Re: [AmateurRadioBuilders] RP Pico 2
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There is now a 8/16bit parallel?library available for the RA8876 displays and accompanying lib for the capacitive touchscreen controller. Was toying with the idea of a twin teensy setup, one dedicated to the display and one for the DSP work, data xfer between the?two would be over ethernet as it offers high speed and the 16bit connection consumes a lot of the pins on the teensy connected to the display.
Might be a good way to get around memory limitations and you could still use a pico pi connected to the DSP teensy to handle the I/O stuff and provide WiFi connectivity which in turn opens up all sorts of possibilities for integration with online API's.Now that we have decent code build to work with I might try to do some testing over the next while to see if I can get this setup to work. Already have the display working with a parallel?connection just need to determine how well firing the waterfall array data across the ethernet works and it doesn't mess up the audio on the DSP teensy. It will be an interesting experiment!
You didn't read what I said. Each "page" (your term, not mine) is a segment of the display and only that gets updated.
Jack, W8TEE
On Friday, February 28, 2025 at 12:13:08 PM EST, jerry-KF6VB < jerry@...> wrote:
On 2025-02-28 08:46, jjpurdum via wrote:
> I think the Teensy could work with only 3 function calls to the Pico
> (or whatever??) processor for each page:
*** It should be more granular than that.? If a new S-meter reading
comes in,
the Pico shouldn't have to update the entire display.
? ? ? ? ? ? ? - Jerry,KF6VB
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Jack, W8TEE
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