参数资料
型号: ST10F269Z2Q3
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
封装: 28 X 28 MM, PLASTIC, QFP-144
文件页数: 82/160页
文件大小: 1541K
代理商: ST10F269Z2Q3
ST10F269
28/160
POP
DPP0
;restore DPP0: following addressing to the Flash
;will use EXTended instructions
;R11 contains the segment to be programmed
;R12 contains the segment offset address to be
;programmed
;R13 contains the data to be programmed
EXTS
R11, #1
;use EXTended addressing for next MOV instruction
MOV
[R12], R13
;command cycle 4: the EPC starts execution of
;Programming Command
Data_Polling:
EXTS
R11, #1
;use EXTended addressing for next MOV instruction
MOV
R7, [R12]
;read Flash Status register (FSB) in R7
MOV
R6, R7
;save it in R6 register
;Check if FSB.7 = Data.7 (i.e. R7.7 = R13.7)
XOR
R7, R13
JNB
R7.7, Prog_OK
;Check if FSB.5 = 1 (Programming Error)
JNB
R6.5, Data_Polling
;Programming Error: verify is Flash programmed
;data is OK
EXTS
R11, #1
;use EXTended addressing for next MOV instruction
MOV
R7, [R12]
;read Flash Status register (FSB) in R7
;Check if FSB.7 = Data.7
XOR
R7, R13
JNB
R7.7, Prog_OK
;Programming failed: Flash remains in Write
;Operation.
;To go back to normal Read operations, a Read/Reset
;command
;must be performed
Prog_Error:
MOV
R7, #0F0h
;load register R7 with Read/Reset command
EXTS
R11, #1
;use EXTended addressing for next MOV instruction
MOV
[R12], R7
;address is don’t care for Read/Reset command
...
;here place specific Error handling code
...
;When programming operation finished succesfully,
;Flash is set back automatically to normal Read Mode
Prog_OK:
....
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