Yamaha DA824 Service Manual page 32

FLASH ROM UPGRADE
The DA824 is equipped with flash memory (MAIN:IC919).
The software in the flash memory can be upgraded from the
COM terminal. Upgrades can also be performed from a
Windows PC using the dedicated software.
When the power is turned on, a check is made to confirm
that the system program is in the flash memory. If the
proper system is present, it is executed. If the program is
not present, or if there is an error, the program boot mode is
entered automatically.
* Warning*
When the inspection is jig inserted in the slot, the
program cannot be loaded. Check that the
inspection jig has been removed from the slot
before performing the upgrade.
1. Connection
Connect the PC and DA824 COM terminals by Dsub 9 pin
serial cross cables.
COM
PC
2. Software
LoadDA824/V1.0 is used as the software. When the folder is
open, three files are displayed on the screen: LoadDA824.exe,
TimeStamp.exe and 02rv2.dll. The two files requiring an
upgrade are LoadDA824.exe and 02rv2.dll.
2-1. Start the software
Click on LoadDA824.exe. The program will start and the
following screen will be displayed. (The dialog box can be
used to switch the COM terminal connection.)
DA824
2-2. Connection with DA824
Click the [Connect] switch and the DA824 program is loaded.
The commands are sent and if the connection is successful,
the following message will appear. Click "OK" and LOCK
LED and POWER LED on the DA824 will flash alternately.
2-3. Reading the files to be loaded
Click the [Browse] switch and the following window will
open. Designate the files to be loaded to the DA824 and click
the [Open] switch.
2-4. Loading the program
Click the [Load] switch and the program will start to load.
When completed, the following message will be displayed.
Moreover, [Dev1] is placed in the upper center of the dialog
box.
2-5. Others
Click the [Disconnect] switch to reset the DA824 to the
regular mode.
DA824
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