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參數(shù)資料
| 型號： | TLV5614(中文) |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7V to 5.5V 12-Bit 3us Quadruple Digital-to-Analog Converters With Power Down(具有掉電功能的2.7V至5.5V,12位,3微秒,四路DAC) |
| 中文描述： | 2.7V至5.5V 12位3us四倍數(shù)字模擬轉(zhuǎn)換器由于斷電（具有掉電功能的為2.7V至5.5V之間，12位，3微秒，四路援會） |
| 文件頁數(shù)： | 18/20頁 |
| 文件大?。?/td> | 529K |
| 代理商： | TLV5614(中文) |
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CLR
MOV
T1
SBUF,A
; transmit it set FS low
; send it out the serial port
INC
MOV
MOVC
A_MSB_TX:
JNB
CLR
MOV
R7
A,R7
A,@A+DPTR
; increment the pointer in R7
; to get the next byte from the table
; which is the lsb of this sample, now in ACC
TI,A_MSB_TX
TI
SBUF,A
; wait for transmit to complete
; clear for new transmit
; and send out the lsb of DAC A
; DAC C next
; DAC C codes should be taken from 16 bytes (8 samples) further on
; in the sine table this gives a cosine function
MOV
A,R7
; pointer in R7
ADD
A,#0FH
; add 15 already done one INC
ANL
A,#03FH
; wrap back round to 0 if > 64
MOV
R7,A
; pointer back in R7
MOVC
ORL
A,@A+DPTR
A,#01H
; get DAC C msb from the table
; set control bits to DAC C address
A_LSB_TX:
JNB
SETB
CLRT1
CLR
MOV
INC
MOV
MOVC
C_MSB_TX:
JNB
CLR
MOV
TI,A_LSB_TX
T1
; wait for DAC A lsb transmit to complete
; toggle FS
TI
SBUF,A
R7
A,R7
A,@A+DPTR
; clear for new transmit
; and send out the msb of DAC C
; increment the pointer in R7
; to get the next byte from the table
; which is the lsb of this sample, now in ACC
TI,C_MSB_TX
TI
SBUF,A
; wait for transmit to complete
; clear for new transmit
; and send out the lsb of DAC C
; DAC B next
; DAC B codes should be taken from 16 bytes (8 samples) further on
; in the sine table this gives an inverted sine function
MOV
A,R7
; pointer in R7
ADD
A,#0FH
; add 15 already done one INC
ANL
A,#03FH
; wrap back round to 0 if > 64
MOV
R7,A
; pointer back in R7
MOVC
ORL
A,@A+DPTR
A,#02H
; get DAC B msb from the table
; set control bits to DAC B address
C_LSB_TX:
JNB
SETB
CLR
CLR
MOV
TI,C_LSB_TX
T1
T1
TI
SBUF,A
; wait for DAC C lsb transmit to complete
; toggle FS
; clear for new transmit
; and send out the msb of DAC B
; get DAC B LSB
INC
R7
MOV
A,R7
MOVC
A,@A+DPTR
; increment the pointer in R7
; to get the next byte from the table
; which is the lsb of this sample, now in ACC
B_MSB_TX:
JNB
CLR
MOV
TI,B_MSB_TX
TI
SBUF,A
; wait for transmit to complete
; clear for new transmit
; and send out the lsb of DAC B
; DAC D next
; DAC D codes should be taken from 16 bytes (8 samples) further on
; in the sine table this gives an inverted cosine function
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