Motorola SPX3BUM/D User manual

Welcome to Sandpoint, Motorola’s flexible processor development platform. Using Sandpoint

you can evaluate current Motorola host processors and integrated processors based on the

PowerPC architecture using MPMC (Motorola Processor PCI Mezzanine Cards). These cards

are interchangable and one Sandpoint platform can support numerous processor-specific

PPMC cards (but just one at a time).

This user’s manual covers the following issues:

Topic Page

Section 1, “Introduction” 2

Section 2, “Setup” 4

Section 3, “Configuration” 7

Section 4, “Programmers Model” 16

Section 5, “Initializing Sandpoint” 22

Section 6, “Development Issues” 23

Section 7, “Troubleshooting” 27

Section 8, “FAQ” 30

To locate any published errata or updates for this document, refer to the Motorola website.

User’s Manual

SPX3BUM/D

Rev. 1.2, 2/2003

Sandpoint Microprocessor

Evaluation System

User’s Manual

2 MOTOROLA

1 Introduction

The Sandpoint III motherboard, or “SP3” for short, is an evaluation baseboard which accepts one Motorola

Processor PMC (MPMC) or PrPMC card, as well as up to four PCI cards, and supplies typical PC-I/O

peripherals. Sandpoint provides a flexible base for the evaluation of new Motorola processor devices, and

for early software design for customer project using Motorola processors. Figure 1 shows a block diagram

of the Sandpoint III system.

Figure 1. Sandpoint III Block Diagram

Motorola

MPMC

Board

PCI Slots

Winbond

IDE

SuperIO

KBD

MSE

SPF100

COM1

COM2

PAR

FLP

ROM1

ROM2

NVRM

MOTOROLA 3

1.1 Features

SP3 has the following features:

• One MPMC slot for a processor board (PrPMC compatible with PCI arbitration extensions).

• Two 32-bit PCI slots (5V)

• Two 32/64-bit PCI slots (5V)

• PMC and PCI slots auto-sense/auto-select 33 or 66 MHz operation.

• Two standard 16650-compatible ESD-protected serial ports.

• IEEE 1284 parallel port.

• Floppy disk port.

• Two ATA33 bus-master IDE ports.

• PS/2 mouse and keyboard connectors.

• BBVRAM; 8K bytes

•Real-TimeClock.

• Switch-selectable operating modes.

• Advanced Power Controller (“soft on/off”).

• LED monitors for critical functions.

The I/O subsystem is identical to that of the Sandpoint 2 and the “EC” version of the older Yellowknife

development platform. When properly configured, software written for these platforms should operate

identically when executed on a Sandpoint 3.

4 MOTOROLA

2 Setup

Sandpoint 3 is shipped ready to run the DINK debugger software. If you will be running other operating

systems, refer to the respective installation and setup instructions. Many OSes will communicate using the

same serial port DINK does, so the following setup may apply as well.

To setup your system, you will need the following material:

• Sandpoint 3 system

• Mac, PC or workstation running a terminal program.

• Null-modem cable.

Figure 2. Sandpoint III Setup Diagram

STEP 1

Connect the Sandpoint to a 120 VAC source using the supplied AC power code. For international operation

at 240 VAC, replace the connector with an appropriately-keyed power cable.

STEP 2

Turn the power supply on using the switch at the back of the Sandpoint chassis near the power cord. The

system will not turn on at this time.

STEP 3

Attach a null-modem cable between the Sandpoint COM1 port (top-most as shown in Figure 2) to the PC

(or workstation) serial port (usually COM1).

STEP 4

Startup a terminal emulator program. Common terminal emulators include “Hyperterminal”, available for

free with most Windows PCs, and many commercial programs such as Hayes “SmartComm”. Setup the PCs

terminal program to use the following settings:

• 9600 Baud

• 8 Bits

• No Parity

COM1 COM2

',1.!!JR

MOTOROLA 5

•1StopBit

• No Handshaking

• Terminal Emulation: any

STEP 5

Turn on the Sandpoint by pushing the power switch on the front of the chassis. DINK will start and print a

banner:

###### ### # # # # ##### #####

# # # ## # # # # # # #

# # # # # # # # # #

# # # # # # ## ##### #####

# # # # # # # # # #

# # # # ## # # # # #

###### ### # # # # ##### #######

( ( ( ( (AltiVec) ) ) ) )

Version : 12.2, Metaware Build

Released : Jan 31, 2001

Written by : Motorola’s RISC Applications Group, Austin, TX

System : Sandpoint with Altimus/Talos (MPMC60x/7xx/74xx)

Processor : MPC7400 V2.8 @ 500 MHz, Memory @ 100 MHz

Memory : Map B (CHRP), 00000000...03FFFFFF

Refer to ‘history.c’ for release info, changes, errata and fixes.

DINK32_MAX >>

At this point, DINK is ready to accept user commands such as downloading and starting code or assembling

user programs. Refer to the DINK User’s Manual for more details on using DINK. If you are using another

ROM, such as for an OS, follow the instructions for the ROM.

6 MOTOROLA

2.1 Null Modem Cable

Since both Sandpoint 3 and the PC or workstation it communicates with are computers and therefore are

DTEs (Data Terminal Equipments), a special serial cable known as a null-modem cable is required. These

cables are readily available from computer supply stores. In addition, it is simple to make, as shown in

Figure 3.

Figure 3. Null Modem Diagram

Once the cable is available or constructed, attach one end to the Sandpoint COM1 port and the other to the

PC/Workstation. Either end will work with either computer.

DB9 Female

Back View

DB9 Female

Back View

MOTOROLA 7

3 Configuration

Sandpoint 3 is shipped ready to run the DINK firmware by default. The following configuration options are

preset:

• MPMC is the PCI arbiter.

• MPMC is the interrupt controller using Serial-EPIC.

Occasionally, however, software will require other configurations, which Sandpoint supports to a limited

extent. This is often done to make a Sandpoint more closely resemble the target development platform.

Configurable features include:

• Using an external PCI arbiter instead of the PMC-resident arbiter.

• Using the 8259 PIC in the Winbond instead of the PMC interrupt controller.

• PnP (Plug-and-Play) PC I/O devices can remain uninitialized and ‘virtually’ disappear.

Another reason to change the configuration is to use the legacy modes for Sandpoint 2 compatibility. Refer

to Appendix A for details on legacy configurations. All options on Sandpoint 3 are set via two ‘DIP’

switches, as shown in Figure 4.

Figure 4. Sandpoint 3 in an ATX Chassis

POWER

SUPPLY

WINBOND

WINBOND SW2

SW1

POWER

SWITCH

8 MOTOROLA

The switches have the same orientation; with the system standing vertically, the switches operate as shown

in Figure 5

Figure 5. Sandpoint 3 SW1/SW2 Configuration Switches

All configuration switches should be changed with the power off; changes only take effect on a system

power-on reset. The system pushbutton reset is not necessarily sufficient.

3.1 SW1 Options

SW1 is located near the bottom of the Sandpoint 3 board, near the end of the fourth PCI slot. It controls the

features shown in Table 1:

Table 1. Sandpoint 3 SW1 Options

Switch Name Definition Default

1 ROMSEL ROM Selection

2 ROM1WP ROM1 Write Protect

3 reserved reserved

4 FRCPCI33 Force PCI to 33MHz

5 EXTCLK Use external clock

6 SSCLK Spread-Spectrum Clock



RIGHT = ON

LEFT = OFF

MOTOROLA 9

3.1.1 ROMSEL

The “ROMSEL” switch may be used to select between the primary and secondary flash device (if any) on

the Sandpoint 3.

NOTE: Not all Sandpoint 3’s have a secondary flash.

NOTE: The RMODE switch (see Section 3.3.2) overrides this switch.

3.1.2 ROM1WP

The “ROM1WP” switch may be used to write-protect the secondary (backup) PCI-hosted bootROM, if any.

This primary ROM normally contains the DINK debugger, but with the backup ROM protected, users may

overwrite the boot ROMs with development code and still return to DINK as a backup measure.

NOTE: Not all Sandpoint 3’s have a secondary flash.

3.1.3 Reserved

Switch SW2-3 is reserved and has no function.

7 SSRNG Spread-Spectrum Range

8 PSON Force Power Supply ON

Table 2. Sandpoint 3 ROMSEL Option

ROMSEL Definition Notes

SW1-1

On (right) Primary ROM (29F040) is used for PCI boot

option. Normal mode.

Off (left) SecondaryROM (28F800) is used for PCI boot

option.

Table 3. Sandpoint 3 ROM1WP Switch

ROM1WP Definition Notes

SW1-2

On (right) ROM1 may be read to or written from. Use to store OS code.

Off (left) ROM1 is write-protected.

Table 1. Sandpoint 3 SW1 Options

Switch Name Definition Default

10 MOTOROLA

3.1.4 FRCPCI33

The “FRCPCI33” switch may be used to cause the PCI bus to operate at 33 MHz regardless of the status of

the M66EN signal, which normally allows the PCI bus to automatically select 66 MHz PCI. This switch is

normally enabled, forcing only 33 MHz operation since the Winbond component does not support 66 MHz

operation.

It may be possible to operate the PCI bus at 66 MHz if software does not use the Winbond or the ISA bus.

3.1.5 EXTCLK

The “EXTCLK” switch allows the user to switch from the standard, on-board 33/66 MHz PCI bus clock

generator, from which all other clocks are derived, to an externally-supplied clock signal. This allows testing

the system at different frequencies other than the standard 33 MHz or 66 MHz frequencies supported.

The clock source must be attached to the coaxial SMA connector on the board,and the clocksignal supplied

must meet the requirements listed in Table 6.

NOTE: Care must be used that the devices receiving the clock are capable of and are configured to operate

at the new clock speed. In particular, Motorola processors have internal PLLs which require a minimum

clock input to operate properly.

NOTE: The external clock source must be on before power is applied to the Sandpoint.

Table 4. Sandpoint 3 FRCPCI33 Switch

Force PCI33 Definition Notes

SW1-4

On (right) Force 33 MHz PCI only. Normal mode.

Off (left) Allow automatic 33/66 MHz PCI. Experimental purposes only.

Table 5. Sandpoint 3 EXTCLK Switch

EXTCLK Definition Notes

SW1-5

On (right) Normal clock mode Normal mode.

Off (left) Accept clock from SMA connector. Use for testing.

Table 6. Sandpoint 3 External Clock

Requirements

Parameter Value

ZIN 50 Ω

VIN 3V

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