詢問一下C2H的錯誤訊息意思

static314

以下是我執行NIOS II執行C2H的ERROR訊息..
我只有把synth_full改C2H執行..

# Y7 \( b* A7 I( S8 m8 ^===========================================================================================
" N! c  C* P, X+ C. A3 Q1 d
# 2009.07.01 21.36.09 (*) Running Generator Program for accelerator_DE2_70_SD_Card_Audio_Player_synth_full
( n( J) R/ m5 D1 L) j5 A0 Fidentified subroutine named mad_synth_init
identified subroutine named mad_synth_mute
identified subroutine named dct32
# P  E# z, T* s1 f7 t9 U7 ^$ d# U/ P  q2 Iidentified subroutine named synth_full
identified subroutine named synth_half
8 t3 l8 s7 h/ J& L5 V' iidentified subroutine named mad_synth_frame
making hdl for subroutine named synth_full
synth_full calls dct32
5 w* d1 q5 ~# {! f: a3 R; mmaking hdl for subroutine named dct32

ERROR:
( u4 q7 j; R4 Y6 N$ N8 {C2H:217: C2H ERROR: dct32::symbol underscorebuiltin_custom_inii_function_dereference0 not known to parent (c_bare_block=HASH(0x454ef58))
at file: , line: 217

Accelerator module generation failed.

===========================================================================================

請問一下各位大大...
( M- S* b: s: e$ q3 c上面的錯誤訊息是什麼意思呀!?
( ]* t; G1 A0 `7 |synth_full calls dct32 意思是說有呼叫到dct32..
) h" ~/ |" P( ~2 O1 y: B所以要把dct32也用成C2H嗎..
4 y" ?) T% \& Z3 F, d我把dct32也用成C2H後這行就不見了..
6 |7 @5 @$ k# _6 d* _+ L; U- s, i但是其他都還在捏 >"<
還有以下這些是要幹嘛的？
只是說這一個C檔裡有這些副函式而已嗎??
還是有關C2H不能編譯過的關鍵呢？
- D& p& H: O/ P( f$ u+ O5 {' y5 p" s8 yidentified subroutine named mad_synth_init
2 h; l! `3 s$ `5 ]identified subroutine named mad_synth_mute
) ~! \3 M4 Y8 T# Jidentified subroutine named dct32
identified subroutine named synth_full
9 S  I& _7 _% ]+ Z7 hidentified subroutine named synth_half
identified subroutine named mad_synth_frame
5 V: d4 g  F, H$ x5 Q==========================================================================
8 x( v: ?* d9 Z: y8 u最後這行我覺得應該是C2H不能成功的最大問題！
) }# E3 b& ^7 e0 \making hdl for subroutine named dct32
2 \! ?8 }; A! W0 {* Y% J5 E這問是什麼意思呢？
是因為哪裡沒有用好導致C2H不能成功呀!?
卡好多天了..一直找不到相關的資料
請各位大大幫忙一下呀~~
非常感謝喔