Philips HDRW720 Service Manual page 49

Description Check all data lines and address lines of the SDRAM
User Input None
Example DS:> 401
040100:
Test OK @
Nucleus Name DS_SDRAM_Write
Nucleus Number 402
Description Write to a specific memory address
User Input 1.
( SDRAM starts at address 0xA0000000 )
2.
Example DS:> 402 0xa1000010 0xad112222
040200:
Test OK @
Nucleus Name DS_SDRAM_Read
Nucleus Number 403
Description Read from a specific memory address
User Input The location from which the data must be read
( SDRAM starts at address 0xA0000000 )
Example DS:> 403 0xa1000010
040300: Value read = 0xAD112222
Test OK @
FLASH
Nucleus Name DS_FLASH_DevTypeGet
Nucleus Number 500
Description Get the device (revision) type information of the FLASH IC. (manufacturer and device ID)
User Input None
Example DS:> 500
050000: Found FLASH memory:
Manufacturer ID: 0x01
Device ID
Test OK @
Nucleus Name DS_FLASH_WriteRead
Nucleus Number 501
Description Check whether the FLASH can be written to and read from
User Input None
Example DS:> 501
050100:
Test OK @
Nucleus Name DS_FLASH_Read
Nucleus Number 502
Description Read from a specific memory address in FLASH
User Input The location from which data must be read
( FLASH starts at address 0xB8000000 )
Example DS:> 502 0xb8000000
050200: Value read = 0x3C08A000
Test OK @
Nucleus Name DS_FLASH_ChecksumProgram
Nucleus Number 503
Description Check the checksum of the application partitions by recalculating and comparing partition
checksums
User Input None
Example DS:> 503
050300:
BootCode
Diagnostics checksum is : 0xBABEBAFF, which is correct
Download
Application checksum is : 0xBABE8EEC, which is correct
Test OK @
Diagnostic Software
The location that must be modified
The value to put on the selected location
: 0x01
checksum is: 0xBABE5B6F, which is correct
checksum is: 0xBABEEDBF, which is correct
HDRW720/0x, DVDR725H/0x 5. EN 49