5 ms·
Have you considered working off a commercial ARM microcontroller, say ARM M3, from STM, NXP, or Infineon? It's orders faster than a Z80, the documentation is wo
by danielvf 3y ago
Have you considered working off a commercial ARM microcontroller, say ARM M3, from STM, NXP, or Infineon? It's orders faster than a Z80, the documentation is world class, you can control every bit code that it runes, and there's a whole industry of people who spend their lives writing code for them.
I've written from bare metal: keys, display, networking, with hard realtime stuff (response times in millionths of second). It's not actually the bad.
- i_am_a_peasant 3y agothat's what i plan to do also either on stm32 or microblaze
- Shawnj2 3y agoThe RP2040 is a great platform IMO to explore this with both because it’s very cheap for a microcontroller of its tier, it has some interesting features like dual core not typically found on microcontrollers, and the programmable IO means that you can “””in hardware””” implement protocols that would normally be completely absurd to run on a micro controller, like DVI.
- sph 3y agoI didn't know it was so cheap. Just got a Pico W with 2" display for less than £30. Now I gotta port my Forth interpreter to ARM... looking forward to a fun weekend!
- Shawnj2 3y ago30 euros is robbery, the MSRP for the Pico is $4 and the MSRP a for the Pico W is $6
- starkrights 3y agopi’s have been in a state of godawful inventory status, and consequently godawful pricing if you can even find stock, since 2020. I saw a thread recently that alleged that stock was kind of returning to normal ish, but I didn’t get a chance to read into it. E: we’re talking about picos… I actually don’t remember if they’ve been normal price wise lately or not- apologies if that was a mildly irrelevant comment lol
- Shawnj2 3y agoYeah the picos should be priced reasonably lol and if they’re not you should get an SAMD21/51, ESP32, or NRF52 and save your money
- sph 3y agoThe Pico W was £6, I said I also got a display for it, and delivery was almost £10 for some reason. That's what I spent for dinner yesterday so I'm not gonna lose sleep over this figure.