Yamaha AD824, Service Manual

Page: 43 / 80

AD824
43
FLASH ROM UPGRADE
The AD824 is equipped with flash memory (MAIN: IC927).
The software in the flash memory can be upgraded from the
COM PC/RS422 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*
The program cannot be loaded while the turning
jig is attached to COM RS422 terminal (CN908) and
the inspection jig is attached to the slot.
Check that has been removed befor performing the
upgrade.
1. Connection
Connect the PC and AD824 COM PC/RS422 terminals by
Dsub 9 pin serial cross cables.
A changeover switch of PC/RS422 selects PC.
In addition, if connection is made in the following manner,
upgrades can also be made to AD824 after the second unit.
Note that a condition for this is that the device number has
been set beforehand. (The software shown below is
compatible up to the fourth unit.)
2. Software
LoadAD824/V1.0 is used as the software. When the folder is
open, three files are displayed on the screen: LoadAD824.exe,
TimeStamp.exe and 02rv2.dll. The two files requiring an
upgrade are LoadAD824.exe and 02rv2.dll.
2-1. Start the software
Click on LoadAD824.exe. The program will start and the
following screen will be displayed.
It is also possible to switch the PC COM terminal that is
connected by the dialogue box in the upper right. (The figure
shows that COM1 is selected.)
In addition, when loading the program to AD824 after the
second unit, switching of the device number is done by the
dialogue box at the upper center. (The figure shows that DEV
1 is selected.)
2-2. Connection with AD824
Click the [Connect] switch and the AD824 program is loaded.
The commands are sent and if the connection is successful,
the following message will appear.
Click OK and the AD824 will display the device number and
part of the version of the current program in the 7segLED.
For example, if the device number is 1 and the program
version is 1.00, “d01” and “r1.0” will light up 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 AD824 and click
the [Open] switch.
PC
AD824
COM
PC/RS422
PC
AD824
COM
PC/RS422
COM
RS422
AD824
COM
PC/RS422
COM
RS422