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My guess is it's essentially free to knock up a RISC-V core (there have been a couple in tiny tapeout) while ARM are getting aggressive and raising the price of
by Taniwha 2y ago
My guess is it's essentially free to knock up a RISC-V core (there have been a couple in tiny tapeout) while ARM are getting aggressive and raising the price of their cores - by building a part than can run with 2 ARM cores or 2 RISCV cores RPi are thinking about their future, not only do they have a way to keep costs down if ARM tries to raise them simply by abandoning ARM but they also have a bargaining chip on the table when that negotiation happens
There's going to be a pretty large number of code bases that when they get recompiled for RISC-V just work, that's going to be scary for ARM
- 15155 2y agoWhen packaged M0s run 6-8 cents, are they really getting "aggressive?" https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU-SOC_PUYA-PY32F002AL15S6TU_C5292060.html https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU...
- snvzz 2y agoM0 are not comparable to M0+, which in turn are not comparable to M4 or M33. The RISC-V core in RP2350 is similarly performing to M33 except for the lack of FPU. Notably, SiFive's designs generally halve the area of similarly performing ARM ones, while being slightly faster and using significantly less power. ARM's become bloated.
- 15155 2y agohttps://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU-SOC_PUYA-PY32F003W16S6TU_C5128437.html https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU... Here's an M0+ for an extra 4 cents - hopefully that won't break the bank. https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU-SOC_ARTERY-AT32F421F8P7_C2827821.html https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU... Or another 30 cents for an M4.
- Narishma 2y agoThey are using an M33 in the RP2350.
- klelatti 2y ago> Notably, SiFive's designs generally halve the area of similarly performing ARM ones, while being slightly faster and using significantly less power. Source?