This adds the freq and duty_u16 keyword settings to the constructor, and
sometimes other details in the PWM section.
For mimxrt a clarification regarding the PWM invert argument was added, and
for rp2 a few words were spent on PWM output pairs of a channel/slice.
The PWM.init() method has been added. Calling init() without arguments
restarts a PWM channel stopped with deinit(). Otherwise single parameters
except for "device=n" can be changed again. The device can only be
specified once, either in the constructor or the first init() call.
Also simplify get_pwm_config() and get_adc_config(), and shrink the PWM
object.
ESP-NOW is a proprietary wireless communication protocol which supports
connectionless communication between ESP32 and ESP8266 devices, using
vendor specific WiFi frames. This commit adds support for this protocol
through a new `espnow` module.
This commit builds on original work done by @nickzoic, @shawwwn and with
contributions from @zoland. Features include:
- Use of (extended) ring buffers in py/ringbuf.[ch] for robust IO.
- Signal strength (RSSI) monitoring.
- Core support in `_espnow` C module, extended by `espnow.py` module.
- Asyncio support via `aioespnow.py` module (separate to this commit).
- Docs provided at `docs/library/espnow.rst`.
Methods available in espnow.ESPNow class are:
- active(True/False)
- config(): set rx buffer size, read timeout and tx rate
- recv()/irecv()/recvinto() to read incoming messages from peers
- send() to send messages to peer devices
- any() to test if a message is ready to read
- irq() to set callback for received messages
- stats() returns transfer stats:
(tx_pkts, tx_pkt_responses, tx_failures, rx_pkts, lost_rx_pkts)
- add_peer(mac, ...) registers a peer before sending messages
- get_peer(mac) returns peer info: (mac, lmk, channel, ifidx, encrypt)
- mod_peer(mac, ...) changes peer info parameters
- get_peers() returns all peer info tuples
- peers_table supports RSSI signal monitoring for received messages:
{peer1: [rssi, time_ms], peer2: [rssi, time_ms], ...}
ESP8266 is a pared down version of the ESP32 ESPNow support due to code
size restrictions and differences in the low-level API. See docs for
details.
Also included is a test suite in tests/multi_espnow. This tests basic
espnow data transfer, multiple transfers, various message sizes, encrypted
messages (pmk and lmk), and asyncio support.
Initial work is from https://github.com/micropython/micropython/pull/4115.
Initial import of code is from:
https://github.com/nickzoic/micropython/tree/espnow-4115.
Changes in this commit:
- Change MICROPY_HW_BOARD_NAME definition to match the product name.
- Rename board folder's name to match the product name style.
- Change related files like Makefile, document descriptions, test cases, CI
and tools.
Signed-off-by: Takeo Takahashi <takeo.takahashi.xv@renesas.com>
This replaces the previous pending operation queue (that used to also be
shared with pending server notify/indicate ops) with a single pending
operation per connection. This allows the value handle to be correctly
passed to the Python-level events.
Also re-structure GATT client event handling to simplify the packet handler
functions.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Makes gatts_notify and gatts_indicate work in the same way: by default they
send the DB value, but you can manually override the payload.
In other words, makes gatts_indicate work the same as gatts_notify.
Note: This removes support for queuing notifications and indications on
btstack when the ACL buffer is full. This functionality will be
reimplemented in a future commit.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit adds support for the `timeout` keyword argument to machine.I2C
on the rp2 port, following how it's done on other ports.
The main motivation here is avoid the interpreter crashing due to infinite
loops when SDA is stuck low, which is quite common if the board gets reset
while reading from an I2C device.
A default timeout of 50ms is chosen because it's consistent with:
- Commit a707fe50b0 which used a timeout of
50,000us for zero-length writes on the rp2 port.
- The machine.SoftI2C class which uses 50,000us as the default timeout.
- The stm32 port's hardware I2C, which uses 50,000us for
I2C_POLL_DEFAULT_TIMEOUT_US.
This commit also fixes the default timeout on the esp32 port to be
consistent with the above, and updates the documentation for machine.I2C to
document this keyword argument.
This function seems to work fine in multi-core applications now.
The delay is now in units of microseconds instead of depending on the clock
speed, and is adjustable by board configuration headers.
Also added documentation.
By using the phase jitter between the DFLL48M clock and the FDPLL96M clock.
Even if both use the same reference source, they have a different jitter.
SysTick is driven by FDPLL96M, the us counter by DFLL48M. As a random
source, the us counter is read out on every SysTick and the value is used
to accumulate a simple multiply, add and xor register. According to tests
it creates about 30 bit random bit-flips per second. That mechanism will
pass quite a few RNG tests, has a suitable frequency distribution and
serves better than just the time after boot to seed the PRNG.
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>
This required to add two functions down the stack to uart.c and ra.sci.c.
- One for telling, whther the transmission is busy.
- One for reporting the size of the TX buffer.
Tested with a EK-RA6M2 board.
ADC: The argument of vref=num is an integer. Values for num are:
SAMD21:
0 INT1V 1.0V voltage reference
1 INTVCC0 1/1.48 Analog voltage supply
2 INTVCC1 1/2 Analog voltage supply (only for VDDANA > 2.0V)
3 VREFA External reference
4 VREFB External reference
SAMD51:
0 INTREF internal bandgap reference
1 INTVCC1 Analog voltage supply
2 INTVCC0 1/2 Analog voltage supply (only for VDDANA > 2.0v)
3 AREFA External reference A
4 AREFB External reference B
5 AREFC External reference C (ADC1 only)
DAC: The argument of vref=num is an integer. Suitable values:
SAMD21:
0 INT1V Internal voltage reference
1 VDDANA Analog voltage supply
2 VREFA External reference
SAMD51:
0 INTREF Internal bandgap reference
1 VDDANA Analog voltage supply
2 VREFAU Unbuffered external voltage reference (not buffered in DAC)
4 VREFAB Buffered external voltage reference (buffered in DAC).
This change makes it so the compiler and persistent code loader take a
mp_compiled_module_t* as their last argument, instead of returning this
struct. This eliminates a duplicate context variable for all callers of
these functions (because the context is now stored in the
mp_compiled_module_t by the caller), and also eliminates any confusion
about which context to use after the mp_compile_to_raw_code or
mp_raw_code_load function returns (because there is now only one context,
that stored in mp_compiled_module_t.context).
Reduces code size by 16 bytes on ARM Cortex-based ports.
Signed-off-by: Damien George <damien@micropython.org>
On MacOS and Windows there are a few default serial devices that are
returned by `serial.tools.list_ports.comports()`. For example on MacOS:
```
{'description': 'n/a',
'device': '/dev/cu.Bluetooth-Incoming-Port',
'hwid': 'n/a',
'interface': None,
'location': None,
'manufacturer': None,
'name': 'cu.Bluetooth-Incoming-Port',
'pid': None,
'product': None,
'serial_number': None,
'vid': None}
{'description': 'n/a',
'device': '/dev/cu.wlan-debug',
'hwid': 'n/a',
'interface': None,
'location': None,
'manufacturer': None,
'name': 'cu.wlan-debug',
'pid': None,
'product': None,
'serial_number': None,
'vid': None}
```
Users of mpremote most likely do not want to connect to these ports. It
would be desirable if mpremote did not select this ports when using the
auto connect behavior. These serial ports do not have USB VID or PID
values and serial ports for Micropython boards with FTDI/serial-to-USB
adapter or native USB CDC/ACM support do.
Check for the presence of a USB VID / PID int value when selecting a
serial port to auto connect to. All serial ports will still be listed by
the `list` command and can still be selected by name when connecting.
Signed-off-by: Michael Mogenson <michael.mogenson@gmail.com>
This shows how ports can add their own custom types/classes.
It is part of the unix coverage build, so we can use it for tests too.
Signed-off-by: Laurens Valk <laurens@pybricks.com>
Prior to this commit, the actual I2C frequency can be faster than specified
one and it may exceed the I2C's specification for Fast Mode. The frequency
of SCL should be less than or equal to 400KHz in Fast Mode.
This commit fixes this issue for F4 MCUs by rounding up the division in the
frequency calculation.
Changes in this commit:
- Change file system size from 128KB to 64KB in ra6m1_ek.ld.
- Change EK-RA6M1's file system size in renesas-ra port document.
Signed-off-by: Takeo Takahashi <takeo.takahashi.xv@renesas.com>
When looking at latest (the default for docs.micropython.org), make it
clear that this isn't the release version.
- Changes the version in the top-left to "latest".
- Adds a message to the top of each page to explain.
For future release versions, add a short message to link to the latest
version.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Removes the need for the port to add anything to OBJS or SRC_QSTR.
Also makes it possible for user-C-modules to differentiate between code
that should be processed for QSTR vs other files (e.g. helpers and
libraries).
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This supports the same package sources as the new `mip` tool.
- micropython-lib (by name)
- http(s) & github packages with json description
- directly downloading a .py/.mpy file
The version is specified with an optional `@version` on the end of the
package name. The target dir, index, and mpy/no-mpy can be set through
command line args.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Updates all README.md and docs, and manifests to `require("mip")`.
Also extend and improve the documentation on freezing and packaging.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
robert-hh
Christian Clauss
Glenn Moloney
algonell
Damien George
Takeo Takahashi
Jim Mussared
David (Pololu)
David Grayson
enriquezgarc
Chris Overgaauw
LiaoJingyi_winY7kp
Dorukyum
Paul Warren
Stig Bjørlykke
David Lechner
Laurens Valk
Michael Mogenson
yn386
TPReal
Peter Hinch
Sky
Howard Lovatt
Matt Trentini