Broadcom HEDS-9930PRGEVB Manuel utilisateur

Broadcom HEDS-9930PRGEVB-UG100

March 4, 2022

HEDS-9930PRGEVB

Evaluation Board and Programming Kit

User Guide

Version 1.0

more information, go to www.broadcom.com. All trademarks, trade names, service marks, and logos referenced herein

belong to their respective companies.

Broadcom reserves the right to make changes without further notice to any products or data herein to improve reliability,

function, or design. Information furnished by Broadcom is believed to be accurate and reliable. However, Broadcom does

not assume any liability arising out of the application or use of this information, nor the application or use of any product or

circuit described herein, neither does it convey any license under its patent rights nor the rights of others.

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

Table of Contents

1 HEDS-9930EVB Evaluation Board..............................................................................................................................4

1.1 Top and Bottom Views.........................................................................................................................................4

2 Select Options..............................................................................................................................................................6

2.1 Selection Table ....................................................................................................................................................6

2.2 Programmable Select Options .............................................................................................................................8

3 Board Schematic and Pin Assignment......................................................................................................................9

3.1 Connector Assignment.......................................................................................................................................10

4 Code Wheel Drawing .................................................................................................................................................11

5 HEDS-9930PRGEVB Programming USB-SPI Kit.....................................................................................................12

6 AEDR-9930 Gateway Programming GUI..................................................................................................................13

7 Using AEDR-9930 Gateway SPI Protocol to Perform Calibration..........................................................................18

Revision History............................................................................................................................................................ 19

Version 1.0, March 4, 2022.......................................................................................................................................19

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

1 HEDS-9930EVB Evaluation Board

1.1 Top and Bottom Views

Figure 1: Bottom Side of the PCB HEDS-9930EVB

Figure 2: Top Side of the PCB 397 LPI

NOTE: Remove the protective kapton tape covering the encoder ASIC before use.

Mounting slot

Mounting hole

Code wheel OD

alignment guide

lines

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

The silkscreen-printed guideline on the PCB provides visual alignment of the code wheel edge (outer diameter) for each of

the different ROP (CPR) tracks. Figure 3 is a sample diagram showing the position when the encoder is aligned to 625 CPR

track.

Figure 3: Bottom of PCB with Code Wheel Edge for Different CPR Values

Figure 4: Sample Evaluation Board Mounting with Reference to Code Wheel

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

2 Select Options

2.1 Selection Table

Table 1: Selection Table for AEDR-9930 397 LPI

No. SEL1 SEL2 SEL3 Interpolation

Factor IND SEL Index

1 Low Low Low 1X Low Interpolation 1X - Index Gated 90°

High Interpolation 1X - Index Gated 180°

Open Interpolation 1X - Index Raw (Ungated)

2 High Low Low 2X Low Interpolation 2X - Index Gated 90°

High Interpolation 2X - Index Gated 180°

Open Interpolation 2X - Index Gated 360°

3OpenaLow Low 3X Low Interpolation 3X - Index Gated 90°

High Interpolation 3X - Index Gated 180°

Open Interpolation 3X - Index Gated 360°

4 Low High Low 4X Low Interpolation 4X - Index Gated 90°

High Interpolation 4X - Index Gated 180°

Open Interpolation 4X - Index Gated 360°

5 High High Low 5X Low Interpolation 5X - Index Gated 90°

High Interpolation 5X - Index Gated 180°

Open Interpolation 5X - Index Gated 360°

6OpenaHigh Low 6X Low Interpolation 6X - Index Gated 90°

High Interpolation 6X - Index Gated 180°

Open Interpolation 6X - Index Gated 360°

7 Low OpenaLow 7X Low Interpolation 7X - Index Gated 90°

High Interpolation 7X - Index Gated 180°

Open Interpolation 7X - Index Gated 360°

8High

OpenaLow 8X Low Interpolation 8X - Index Gated 90°

High Interpolation 8X - Index Gated 180°

Open Interpolation 8X - Index Gated 360°

9OpenaOpenaLow 9X Low Interpolation 9X - Index Gated 90°

High Interpolation 9X - Index Gated 180°

Open Interpolation 9X - Index Gated 360°

10 Low Low High 10X Low Interpolation 10X - Index Gated 90°

High Interpolation 10X - Index Gated 180°

Open Interpolation 10X - Index Gated 360°

11 High Low High 11X Low Interpolation 11X - Index Gated 90°

High Interpolation 11X - Index Gated 180°

Open Interpolation 11X - Index Gated 360°

12 OpenaLow High 12X Low Interpolation 12X - Index Gated 90°

High Interpolation 12X - Index Gated 180°

Open Interpolation 12X - Index Gated 360°

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

13 Low High High 13X Low Interpolation 13X - Index Gated 90°

High Interpolation 13X - Index Gated 180°

Open Interpolation 13X - Index Gated 360°

14 High High High 14X Low Interpolation 14X - Index Gated 90°

High Interpolation 14X - Index Gated 180°

Open Interpolation 14X - Index Gated 360°

15 OpenaHigh High 15X Low Interpolation 15X - Index Gated 90°

High Interpolation 15X - Index Gated 180°

Open Interpolation 15X - Index Gated 360°

16 Low OpenaHigh 16X Low Interpolation 16X - Index Gated 90°

High Interpolation 16X - Index Gated 180°

Open Interpolation 16X - Index Gated 360°

17 High OpenaHigh 17X Low Interpolation 17X - Index Gated 90°

High Interpolation 17X - Index Gated 180°

Open Interpolation 17X - Index Gated 360°

18 OpenaOpenaHigh 18X Low Interpolation 18X - Index Gated 90°

High Interpolation 18X - Index Gated 180°

Open Interpolation 18X - Index Gated 360°

19 Low Low Opena19X Low Interpolation 19X - Index Gated 90°

High Interpolation 19X - Index Gated 180°

Open Interpolation 19X - Index Gated 360°

20 High Low Opena20X Low Interpolation 20X - Index Gated 90°

High Interpolation 20X - Index Gated 180°

Open Interpolation 20X - Index Gated 360°

21 OpenaLow Opena25X Low Interpolation 25X - Index Gated 90°

High Interpolation 25X - Index Gated 180°

Open Interpolation 25X - Index Gated 360°

22 Low High Opena32X Low Interpolation 32X - Index Gated 90°

High Interpolation 32X - Index Gated 180°

Open Interpolation 32X - Index Gated 360°

23 High High Opena64X Low Interpolation 64X - Index Gated 90°

High Interpolation 64X - Index Gated 180°

Open Interpolation 64X - Index Gated 360°

24 Open High Opena128X Low Interpolation 128X - Index Gated 90°

High Interpolation 128X - Index Gated 180°

Open Interpolation 128X - Index Gated 360°

25 Low OpenaOpena256X Low Interpolation 256X - Index Gated 90°

High Interpolation 256X - Index Gated 180°

Open Interpolation 256X - Index Gated 360°

26 High OpenaOpena512X Low Interpolation 512X - Index Gated 90°

High Interpolation 512X - Index Gated 180°

Open Interpolation 512X - Index Gated 360°

Table 1: Selection Table for AEDR-9930 397 LPI (Continued)

No. SEL1 SEL2 SEL3 Interpolation

Factor IND SEL Index

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

Figure 5: Example of Voltage Divider Circuit

NOTE: Use 2 × 4.7 kΩresistors (VCC – GND).

The preceding digital interpolation factor may be used with the following equations to cater to various rotational speeds

(RPM) and counts per revolution (CPR).

RPM = (Count Frequency × 60) / CPR

The CPR (at 1X interpolation) is based on the following equation that is dependent on radius of operation (ROP).

CPR = LPI × 2π× ROP (inch) or CPR = LP mm × 2π× ROP (mm)

NOTE: LPmm (lines per mm) = LPI / 25.4.

2.2 Programmable Select Options

The SPI is programmable with an interpolator factor from 1x to 1024x.

1. Configure the external selection to SPI Mode: Program Selection.

2. For signal output after configuration, set the external selection to SPI Mode: Output Enabled.

27 OpenaOpenaOpenaSPI Mode Low SPI Mode: Program Selection

High SPI Mode: Output Enabled

a. Open selection must be connected to the middle of a voltage divider circuit.

Table 1: Selection Table for AEDR-9930 397 LPI (Continued)

No. SEL1 SEL2 SEL3 Interpolation

Factor IND SEL Index

Vcc

4.7kɏ

SEL

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

3 Board Schematic and Pin Assignment

Figure 6: HEDS-9930EVB Evaluation Board Schematic

Broadcom HEDS-9930PRGEVB-UG100

HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit

3.1 Connector Assignment

The finger design of Connector 1 matches either of the following card edge connectors:

EDAC, CONN EDGE DUAL FMALE 36POS 0.100, P/N# 395-036-520-202

SULLINS, CONN EDGE DUAL FMALE 36POS 0.100, P/N# EBC18DREH

The use of the preceding card edge connectors is not needed if the necessary connections can be made using manual

soldering to the relevant card edge fingers.

For simplification of connections, VDD and VCC, and AGND and DGND can be shorted.

NOTE: See Tab le 1 for the various selection options available by changing the SEL1, SEL2, and SEL3 jumper position.

Table 2: Connector 1 Pin Assignment

Connector 1 (Top Side) Label

1CAL

2ANAOUT

3 INDEX_SEL

4SEL1

5SEL2

6SEL3

7 AGND/VSSA

8VCC

9VDD

10 DGND/VSSD

11 CH_A/A+

12 CH_A/A– (SPI_DIN)

13 CH_B/B+

14 CH_BB/B– (SPI_CLK)

15 CH_I/I+(SPI_DOUT)

16 CH_I/I– (CLK_100KHz)

17 NC

18 NC

Table 3: Connector 2 Pin Assignment

Connector 2 (Top Side) Label State

1 SEL1 VCC

2AGND

3 OPEN

4 SEL2 VCC

5AGND

6 OPEN

7 SEL3 VCC

8AGND

9 OPEN

10 INDEX_SEL VCC

11 AGND

12 OPEN

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