dsk5402_mem.tci

来自「DSP体系结构实现与应用源代码」· TCI 代码 · 共 91 行

/*
 *  Copyright 2003 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *  
 */
/* "@(#) ReferenceFrameworks 2.20.00.08 07-18-03 (swat-f02)" */
/*
 *  ======== Dsk5402_mem.tci ========
 *
 *
 *  This script simply sets up the BIOS MEM memory layout configuration
 */

/*
 *  Memory segments, their sizes, heaps, and heap sizes
 *  (EPROG is external program memory, IPROG is internal program memory,
 *   EDATA is external data memory,    IDATA is internal data memory)
 *  We split the 16K of internal RAM as 12K for data and 4K for code.
 *  In internal and external data memory, we create heaps with names 
 *  INTERNALHEAP and EXTERNALHEAP, respectively, and platform-independent
 *  portions of the application refer to these heaps by their names
 *  rather than the names of memory segments they are created in
 *  (as not all platforms have IDATA, EDATA segments).
 */

/*
 *  Call model: use "far" instead of "near"
 */
tibios.GBL.CALLMODEL = "far";


/* Enable heap creation */
bios.enableMemoryHeaps(prog);

/* define base and size of the internal data memory segment */
tibios.IDATA.base = 0x0080;
tibios.IDATA.len  = 0x2f80;
tibios.IDATA.space  = "data";

/* allocate heap named "INTERNALHEAP" of size 0x0C00 in internal memory */
tibios.IDATA.createHeap      = true;       
tibios.IDATA.heapSize        = 0x0C00;  /* 3K   */
tibios.IDATA.enableHeapLabel = true;  
tibios.IDATA.heapLabel       = prog.extern( "INTERNALHEAP" );

/* define base and size of the internal program memory segment */
tibios.IPROG.base = 0x3000;
tibios.IPROG.len  = 0x1000;
tibios.IPROG.space = "code";

/* allocate heap named "EXTERNALHEAP" of size 0x2000 in external memory */
tibios.EDATA.createHeap      = true;
tibios.EDATA.heapSize        = 0x2000;  /* 8K   */
tibios.EDATA.enableHeapLabel = true; 
tibios.EDATA.heapLabel       = prog.extern( "EXTERNALHEAP" );

/*  
 *  Set the size of the application stack. Must be large
 *  enough to accomodate worst-case of nested priorities, if any.
 */
tibios.MEM.STACKSIZE = 0x0200; 

/*
 *  Overriding default section placement
 *  assign listed sections to specified memory segments 
 */ 
/* General */
/* Set dynamic heap allocation into IDATA */
tibios.MEM.BIOSOBJSEG = tibios.IDATA;  /* Segment for DSP/BIOS Objects */
tibios.MEM.MALLOCSEG  = tibios.IDATA;  /* Segment for malloc()/free() */

/* BIOS data */
tibios.MEM.GBLINITSEG = tibios.EPROG;  /* DSP/BIOS Init Tables (.gblinit) */
tibios.MEM.TRCDATASEG = tibios.EPROG;  /* TRC Initial Value (.trcdata) */
tibios.MEM.OBJSEG     = tibios.EDATA;  /* DSP/BIOS Conf Sections (.*obj) */

/* BIOS code */
tibios.MEM.BIOSSEG    = tibios.EPROG;  /* BIOS Code Section (.bios) */
tibios.MEM.SYSINITSEG = tibios.EPROG;  /* Startup Code Section (.sysinit) */
tibios.MEM.RTDXTEXTSEG = tibios.IPROG; /* RTDX Text Segment (.rtdx_text) */

/* Compiler Sections */
tibios.MEM.TEXTSEG    = tibios.EPROG; /* Text Section (.text) */
tibios.MEM.CINITSEG   = tibios.EPROG; /* Data Initialization Section (.cinit) */
tibios.MEM.PINITSEG   = tibios.EPROG; /* C Function Initialization (.pinit) */
tibios.MEM.CONSTSEG   = tibios.EDATA; /* Constant Section (.const) */