Lup Yuen Lee 李立源 @lupyuen@qoto.org

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

@raynix Yep I tried Self-Hosted GitHub Runners, I wrote about my experience here: https://lupyuen.github.io/articles/ci

(1) GitHub Runners are actually quite complex to setup. And the machine needs to be properly secured, in case any unauthorised code is pushed down from GitHub.

(2) We don't have budget to set up Secure VMs for GitHub Runners anyway

(3) NuttX Project might be a little too dependent on GitHub. Even if we had the funds, the ASF contract with GitHub won't allow us to pay more for extra usage. So we're trying alternatives.

(4) Right now we're testing a community-hosted Build Farm based on Ubuntu PCs and macOS: https://lupyuen.github.io/articles/ci2

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