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): 14/16頁
文件大?。?/td> 399K
代理商: TLV5613(中文)
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;T0_isr: will be called on every timer interrupt.
;fetches a new 16 bit value from program memory space and writes it
;to the DAC. If end of table is reached, sets DPTR to table start addr.
;
T0_isr:
MOV R0, #003h
;select DAC control register
MOV A, #001h
;RLDAC=0, PWD=0, SPD=1
;no DAC update, normal operation, fast mode
MOVX @R0, A
;write Accu to DAC control register
MOV R0, #001h
;select DAC MSW register
CLR A
MOVC A, @A+DPTR
;get MSW from code memory
MOVX @R0, A
;write Accu to DAC MSW register
INC DPTR
;set DPTR to LSW data
MOV R0, #000h
;select DAC LSW register
CLR A
MOVC A, @A+DPTR
;get LSW from code memory
MOVX @R0, A
;write Accu to DAC LSW register
MOV R0, #003h
;select DAC control register (to update DAC)
MOV A, #005h
;DAC update, normal operation, fast mode
MOVX @R0, A
;write Accu to DAC control register
INC DPTR
;set DPTR to next MSW
;test end of table
MOV A, DPL
CJNE A, #TABLE_END_L, T0_isr_end
MOV A, DPH
CJNE A, #TABLE_END_H, T0_isr_end
MOV DPTR, #TABLE_START ;end of table reached > start again
T0_isr_end: RETI
END
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