Lup Yuen Lee 李立源 @lupyuen@qoto.org

Will HDMI work with Star64 #JH7110 and Apache #NuttX RTOS? Let's figure out 🤔

Source: https://github.com/lupyuen/nuttx-star64#hdmi-display-for-star64-jh7110

Finally we boot Apache #NuttX RTOS on Star64 #JH7110 with an Initial RAM Disk (initrd)

Article: https://lupyuen.codeberg.page/articles/semihost.html#nuttx-star64-with-initial-ram-disk

#RISCV PineTab-V #JH7110 Schematic

Source: https://wiki.pine64.org/wiki/PineTab-V#Schematics_and_certifications

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

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

Automated Daily Builds of Apache #NuttX RTOS for Star64 #JH7110 SBC ... Maybe we'll run Automated Daily Tests over TFTP 🤔

Source: https://github.com/lupyuen/nuttx-star64#nuttx-automated-daily-build-for-star64

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

Inside the Apps Filesystem for Apache #NuttX RTOS

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

Now doing #NuttX on PineCone, PinePhone, PinePhone Pro, Star64 AND PineTab-V ... Life gets super exciting! 👍

Source: https://github.com/lupyuen

[Work in Progress] #PinePhonePro with Apache #NuttX RTOS! 👍

Source: https://github.com/apache/nuttx/pull/10193

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

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

#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

Factory Test Code for #RISCV PineTab-V #JH7110 has been mirrored here for quicker download

Source: https://github.com/lupyuen/nuttx-star64#pinetab-v-factory-test-code

#PinePhone @PINE64 with Apache #NuttX Real-Time Operating System ... Happens next weekend at Apache Conference Asia

Source: https://forum.pine64.org/showthread.php?tid=18600

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

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

#RISCV PineTab-V #JH7110 ships with Factory Test Code ... Let's look inside the code 👀

Source: https://wiki.pine64.org/wiki/PineTab-V_Releases

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

Check out the other #RISCV ports of Apache #NuttX RTOS

Article: https://lupyuen.codeberg.page/articles/privilege.html#other-risc-v-ports-of-nuttx

Fixing the #RISCV Machine Mode registers for Star64 #JH7110 SBC

Article: https://lupyuen.codeberg.page/articles/privilege.html#initialise-risc-v-supervisor-mode