參數(shù)資料
型號: AN2635
廠商: 飛思卡爾半導(dǎo)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): 19/36頁
文件大小: 150K
代理商: AN2635
On-Chip Routines Flowcharts
On-Chip FLASH Programming Routines, Rev. 4
Freescale Semiconductor
19
Figure 4. RDVRRNG Routine
RDVRRNG
CALCULATE TOTAL BYTE NUMBER
TO BE READ
STORE TOTAL BYTE NUMBER AT
RESULT AND BYTE COUNTER (STACK)
SERVICE COP
READ FLASH DATA AT H:X
INITIALIZED A = $00
DECREMENT RESULT
REPLACE DATA ARRAY
WITH FLASH READ DATA
RTS
YES
NO
DATA ARRAY DATA =
FLASH READ DATA
ACCUMULATE CHECKSUM
H:X = H:X + 1
DECREMENT BYTE
COUNTER = 0
CALL PutByte ROUTINE
TO SEND DATA TO HOST
NO
YES
NO
YES
RESULT = 0
CLEAR C BIT
SET C BIT
A = TOTAL CHECKSUM
VERIFY
PASS
VERIFY
FAIL
NO
YES
ReadData:
NoDataMatch:
Checksum:
Serial:
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