This demo features a multi-threaded bare metal application running over Bao on all available cores. The application prints to the first available UART.
It configures a periodic timer interrupt in the first core and, each time this interrupt is triggered, it forwards an IPI to the next core. Each time a core receives an IPI it will forward it to the next core, until there are no more cores to interrupt.
The application also setups an RX UART interrupt that might be forwarded to just one or multiple cores, depending on the capabilities of the platform's interrupt controller. Each time it receives a character, it will print a message.
If you are targetting an MPU platform (i.e. fvp-r), set:
export FVPR_VM_IMAGES="$BAO_DEMOS_WRKDIR_IMGS/baremetal.bin@0x10000000"
To build the baremetal app, in case you are targeting an MPU platform (e.g. fvp-r), set:
export BAREMETAL_PARAMS="MEM_BASE=0x10000000"
Then, follow the build instructions to compile the bare metal application to your target platform.