4 ms·

No. I've never seen the movie. We already have 32-bit microcontrollers in 8 pin packages [0]. Seems like 64-bit will also be coming down the pike eventually.

by floxy 2y ago

No. I've never seen the movie. We already have 32-bit microcontrollers in 8 pin packages [0]. Seems like 64-bit will also be coming down the pike eventually. If for no other reason than ease of toolchain development. [0] https://www.st.com/en/microcontrollers-microprocessors/stm32g041j6.html https://www.st.com/en/microcontrollers-microprocessors/stm32...

brucehoult 2y ago
Mmmm ... CM0, 64 MHz, 8k RAM, 32k flash. I hit "Order direct" and it says "$0.93 | 10ku" which I take to mean you need to spend $9300 to get that price? I added one to my cart and it's $2.04. If you can get by with 48 MHz, 2k RAM, 16k flash then there's the very popular RISC-V CH32V003 for which you need to spend $6.21 to get a $0.12 each price (50 units) [1]. Or for around $0.30 each (qty 20) you can get the CH32V203 with 144 MHz, 20k RAM, 64k flash, and USB. However the smallest package for that seems to be 20 pins. But the '003 is getting very popular for cute little projects. It runs on both 3.3V and 5V, needs no external oscillator or crystal (but can use one), has Single Wire Debug, and is (along with the Puya PY32) the cheapest flash-based microcontroller you can get, allowing you to iterate your code without throwing away a chip every time. A cute little €1 retro computer with PS/2 kb and bit-banged VGA: https://www.olimex.com/Products/Retro-Computers/RVPC/open-source-hardware https://www.olimex.com/Products/Retro-Computers/RVPC/open-so... A mini game console: https://www.youtube.com/watch?v=1W7Z0BodhWk https://www.youtube.com/watch?v=1W7Z0BodhWk Driving a Nixie tube from USB: https://www.youtube.com/watch?v=-4d3PgEXhdY https://www.youtube.com/watch?v=-4d3PgEXhdY [1] https://www.aliexpress.us/item/3256804850399956.html https://www.aliexpress.us/item/3256804850399956.html
- floxy 2y ago
  The RV32EC instruction set in the CH32V003 doesn't even have a hardware multiplier, right? https://riscv.org/wp-content/uploads/2016/06/riscv-spec-v2.1.pdf https://riscv.org/wp-content/uploads/2016/06/riscv-spec-v2.1... If you really want luxury and can afford the 28-pins, the Microchip PIC32MK0128MCA028 has a 32-bit MIPS core running at 120 MHz, with a hardware floating point unit.
  - snvzz 2y ago
    For luxury, there is ESP32-P4. The just-announced Raspberry Pi Pico 2 looks nice as well.
Kirby64 2y ago
Why would this be easier to work with? 64 bit comes with additional costs that are mostly worthless for most applications, and toolchains around 32 bit are still plentiful. Most embedded interfaces are either 8 or 32 bit based today, too.

by floxy 2y ago

brucehoult 2y ago

Mmmm ... CM0, 64 MHz, 8k RAM, 32k flash. I hit "Order direct" and it says "$0.93 | 10ku" which I take to mean you need to spend $9300 to get that price? I added one to my cart and it's $2.04. If you can get by with 48 MHz, 2k RAM, 16k flash then there's the very popular RISC-V CH32V003 for which you need to spend $6.21 to get a $0.12 each price (50 units) [1]. Or for around $0.30 each (qty 20) you can get the CH32V203 with 144 MHz, 20k RAM, 64k flash, and USB. However the smallest package for that seems to be 20 pins. But the '003 is getting very popular for cute little projects. It runs on both 3.3V and 5V, needs no external oscillator or crystal (but can use one), has Single Wire Debug, and is (along with the Puya PY32) the cheapest flash-based microcontroller you can get, allowing you to iterate your code without throwing away a chip every time. A cute little €1 retro computer with PS/2 kb and bit-banged VGA: https://www.olimex.com/Products/Retro-Computers/RVPC/open-source-hardware https://www.olimex.com/Products/Retro-Computers/RVPC/open-so... A mini game console: https://www.youtube.com/watch?v=1W7Z0BodhWk https://www.youtube.com/watch?v=1W7Z0BodhWk Driving a Nixie tube from USB: https://www.youtube.com/watch?v=-4d3PgEXhdY https://www.youtube.com/watch?v=-4d3PgEXhdY [1] https://www.aliexpress.us/item/3256804850399956.html https://www.aliexpress.us/item/3256804850399956.html

floxy 2y ago
The RV32EC instruction set in the CH32V003 doesn't even have a hardware multiplier, right? https://riscv.org/wp-content/uploads/2016/06/riscv-spec-v2.1.pdf https://riscv.org/wp-content/uploads/2016/06/riscv-spec-v2.1... If you really want luxury and can afford the 28-pins, the Microchip PIC32MK0128MCA028 has a 32-bit MIPS core running at 120 MHz, with a hardware floating point unit.
- snvzz 2y ago
  For luxury, there is ESP32-P4. The just-announced Raspberry Pi Pico 2 looks nice as well.

Kirby64 2y ago

Why would this be easier to work with? 64 bit comes with additional costs that are mostly worthless for most applications, and toolchains around 32 bit are still plentiful. Most embedded interfaces are either 8 or 32 bit based today, too.