National Instruments AutoCode NI MATRIX Reference

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National Instruments AutoCode NI MATRIX Reference Manual pdf 33 page image

Chapter 2 C Language ReferenceAutoCode Reference 2-16 ni.comLinking Handwritten UCBs (for AutoCode) with SystemBuildAfter you have written a UCB to create an AutoCode application, you canuse the same UCB for simulation. SystemBuild can automatically compileand link your UserCode function into the simulation engine (release 4.0 andlater). Refer to Figure 2-3.SystemBuild provides the usr01.c example file and AutoCode providesthe sa_user.c example file for writing UCBs. These files are differentand should not be used interchangeably for linking UCBs withSystemBuild and AutoCode applications. usr01.c is strictly meant to linkuser-written code with the SystemBuild simulator. sa_user.c is meant tolink user-written code with AutoCode applications. After the code has beenwritten using sa_user.c, the same file might be linked with SystemBuild.The $ucb directive in usr_dsp.c in Figure 2-3 makes it possible to linkhandwritten UCBs for AutoCode with SystemBuild. However, codewritten using usr01.c, provided by SystemBuild, cannot be linked with anAutoCode application.