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參數(shù)資料
| 型號： | TLV5614IYZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 9 us SETTLING TIME, 12-BIT DAC, UUC16 |
| 封裝： | GREEN, DIE-16 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大小： | 500K |
| 代理商： | TLV5614IYZR |
www.ti.com
SBAS401 – DECEMBER 2006
ANL A,#03FH ; wrap back round to 0 if > 64
MOV rolling_ptr,A ; store in memory again
D_LSB_TX:
JNB TI,D_LSB_TX ; wait for DAC D lsb transmit to complete
CLR TI ; clear for next transmit
SETB T1 ; FS high
SETB T0 ; CS high
POP ACC
POP PSW
RETI
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Stack needs definition
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
RSEG STACK
DS 10h ; 16 Byte Stack!
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Main program code
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
RSEG MAIN
start:
MOV SP,#STACK–1 ; first set Stack Pointer
CLR A
MOV SCON,A ; set serial port 0 to mode 0
MOV TMOD,#02H ; set timer 0 to mode 2 - auto-reload
MOV TH0,#038H ; set TH0 for 5kHs interrupts
SETB INT1 ; set LDAC = 1
SETB T1 ; set FS = 1
SETB T0 ; set CS = 1
SETB ET0 ; enable timer 0 interrupts
SETB EA ; enable all interrupts
MOV rolling_ptr,A ; set rolling pointer to 0
SETB TR0 ; start timer 0
always:
SJMP always ; while(1) !
RET
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Table of 32 sine wave samples used as DAC data
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
RSEG SINTBL
sinevals:
DW 01000H
DW 0903EH
DW 05097H
DW 0305CH
DW 0B086H
DW 070CAH
DW 0F0E0H
DW 0F06EH
DW 0F039H
DW 0F06EH
DW 0F0E0H
DW 070CAH
DW 0B086H
DW 0305CH
DW 05097H
DW 0903EH
DW 01000H
DW 06021H
DW 0A0E8H
DW 0C063H
DW 040F9H
DW 080B5H
DW 0009FH
DW 00051H
DW 00026H
DW 00051H
DW 0009FH
DW 080B5H
DW 040F9H
DW 0C063H
DW 0A0E8H
DW 06021H
20
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