Lup Yuen Lee 李立源 @lupyuen@qoto.org

12 Cores of #Ubuntu Xeon fully-loaded for compiling Apache #NuttX RTOS (4 parallel jobs) ... Definitely CPU Bound, not I/O 🤔

Source: https://github.com/lupyuen/nuttx-build-farm

#Sophgo SG2000 Emulator is super helpful for Daily Automated Testing of Apache #NuttX RTOS 👍

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#daily-automated-testing

Emulating the other #Sophgo SG2000 Peripherals in #TinyEMU: GPIO, I2C, SPI, …

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#emulate-the-sg2000-peripherals

#TinyEMU Emulator supports only 32 #RISCV External Interrupts! Let's bump it up

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#increase-tinyemu-interrupts-to-64

When we press a key: #TinyEMU crashes with a SegFault ... Let's troubleshoot with LLDB

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#uart-input-triggers-segfault

Let's emulate the UART Input Registers in our #RISCV Emulator for #Sophgo SG2000 SoC

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#emulate-the-uart-input-registers

Inside TinyEMU #RISCV Emulator: We intercept the Memory Writes to emulate the UART Output Register

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#emulate-the-uart-output-registers

How we emulate the 16550 UART Controller in TinyEMU #RISCV Emulator

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#emulate-the-16550-uart-controller

We change #RISCV `auipc` to `li` in our bespoke #TinyEMU Emulator for #Sophgo SG2000

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#change-auipc-to-li-in-boot-code

Fixing the #RISCV AUIPC Overflow in our #SG2000 TinyEMU Emulator

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#auipc-overflow-in-boot-code

We take the TinyEMU #RISCV Emulator for Ox64 BL808 SBC ... Tweak it for #Sophgo SG2000 SoC

Article: https://lupyuen.codeberg.page/articles/sg2000b.html#update-the-memory-map