National Instruments SLSC-12101 User manual

USER GUIDE

SLSC-12101

Prototyping Module

RADIAL

SELECTOR

CONNECTOR J1 CONNECTOR J2

SLSC -12 101

POWER READY

PROTOTYPING MODULE

Overview

The SLSC-12101 is a prototyping module intended to help SLSC module developers quickly

prototype designs. The module is Level-2 compatible, but can be Level-1 compatible if you

configure the rear I/O signals properly.

The SLSC-12101 features a MAX V CPLD as a module controller, which is pre-programmed

to provide basic access to the board peripherals. The MAX V CPLD is divided into four banks,

and the I/O for each is routed to its own region in the prototyping area. Each bank may have

independent voltage settings to allow the use of different digital standards supported by the

CPLD. Custom circuitry in the prototyping area has access to 24 V and 3.3 V rails from the

backplane, 5 V from the auxiliary power supply and corresponding bank power supply. Two of

the regions of the prototyping area, Bank 1 and Bank 2, include connections to two 44-pin

DSUB connectors in the front panel. A fifth region in the prototyping area, labeled RTI,

provides additional space to access the upper rear I/O connectors.

The peripherals designed into the SLSC-12101 board include two front panel LEDs (which

follow the recommendations of the SLSC Design Guidelines), a 16-position rotary switch, four

temperature sensors, and 17 ports 8-bit wide routed to their corresponding banks in the

prototyping area.

Additionally, to ease debugging and prototyping, a JTAG header compatible with Altera's USB

Blaster pinout is populated on the board which allows you to program the CPLD with a

custom design. A MICTOR connector exists between the CPLD and the SLSC connector to

allow monitoring of the SLSC interface signals using a logic analyzer such as the one on NI

VirtualBench.

Note All modifications to this module must comply with the Switch Load and

Signal Conditioning Module Design Specifications. It is the user's responsibility to

make sure that the product is modified and used in a way that complies with local

rules, regulations, and best practices.

Note All specifications and certifications in the manual apply only to the unaltered

product as provided by National Instruments. Any changes to the product invalidate

these specifications and certifications.

Related Documentation

This user guide assumes you have access to the documentation of the SLSC Module

Development Kit (MDK) and that you are familiar with the following documents:

•Switch Load and Signal Conditioning Module Design Specifications—Specifications

SLSC modules must abide in order to be compatible with SLSC systems.

•SLSC Design Guidelines—Describes best practices recommended for SLSC modules.

• SLSC-12101 Schematic—Schematic of the SLSC-12101 prototyping module.

•SLSC-12101 Specifications—Specifications of the unaltered SLSC MDK.

Other Files Available for the SLSC-12101 Module

These files are included in the SLSC Example Modules Files .zip file of the SLSC MDK.

• Module Controller VHDL code—Slsc12101Top.vhd, PkgEdBlock.vhd,

PkgRevision.vhd, PkgSlsc12101Registers.vhd, PkgSlscProtocol.vhd,

EdBlock.vhd, Interrupt.vhd, IoPort.vhd, Leds.vhd,

SpiChannelSelect.vhd, Control.vhd, CrcGen.vhd, ShiftRegister.vhd,

Spi.vhd

• Module Controller Quartus project files—SlscCpldTop.qpf, SlscCpldTop.qsf,

SlscCpldTop.sdc, SlscCpldTop.pof

• SLSC-12101 Capabilities files—SLSC-12101.bin, SLSC-12101.json

2| ni.com | SLSC-12101 User Guide

• 2D Mechanical Drawings and 3D Models

• SLSC-12101 PCB Drawing

Required Software

• NI LabVIEW 2015 or newer

• NI-SLSC driver

• To customize the CPLD: Quartus Design software, found on Quartus Software's website1

• To customize the Flash: createNvmemImage.py, included in the SLSC MDK files

Other Files

•SLSC-12101.vi—Example VI to access the SLSC-12101 properties.

Getting Started with the SLSC-12101

The SLSC-12101 can be inserted into an SLSC chassis and used the way it is shipped.

Note The SLSC chassis and SLSC modules do not support hot plug-in. The entire

chassis must be powered down when a module is installed or removed.

1. Ensure the CPLD power supplies are properly set.

After taking the module out of its packaging, check that three jumpers are inserted

between pins 5 and 10 of headers W2, W3, and W4. This ensures that the voltage is set to

3.3 V for the CPLD I/O banks 2, 3, and 4.

1Quartus Design Software is offered in a variety of editions with different features and price ranges.

Refer to the Quartus Software website for more information.

SLSC-12101 User Guide | © National Instruments | 3

Figure 1. Jumper Configuration

2. Install the module in the SLSC chassis.

Power off the SLSC chassis and then insert the module into an available slot. If you are

using the JTAG connector to program the CPLD or MICTOR cable to a logic analyzer,

leave one empty slot to the right of the module for cable routing. Connect the cable(s)

before inserting the module in the chassis.

3. Power up the chassis.

As soon as the chassis is powered up, the power LED of the front panel of the

SLSC-12101 should be lit green. The chassis will boot-up and start querying the slots for

module presence. Once the module is detected, the Ready LED should be lit green.

4. Access the module's properties and physical channels.

Use a host computer with LabVIEW and the NI-SLSC driver installed, and connected to

the same network as the SLSC chassis. Open SLSC-12101.vi. This VI gives you

access to the properties and physical channels that control the peripherals of the module.

You can control the LEDs, read the value dialed in the rotary switch, and access all the

DIO going to the prototyping area.

Description of the SLSC-12101

Mechanical Features

Unless otherwise noted, mechanical attributes and restrictions such as maximum component

height are defined in the Switch Load and Signal Conditioning Module Design Specifications.

4| ni.com | SLSC-12101 User Guide

Top View and Main Components

The following figure shows the top view of the SLSC-12101 module and highlights its most

relevant components.

Figure 2. SLSC-12101 Top View

1 1 1 2

BANK 1

BANK 2

BANK 3 RTI

BANK 4

165

1. Temperature Sensor (4x)

2. Voltage Configuration Header - Bank 2

3. Voltage Configuration Header - Bank 4

4. Voltage Configuration Header - Bank 3

5. MICTOR Connector (for NI VirtualBench)

6. JTAG Header (CPLD Programming)

• Prototyping area—The biggest area of the board is used for prototyping and is divided

into five areas filled with thru-hole grids. These grids can be used with standard 0.10"

headers, or may have wires or thru-hole components soldered to them. The prototyping

area provides access to the majority of the CPLD I/O, the front and rear connectors,

power supplies, and ground.

• Module controller—Implemented in a MAX V CPLD, handles the communication with

the SLSC chassis and controls the peripherals.

• Variable power supplies for CPLD Banks 2, 3, and 4—These power supplies can be set

by the developer by placing the jumper of the corresponding header in the correct

position.

Note The jumpers must be set before powering the module and should not be

changed once the system is powered.

• Front and rear connectors—The connectors on the front panel and those facing the RTI

area are the same as those recommended in the Switch Load and Signal Conditioning

Module Design Specifications and in the SLSC Design Guidelines.

• Rotary switch—The position of the rotary switch can be accessed by standard SLSC

properties.

• Front panel LEDs—The LEDs can be controlled through standard SLSC properties.

• Temperature sensors—4x ADT7310 are connected to the CPLD.

SLSC-12101 User Guide | © National Instruments | 5

Front Panel

The following figure shows the front view of the module and highlights its features.

Figure 3. Front Panel

CONNECTOR J1 CONNECTOR J2

SLSC -12 101

PROTOTYPING MODULE

POWER READY

RADIAL

SELECTOR

1. SLSC Interface Compatibility Glyph—This

indicates chassis compatibility type.

2. SLSC Rear I/O Compatibility Glyph—This

indicates RTI compatibility type, which is left blank

for customization. See the Switch Load and Signal

Conditioning Module Design Specifications for

more information.

3. Top Module Mounting Screw

4. LEDs—See Front Panel LEDs section for more

details.

5. Rotary Switch

6. Connector J1 (high-density 44-position DSUB)

7. Connector J2 (high-density 44-position DSUB)

8. Injector/Ejector Handle

9. Bottom Module Mounting Screw

6| ni.com | SLSC-12101 User Guide

Connectors

The SLSC-12101 is designed with the front and rear connectors recommended in the Switch

Load and Signal Conditioning Module Design Specifications and SLSC Design Guidelines.

The module has the proper connectors for meeting Level-1 compatibility, but you must

properly configure signals to and from these connectors in the RTI prototyping area. Refer to

the Switch Load and Signal Conditioning Module Design Specifications for compatibility

requirements.

Prototyping Area Hole Arrays

The following figure provides information about the arrays of holes found in the prototyping

areas. These holes may be used for direct soldering of components and wires, or for attaching

standard headers to connect to jumpers or secondary PCBs.

Figure 4. Prototyping Area Hole Array Details

2.54 mm

(0.100 in.)

2.54 mm

(0.100 in.)

Ø 1.02 mm

(0.040 in.)

plated

Prototyping Area

Hole Array Detail

129.54 mm (5.100 in.)

71.12 mm (2.800 in.)

68.58 mm (2.700 in.)

66.68 mm (2.625 in.)

15.24 mm (0.600 in.)

2.54 mm (0.100 in.)

0.0 mm (0.0 in.)

16.51 mm (0.650 in.)

19.05 mm (0.750 in.)

27.31 mm (1.075 in.)

117.48 mm (4.625 in.)

208.92 mm (8.225 in.)

110.49 mm (4.350 in.)

Mounting Holes

The following figure provides information about the location and size of mounting holes. The

three holes across the top of the PCB are reserved for future extension hardware. See the

Switch Load and Signal Conditioning Module Design Specifications for information about

placement restrictions around these holes.

SLSC-12101 User Guide | © National Instruments | 7

Twelve other mounting holes are provided: three larger holes in the corners of the board, and

nine smaller holes forming a grid in the center of the board in the prototyping area. These may

be used at the discretion of the module developer to provide mechanical fixturing as needed,

including shields, brackets, or mounting standoffs for custom secondary PCBs.

Figure 5. Mounting Hole Sizes and Locations

127.00 mm

(5.000 in.)

3X 66.68 mm

(2.625 in.)

3X 9.53 mm

(0.375 in.)

6.35 mm (0.250 in.)

0.0 mm (0.0 in.)

1.27 mm (0.50 in.)

253.54 mm (9.982 in.)

3X Ø 3.18 mm (0.125 in.)

Non-plated Thru Holes

3X Holes Reserved

for Extension HW

9X Ø 2.69 mm (0.106 in.)

Non-plated Thru Holes

3X 110.49 mm (4.350 in.)

3x 198.12 mm (7.800 in.)

0.0 mm (0.0 in.)

2X 11.94 mm (0.470 in.)

3X 19.05 mm (0.750 in.)

3X 123.83 mm

(4.875 in.)

Electrical Features

The Input Rails and Fuse

The module takes its power from the 24 V and 3.3 V provided by the chassis. 3.3 V is only

used for the VCCO of Bank 1 and other support circuitry such as the 40 MHz oscillator, flash

memory, and thermal sensors. The rest of the banks and the core power used by the CPLD

come from cascaded switcher regulators powered from an auxiliary 5 V supply connected to

the 24 V rail. Banks 2-4 can be set to different values to allow you to use different digital

standards available in the CPLD.

All the 24 V, 5 V, and Banks 1-4 VCCOs are available in the prototyping area to be used by

the support circuitry required by your design. You should make sure your design does not

exceed the power limitations of these rails.

As required by the Switch Load and Signal Conditioning Module Design Specifications, the

24 V power supply is protected by a 3.5 mA fuse. See the SLSC-12101 Bill of Materials for

more information.

8| ni.com | SLSC-12101 User Guide

Auxiliary 5 V Power Supply

The programmable power supplies and the CPLD core power supply of 1.8 V are all powered

by an auxiliary 5 V power supply which is powered from the 24 V provided by the SLSC

chassis. This 5 V power supply is also available in the prototyping area. The power supply can

support a maximum of 6 A.

Variable Voltage Power Supplies

The MAX V supports VCCIO of 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V in order to use several

I/O standards. The SLSC-12101 has user-configurable power supplies for three of the four

CPLD banks. The voltages are set by placing a jumper in the corresponding header connecting

the pair labeled with the desired voltage. The jumper should be placed on the board before the

module is inserted in the SLSC chassis.

Once a voltage is set for a bank, all the signals on that bank need to use an I/O standard

supported by that voltage. For more information about the supported I/O standards and rules to

interconnect I/O standards with the MAX V CPLD, refer to Altera's MAX V Device Handbook.

The voltages of all the banks are also routed to the prototyping area to allow the circuits built

there to use it. The maximum current that can be withdrawn from each bank depends on the

maximum current the source can provide, as well as the estimated current used by the CPLD.

Bank 1 is powered directly from the SLSC chassis and, by SLSC Specification 1.0, the module

shall not withdraw more than 400 mA. Banks 2-4 take their power from 24 V on-board power

supplies and can provide up to 2 A. In addition to the limitations imposed by the current limits

on the different rails on the module, you should also consider the power dissipation limitations

as defined in the Switch Load and Signal Conditioning Module Design Specifications.

Table 1. Bank Rail Available Voltages and Current Limits

Bank Available Voltages Maximum Current

1 3.3 V fixed, provided by the SLSC backplane 400 mA

2 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V 2 A

3 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V 2 A

4 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V 2 A

Module Controller

The SLSC-12101 Module Controller is implemented using Altera's MAX V

5M1270ZF256I5N. The CPLD is shipped pre-programmed with the compiled version of the

Slsc12101Top.vhd design also included in the SLSC Module Development Kit. The

controller's default image already implements the EdBlock.vhd design to handle SLSC

Frames and the required compliance registers as described in Chapter 8 of the Switch Load

and Signal Conditioning Design Specifications. Through the ED Mode, the controller can

access the peripherals present on the board, such as the front panel LEDs, the front panel

rotary switch, and 17 8-bit I/O ports routed from the CPLD to the prototyping area.

SLSC-12101 User Guide | © National Instruments | 9

CPLD Programming

The SLSC-12101 has a header that directly connects to Altera's USB Blaster to quickly

program the CPLD with a custom design. You can use the SLSC12101Top.vhd file provided

in the SLSC Module Development Kit as a starting point for development.

Front Panel LEDs

The SLSC-12101 has Power and Ready LEDs as recommended in section 3.6 of the Switch

Load and Signal Conditioning Design Specifications. The LEDs can be lit red, yellow, and

green—continuously or blinking—so you can implement the information in Table 3-1 of that

specification. The default module controller behavior implements the Power Solid Green and

the Ready Solid Green as recommended in Table 3-1.

The Leds.vhd component provided with the SLSC Module Development Kit implements an

easy interface to control the LEDs through the NI.ReadyLedColor, NI.ReadyLedMode,

NI.PowerLedColor, and NI.PowerLedMode properties described in the capabilities file

included as part of the kit.

Rotary Switch

The 16-position, 4-bit rotary switch on the front panel is accessible from the CPLD. The value

can be accessed through the SLSC API using the NI.RotarySwitch property.

SI5356A Clock Generator

The module has pads for you to add an SI5356A clock generator should you need more clocks

in your design. This clock generator can provide up tp four different frequencies on eight pins.

Each output clock has two pins. In the SLSC-12101, one pin is routed to a global clock pin of

the CPLD, and another pin is routed to the prototyping area. For more information on the

routing of these clocks to the prototyping area, refer to the pinout sections and the

SLSC-12101 Schematic.

Design Development, Characterization, and

Debugging

The SLSC-12101 was designed to provide an easy way to prototype SLSC modules in

development. Use the resources provided by the SLSC chassis, the module controller, and the

connectors to help you implement your design, to characterize some aspects such as power

consumption and dissipation, as well as for increased visibility for diagnostics.

Prototyping Area

Most of the board consists of the prototyping areas, which are filled with hole arrays of

2.54 mm (0.100 in.) pitch. These are all plated holes to ease soldering. There are five main

grid areas for prototyping: Bank 1, Bank 2, Bank 3, Bank 4, and RTI. Each bank gives access

to signals of the corresponding bank on the CPLD as well as to the corresponding bank

VCCO. Banks 1 and 2 also provide access to the front panel connectors.

10 | ni.com | SLSC-12101 User Guide

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