Casio QT-2100 Service Manual page 44

[ 3 ] Flash ROM check sum
The check sum test for FLASH ROM is performed.
The area which can be checked is only the code area (from address of 0x8000 to little over than 2.5M).
The area range depends on the code capacity.
Operation : n 5 1
n : 0 = One time check
Not 0 = Continuous check (To stop the test, press "Esc" key)
[ LCD ]
FLASH 512
FLASH CHK SUN OK
END 512
Note : Displays only OK or NG, displays no address
Do not perform the Flash clear test before this test.
[ 4 ] Flash clear & write/ read test
The CLEAR & WRITE/READ test for FLASH MEMORY is performed.
After deleting the memory by CLEAR, WRITE/READ test is performed.
NOTE: IPL becomes necessary again after the test since this test cannot make a backup copy of the
program.
The program is also deleted if the memory inside the FLASH is deleted by the CLEAR test.
Operation : n 6 1
n : 0 = One time check
Not 0 = Continuous check (To stop the test, press "Esc" key)
The counter is displayed which indicates that the FLASH test is in progress.
[ LCD ]
FLASH 612
FLASH CLR&WR OK
END 612
NOTE: NG and the address are displayed if WRITE cannot be done normally.
NG and the address are printed if WRITE cannot be done normally.
2 SUBTOTAL
FLASH
FLASH CHK SUN OK
END
2 SUBTOTAL
FLASH
FLASH CLR&WR
END
— 42 —
[ PRINT ]
512
512
[ PRINT ]
612
OK
612