4 ms·
Could you share a link or more details? What is this hobby CPU project?
by dgellow 3mo ago
Could you share a link or more details? What is this hobby CPU project?
- LukeShu 3mo agoLuke Wren works at Raspberry Pi and designed the Hazard3 CPU core that is in the RP2350 chip.
- aurelian15 3mo agoI think the GP is talking about the Hazard3 [1] core. This is one of the CPU cores besides the ARM M33 instantiated on the RP2350 µC [2]. See this article from Luke Wren (Wren6991) back when the RP2350 came out [3]. [1] https://github.com/Wren6991/Hazard3 https://github.com/Wren6991/Hazard3 [2] https://www.raspberrypi.com/products/rp2350/ https://www.raspberrypi.com/products/rp2350/ [3] https://www.raspberrypi.com/news/risc-v-on-raspberry-pi-pico-2/ https://www.raspberrypi.com/news/risc-v-on-raspberry-pi-pico...
- dgellow 3mo agoThank you!
- ACCount37 3mo agoWhat I find interesting is that RP2350 is designed as "one or the other", no way to use ARM and RISC-V concurrently, and has fuses that can kill ARM M33 cores outright. Makes me wonder if an "ARM cores fused off, RISC-V only, no ARM fees" SKU is possible.
- LukeShu 3mo agoSeveral of the peripherals in the RP2350 are also ARM IP.
- brucehoult 3mo agoYou can choose Arm in one pair and RISC-V in the other pair if you want.