LTC1407 LINER [Linear Technology], LTC1407 Datasheet - Page 18

• Manufacturer Part Number: LTC1407
• Description: Serial 12-Bit/14-Bit, 3Msps Simultaneous Sampling Simultaneous Sampling
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
LTC1407/LTC1407A
; 08-21-03 ******************************************************************
; Files: 1407ASIAB.ASM -> 1407A Sine wave collection with Serial Port interface
;
;
;
; unipolar mode
; Works 16 or 64 clock frames.
; negative edge BCLKR
; negative BFSR pulse
; -0 data shifted
; 1' cable from counter to CONV at DUT
; 2' cable from counter to CLK at DUT
; ***************************************************************************
start:
sinepeek:
wait
;
breceive:
18
————————Buffered Receive Interrupt Routine -————————-
.text
tim=#0fh
prd=#0fh
tcr = #10h
tspc = #0h
pmst = #01a0h
sp = #0700h
dp = #0
ar2 = #1800h
ar3 = #0800h
ar4 = #0h
call sineinit
call sineinit
goto
ifr = #10h
TC = bitf(@BSPCE,#4000h) ; check which half (bspce(bit14)) of buffer
if (NTC) goto bufull
bspce = #(2023h + 08000h); turn on halt for second half (bspce(bit15))
return_enable
bvectors.asm
s2k14ini.asm
.width
.length
.title “sineb0 BSP in auto buffer mode”
.mmregs
.setsect “.text”,
.setsect “vectors”, 0x180,0
.setsect “buffer”,
.setsect “result”, 0x1800,0
wait
U
160
110
U
both channels collected in sequence in the same 2k record
;this label seems necessary
;Make sure /PWRDWN is low at J1-9
;to turn off AC01 adc
; stop timer
; stop TDM serial port to AC01
; set up iptr. Processor Mode STatus register
; init stack pointer.
; data page
; pointer to computed receive buffer.
; pointer to Buffered Serial Port receive buffer
; reset record counter
; or more after the port comes out of reset.
; Double clutch the initialization to insure a proper
; reset. The external frame sync must occur 2.5 clocks
buffered mode.
2k buffer size.
W
0x500,0
0x800,0
; clear interrupt flags
; if this still the first half get next half
U
;Set address of executable
;Set address of incoming 1407A data
;Set address of BSP buffer for clearing
;Set address of result for clearing
;.text marks start of code
1407f