Hi Experts,
We have a custom board design using AM6231 and I'd like to make sure our understanding is correct when it comes to the M4F remote core.
- It's pretty clear to us that the R5F is running device/power management firmware. But when reading the forums and documentation it's not clear whether there's mandatory firmware that needs to be running on the M4F for security features. Is TI-FS only running during the boot process to support secure boot?
Figure 4 from the this TI-SCI documentation page sticks out https://software-dl.ti.com/tisci/esd/09_01_08/2_tisci_msgs/general/TISCI_header.html It seems to show that we can have an application that runs along-side TI-FS.
- One thing we'd like to potentially do service a hardware watchdog while in MCU-only sleep. Currently this watchdog is serviced by the Linux watchdog subsystem, but there will be a gap if we sleep. The documentation is clear that we can assign a peripheral such as a MAIN uart/gpio to the MCU, but can they be shared? If not, I have some ideas using IPC to handle it.
