Freescale Semiconductor MPC5777C EVB Manuale utente

Freescale

User’s Guide Document Number:

MPC5777CEVBUG

Rev. 0, 08/2015

MPC5777C EVB User Guide

Prototype Board

by: Kumar Sendhil

Automotive Micro-Controller Group

Austin, Texas USA

1. Introduction

This user guide details the setup and configuration

of the Freescale MPC5777C Evaluation Board

(hereafter referred to as the EVB). The EVB is

intended to provide a mechanism for easy

customer evaluation of the MPC57xx family of

microprocessors, and to facilitate hardware and

software development.

At the time of writing this document, the

MPC57xx family consists of the 55nm

powertrain and safety devices. For the latest

product information, please speak to your

Freescale representative or consult the MPC57xx

website at www.freescale.com.

The EVB is intended for bench or laboratory use

and has been designed using normal temperature

specified components (+70°C).

Contents

1. Introduction.....................................................................1

2. EVB Features.................................................................3

3. Configuration —Motherboard........................................4

4. Configuration —MPC5777C-416DS Daughter card ....13

5. Configuration —MPC5777C-516DS Daughter card ....26

6. Board Interface Connector ...........................................37

7. Default Jumper Summary Table...................................50

8. List of Acronyms...........................................................53

Freescale

Introduction

MPC5777C EVB User Guide, Rev. 0

1.1 Modular Concept

For maximum flexibility and simplicity, the EVB has been designed as a modular development platform.

The EVB main board does not contain an MCU. Instead, the MCU is fitted to an MCU daughter card

(occasionally referred to as an adapter board). This approach means that the same EVB platform can be

used for multiple packages and MCU derivatives within the MPC57xx family. High density connectors

provide the interface between the EVB and MCU daughter cards as shown Figure 1 See Section 4&5, “

Freescale

Introduction

MPC5777C EVB User Guide, Rev. 0

Configuration —MPC5777C-416DS Daughter card, Configuration —MPC5777C-516DS Daughter

card”for more details on the daughter cards and Section 6, “Board Interface Connector”for more details

on the interface connectors.

Figure 1: Modular concept –Mother Board (MB) and MCU daughter card

Please consult the MPC57xx website at www.freescale.com or speak to your Freescale representative for

more details on the availability of MCU daughter cards.

The EVB is designed to be used with the motherboard and standalone configurations

NOTE

For details on your specific daughter card, please consult the instructions

included with the daughter card.

1.2 Daughter Card Availability

A number of compatible daughter cards are available for the motherboard across a number of devices.

Table 1 gives an overview of daughter cards that can be used with MPC57xx motherboard (Part Number:

MPC5746MMB) and associated MPC5777C devices, package sizes and part numbers.

Table 1: Daughter Card Overview

Daughter card number

Device

Package

Socket

Nexus

MPC5777C-416DS

MPC5777C

416 BGA

Yes

MPC5777C-516DS

MPC5777C

516 BGA

Yes

All daughter cards will be similar in design and concept. For details on the daughter cards please refer to

Section 4&5, “

Freescale

Introduction

MPC5777C EVB User Guide, Rev. 0

Configuration —MPC5777C-416DS Daughter card, Configuration —MPC5777C-516DS Daughter card”.

Freescale

EVB Features

MPC5777C EVB User Guide, Rev. 0

2. EVB Features

The EVB system consists of a motherboard and a daughter card, both with distinct features.

The Mother Board provides the following key features:

•Support provided for different MPC57xx MCUs by utilizing MCU daughter cards

•Single 12 V external power supply input with four on-board regulators providing all of the

necessary EVB and MCU voltages; power supplied to the EVB via a 2.1mm barrel style power jack

or a 2-way level connector; 12 V operation allows in-car use if desired

•Master power switch and regulator status LEDs

•Two 240-way high-density daughter card expansion connectors allowing connection of the MCU

daughter card or a custom board for additional application specific circuitry

•All MCU signals readily accessible at a port-ordered group of 0.1inch pitch headers

•RS232/SCI physical interface and standard DB9 connector

•LINFlexD interface , Ethernet interface

•2 CAN interfaces, one configurable to be connected to one out of two CAN modules, and one

connected to a dedicated third CAN module

•Variable resistor, driving between 5 V and ground

•4 user switches and 4 user LEDs, freely connectable

• Liberal scattering of GND test points (surface mount loops) placed throughout the EVB

**Mother Board has FlexRAY connector, but this feature is not used on MPC5777C

The daughter cards provide the following features:

•MCU (soldered or through a socket)

•40MHz onboard clock oscillator circuit in EVB for MCU Clocking

•User reset switch with reset status LEDs and Power Indication LEDs

•Standard 14-pin JTAG debug connector and 50-pin SAMTEC Nexus connector

•USB (Type B) / UART transceiver to interface with MCU

•Liberal scattering of ground and test points (surface mount loops) placed throughout the EVB

•Power SBC for standalone function of Daughter Card

•1 CAN and 1 LIN connector supported by Power SBC

NOTE

To alleviate confusion between jumpers and headers, all EVB jumpers are

implemented as 2 mm pitch whereas headers are 0.1in. (2.54 mm). This

prevents inadvertently fitting a jumper to a header.

CAUTION

Before the EVB is used or power is applied, please fully read the following

sections on how to correctly configure the board. Failure to correctly

configure the board may cause irreparable component, MCU or EVB

damage.

Configuration—Motherboard

MPC5777C EVB User Guide, Rev. 0

6 Freescale

3. Configuration —Motherboard

This section details the configuration of each of the Mother Board functional blocks.

The Mother Board has been designed with ease of use in mind and has been segmented into functional

blocks as shown in Figure 2 Detailed silkscreen legend has been used throughout the board to identify

all switches, jumpers and user connectors.

Figure 2: Mother Board - Functional Blocks

3.1 Power Supply Configuration

The EVB requires an external power supply voltage of 12 V DC, minimum 1 A. This allows the EVB

to be easily used in a vehicle if required. The single input voltage is regulated on-board using three

switching regulators to provide the necessary EVB and MCU operating voltages of 5.0 V, 3.3 V, 1.25 V

and one 5 V linear regulator for the ADC supplies and references.

For flexibility there are two different power supply input connectors on the motherboard as detailed

below. There is also a power supply option on the daughter card to use the daughter card in standalone

mode. Please refer to Section 4.1.2, 4.1.3 “Daughter Card Standalone Power Input -External &

Daughter Card Standalone Power Input –Power SBC” for details on the daughter card power input.

Configuration—Motherboard

MPC5777C EVB User Guide, Rev. 0

7 Freescale

3.1.1Motherboard Power Supply Connectors

2.1 mm Barrel Connector –P26:

Figure 3: 2.1 mm Power Connector

2-Way Lever Connector –P33:

This can be used to connect a bare wire lead to the EVB, typically from a laboratory power supply.

The polarization of the connectors is clearly marked on the EVB. Care must be taken to ensure correct

connection.

Figure 4: Lever Power Connector

3.1.2Regulator Power Jumpers

There are four power regulator circuits on the MPC57xx motherboard that supply the required voltages

to operate the MCUs:

• 5V_SR: 5 V switching regulator to supply the power management controller, I/O and peripherals

• 3.3V_SR: 3.3 V switching regulator for Ethernet, debug and I/O

• 5V_LR: 5 V linear regulator for ADC supply and reference

All of the regulators have the option of being disabled/ enabled if they are not required. By default

(jumpers are off), all of the switching regulators are enabled and the 5 V linear regulator is disabled. The

regulators can be enabled individually by the following jumper settings:

• Connecting J57 enables the 5 V linear regulator

• Disconnecting J58 enables the 5 V switching regulator

• Disconnecting J59 enables the 3.3 V switching regulator

• Disconnecting J60 enables the 1.25 V switching regulator

The regulators supply power to the daughter cards through the board connector. The individual

selection and configuration of the MCU supplies are done on the daughter cards.

Configuration—Motherboard

MPC5777C EVB User Guide, Rev. 0

8 Freescale

NOTE

Not all the supported daughter card MCUs require all the supplies to be

switchedon.Please refertoSection 4,“

Configuration—Motherboard

MPC5777C EVB User Guide, Rev. 0

9 Freescale

Configuration —MPC5777C-416DS Daughter card”for details.

3.1.3Power Switch, Status LEDs and Fuse

The main power switch (slide switch SW5) can be used to isolate the power supply input from the EVB

Voltage regulators if required.

• Moving the slide switch to the right (away from connector P33) will turn the EVB on

• Moving the slide switch to the left (towards connector P33) will turn the EVB off

When power is applied to the EVB, four green power LEDs adjacent to the voltage regulators show

the presence of the supply voltages as follows:

• LED D9 –Indicates that the 5.0 V linear regulator is enabled and working correctly

• LED D11 –Indicates that the 5.0 V switching regulator is enabled and working correctly

• LED D12 –Indicates that the 3.3 V switching regulator is enabled and working correctly

• LED D13 –Indicates that the 1.25 V switching regulator is enabled and working correctly

If no LED is illuminated when power is applied to the EVB and the regulators are correctly enabled

using the appropriate jumpers, it is possible that either power switch SW5 is in the “OFF” position or

that the fuse F1 has blown. The fuse will blow if power is applied to the EVB in reverse-bias, where a

protection diode ensures that the main fuse blows rather than causing damage to the EVB circuitry. If

the fuse has blown, check the bias of your power supply connection then replace fuse F1 with a 20mm

1.5A fast blow fuse.

3.2 CAN Configuration

The EVB has two NXP TJA1041T high speed CAN transceivers and two standard DB9 connectors

to provide physical CAN interfaces for the MCU.

The pinout of the DB9 connectors (J5/J6) is shown in Figure 5.

Figure 5: CAN DB9 connector Pin out

Configuration—Motherboard

MPC5777C EVB User Guide, Rev. 0

10 Freescale

For flexibility, the CAN transceiver I/Os are also connected to two standard 0.1 in. connectors (P4 and P5)

at the top side of the PCB. The pin-out for these connectors is shown in Figure 6.

Figure 6: CAN 3pin header interface connector

By default the CAN interfaces are not enabled. To enable the CAN interfaces the jumpers detailed in

Table 2 need to be placed,

Table 2: CANcontroljumpers

Jumper

Label

Description

J23

CAN2_EN

PHY U2 configuration

1-2: WAKE to GND

3-4: STB to 5V

5-6: EN to 5V

J32

CAN2

1-2: PHY TX to MCU

3-4: PHY RX to MCU

J33

CAN-PWR

1-2: 5.0V_SR to PHY U2 VCC

3-4: 12V to PHY U2 VBAT

J34

—

PHY U2 signal out

1: ERR

2: INH

J21

CAN_EN

PHY U1 configuration

1-2: WAKE to GND

3-4: STB to 5V

5-6: EN to 5V

J35

CAN

1-2: PHY TX to J37-2

3-4: PHY RX to J38-2

J37

CAN

PHY U1 TX to MCU

1-2: MCAN1 TX

2-3: TTCAN TX

J38

—

PHY U1 RX to MCU

1-2: MCAN1 RX

2-3: TTCAN RX

J36

—

PHY U1 signal out

1: ERR

2: INH

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