Commit Graph

7 Commits

Author SHA1 Message Date
Damien George 35524a6fda examples/rp2: Add comment that examples using IO25 don't work on Pico W.
Signed-off-by: Damien George <damien@micropython.org>
2023-02-07 15:03:14 +11:00
Jim Mussared 8b27482692 top: Update Python formatting to black "2023 stable style".
See https://black.readthedocs.io/en/stable/the_black_code_style/index.html

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-02-02 12:51:03 +11:00
Stig Bjørlykke 209a6bb6b7 docs/rp2: Make LED have exactly 50% duty cycle in PIO 1Hz example.
This ensures the same number of cycles are used for LED on and LED off in
the PIO 1Hz example.  It's also possible to swap the first set() and the
irq() to avoid using an extra instruction, but this tutorial is a good
example of how to calculate the cycles.

Signed-off-by: Stig Bjørlykke <stig@bjorlykke.org>
2023-01-12 17:07:43 +11:00
Damien George ab2923dfa1 all: Update Python formatting to latest Black version 22.1.0.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-02 16:49:55 +11:00
Tim Radvan f842a40df4 rp2/rp2_pio: Add fifo_join support for PIO.
The PIO state machines on the RP2040 have 4 word deep TX and RX FIFOs.  If
you only need one direction, you can "merge" them into either a single 8
word deep TX or RX FIFO.

We simply add constants to the PIO object, and set the appropriate bits in
`shiftctrl`.

Resolves #6854.

Signed-off-by: Tim Radvan <tim@tjvr.org>
2021-04-17 00:45:38 +10:00
Tim Radvan 3ea05e499d examples/rp2: Add pio_uart_rx.py example.
This was adapted from the `pio/uart_rx` example from the `pico-examples`
repository:
https://github.com/raspberrypi/pico-examples/blob/master/pio/uart_rx/uart_rx.pio

It demonstrates the `jmp_pin` feature in action.

Signed-off-by: Tim Radvan <tim@tjvr.org>
2021-02-02 11:33:51 +11:00
Damien George 469345e728 rp2: Add new port to Raspberry Pi RP2 microcontroller.
This commit adds a new port "rp2" which targets the new Raspberry Pi RP2040
microcontroller.

The build system uses pure cmake (with a small Makefile wrapper for
convenience).  The USB driver is TinyUSB, and there is a machine module
with most of the standard classes implemented.  Some examples are provided
in the examples/rp2/ directory.

Work done in collaboration with Graham Sanderson.

Signed-off-by: Damien George <damien@micropython.org>
2021-01-30 00:42:29 +11:00