Philips DVDR9000H/75 Service Manual page 25

Hdd & dvd recorder
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Firmware Upgrading & Diagnostic Software
DS_NVRAM_Clear
Nucleus Name
Nucleus Number
302
Description
Make the EEPROM empty, containing all zeroes.
Technical
-
-
-
-
-
-
Important note:
The Hardware Diversity Information and
(IEE1394-specific) of the Digital Video processing part is NOT cleared by this
nucleus!
Execution Time
16 seconds
User Input
None
Error
Number
30200
30201
30202
DS:> 302
Example
030200:
Test OK @
DS_NVRAM_Modify
Nucleus Name
Nucleus Number
303
Description
Modifies one or more locations in NVRAM and updates the checksum of the
section modified
Technical
-
-
-
-
-
Execution Time
Less than 1 second
User Input
1.
2.
Error
Number
30300
30301
30302
30303
30304
30305
30306
30307
30308
30309
30310
DS:> 303 DIAGNOSTICS 5 1 0x5a
Example
030300: Section is modified successfully
Test OK @
Initialise IIC
If no IIC EEPROM was found then initialise flash memory to use NVM
pages
Read the DVID and diversity string from NVM (either EEPROM or Flash)
Create a memory block filled with zeroes
Write this block to the NVRAM (either EEPROM or Flash)
Write back the Read the DVID and diversity string to NVM (either
EEPROM or Flash)
Description
The clearing of the NVRAM succeeded
There was an IIC error
Clearing the NVRAM failed
Initialise IIC
If no IIC EEPROM was found then initialise flash memory to use NVM
pages
Decode user input
Modify the NVRAM as indicated
Validate the NVRAM by calculating the checksum and storing it
The location that must be modified
i.e. "ALL" "BOOT" "DIAGNOSTICS" "DOWNLOAD" "CONFIG"
"RECORDER" or no string if an offset from the base address of the
NVRAM is required
The offset and data which to put on the selected location
<offset> <length> <data>
Description
Modifying the NVRAM contents succeeded
Unable to initialise NVM
Modifying the NVRAM contents failed
length out of range
unable to decode length
offset out of range
unable to decode offset
unknown location specified
no location is specified
number of values incorrect
There was an IIC error
3139 785 31681
unique identification number
5.
EN 25

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