參數(shù)資料
型號(hào): TLV5613(中文)
廠商: Texas Instruments, Inc.
英文描述: 2.7V TO 5.5V 12-Bit Parallel DAC With Power Down(具有掉電功能的2.7V至5.5V,12位并行DAC)
中文描述: 2.7V至5.5V 12位并行DAC,具有掉電(具有掉電功能的為2.7V至5.5V的12位并行援會(huì))
文件頁數(shù): 13/16頁
文件大?。?/td> 399K
代理商: TLV5613(中文)
==1999-3-16==
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==16-13==
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(86) (027
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(86) (027) 87491166, 87493497
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;************************************************************************
;* Title : Waveform generation with TLV5613 *
;* Version: 1.0 *
;* MCU : Intel MCS 251, MCS 51 *
;* 1998 Texas Instruments Inc. *
;************************************************************************
TABLE_START EQU 01000h
;start address of waveform data
TABLE_END_H EQU 013h
;high byte end address of waveform data
TABLE_END_L EQU 0E8h
;low byte end address of waveform data
RELOAD
EQU 0FCh
;timer reload value
ORG 00000h
;entry point
JMP main
;jump to main program
ORG 0000bh
;timer0 (T0) interrupt vector
JMP T0_isr
;jump to T0 interrupt service routine
;
;main: setup timer and interrupt, loop forever
;
main:
CLR A
MOV A, IE0
;disable all interrupts
CLR TCON.4
;stop T0
MOV A, #002h
MOV TMOD, A
;set T0 to auto reload mode
MOV A, #RELOAD
MOV TH0, A
;set T0 reload value
MOV TL0, A
;set T0 start value
MOV P2, #080h
;set A15 of address bus to select DAC
MOV DPTR, #TABLE_START ;set data pointer to start of wave form data
SETB IE0.1
;enable T0 interrupt
SETB IE0.7
;enable interrupts
SETB TCON.4
;start T0
idle_loop:
SJMP idle_loop
;loop forever
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