參數(shù)資料
型號: AN2635
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: On-Chip FLASH Programming Routines
中文描述: 片上閃存編程例程
文件頁數(shù): 22/36頁
文件大?。?/td> 150K
代理商: AN2635
On-Chip FLASH Programming Routines, Rev. 4
22
Freescale Semiconductor
On-Chip Routines Flowcharts
Figure 7. ERARNGE Routine
STEP 7: CLEAR ERASE BIT
STEP 8: DELAY t
NVHL
(NOTE 1)
STEP 9: CLEAR ALL BITS IN FLCR
CALL DELNUS ROUTINE
TO MAKE ~200-
μ
s DELAY
DECREMENTED LOOP
COUNTER = 0
ERARNGE
RTS
SET I BIT
MASS BIT SETS IN
CTRLBYT
YES
STEP 2: READ FLBPR
STEP 3: WRITE ANY DATA TO
FLASH ADDRESS (H:X)
STEP 4: DELAY t
NVS
STEP 5: SET HVEN BIT
STEP 6: SET LOOP COUNTER = 20
SERVICE COP
(MASK INTERRUPTS)
NO
STEP 1: SET ERASE AND
MASS BITS
STEP 1: SET ERASE BIT
MASS ERASE
PAGE ERASE
NO
YES
STEP 10: DELAY t
RCV
ServiceCOP:
CTRLBYT = $00 OR $40
YES
NO
1. DELNUS ROUTINE IS USED
NOTE S:
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