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| 型號： | DATASHEET |
| 英文描述： | ST10F168 - 16-BIT MCU - 8KB RAM - 256KB FLASH MEMORY - 111 I/O - 1 CAN 2.0B INTERFACE |
| 中文描述： | ST10F168 - 16位MCU - 8KB的內(nèi)存- 256KB的快閃記憶體- 111的I / O - 1 CAN 2.0B總線接口 |
| 文件頁數(shù)： | 17/74頁 |
| 文件大小： | 897K |
| 代理商： | DATASHEET |
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ST10F168
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Programming a block of data
The following code is provided as an example to program a block of data. Flash to be programmed is from
address 01’9000h to 01’9FFEh (included). Source data (data to be copied into flash) is located in external
RAM from address 05’1000h (to 05’1FFEh, implicitly) :
; code shown below assumes that flash is mapped in segment 1
; ie. bit ROMS1 = ‘1’ in SYSCON register
; Flash must be enabled, ie. bit ROMEN = ‘1’ in SYSCON.
MOV
OR
R0, #0AA50h
R0, #01h
; AA5xh : Multi Word programming command
; Selects segment 1 in Flash memory
MOV
MOV
R1, #09000h
R2, #09FFEh
; First Flash Segment Offset Address
; Last Flash Segment Offset Address
MOV
R3, #09000h
; Source data address: use DPP2 as
; data page pointer
SCXT
DPP2,#20d
; Source is in page 20 (first page of
; segment 5): save previous DPP2 value
; and load it with source page number
; 50ns is 20MHz CPU clock frequency
MOV
R4, #050d
MOV
#define FCR 08000h
R7, #08000h
; R7 used for Flash trigger sequence
EXTS
MOV
#1, #2
FCR, R7
; Flash can be mapped in segment 0 or 1
; first part
MOV
NOP
[R7], R7
; second part
; WARNING: place 2 NOP operations after
NOP
; the Unlock sequence to avoid all possible
; pipeline conflicts in STEAK programs
POP
DPP2
; restore DPP2
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