suspect-devices/circuitpython/ports/raspberrypi/common-hal/busio, branch main

RP2040: Only bitbang 0-byte writes

2021-03-17T16:25:54+00:00

The I2C.c for RP2040 included a special case for writes <=2 bytes to match the MicroPython implementation, however RP2040 does support 1 and 2 byte reads, with only 0 bytes being the exception. Signed-off-by: Philip Howard

run code formatting script

2021-03-15T13:57:36+00:00

add 1sec timeouts for I2C read and write

2021-03-03T14:43:57+00:00

works on nearly all sensors

2021-03-03T04:27:37+00:00

Merge remote-tracking branch 'adafruit/main' into rp2040-i2c-short-writes

2021-03-02T20:17:12+00:00

wip

2021-03-02T20:16:55+00:00

A few minor fixes for corner cases

2021-02-26T00:50:57+00:00

* Always clear the peripheral interrupt so we don't hang when full * Store the ringbuf in the object so it gets collected when we're alive * Make UART objects have a finaliser so they are deinit when their memory is freed * Copy bytes into the ringbuf from the FIFO after we read to ensure the interrupt is enabled ASAP * Copy bytes into the ringbuf from the FIFO before measuring our rx available because the interrupt is based on a threshold (not > 0). For example, a single byte won't trigger an interrupt.

more uart improvements

2021-02-25T18:16:00+00:00

- address suggested changes - refine uart instance availibility checks - improve pin validation and rx buffer handling

implement suggested changes

2021-02-24T19:18:36+00:00

- add internal buffering - rtc initialization fix

uart implementation for rp2040

2021-02-19T13:06:00+00:00