Let's boot Apache #NuttX RTOS on #RISCV Star64 #JH7110 SBC (VisionFive5 too) ... And experiment with the #OpenSBI Supervisor Binary Interface

Article: https://lupyuen.codeberg.page/articles/sbi

#OpenSBI provides Secure Access to the #RISCV System Functions ... Like for controlling CPUs and Timers

Article: https://lupyuen.codeberg.page/articles/sbi.html#opensbi-supervisor-binary-interface

Here's how we call #OpenSBI from Apache #NuttX RTOS

Article: https://lupyuen.codeberg.page/articles/sbi.html#call-opensbi-from-nuttx

Let's run some #OpenSBI Experiments ... With Apache #NuttX RTOS on #Star64 JH7110 #RISCV SBC!

Article: https://lupyuen.codeberg.page/articles/sbi.html#run-nuttx-with-opensbi

New in #RISCV SBI Spec 2.0: Debug Console I/O

Article: https://lupyuen.codeberg.page/articles/sbi.html#opensbi-debug-console

Here's how we read the SBI Spec Version from #RISCV #OpenSBI

Article: https://lupyuen.codeberg.page/articles/sbi.html#read-the-sbi-version

Let's probe for #RISCV SBI Extensions ... Before we call them

Article: https://lupyuen.codeberg.page/articles/sbi.html#probe-the-sbi-extensions

Checking up on #RISCV Cores with #OpenSBI

Article: https://lupyuen.codeberg.page/articles/sbi.html#query-the-risc-v-cpus

To Shutdown and Reboot our #RISCV SBC ... Just call #OpenSBI!

Article: https://lupyuen.codeberg.page/articles/sbi.html#shutdown-and-reboot-the-sbc

Setting the #RISCV System Timer by calling #OpenSBI

Article: https://lupyuen.codeberg.page/articles/sbi.html#set-a-system-timer

Calling #OpenSBI to read the #RISCV System Info ... On #Star64 JH7110 SBC

Article: https://lupyuen.codeberg.page/articles/sbi.html#fetch-the-system-info