WRITING TMS320C8X PP CODE UNDER THE MULTITASKING EXECUTIVE

The purpose of this document is to supplement the TMS320C8x Multitasking Executive (ME) User's Guide and to provide useful guidelines for writing Parallel Processor (PP) assembly language or C code that can run under the executive.

ME tasks running on the Master Processor (MP) may issue commands to the PPs. These commands are requests for the PPs to execute a routine and then, optionally, interrupt the MP to notify the MP that the routine is done. The routine that the PP executes is a PP assembly language subroutine or a C routine. In order to write PP subroutines or C routines that run under the ME, it is important to understand the PP environment set up by the ME. Tasks running under the ME communicate with the PPs via a PP command interpreter. The PP command interpreter is a PP assembly language routine that waits for commands to be sent from tasks running on the MP.

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