CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main 2021-03-16T01:00:13+00:00 2021-03-16T01:00:13+00:00 Mark 56205165+gamblor21@users.noreply.github.com 2021-03-16T01:00:13+00:00 urn:sha1:e326d7ca800ce7101ddce001320c5349ee5ddeb6 2021-03-15T13:57:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-03-15T13:57:36+00:00 urn:sha1:a52eb88031620a81521b937f2a0651dbac2bb350 2021-03-12T01:32:44+00:00 gamblor21 mark.komus@gmail.com 2021-03-05T02:48:24+00:00 urn:sha1:1658fe04f9b4fe0ac07d105e3123c263d36a2a42 2021-03-05T16:31:29+00:00 Jeff Epler jepler@unpythonic.net 2021-03-05T15:00:03+00:00 urn:sha1:2ae1e7de61485bc9167996a63c32bf7b14c4c80c Any two consecutive pins can be used for an IncrementalEncoder Testing performed: Put a synthesized (few hundred counts per second) quadrature signal into GP2/3 and read the encoder out. Performed filesystem operations at the same time to stress test it. The reasons for not using common_hal_rp2pio_statemachine_readinto are commented on. 2021-03-04T17:26:29+00:00 Jeff Epler jepler@unpythonic.net 2021-03-04T16:03:31+00:00 urn:sha1:ff62b0d2c020cffb910ad15e81897b41e92380fa 2021-03-04T17:14:09+00:00 Jeff Epler jepler@unpythonic.net 2021-03-04T15:29:01+00:00 urn:sha1:68ac14b3097291ba3c2f0c7edc61f93beebc783d I named the property `in_available` because it is similar to pyserial. However, it indicates the number of words in the fifo, not the number of bytes. 2021-02-23T23:50:00+00:00 Scott Shawcroft scott@tannewt.org 2021-02-23T23:50:00+00:00 urn:sha1:360475e26618cba98522d5dd86d0051d3a296fb3 This adds I2SOut and PDMIn support via PIO. StateMachines can now: * read and read while writing * transfer in 1, 2 or 4 byte increments * init pins based on expected defaults automatically * be stopped and restarted * rxfifo can be cleared and rxstalls detected (good for tracking when the reading code isn't keeping up) Fixes #4162 2021-01-21T03:16:56+00:00 Scott Shawcroft scott@tannewt.org 2021-01-21T00:47:18+00:00 urn:sha1:733094aead6e84b42da54655b2b0a5d0dbd1a503 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