[Article] NuttX on Ox64 BL808 RISC-V SBC: UART Interrupt and Platform-Level Interrupt Controller (PLIC)
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
Re: [Article] NuttX on Ox64 BL808 RISC-V SBC: UART Interrupt and Platform-Level Interrupt Controller (PLIC)
Very cool! Your graphics are very didact too! It could be useful for the Milk-V port as well! Best Regards, Alan On Sat, Dec 2, 2023 at 8:06 PM Lee, Lup Yuen wrote: > 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 >
