5 Commits

Author	SHA1	Message	Date
Dan Halbert	0ec99b37e0	handle 100% duty cycle; improve actual_frequency calc	2021-02-13 13:16:49 -05:00
Dan Halbert	3e4328140c	fix off-by-one PWM top issue	2021-02-12 15:53:31 -05:00
Scott Shawcroft	191b143e7b	Add PWM based audio playback ... See https://learn.adafruit.com/circuitpython-essentials/circuitpython-audio-out to get started. Fixes #4037	2021-02-09 15:38:33 -08:00
root	9a28f0bf45	Fix check for variable PWM frequency	2021-02-09 15:22:59 -06:00
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