MiniDSP DDRC-88A Manuel d'utilisation et d'entretien

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DDRC-88A

MAIN BOARD FIRMWARE UPDATE PROCEDURE

NOTICE

This procedure updates the main board firmware of DDRC-88A units shipped prior to August 2016.

Do not apply this procedure unless instructed by miniDSP Support.

If you have think that you have a DDRC-88A that requires this update, contact miniDSP support to

verify before starting.

Revision history

Revision

Description

Date

1.0

Split from Legacy DDRC-88A User Manual

31 July 2020

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TABLE OF CONTENTS

1Summary....................................................................................................................................................... 3

2Main I/O board firmware update.................................................................................................................. 4

2.1Prepare for installation........................................................................................................................................4

2.2 Update the main I/O board firmware - WIndows .................................................................................................6

2.3 Update the main I/O board firmware - Mac .........................................................................................................8

2.4 Restore the connectors and close up .................................................................................................................10

2.5 Completing the upgrade....................................................................................................................................10

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1SUMMARY

The main board firmware of the DDRC-88A was updated in August 2016 to support the DDRC-88BM plugin.

Units shipped prior to that should have been updated by now. If they have not, then this document describes

the procedure.

Do not apply this procedure unless instructed by miniDSP Support.

If you have think that you have a DDRC-88A that requires this update, contact miniDSP support to verify before

starting.

To perform the upgrade, you will need to follow these steps:

1. Install the DDRC-88BM plugin, as described in the DDRC-88A User Manual.

2. Upgrade the main I/O board firmware. See Section 2 starting on page 4.

3. Upgrade the SHARC daughterboard firmware, as described in the Section “MCU Firmware update” in the

DDRC-88A User Manual.

You must update all firmware and software for the DDRC-88A to function correctly afterwards.

This applies whether or not you are using the plugin in enhanced/bass management mode. You can

not do a partial update.

If you were previously using the DDRC-88 Utility, we strongly recommend that you uninstall it

after completing the upgrade to avoid the possibility of accidentally running it and corrupting the

DSP code (which can potentially cause damage to your system).

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2MAIN I/O BOARD FIRMWARE UPDATE

The procedure described in this section is a necessary update for all DDRC-88A units loaded with main board

firmware less than Version 2.2. These units were shipped prior to August 2016.

2.1 PREPARE FOR INSTALLATION

Place the DDRC-88A on a flat level surface. Remove power and all other connections.

1. Remove the six cross-head screws (two on the rear, and two on each side on the rack ears). Hinge up the top

panel from the rear and then lift it up to remove it completely from the unit.

2. With the front panel of the DDRC-88A facing you, view the DSP daughterboard and the connecting cables.

The location of the connector that will need to be moved is indicated in this diagram and photograph:

3. Carefully unplug the connector (the one closest to the bottom of the photograph above) from the

daughterboard. Grasp it by the connector body to remove it. Do not simply pull on the wires. You may need

to wriggle it slightly to help ease it off.

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4. Reconnect the plug to the 5-pin header on the main board, labeled “J34,” below and to the right. This is

shown in the photograph below (two different views). Ensure that the five pins are correctly seated.

Note carefully the orientation of the connector: the red wire is nearest to the DSP daughterboard.

Do not force the connector. If it does not slide on with a small amount of pressure, you have not

positioned the connector correctly and will damage it if you try to force it on.

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2.2 UPDATE THE MAIN I/O BOARD FIRMWARE -WINDOWS

1. Apply power to the DDRC-88A and connect the rear panel USB port to your computer with a USB cable.

2. Navigate to the Plugins folder of the software download and then to the Windows folder.

3. Double click on the MiniDSP_8x8_IO_v2_3.exe installer and step through it.

4. The MiniDSP-8x8-IO utility will automatically run when the installer completes:

5. Click on the Connect button.

a. If your unit does not require requires a firmware upgrade, the connect button will change to a green

tick. Jump ahead to step 1.

b. If your unit does require a firmware upgrade, a warning dialog will pop up. Click OK:

c. The DDRC-88A will automatically be put into boot loader mode and the miniDSP upgrade utility will

start. The status area should display “Device attached”.

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d. Click on the Open Hex File button and select the miniDSP_2x8_8x8_v2.10_release.hex file in the

firmware folder of the download.

You must select the correct firmware file. Check the file name carefully.

e. Click on the Program/Verify button. The status bar will indicate progress. Do not disconnect the USB

cable or remove power from the processor while this runs!

f. After the status indicates that the verify has completed successfully, click on the Reset Device button,

and then quit the upgrade utility.

g. Return to the MiniDSP-8x8-IO utility. (If there is a dialog informing "Connection to DSP closed," click

on OK.) Click on the Connect button. It will change to a green tick.

1. Click on “Load Factory Default to the Board.” At the warning, click Yes.

2. When the completion message below displays, click on OK and then quit the program.

3. Click on the About button to confirm the new firmware version.

4. You can now uninstall the MiniDSP-8x8-IO program, as it is no longer needed. Use the Uninstall feature of

the Windows Control Panel.

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2.3 UPDATE THE MAIN I/O BOARD FIRMWARE -MAC

1. Apply power to the DDRC-88A and connect the rear panel USB port to your computer with a USB cable.

2. Navigate to the Plugins folder of the software download and then to the Mac folder.

3. Double-click on the MiniDSP_8x8_IO_v2_3.pkg installer program to run it.

4. The MiniDSP-8x8-IO utility will automatically run when the installer completes:

5. Click on the Connect button.

a. If your unit does not require requires a firmware upgrade, the connect button will change to a green tick.

Jump ahead to step 6.

b. If your unit does require a firmware upgrade, a warning dialog will pop up. Click OK.

c. The DDRC-88A will automatically be put into boot loader mode and the miniDSP upgrade utility will start.

The status area should display “Device attached” and then “Device Ready.”

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d. Click on the Import Firmware Image button and select the miniDSP_2x8_8x8_v2.10_release.hex file in

the firmware folder of the download.

You must select the correct firmware file. Check the file name carefully.

e. Click on the Erase/Program/Verify Device button. The status bar will indicate progress. Do not

disconnect the USB cable or remove power from the processor while this runs!

f. After the status indicates that the verify has completed successfully, click on the Reset Device button,

and then quit the upgrade utility.

g. Return to the MiniDSP-8x8-IO utility. (If there is a dialog informing "Connection to DSP closed," click on

OK.) Click on the Connect button. It will change to a green tick.

6. Click on “Load Factory Default to the Board.” At the warning, click Yes.

7. When the completion message below displays, click on OK and then quit the program.

8. Click on the About button to confirm the new firmware version.

9. You can now uninstall the MiniDSP-8x8-IO program, as it is no longer needed. Locate it in the

Applications/MiniDSP folder and drag it to the Trash.

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2.4 RESTORE THE CONNECTORS AND CLOSE UP

1. Remove power from the DDRC-88A.

2. Grasp the body of the five-pin connector and pull it straight up. Do not pull on the wires.

3. Reposition the connector as shown in the photographs below, and push it onto the five-pin header until it

has seated properly. Note carefully the orientation of the connector: the red wire is nearest to the other

connector.

4. Replace the lid and re-install the six screws.

2.5 COMPLETING THE UPGRADE

Now upgrade the SHARC daughterboard firmware, as described in the Section “MCU Firmware update” in the

DDRC-88A User Manual.

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