參數(shù)資料
型號(hào): LTC1402CGN
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: Serial 12-Bit, 2.2Msps Sampling ADC with Shutdown
中文描述: 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封裝: 0.150 INCH, PLASTIC, SSOP-16
文件頁(yè)數(shù): 19/20頁(yè)
文件大?。?/td> 251K
代理商: LTC1402CGN
19
LTC1402
RCVbufAddr
RCVbufSize
*
*
*
**********************************************************************
.eval ((Loopback >> 1)|((Format & 2)<<1)|(BurstMode <<3)|(IntCLK <<4)|(IntSync <<5)) ,SPCval
.eval ((CLKDIV)|(FS_polarity <<5)|(CLK_polarity<<6)|((Format & 1)<<7)|(Frame_ignore<<8)|(PCM_Mode<<9)), SPCEval
.eval (SPCEval|(XMTautobuf<<10)|(XMThalt<<12)|(RCVautobuf<<13)|(RCVhalt<<15)), SPCEval
sineinit:
bspc = #SPCval
; places buffered serial port in reset
ifr = #10h
; clear interrupt flags
imr = #210h
; Enable HPINT,enable BRINT0
intm = 0
; all unmasked interrupts are enabled.
bspce = #SPCEval
; programs BSPCE and ABU
axr = #XMTbufAddr
; initializes transmit buffer start address
bkx = #XMTbufSize
; initializes transmit buffer size
arr = #RCVbufAddr
; initializes receive buffer start address
bkr = #RCVbufSize
; initializes receive buffer size
bspc = #(SPCval | GO)
; bring buffered serial port out of reset
return
;for transmit and receive because GO=0xC0
.space 16*32
;clear a chunk at the end to mark the end
;======================================================================
;
; VECTORS
;
;======================================================================
.sect “vectors”
;The vectors start here
;get BSP vectors
; ***************************************************************************
;
Vector Table for the ‘C54x DSKplus
;
BSP vectors and Debugger vectors
;
TDM vectors just return
; ***************************************************************************
; The vectors in this table can be configured for processing external and
; internal software interrupts. The DSKplus debugger uses four interrupt
; vectors. These are RESET, TRAP2, INT2, and HPIINT.
; * DO NOT MODIFY THESE FOUR VECTORS IF YOU PLAN TO USE THE DEBUGGER *
;
; All other vector locations are free to use. When programming always be sure
; the HPIINT bit is unmasked (IMR=200h) to allow the communications kernel and
; host PC interact. INT2 should normally be masked (IMR(bit 2) = 0) so that the
; DSP will not interrupt itself during a HINT. HINT is tied to INT2 externally.
;
;
;
.mmregs
reset goto #80h
;00; RESET * DO NOT MODIFY IF USING DEBUGGER *
nop
nop
nmi return_enable
;04; non-maskable external interrupt
nop
nop
nop
trap2 goto #88h
;08; trap2 * DO NOT MODIFY IF USING DEBUGGER *
nop
nop
.space 52*16
;0C-3F: vectors for software interrupts 18-30
int0
return_enable
;40; external interrupt int0
nop
nop
nop
int1 return_enable
;44; external interrupt int1
nop
nop
nop
int2 return_enable
;48; external interrupt int2
nop
nop
nop
.set 0x800
.set 0x800
;(address of receive buffer)
;(length of receive buffer)works up to 800
APPLICATIO
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