Apache #NuttX RTOS crashes on @PINE64 Star64 #JH7110 #RISCV SBC because there's no Semihosting ... Let's modify NuttX to boot with an Initial RAM Disk instead (initrd)

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

Apache #NuttX RTOS crashes on Star64 #JH7110 with #RISCV MCAUSE 3 ... Let's find out why

Article: https://lupyuen.codeberg.page/articles/semihost.html#nuttx-crashes-on-star64

Apache #NuttX RTOS halts with #RISCV MCAUSE 3 because of the EBREAK Instruction for Debugging ... But we're not doing any debugging!

Article: https://lupyuen.codeberg.page/articles/semihost.html#decipher-the-risc-v-exception

#RISCV EBREAK Instruction is used for Semihosting ... Like breaking out of the #QEMU Virtual Machine to do powerful things

Article: https://lupyuen.codeberg.page/articles/semihost.html#decipher-the-risc-v-exception

Apache #NuttX RTOS for QEMU calls Semihosting ... To access the Host File System

Article: https://lupyuen.codeberg.page/articles/semihost.html#nuttx-calls-semihosting

Inside the Apps Filesystem for Apache #NuttX RTOS

Article: https://lupyuen.codeberg.page/articles/semihost.html#nuttx-apps-filesystem

Semihosting is needed by Apache #NuttX RTOS on QEMU ... To access the Apps Filesystem

Article: https://lupyuen.codeberg.page/articles/semihost.html#semihosting-on-nuttx-qemu

Let's modify Apache #NuttX RTOS for QEMU ... To load the Initial RAM Disk (initrd) at startup

Article: https://lupyuen.codeberg.page/articles/semihost.html#modify-nuttx-qemu-for-initial-ram-disk

Here's how we boot Apache #NuttX RTOS on QEMU with an Initial RAM Disk (initrd)

Article: https://lupyuen.codeberg.page/articles/semihost.html#boot-nuttx-qemu-with-initial-ram-disk