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Forum Index : Microcontroller and PC projects : WeAct 16 MB PSRAM, 16MB Flash Wifi
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| PhenixRising Guru  Joined: 07/11/2023 Location: United KingdomPosts: 2097 |
What kind of control software needs so much memory? I have many hundreds of DOS-based industrial CNC controllers in the field. One MB RAM was never a problem. |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 9219 |
Why look for the most complex solution? :) One web server plus bidirectional RS485. Multiple task handlers and IO ports with bidirectional RS485. Use the COM ports in MMBasic to control the RS485 in each case as you get built-in buffering. Less complex than a parallel interface, multi-station by design and still pretty fast. It will even work on the RP2040 apart from the web server. Mick Zilog Inside! nascom.info for Nascom & Gemini |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 2097 |
Well in my case, I am running 1ms PID servo loops and 2ms trajectory planners. REAL closed-loop servo control involves not just feedback from the encoder that is integrated with the motor but also a secondary feedback from the actual load. I need a minimum of 8 coordinated axes which means sample-accurate updates. I need two Picomites for this. These things can do what even the big guys can't  Edited 2026-10-18 01:31 by PhenixRising |
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