SpinCore Technologies PulseBlaster128 Manual de usuario

PulseBlaster128

Owner's Manual

SpinCore Technologies, Inc.

www.spincore.com

PulseBlaster128

Congratulations an thank you for choosing a esign from

SpinCore Technologies, Inc.

We appreciate your business!

At SpinCore we aim to fully support the nee s of our customers. If

you are in nee of assistance, please contact us an we will strive to

provi e the necessary support.

SpinCore Technologies, Inc. reserves the right to make changes to the product(s or information herein without notice.

PulseBlaster™, SpinCore, and the SpinCore Technologies, Inc. logos are trademarks of SpinCore Technologies, Inc. All other

trademarks are the property of their respective owners.

SpinCore Technologies, Inc. makes every effort to verify the correct operation of the equipment. This equipment version is not

intended for use in a system in which the failure of a SpinCore device will threaten the safety of equipment or person(s .

www.spincore.com 2 2011-08-02

PulseBlaster128

Table of Contents

I. Intro uction .............................................................................................. 4

Boar Overview ........................................................................................................... 4

Boar Layout ................................................................................................................ 5

Boar Setup ................................................................................................................. 6

How to Assemble the PB128 .................................................................................... 6

How to Connect the PB128 ....................................................................................... 6

Boar Features ............................................................................................................ 7

External Clock and Clock Output ..............................................................................

Output Signals ...........................................................................................................

Hardware Trigger and Reset .....................................................................................

PulseBlaster Address ................................................................................................

Instruction Capabilities ..............................................................................................

Pinouts .......................................................................................................................... 8

Control Header .......................................................................................................... 8

Output Headers ......................................................................................................... 9

II. Boar Functionality .............................................................................. 10

PulseBlaster Core ...................................................................................................... 10

Interrupts .................................................................................................................... 10

Overview ................................................................................................................. 10

Controlling Interrupts with Software ........................................................................ 10

Interrupt Addresses ................................................................................................. 10

Instructions ................................................................................................................ 11

Instruction Structure ................................................................................................ 11

Programming Instructions to the PB128 ................................................................. 11

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PulseBlaster128

I. Intro uction

Boar Overview

The PulseBlaster128 is a modified PulseBlaster design with 128 output pins and custom interrupt

functionality. It is built using the TerASIC DE3-150 platform. The architecture of the PulseBlaster

processor is described in detail in multiple documents including the manual of the PulseBlaster24 board

which can be found at http://www.spincore.com/CD/PulseBlaster/ PCI/ PB24/PB_Manual.pdf . In this guide

you will learn the basics to getting started with your PB128 board.

Figure 1: The PulseBlaster128

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PulseBlaster128

Boar Layout

The PB128 requires three main connections in order to function: power, USB, and clock

connections. The board comes with its own AC/DC power supply and custom power adapter to connect

to the board. In addition there is also a power switch that activates the power supply and turns the board

on. The PB128 connects to the host PC through the mini USB connector on the top edge of the board.

The PB128 has five headers on the board: four output headers and one control header. The 128

output channels are divided among four output headers with 32 output channels each. The board's

control signals are found on the control header. This includes signals such as the status outputs, the

hardware trigger and reset, and the hardware interrupt pins. Detailed pinouts for these headers can be

found in the Pinouts section of this guide.

The two figures below label a few important parts of the PB128.

Figure 2: Important parts of the PB128

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PulseBlaster128

Figure 3: Additional important parts of the PB128

Boar Setup

Install the Software

Install the PulseBlaster128 software package from

http://www.spincore.com/CD/PulseBlaster128/PulseBlaster128Installer.exe. Run this installer before

connecting the device.

Assemble the PB128

Remove the PB128 from its packaging and connect the Header Board to the Main Board using

the supplied screws. Make sure to connect it as shown in Figures 2 and 3. After the Header Board is

connected, it is time to add the standoffs to the bottom of the board. Put the 6 standoffs as shown in

Figure 2. Next, attach the provided SMA-to-SMA clock loop cable as shown in Figures 2 and 3; the board

will not operate without this clock cable.

Connect the PB128

After the software package has been installed, attach the PB128 to the provided power supply,

and then plug the power supply into the wall. Next attach the small end of the mini-USB cable to the

board and the large end into the PC.

Push in the power switch to power up the board. Shortly afterward, the PC will notice the device

and ask to install drivers. Install the drivers manually by specifying the location of the provided drivers

(assuming a default software installation, this will be C:\SpinCore\PulseBlaster128\drivers .

Test the Connection

Once the drivers for the device have been installed, navigate from the Windows Start Menu to

Programs → SpinCore → PulseBlaster128. Click on the link to the pb128usb_ex1.exe example program.

The program should demonstrate a simple method for switching between interrupt routines. If the board

is unconnected, the program will report “ERROR - USB device not initialized.” If this occurs, confirm that

the steps above have been completed properly.

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PulseBlaster128

Boar Features

External Clock an Clock Output

The PulseBlaster128 clock is controlled from the EXT_CLK SMA connector on the board. The

PulseBlaster128 core uses a 4x clock multiplier. The CLK_OUT SMA connector always provides a 50

MHz clock signal, and the EXT_CLK SMA To run the PulseBlaster Core at 200 MHz, connect the two

jacks with the included short cable.

Output Signals

The PulseBlaster128 has 128 output signals among 4 output headers. When programming the

board, the pb_inst instruction asks for an array of integers for the flag data. The first element in the array

corresponds to the 32 bits in the first output group. The second element corresponds to the 32 bits in the

second output group and so on.

Har ware Trigger an Reset

The PulseBlaster128 has hardware trigger and hardware reset buttons that can be used to trigger

or reset the board with the push of a button. Their location can be seen on Figure 2.

PulseBlaster A ress

Unlike pb_inst from SpinAPI, pb128_inst requires the address in PulseBlaster memory to write to.

The included example program demonstrates one possible way to keep track of addresses.

Instruction Capabilities

This board has 8192 instructions and 256 interrupts. The shortest instruction is 25 ns. The delay

resolution is 5 ns.

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PulseBlaster128

Pinouts

Control Hea er

There are two main types of 40 pin headers on the PB128 board. There are four output headers and one

control header. The control header has its pinout shown in Figure 4. All of the even numbered pins are

grounded, but only the shaded GND pins are connected to the board's ground. The other ground pins are

driven low by the FPGA.

Figure 4: Control Header Pinout

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PulseBlaster128

Output Hea ers

There are 4 different Output Headers on the PB128. Each Output Header has 32 output channels from

the PulseBlaster core and various power and ground pins. The exact pinout is shown in Figure 5.

Figure 5: Output Header Pinout

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PulseBlaster128

II. Boar Functionality

PulseBlaster Core

The PulseBlaster128 uses a modified PulseBlaster core with additional modified interrupt

functionality. When the interrupt lines are fixed, the board can be used as a standard PulseBlaster with

128 output channels. All of the information from the standard PulseBlaster manual

(http://www.spincore.com/CD/PulseBlaster/PCI/PB24/PB_Manual.pdf applies in this case.

Interrupts

Overview

The PulseBlaster128 has 256 interrupts controlled by 8 interrupt lines. These lines can be

controlled by hardware through 8 pins on the control header or through software using API functions. The

interrupts are immediate and are always active.

Controlling Interrupts with Software

The PulseBlaster128's custom API comes with two functions that allow the user to control

interrupt states through software and another function to read back the current interrupt state. The

following table explains the functions used to control interrupts in software.

int pb128_set_int_source(int select) Selects the interrupt source. If select is 0 then the

hardware interrupts are used. If select is 1 then

the software interrupts are used.

int pb128_set_sw_int(int interrupt) Sets the software interrupt. If the interrupt source

is set to software, this will cause the board to start

running the selected interrupt if it is not already

running. If the interrupt source is set to hardware,

then this will set the software interrupt without

changing the boards status. That means this

interrupt will become active if the source is

switched to software.

int pb128_get_current_int(void) Returns the current interrupt. This will work when

hardware interrupts are selected and when

software interrupts are selected.

Table 1: Interrupt API functions

Interrupt A resses

When an interrupt is called, the PulseBlaster core reads the interrupt address memory to find the

address of the next instruction to run. This address memory stores one address for each interrupt. It is

programmed using the API through the function in the following table:

int pb128_int_addr_write(int interrupt,

int pb_address)

This function assigns an address of a PulseBlaster

instruction to the given interrupt.

Table 2: Interrupt Address API function

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