applytablebinitcmdfile.tci

使用CCS信息DSP编程,适用于6713B的启动程序。

/**
 *  ======== applyTableBinitCmdFile.tci ========
 *
 *  The function modifies a generated DSP/BIOS *cfg.cmd file
 *  to append the new table() operator for bootloading a BIOS application
 *  
 *  The function works around a limitation in DSP/BIOS 5.1 or lower,
 *  in that the configuration (gconf/tconf) does have table()
 *  capabilities -- it only supports LOAD, RUN addresses in the *cfg.cmd file.
 *
 *  The fxn takes an input *cfg.cmd file and creates
 *  a new/existing command file with table(binit) appended to sections
 *  that have different load/run addresses.
 *
 *  The user specifies the string to append. This flexibility allows for
 *  potential future changes in syntax with new CG tools.
 *
 *  Call the function as follows:
 *
 *  ti_tcapps_utils.applyTableBinitCmdFile ("myappcfg.cmd", "newcfg.cmd", 
 *                                     ", table(BINIT)" );
 *
 *  This is a snippet of the DSP/BIOS generated linker command file,
 *
 *      Before the function call
 *          .bios:    {} load > FLASHREST, run > IRAM
 *
 *      After the function call
 *          .bios:    {} load > FLASHREST, run > IRAM, table(BINIT)
 *
 *  Constraints: 1. The function assumes the following pattern " } > " to
 *                  indicate the end of memory section delimiter.
 *               2. You need at least Codegen 5.0 on C6000 to leverage this
 *                  function since it uses the new linker table() operator.
 *
 *
 *  @params inFile - DSP/BIOS generated linker command file
 *
 *  @params outFile - New generated DSP/BIOS linker command file
 *
 *  @params tableBinitString - String to append to Load/Run sections
 *
 *  @return outFile - New generated DSP/BIOS linker command file or null if
 *                    no new file is generated
 *
 */

ti_tcapps_utils.applyTableBinitCmdFile = function (inFile, outFile, tableBinitString)
{
    var startPattern = new RegExp("load"      // look for string 'load'
								+ "\\s*"      // look for zero or more spaces
								+ ">"         // look for memory assignment operator
								, "i");       // case-insensitive
    var endPattern = new RegExp("run"         // look for string 'run'
								+ "\\s*"      // look for zero or more spaces
								+ ">"         // look for memory assignment operator
								, "i");       // case-insensitive
    var outputline = "";
    var flag = 0;
    var nextline;

    if ( (inFile == null) || (outFile == null) || (tableBinitString == null) ) {
        print ("Please enter correct params for applyTableBinitCmdFile fxn");
        return(null);
    }

    /* Open input file */
    var srcFile = new java.io.BufferedReader(new java.io.FileReader(inFile));

    /* Read input file line until EOF */
    while ((nextline = srcFile.readLine()) != null) {

        /* 
         * Convert the Java object to a JavaScript string to call the
         * JavaScript String.match and String.replace functions
         */
        nextline = String(nextline);

        /* Check to see if memory section has been found */
        if (nextline.match(startPattern) != null) {

            /* Section found set flag */
            flag = 1;

            /* Read and write until end of memory section found */
            while (nextline.match(endPattern) == null) {
                outputline += nextline + "\n";
                nextline = String(srcFile.readLine());
            }

            /* Found both patterns : append the user's string for table() */
            nextline = nextline + tableBinitString;
        }
        outputline += nextline + "\n";
    }

    /* Close source file */
    srcFile.close();

    /* Check if both load & run patterns were found */
    if (flag == 0) {
        print("Load/run sections don't exist in this linker command file");
        return(null);
    }

    /* Open output file */
    var dstFile = new java.io.FileWriter(outFile);

    /* Write outputline to file and close file */
    dstFile.write(outputline);
    dstFile.close();

    return (outFile);
}

/*!  Revision History
 *!  ================
 *!  18-Jun-2004  alancam    Created
 *!*/