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A comment on Recreating RP2040 PIO Interface in an FPGA. Parent comment

Re:Recreating RP2040 PIO Interface in an FPGA by mysterydip on Sunday May 21, 2023 @02:38PM (#36023611)
The P2 is a huge step up from the old propeller. If you haven't checked it out, I recommend it. "smart pins" are able to do all kinds of things, almost like having mini cores along with the main cogs. I used it for a project and was able to achieve all my goals. Really happy with it.
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Re:Recreating RP2040 PIO Interface in an FPGA by yetanotherloser on Sunday May 21, 2023 @03:26PM (#36023978)
You've got me intrigued,but also wanting more specifics. Did you share any details of this anywhere you can link to? (don't worry if not, I'm just nosy)
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Re:Recreating RP2040 PIO Interface in an FPGA by mysterydip on Sunday May 21, 2023 @03:32PM (#36024035)
https://www.parallax.com/propeller-2/ tons of improvements in terms of memory access etc, but pay attention to the "64 smart pins" section specifically. I use them to buffer out sub-microsecond waveforms 3ms at a time. I send it off to the smart pins then my cog is freed up for other things. I also previously used some for an HDMI GUI.
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Re:Recreating RP2040 PIO Interface in an FPGA by yetanotherloser on Monday May 22, 2023 @04:49PM (#36036532)
Ah, I see. Nice work. Thanks for the extra detail.
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