4 Commits

Author	SHA1	Message	Date
root	8e15f36baa	pulseio (pulsein) for RP2040	2021-02-24 16:58:29 -06:00
Jeff Epler	5423e4966c	rp2pio: Transfer up to 32 bytes before checking background tasks ... @Jerryneedell noticed that this problem affected strips short enough to not use the DMA peripheral, thanks for the hot tip! Instead of checking for background tasks after every byte transfer, try up to 32 transfers before attending to background tasks. This fixes the problem I was seeing on my 5-pixel circuit. Closes #4135.	2021-02-08 08:35:07 -06:00
Scott Shawcroft	6a6f22b0e6	pre-commit	2021-01-20 23:30:15 -08:00
Scott Shawcroft	733094aead	Add initial RP2040 support ... The RP2040 is new microcontroller from Raspberry Pi that features two Cortex M0s and eight PIO state machines that are good for crunching lots of data. It has 264k RAM and a built in UF2 bootloader too. Datasheet: https://pico.raspberrypi.org/files/rp2040_datasheet.pdf	2021-01-20 19:16:56 -08:00