Broadcom HEDS-9930PRGEVB User manual

Broadcom HEDS-9930PRGEVB-UG100
March 4, 2022
HEDS-9930PRGEVB
Evaluation Board and Programming Kit
User Guide
Version 1.0

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
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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

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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

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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

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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°

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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

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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
4.7kɏ
4
SEL

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
3 Board Schematic and Pin Assignment
Figure 6: HEDS-9930EVB Evaluation Board Schematic

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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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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
4 Code Wheel Drawing
For the AEDR-9930 evaluation board sample, the matching code wheel sample drawing is as shown in Figure 7.
Figure 7: AEDR-9930 397 LPI 4-Track (CPR) Code Wheel Drawing
For the detailed drawing of the sample code wheel, ask your regional Sales/FAE.
NOTE:
Ignore 256 CPR code wheel track; it is not valid to use with autocalibration.
All other code wheel tracks with base resolution 512, 1000, and 1250 CPR require autocalibration.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
5 HEDS-9930PRGEVB Programming USB-SPI Kit
To program interpolation value other than the ones offered in Table 1 using the SEL1, SEL2, SEL3 option pins, you may
connect to the AEDS-9930 encoder ASIC using the SPI interface.
Broadcom offers a simple USB-to-SPI programming kit, together with a PC-based custom program for you to program the
desired interpolation value.
Figure 8: HEDS-9930PRGEVB USB-to-SPI Programmer Kit
Figure 9: HEDS-9930PRGEVB USB-to-SPI Programmer Kit Schematic

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
6 AEDR-9930 Gateway Programming GUI
Use the HEDS-9930PRGEVB kit together with the AEDR_9930_Gateway.exe to program the desired interpolation factor
into the encoder ASIC.
1. Download the zip file from:
https://broadcom.box.com/v/AEDR-9930-Programming-Software
2. Save the zip file into a PC local drive.
3. Unzip the AR3_AEDR-9930_Gateway programming software.zip to a local folder of choice.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
4. Select and double-click AEDR_9930_Gateway.exe file.
When the AEDR_9930_Gateway.exe program is running, the board should be detected.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
Both amber and green LEDs turn on when plugged into the USB port and the HEDS-9930PGREVB program is running.
Figure 10: LEDS Indicating Program Is Running
5. If the following message appears, check the board connections and try again.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
6. Click Read to read back the saved settings from AEDR-9930 encoder ASIC,
a. If the existing settings are read out successfully, the Interpolation Factor and Index Width settings saved message is
displayed as shown in the following example on the left.
b. If the AEDR-9930 is not connected or detected, the program terminates. Refer to the log.txt file in the same folder
to check the failure status.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
c. If a communication failure with AEDR-9930 exists, the program exits. Refer to the log.txt file in the same folder to
check on the error message.
7. Enter the interpolation factor required (1 to 1024) and index width setting. Click Program to save the settings into AEDR-
9930.
The Program DUT OK! message is displayed when the settings are saved successfully into the AEDR-9930.

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
7 Using AEDR-9930 Gateway SPI Protocol to Perform Calibration
Motor rotation with minimal speed ripple or smooth linear movement is required during calibration. This is to enable Index
signals to be automatically adjusted to obtain a good crossover.
Follow these steps:
1. Turn the motor at a constant speed of 500 rpm or linear stage reciprocal movement (stroke[50 mm/s]).
2. Click on Auto Calibration.
3. When the calibration is in progress, Calibrating will be shown in next to Status.
4. The calibration status will indicate Auto Cal Done if the calibration is successfully completed. Otherwise, it will indicate
Error.
Figure 11: Samples of Screen Capture from AEDR-9930 Gateway Program to Perform Calibration

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HEDS-9930PRGEVB User Guide Evaluation Board and Programming Kit
Revision History
Version 1.0, March 4, 2022
Initial document release.