Yamaha DRX-2 Service Manual page 27

Nucleus Name DS_SDRAM_Read
Nucleus Number 403
Description Read from a specific memory address
Technical -
-
Execution Time Less than 1 second
User Input The location from which the data must be read
( SDRAM starts at address 0xA0000000 )
Error Number
40300
40301
40302
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)
Technical -
-
-
Execution Time Less than 1 second
User Input None
Error Number
50000
50001
Example DS:> 500
050000: Found FLASH memory:
Manufacturer ID: 0x01
Device ID : 0x01
Test OK @
Nucleus Name DS_FLASH_WriteRead
Nucleus Number 501
Description Check whether the FLASH can be written to and read from
Technical -
-
-
-
Execution Time Less than 1 seconds.
User Input None
Error Number
50100
50101
50102
50103
50104
Example DS:> 501
050100:
Test OK @
Decode the user input and check the ranges
Read from the SDRAM and return this info to the user
Description
Reading from the SDRAM succeeded
Reading from the SDRAM failed; Wrong user input
Address is not dividable by 4
Set the timing for the flash writing
Write a command sequence to determine device type information
Return the information to the user
Description
Getting the information from the FLASH succeeded
Getting the information from the FLASH failed
Find the test segment in flash
Read the data into SDRAM
Modify the data
Write this data from SDRAM to FLASH and verify it by reading back again
Description
The FLASH write-read test succeeded
The test segment could not be found
All bits is the TEST region are filled with 0
The WriteRead test failed
The Write Failed
DRX-2
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