參數(shù)資料
型號: AP77016-B06
元件分類: Codec
英文描述: USAP77016-B06 AMR Speech Codec Middleware | User's Manual[06/2002]
中文描述: USAP77016 - B06 AMR語音編解碼中間件|用戶手冊[06/2002]
文件頁數(shù): 35/47頁
文件大?。?/td> 291K
代理商: AP77016-B06
CHAPTER 4 SYSTEM EXAMPLE
User’s Manual U15152EJ2V0UM
35
Preparation
local data
local size
; Compressed data storage variable
; AAC file size (bytes)
set DEBUG_ID = 1
open input "L144100.dat"
set size = 65446
; select target
; File name of AAC file converted to text data
; AAC file size (size of binary file in bytes)
Input processing
(1/2)
set pin hcs = 1
set pin hwr = 1
set pin hrd = 1
; terminate any write access, which might
; be active
;
; send AAC file size
wait cond pin hwe == 0
wait cond pin hcs == 1
set pin hcs = 0
set port ha = 0
set pin hwr = 0
set port hd = (size>>16)&0xFF ; input low byte to host port
wait 100ns
set pin hwr = 1
set pin hcs = 1
wait 5ns
set port ha = 1
wait 5ns
set pin hcs = 0
set pin hwr = 0
set port hd = (size>>24)&0xFF ; input high byte to host port
wait 100ns
set pin hwr = 1
set pin hcs = 1
; wait till write is allowed
; and no read is in progress
; perform the access...
; select higher byte of HDT
; start input
; access duration
; end output
; terminate first access...
; delay
; select higher byte of HDT
; delay
; performe second access...
; start output
; access duration
; end input
; end access
wait 1
;
wait cond pin hwe == 0
wait cond pin hcs == 1
set pin hcs = 0
set port ha = 0
set pin hwr = 0
set port hd = (size>>0)&0xFF ; input low byte to host port
wait 100ns
set pin hcs = 1
set pin hwr = 1
wait 5ns
set port ha = 1
wait 5ns
set pin hcs = 0
set pin hwr = 0
set port hd = (size>>8)&0xFF ; input high byte to host port
wait 100ns
; wait till write is allowed
; and no read is in progress
; perform the access...
; select higher byte of HDT
; start input
; access duration
; terminate first access...
; end output
; delay
; select higher byte of HDT
; delay
; performe second access...
; start output
; access duration
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