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/*---------------------------------------------------------------------------- |
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* Name: DEMO.H |
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* Purpose: USB Audio Demo Definitions |
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* Version: V1.10 |
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*---------------------------------------------------------------------------- |
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* This file is part of the uVision/ARM development tools. |
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* This software may only be used under the terms of a valid, current, |
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* end user licence from KEIL for a compatible version of KEIL software |
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* development tools. Nothing else gives you the right to use it. |
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* |
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* Copyright (c) 2005-2007 Keil Software. |
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*---------------------------------------------------------------------------*/ |
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/* Clock Definitions */ |
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#define CPU_CLOCK 12000000 /* CPU Clock */ |
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#define VPB_CLOCK (CPU_CLOCK/1) /* VPB Clock */ |
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/* Audio Definitions */ |
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#define DATA_FREQ 32000 /* Audio Data Frequency */ |
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#define P_S 32 /* Packet Size */ |
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#if USB_DMA |
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#define P_C 4 /* Packet Count */ |
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#else |
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#define P_C 1 /* Packet Count */ |
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#endif |
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#define B_S (8*P_C*P_S) /* Buffer Size */ |
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/* Push Button Definitions */ |
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#define PBINT 0x00000400 /* P2.10 */ |
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/* LED Definitions */ |
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#define LEDMSK 0x000000FF /* P2.0..7 */ |
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/* Audio Demo Variables */ |
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extern BYTE Mute; /* Mute State */ |
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extern DWORD Volume; /* Volume Level */ |
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extern WORD VolCur; /* Volume Current Value */ |
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extern DWORD InfoBuf[P_C]; /* Packet Info Buffer */ |
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extern short DataBuf[B_S]; /* Data Buffer */ |
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extern WORD DataOut; /* Data Out Index */ |
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extern WORD DataIn; /* Data In Index */ |
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extern BYTE DataRun; /* Data Stream Run State */ |
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