Commit Graph

9 Commits

Author SHA1 Message Date
Damien George 67fac4ebc5 rp2/machine_pin: Fix configuring OPEN_DRAIN with initial value.
Prior to this commit, Pin(Pin.OPEN_DRAIN, value=0) would not set the
initial value of the open-drain pin to low, instead it would be high.

Signed-off-by: Damien George <damien@micropython.org>
2023-01-24 17:29:45 +11:00
Paul Grayson b208cf23e2 rp2/mphalport: Change order of pin operations to prevent glitches.
When switching from a special function like SPI to an input or output,
there was a brief period after the function was disabled but before the
pin's I/O state was configured, in which the state would be poorly defined.
This fixes the problem by switching off the special function after fully
configuring the I/O state.

Fixes #10226.

Signed-off-by: Paul Grayson <pdg@alum.mit.edu>
2023-01-12 16:36:03 +11:00
robert-hh 8447fef9f9 rp2/mphalport: Add a timeout to mp_hal_stdout_tx_strn().
If USB CDC is connected and the board sends data, but the host does not
receive the data, the device locks up.  This is fixed in this commit by
having a timeout of 500ms, after which time the transmission is skipped.

Fixes issue #9634.
2022-11-09 11:12:53 +11:00
Damien George f72d3cec23 rp2/machine_spi: Add mp_hal_get_spi_obj helper function.
And remove the now-obsolete spi_from_mp_obj() function.

Signed-off-by: Damien George <damien@micropython.org>
2022-08-10 14:05:02 +10:00
Damien George 50e46552c0 rp2: Integrate CYW43xx WiFi driver.
This includes:
- Configuration file for the cyw43-driver.
- Integration of cyw43-driver into the build, using lwIP.
- Enhancements to machine.Pin to support extension IO pins provided by the
  CYW43xx.
- More mp-hal pin helper functions.
- mp_hal_get_mac_ascii MAC address helper function.
- Addition of rp2.country() function to set the country code.

A board can enable this driver by setting MICROPY_PY_NETWORK_CYW43 in their
cmake snippet.

Work done in collaboration with Graham Sanderson and Peter Harper.

Signed-off-by: Damien George <damien@micropython.org>
2022-06-30 17:03:51 +10:00
Andrew Leech bca816f5ac rp2: Add support for using Wiznet hardware as an Ethernet NIC.
Uses the extmod/network_wiznet5k driver to provide network connectivity.

Signed-off-by: Andrew Leech <andrew@alelec.net>
2022-06-03 14:34:29 +10:00
Andrew Leech 05f927b624 rp2/machine_pin: Add mp_hal_pin_interrupt C interface.
So C can can easily configure a pin interrupt and callback.

Signed-off-by: Andrew Leech <andrew@alelec.net>
2022-06-03 14:29:11 +10:00
robert-hh b73d8b045a rp2/machine_bitstream: Implement the machine.bitstream driver.
Timing error is ~20ns at 125MHz, and ~10ns at 250MHz.
2021-11-17 10:01:15 +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