Our article today is all about RISC-V Interrupts on the tiny adorable
Pine64 Ox64 BL808 64-bit Single-Board Computer (based on Bouffalo Lab BL808
SoC)…

(1) What’s inside the Platform-Level Interrupt Controller (PLIC)
(2) Setting up the PLIC at startup
(3) Enabling the PLIC Interrupt for Serial Console
(4) Handling PLIC Interrupts for UART Input

We’ll walk through the steps with our work-in-progress NuttX on Ox64. But
we’ll hit a bumpy journey…

(5) Leaky Writes seem to affect adjacent PLIC Registers
(6) Interrupt Claim doesn’t seem to work right

Check out the article: https://lupyuen.codeberg.page/articles/plic2.html

Lup

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