circuitpython

djsundog/circuitpython

Fork 0

Commit Graph

Author	SHA1	Message	Date
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

Author

SHA1

Message

Date

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

3 Commits