card I2C MCU master (NXP LPC1343)

Bus 2: NXP LPC Xpresso MCU module (not included), and NXP PCA9665 bus

controller

USB interface to on-card MCU (for connection to a PC running the GUI software)

I2C-bus slaves

General Purpose Input/Output (GPIO): PCA9672 (one each on Bus1 and Bus2)

LED driver, with 16 constant current outputs: PCA9955 (with four RGB and four White

LEDs on Bus1)

Accessory sockets

Connectors for up to four daughter cards, each providing power, Bus1 and Bus2 I2C

signals

Connector for the Bus Buffer Board OM13398 (supplied) containing two PCA9617A bus

buffers

Connector for a third-party I2C-bus logger or I2C-bus controller (Beagle and Aardvark,

from Total Phase)

I2C buses

I2C-bus voltage: jumper select 5 V (external) or 3.3 V (on-card 3.3 V regulator)

I2C-bus pull-up resistors: jumper select of ‘high’, ‘med’ or ‘low’ loading

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Fm+ development kit OM13320

Other features

SPI ports: One for on-card MCU, two more for LPC Xpresso

Serial Com Port: EIA232 with voltage level shifter and connection to the LPC Xpresso

LED blinker: NXP PCA9901 one-wire with on-card LED

INT (Interrupt) and RST (Reset) Bus signal monitor LEDs (buffered)

Logic probe: Utility LEDs (buffered) to monitor signals by user jumper wire connection

External DC input (6 V DC maximum)

Prototype area: Uncommitted 8 ×8 100 mil pitch tie points for end user component

attachment

Test points and ground: for probe attachment to major signals

Connection of both I2C buses together (supplied 2-wire jumper)

3. Fm+ development kit quick tour

3.1 Kit contents

Before using the kit for the first time, please familiarize yourself with the various

components listed in Table 1. See Figure 1.

Remark: Each PCB assembly is shipped in an anti-static bag. After the first use, these

may be discarded to simplify future storage.

a. Top layer b. Bottom layer

Fig 1. Fm+ development kit

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Fm+ development kit OM13320

3.1.1 Box contents

The Fm+ Development Kit (OM13320) contains four PCB assemblies, cables, and loose

hardware. These should be retained in the box for future access. Depending upon the

desired use, some of the PCB assemblies may be attached to each other, either by plug

connection or by ‘stacking’ the GPIO PCB assemblies above the Fm+ Development

Board (OM13260), using the supplied ribbon cables and hardware.

Table 1. Fm+ development kit contents

Components

Fm+ development board (OM13260)

GPIO target board (OM13303)

PCA9617A bus buffer demo board (OM13398)

Bridge board (OM13399)

Cable, USB Type A to Type B

Ribbon cable, 10 position (bag of two)

Jumper wires with female terminals (bag of ten)

Shorting jumpers (bag of twenty)

Hardware (bag of M3 screws and standoffs)

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Fm+ development kit OM13320

3.2 Supplied PCB assemblies

There are four PCB assemblies in the kit. Each has a specific function and not all of them

are used at the same time.

3.2.1 Fm+ Development Board (OM13260)

The large PCB, Figure 2, contains two separate I2C-bus structures, together with

supporting circuitry. Each bus has a bus master, one or more bus slaves, and user options

to change the bus voltage and bus pull-up resistors. Adjusting these changes the

operation of the buses to suit various goals. In addition, the two buses may be linked

together to operate a one I2C-bus structure. This can be done with a two-wire jumper

(supplied) or the Bus Buffer Board OM133998 (supplied). See figure 3.5. Four identical

ports provide access for add-on boards that contain additional I2C-bus devices.

Fig 2. OM13260 Fm+ development board PCB assembly

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Fm+ development kit OM13320

3.2.2 GPIO target board (OM13303)

Outputs from the GPIO devices on the Fm+ Development Board (OM13260), and those

when using GPIO daughter cards (not supplied in the kit), require the GPIO Target Board

(OM13303). Each one has eight channels of LED indicator and push-button switches for

user input. See Figure 3.

3.2.3 PCA9617A bus buffer demo board (OM13398)

Bus buffers bridge two I2C-bus segments, which are provided on the Fm+ Development

Board (OM13260) by Bus1 and Bus2. Bus buffer daughter cards, such as the PCA9617A

Bus Buffer Demo Board (OM13398) (supplied in the kit) can be installed directly on Port E

(CN12). See Figure 4.

Fig 3. OM13303 GPIO target board PCB assembly

Fig 4. OM13260 bus buffer PCB assembly

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Fm+ development kit OM13320

3.2.4 Bridge board (OM13398)

Some existing Demo Boards used a single row connector with nine pins. To use these

with the Fm+ Development Kit requires the Bridge Board (OM13399, supplied in the kit).

See Figure 5.

3.2.5 Daughter cards (not supplied in the kit)

These are not in the OM13230 kit, and should be obtained separately. Daughter cards

hedge against obsolescence so that the Fm+ Development Kit (OM13320) can be used

with future devices by adding newly released daughter cards as they become available.

An example daughter card is shown in Figure 6.

Fig 5. OM13399 bridge board PCB assembly

Fig 6. Example daughter card PCB assembly

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Fm+ development kit OM13320

4. First time setup: Fm+ development board kit (OM13320)

4.1 Before you begin

To use the Fm+ Development Kit (OM13320) for the first time requires some hardware

setup and installation of both firmware (on the Fm+ Development Board OM13260) and

software on the attached computer.

The following three steps must be completed:

1. Install Jumpers on the Fm+ Development Board (OM13260) (see Section 4.3).

2. Install Firmware on the Fm+ Development Board (OM13260) (see Section 4.6).

3. Install the NXP GUI Software on the computer to be used with the kit

(see Section 4.7).

4.2 First time setup of the Fm+ development board (OM13260)

Several jumpers must be installed before using the Fm+ Development Board (OM13260)

PCB. The on-board microcontroller (MCU) must contain the appropriate firmware.

To install the firmware requires the connection to a Personal Computer (PC) running

Microsoft Windows 7/64 Operating System and a USB port.

4.3 OM132680 jumpers

The jumpers and their function are shown in Table 2. Using Figure 7 and the table data,

install the jumpers.

Table 2. OM13260 jumpers

Jumper Label Function First time

JP1 XPRESSO POWER Close

JP2 HDD Open

JP3 CONNECT Close

JP4 RST Open

JP5 PCA9955 address GND

JP6 ISP Open

JP7 SPI SEL 1

JP10 PCA9672 address GND

JP11 SDA1 pull-up A

JP12 SCL1 pull-up A

JP13 Bus1 bus voltage 3V3

JP20 PCA9672 address GND

JP21 SDA2 pull-up A

JP22 SCL2 pull-up A

JP23 Bus2 bus voltage 3V3

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4.4 OM13260 Port E bypass

Depending up the intended operation of the Fm+ Development Board (OM13260),

Port E (CN12) should be left open, or linked with a jumper wire, or for the attachment of a

Bus Buffer Board. The PCA9617A Bus Buffer Demo Board (OM13398) is supplied in the

kit.

For the purpose of this quick setup section, install the two-wire jumper (supplied) as

shown in Figure 8.

Remark: The two-wire jumper requires a twist, as shown. The diagonally opposite pins

are linked.

Fig 7. OM13260 test point locations

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