Other Parts Discussed in Thread: SYSBIOS
F2809在按照SYS/BIOS 的user guide 创建过程中，进行到第2步时，出现了如下错误，请问该如何解决？
**** Build of configuration Debug for project task_TMS320F2809 ****
"C:\\ti\\ccsv6\\utils\\bin\\gmake" -k all
'Building file: ../mutex.cfg'
'Invoking: XDCtools'
"C:/ti/xdctools_3_32_01_22_core/xs" --xdcpath="C:/ti/bios_6_46_06_00/packages;C:/ti/ccsv6/ccs_base;" xdc.tools.configuro -o configPkg -t ti.targets.C28_float -p ti.platforms.tms320x28:TMS320F2809 -r release -c "C:/ti/ccsv6/tools/compiler/c2000_15.12.3.LTS" --compileOptions "-g --optimize_with_debug" "../mutex.cfg"
making package.mak (because of package.bld) ...
generating interfaces for package configPkg (because package/package.xdc.inc is older than package.xdc) ...
configuring mutex.x28FP from package/cfg/mutex_p28FP.cfg ...
warning: ti.platforms.tms320x28.Platform: "C:/ti/bios_6_46_06_00/packages/ti/platforms/tms320x28/Platform.xs", line 333: ti.platforms.tms320x28.Platform.Instance#0 : The PLL type is not assigned, so the Boot module will not configure the PLL.
error: ti.sysbios.BIOS: "C:/ti/bios_6_46_06_00/packages/ti/sysbios/BIOS.xs", line 236: ti.sysbios.BIOS cpuFreq.lo: BIOS.cpuFreq is undefined. You must define the CPU frequency in your application configuration. For example, if the PLL is being configured for 100MHz, add this to your application configuration script: BIOS.cpuFreq.lo = 100000000;
js: "C:/ti/xdctools_3_32_01_22_core/packages/xdc/cfg/Main.xs", line 160: Error: Configuration failed!
gmake.exe: *** [package/cfg/mutex_p28FP.xdl] Error 1
js: "C:/ti/xdctools_3_32_01_22_core/packages/xdc/tools/Cmdr.xs", line 52: Error: xdc.tools.configuro: configuration failed due to earlier errors (status = 2); 'linker.cmd' deleted.
gmake: *** No rule to make target 'build-760382241', needed by 'configPkg/compiler.opt'.
gmake: Target 'all' not remade because of errors.
**** Build Finished ****
