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AT90USB162 数据表(PDF) 24 Page - ATMEL Corporation

部件名 AT90USB162
功能描述  USB DFU Bootloader
Download  28 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT90USB162 数据表(HTML) 24 Page - ATMEL Corporation

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24
7618C–AVR–07/08
;*F************************************************************************
**
; NAME: flash_read_sig
;--------------------------------------------------------------------------
--
; PARAMS:
; Return: R16: signature value
;--------------------------------------------------------------------------
--
; PURPOSE:
Read harware signature byte. THe byte is selected trought the
addr
; passed as argument (see product data sheet)
;**************************************************************************
**
flash_read_sig:
RCALL
WAIT_SPMEN
;Wait for SPMEN flag cleared
MOV
R31,R17
MOV
R30,R16
;move adress to z pointer (R31=ZH R30=ZL)
OUT
RAMPZ, R18
LDI
R20,$21
;(1<<SPMEN) | (1<<SIGRD))
OUT SPMCSR, R20; argument 2 decides function (r18)
LPM
;Store program memory
MOV
R16, R0
;Store return value (1byte->R16 register)
RJMP
WAIT_SPMEN
;Wait for SPMEN flag cleared
;*F************************************************************************
**
; NAME: flash_read_fuse
;--------------------------------------------------------------------------
--
; Return: R16: fuse value
;--------------------------------------------------------------------------
--
; PURPOSE: Read fuse byte. The fuse byte is elected through the address
passed
; as argument (See product datasheet for addr value)
;**************************************************************************
**
flash_read_fuse:
RCALL
WAIT_SPMEN
;Wait for SPMEN flag cleared
MOV
R31,R17
MOV
R30,R16
;move adress to z pointer (R31=ZH R30=ZL)
OUT
RAMPZ, R18
LDI
R20,$09
;(1<<SPMEN) | (1<<BLBSET))
OUT SPMCSR, R20; argument 2 decides function (r18)
LPM
;Store program memory
MOV
R16, R0
;Store return value (1byte->R16 register)


类似零件编号 - AT90USB162

制造商部件名数据表功能描述
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ATMEL Corporation
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类似说明 - AT90USB162

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