© 2009 MIMAKI ENGINEERING CO.,LTD.
5.1.20
P.1
R.1.0
Maintenance Manual > Test Items > Test Function > MEMORY CHECK
Model CJV30/TPC Issued 2008.08.04 Revised
F/W ver. 1.00 Remark
1.0
5.1.20 MEMORY CHECK
Function
Variety of memory of the device is checked.
The memory check requires the following time. (1 count)
MAIN.SDRAM
: Approx. 12 min.
MAIN.F-ROM
: 1 Sec.
HEAD.EEPROM
: Approx. 22 sec.
32M SDRAM
: Approx. 120 sec.
List of memory checks
Note: No. of counts is displayed during the check.
*1: When data does not agree, the check process is discontinued and memory address, write/read data at occurrence of the error
are displayed.
*2: As sector 1 – 10 used by parameter are passed, SUM value is not 0.
Item
Description
MAIN.SDRAM*
1
Read/Write check of SDRAM
Select insert/not insert of wait time (30sec) between write and read of the data.
In the checking, the following process is counted as 1 and is repeated until [END] is input.
1. Write 00000000h onto all area of SDRAM starting from address 0.
2. Read vacant data starting from address 0 to all area of SDRAM sequentially to confirm that the
readings meet the writing data.
3. Write FFFFFFFFh onto all area of SDRAM starting from address 0.
4. Read vacant data from address 0 to all area of SDRAM sequentially to confirm that the readings
meet the writing data.
5. Write increment data of 00010203h, 04050607h, ... FCFDFE00h onto all area of SDRAM starting
from address 0.
6. Read vacant data from address 0 to all area of SDRAM sequentially to confirm that the readings
meet the writing data.
MAIN.F-ROM
Hash check of F-ROM.
In the checking, confirm that long ward size SUM value from address 0 of F-ROM is 0001f000H*
2
,
that is counted as 1, and repeat the process until [END] is input.
If the SUM value is not 0001f000H, the check process is discontinued and an error is displayed.
HEAD.EEPROM*
1
Read/Write check of HEAD.EEPROM
Select a head unit to be checked.
Before starting the checking, save contents of EEPROM in S-RAM (head unit parameter area).
In the checking, the following process is counted as 1 and is repeated until [END] is input.
1. Write 00h onto HEAD.EEPROM starting from address 0 to confirm that read value is 00h
2. Write FFh onto HEAD.EEPROM starting from address 0 to confirm that read value is FFh.
3. Write increment data of 00h, 01h, 02h, ..., FDh, FEh, 00h, ... onto HEAD.EEPROM starting
address 0 to confirm that read value agrees.
32M SDRAM
Checking the write/read of SDRAM for receiving the cut data.
Select insert/not insert of wait time (30sec) between write and read of the data.
In the checking, the following process is counted as 1 and is repeated until [END] is input.
1. Write 00000000h onto all area of SDRAM starting from address 0.
2. Read vacant data starting from address 0 to all area of SDRAM sequentially to confirm that the
readings meet the writing data.
3. Write FFFFFFFFh onto all area of SDRAM starting from address 0.
4. Read vacant data from address 0 to all area of SDRAM sequentially to confirm that the readings
meet the writing data.
5. Write increment data of 00010203h, 04050607h, ... FCFDFE00h onto all area of SDRAM starting
from address 0.
6. Read vacant data from address 0 to all area of SDRAM sequentially to confirm that the readings
meet the writing data.
