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12.3 Linking with an ARM Executable The hexpru tool can be used to convert a PRU executable into an ARM object file that can be linked in with an ARM project. The PRU code and data are converted to ARM data. The ARM application can reference symbols in the PRU file. This is useful for bare metal projects that are not running a high level operating system like Linux. The files for this example are provided in the PRU compiler's "example" directory. The resulting executable exposes the shared_buf and local_data symbols. clpru -o3 test.c -z AM3359_PRU.cmd -o pru.out To convert the executable to an ARM object file, use the PRU_to_ARM.cmd file as follows: hexpru pru.out -o pru.obj PRU_to_ARM.cmd The resulting pru.obj file can be linked with the dummy ARM application as follows: armcl arm.c pru0.obj -z dummy_ARM.cmd -o arm.out
