PROCESSOR-SDK-AM64X: AM64x Inter Process Communication

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Getting started with IPC resources

For more up-to-date information on IPC, please refer to the AM64x academy:

Basics – loading and running firmware, testing the IPC Echo example

Start with a TI EVM and the TI Linux filesystem default image.

Do the Linux > Evaluating Linux pages:

Booting remote cores: https://dev.ti.com/tirex/explore/node?node=A__AdAyuKWUWVV5j4wBc7C6XA__AM64-ACADEMY__WI1KRXP__LATEST 

Running the IPC example: https://dev.ti.com/tirex/explore/node?node=A__Ab31zORiXVgIbeWGmbktOA__AM64-ACADEMY__WI1KRXP__LATEST 

Next steps – debugging the IPC Echo example

For debugging the remote core project, I would do this:

Rebuild the ipc_rpmsg_echo_linux example in the MCU+ SDK at

examples/drivers/ipc/ipc_rpmsg_echo_linux

Refer to https://software-dl.ti.com/mcu-plus-sdk/esd/AM64X/09_01_00_41/exports/docs/api_guide_am64x/GETTING_STARTED_BUILD.html for build steps

Copy your new binaries to the filesystem, and boot them as described in the first section

In CCS, “load symbols” to allow CCS to connect to the running MCU+ SDK cores. The steps are similar to here, but you do NOT want to restart the CPU or Load a program. Instead, do Load > Load Symbols and point to the project that was used to generate the binary file:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM64X/09_01_00_41/exports/docs/api_guide_am64x/CCS_LAUNCH_PAGE.html 

More advanced – rebuilding the IPC Echo Linux userspace & Linux kernel code

Those steps are discussed here: https://dev.ti.com/tirex/explore/node?node=A__AT0quqp1AZJ7z5jn1Ua5nQ__AM64-ACADEMY__WI1KRXP__LATEST 

If the Linux build commands do not work for you, please reference the Linux SDK kernel build page of your associated SDK version. The exact cross-compiler used might have changed since SDK 9.0

e.g., SDK 9.1: https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/09_01_00_08/exports/docs/linux/Foundational_Components_Kernel_Users_Guide.html 

More advanced – creating your own MCU+ SDK project

For how to make it compatible with Linux, refer to multicore academy module

https://dev.ti.com/tirex/explore/node?node=A__AeMVTHckwFDmFoNkRHpRPw__AM64-ACADEMY__WI1KRXP__LATEST 

For basics on MCU+ development, refer to MCU academy module (future readers, this URL might change)
https://dev.ti.com/tirex/explore/node?node=A__AEIJm0rwIeU.2P1OBWwlaA__com.ti.MCU_PLUS_ACADEMY_AM64X__n6QeJt5__LATEST

Regards,

Nick