Commit Graph

966 Commits

Author SHA1 Message Date
IhorNehrutsa 71111cffba docs/esp32: Explain ESP32 PWM modes, timers, and channels. 2021-09-21 23:28:16 +10:00
Jim Mussared b326edf68c all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE.
This commit removes all parts of code associated with the existing
MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE optimisation option, including the
-mcache-lookup-bc option to mpy-cross.

This feature originally provided a significant performance boost for Unix,
but wasn't able to be enabled for MCU targets (due to frozen bytecode), and
added significant extra complexity to generating and distributing .mpy
files.

The equivalent performance gain is now provided by the combination of
MICROPY_OPT_LOAD_ATTR_FAST_PATH and MICROPY_OPT_MAP_LOOKUP_CACHE (which has
been enabled on the unix port in the previous commit).

It's hard to provide precise performance numbers, but tests have been run
on a wide variety of architectures (x86-64, ARM Cortex, Aarch64, RISC-V,
xtensa) and they all generally agree on the qualitative improvements seen
by the combination of MICROPY_OPT_LOAD_ATTR_FAST_PATH and
MICROPY_OPT_MAP_LOOKUP_CACHE.

For example, on a "quiet" Linux x64 environment (i3-5010U @ 2.10GHz) the
change from CACHE_MAP_LOOKUP_IN_BYTECODE, to LOAD_ATTR_FAST_PATH combined
with MAP_LOOKUP_CACHE is:

diff of scores (higher is better)
N=2000 M=2000       bccache -> attrmapcache      diff      diff% (error%)
bm_chaos.py        13742.56 ->   13905.67 :   +163.11 =  +1.187% (+/-3.75%)
bm_fannkuch.py        60.13 ->      61.34 :     +1.21 =  +2.012% (+/-2.11%)
bm_fft.py         113083.20 ->  114793.68 :  +1710.48 =  +1.513% (+/-1.57%)
bm_float.py       256552.80 ->  243908.29 : -12644.51 =  -4.929% (+/-1.90%)
bm_hexiom.py         521.93 ->     625.41 :   +103.48 = +19.826% (+/-0.40%)
bm_nqueens.py     197544.25 ->  217713.12 : +20168.87 = +10.210% (+/-3.01%)
bm_pidigits.py      8072.98 ->    8198.75 :   +125.77 =  +1.558% (+/-3.22%)
misc_aes.py        17283.45 ->   16480.52 :   -802.93 =  -4.646% (+/-0.82%)
misc_mandel.py     99083.99 ->  128939.84 : +29855.85 = +30.132% (+/-5.88%)
misc_pystone.py    83860.10 ->   82592.56 :  -1267.54 =  -1.511% (+/-2.27%)
misc_raytrace.py   21490.40 ->   22227.23 :   +736.83 =  +3.429% (+/-1.88%)

This shows that the new optimisations are at least as good as the existing
inline-bytecode-caching, and are sometimes much better (because the new
ones apply caching to a wider variety of map lookups).

The new optimisations can also benefit code generated by the native
emitter, because they apply to the runtime rather than the generated code.
The improvement for the native emitter when LOAD_ATTR_FAST_PATH and
MAP_LOOKUP_CACHE are enabled is (same Linux environment as above):

diff of scores (higher is better)
N=2000 M=2000        native -> nat-attrmapcache  diff      diff% (error%)
bm_chaos.py        14130.62 ->   15464.68 :  +1334.06 =  +9.441% (+/-7.11%)
bm_fannkuch.py        74.96 ->      76.16 :     +1.20 =  +1.601% (+/-1.80%)
bm_fft.py         166682.99 ->  168221.86 :  +1538.87 =  +0.923% (+/-4.20%)
bm_float.py       233415.23 ->  265524.90 : +32109.67 = +13.756% (+/-2.57%)
bm_hexiom.py         628.59 ->     734.17 :   +105.58 = +16.796% (+/-1.39%)
bm_nqueens.py     225418.44 ->  232926.45 :  +7508.01 =  +3.331% (+/-3.10%)
bm_pidigits.py      6322.00 ->    6379.52 :    +57.52 =  +0.910% (+/-5.62%)
misc_aes.py        20670.10 ->   27223.18 :  +6553.08 = +31.703% (+/-1.56%)
misc_mandel.py    138221.11 ->  152014.01 : +13792.90 =  +9.979% (+/-2.46%)
misc_pystone.py    85032.14 ->  105681.44 : +20649.30 = +24.284% (+/-2.25%)
misc_raytrace.py   19800.01 ->   23350.73 :  +3550.72 = +17.933% (+/-2.79%)

In summary, compared to MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE, the new
MICROPY_OPT_LOAD_ATTR_FAST_PATH and MICROPY_OPT_MAP_LOOKUP_CACHE options:
- are simpler;
- take less code size;
- are faster (generally);
- work with code generated by the native emitter;
- can be used on embedded targets with a small and constant RAM overhead;
- allow the same .mpy bytecode to run on all targets.

See #7680 for further discussion.  And see also #7653 for a discussion
about simplifying mpy-cross options.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-09-16 16:04:03 +10:00
Jim Mussared e3eebc329f stm32: Suggest putting code in main.py not boot.py.
Don't want users to accidentally use boot.py (because recovering requires
knowing how to activate safe mode).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-09-16 12:40:05 +10:00
Peter Hinch 4552f1816b docs/library/machine.I2S.rst: Specify that I2S.shift args are kw-only. 2021-09-13 18:21:46 +10:00
Ihor Nehrutsa c7842f4798 docs/make.bat: Change Windows output dir from '_build' to 'build'.
To match the output file used by Makefile.
2021-09-13 18:15:38 +10:00
Matt Trentini 60d3a3c3a0 docs/library/bluetooth.rst: Update incorrect link to gatts_write. 2021-09-10 15:24:02 +10:00
Peter Hinch cc0884bb4f docs/library/os.rst: Clarify littlefs requirements for block erase. 2021-09-10 15:21:12 +10:00
Damien George 7c54b64280 all: Bump version to 1.17.
Signed-off-by: Damien George <damien@micropython.org>
2021-09-02 00:07:13 +10:00
Peter Hinch 3720a570f2 docs/reference: Mention that slicing a memoryview causes allocation. 2021-08-30 23:55:29 +10:00
Fernando 4954290e86 docs/esp8266: Use monospace for software tools.
Signed-off-by: Fernando <fepegar@gmail.com>
2021-08-30 23:51:27 +10:00
Fernando 577a3c4192 docs/library: Fix usage of :term: for frozen module reference.
Signed-off-by: Fernando <fepegar@gmail.com>
2021-08-30 23:51:18 +10:00
Peter Hinch 2296df0a32 extmod/modframebuf: Enable blit between different formats via a palette.
This achieves a substantial performance improvement when rendering glyphs
to color displays, the benefit increasing proportional to the number of
pixels in the glyph.
2021-08-25 15:31:23 +10:00
Jim Mussared 53145c4c5f docs: Add docs for machine.bitstream and neopixel module.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-19 22:50:32 +10:00
Jim Mussared 44818d1a35 docs/library/network.rst: Simplify socket import.
Replace `import socket as socket` with `import socket`.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-17 11:26:24 +10:00
Jim Mussared af162257d3 docs/library/builtins.rst: Add module title.
This fixes the rendering on library/index.rst.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-17 11:26:24 +10:00
Jim Mussared 1d9e489af3 extmod/modbluetooth: Add send_update arg to gatts_write.
This allows the write to trigger a notification or indication, but only to
subscribed clients. This is different to gatts_notify/gatts_indicate,
which will unconditionally notify/indicate.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-14 22:21:55 +10:00
Jim Mussared d7fbc755dc docs/library/index.rst: Clarify module naming and purpose.
Adds section about extending built-in modules from Python.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-13 23:14:08 +10:00
Jim Mussared c737cde947 docs: Replace ufoo with foo in all docs.
Anywhere a module is mentioned, use its "non-u" name for consistency.

The "import module" vs "import umodule" is something of a FAQ, and this
commit intends to help clear that up.  As a first approximation MicroPython
is Python, and so imports should work the same as Python and use the same
name, to a first approximation.  The u-version of a module is a detail that
can be learned later on, when the user wants to understand more and have
finer control over importing.

Existing Python code should just work, as much as it is possible to do that
within the constraints of embedded systems, and the MicroPython
documentation should match the idiomatic way to write Python code.

With universal weak links for modules (via MICROPY_MODULE_WEAK_LINKS) users
can consistently use "import foo" across all ports (with the exception of
the minimal ports).  And the ability to override/extend via "foo.py"
continues to work well.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-13 22:53:29 +10:00
Jim Mussared 218606351c docs: Rename ufoo.rst to foo.rst.
This is a simple rename of the files, no content changes
(other than updating index.rst to use the new paths)

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-13 20:31:32 +10:00
Damien George 671f012306 docs/templates: Add unix and zephyr quickref links to top-index.
Signed-off-by: Damien George <damien@micropython.org>
2021-08-13 20:21:21 +10:00
Julia Hathaway 6ed6990625 docs/library/zephyr: Add libraries specific to the Zephyr port.
Includes documentation for Zephyr specific modules (zephyr and zsensor),
classes (DiskAccess and FlashArea), and functions.

Signed-off-by: Julia Hathaway <julia.hathaway@nxp.com>
2021-08-13 20:21:14 +10:00
Julia Hathaway 333e16521b docs/zephyr: Add quick reference for the Zephyr port.
Includes an introduction to using the Zephyr port on MicroPython.  The
quickref details examples of how to use each module the port currently
supports.  The tutorial provides additional details for Zephyr specific
modules.

Signed-off-by: Julia Hathaway <julia.hathaway@nxp.com>
2021-08-13 20:20:57 +10:00
Damien George 45f9a38451 docs/library/machine.I2S.rst: Fix use of sd pin in examples.
Signed-off-by: Damien George <damien@micropython.org>
2021-08-07 20:40:54 +10:00
Peter Züger ffc854f17f extmod/modujson: Add support for dump/dumps separators keyword-argument.
Optionally enabled via MICROPY_PY_UJSON_SEPARATORS.  Enabled by default.

For dump, make sure mp_get_stream_raise is called after
mod_ujson_separators since CPython does it in this order (if both
separators and stream are invalid, separators will raise an exception
first).

Add separators argument in the docs as well.

Signed-off-by: Peter Züger <zueger.peter@icloud.com>
Signed-off-by: Damien George <damien@micropython.org>
2021-08-07 13:52:16 +10:00
Damien George 8616129f2e esp8266,esp32: Include hidden networks in WLAN.scan results.
Addresses issues #2697 and #5329.

Signed-off-by: Damien George <damien@micropython.org>
2021-08-07 13:28:34 +10:00
Will Sowerbutts a3675294ae esp32/machine_uart: Add flow kw-arg to enable hardware flow control.
This enables optional support for the hardware UART to use the RTS and/or
CTS pins for flow control.

The new "flow" constructor keyword specifies a bitmask of RTS and/or CTS.
This matches the interface used by machine.UART on stm32 and rp2.

Previously on ESP32 it was possible to specify which pins to use for the
RTS and CTS signals, but hardware flow control was never functional: CTS
was not checked before transmitting bytes, and RTS was always driven high
(signalling no buffer space available).  With this patch, CTS and RTS both
operate as expected.

This also includes an update to the machine.UART documentation.

Signed-off-by: Will Sowerbutts <will@sowerbutts.com>
2021-08-04 13:52:15 +10:00
Damien George 7f69246895 docs/library/uasyncio.rst: Document stream readexactly() method.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-22 22:39:04 +10:00
Damien George a5221c47eb docs/library/utime.rst: Clarify behaviour and precision of sleep ms/us.
This description is based on the existing bare-metal ports implementations.

Signed-off-by: Damien George <damien@micropython.org>
2021-07-22 00:07:37 +10:00
NitiKaur 6a9133a8b5 docs/rp2: Update general section to give a brief technical overview. 2021-07-20 00:26:37 +10:00
NitiKaur da74ef6615 docs/rp2: Enhance quickref and change image to Pico pinout. 2021-07-20 00:21:06 +10:00
David P fdd5b18133 docs: Replace master/slave with controller/peripheral in I2C and SPI.
See https://www.oshwa.org/a-resolution-to-redefine-spi-signal-names
2021-07-18 11:19:44 +10:00
Damien George 136369d72f all: Update to point to files in new shared/ directory.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-12 17:08:10 +10:00
finefoot e10a044d7c docs/esp8266/tutorial: Change flash mode from dio to dout.
For some boards, even -fm dio is too fast and they require -fm dout.  This
commit links to the esptool wiki about available flash modes and changes
dio to dout.
2021-07-07 21:15:58 +10:00
Tom McDermott c1f74b3005 docs/library: Warn that ustruct doesn't handle spaces in format strings.
And also add a test to capture the CPython difference.
2021-07-06 14:59:50 +10:00
Mike Teachman 8a5bfe44a5 esp32,stm32: Add new machine.I2S class for I2S protocol support.
This commit adds I2S protocol support for the esp32 and stm32 ports, via
a new machine.I2S class.  It builds on the stm32 work of blmorris, #1361.

Features include:
- a consistent I2S API across the esp32 and stm32 ports
- I2S configurations supported:
  - master transmit and master receive
  - 16-bit and 32-bit sample sizes
  - mono and stereo formats
  - sampling frequency
  - 3 modes of operation:
    - blocking
    - non-blocking with callback
    - uasyncio
  - internal ring buffer size can be tuned
- documentation for Pyboards and esp32-based boards
- tested on the following development boards:
  - Pyboard D SF2W
  - Pyboard V1.1
  - ESP32 with SPIRAM
  - ESP32

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-07-05 23:42:25 +10:00
Jonathan Hogg 0b3332c8e1 docs/library: Document new esp32.RMT features and fix wait_done.
Add new API for specifying the idle level and TX carrier output level, and
new write_pulses modes of operation.  Also fix wait_done documentation
which was inverted and wrong about timing.
2021-07-01 14:44:41 +10:00
Krzysztof Adamski 35b1359a3a rp2: Use 0=Monday datetime convention in RTC.
The RTC in rp2 can store any, even wrong, number as a weekday in RTC.  It
was, however, discussed in #7394 that we would like to unify all ports and
use 0 as Monday, not Sunday in the machine.RTC implementation.

This patch makes sure that the default date set in RTC is adheres to this
convention.  It also fixes the example in quickref to use proper weekday to
avoid confusion.

Signed-off-by: Krzysztof Adamski <k@japko.eu>
2021-06-25 10:29:12 +10:00
Damien George 63b8b79610 stm32/usb: Make irq's default trigger enable all events.
Following how other .irq() methods work on other objects.

Signed-off-by: Damien George <damien@micropython.org>
2021-06-23 16:11:37 +10:00
Jim Mussared 2fa975c264 LICENSE: Reference third-party licenses.
This is to provide a summary of the licenses used by MicroPython.

- Add SPDX identifier for every directory that includes
  non-MIT-licensed content.
- Add brief summary.
- Update docs license to be more explicit.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-06-22 15:50:47 +10:00
Damien George 7c51cb2307 all: Bump version to 1.16.
Signed-off-by: Damien George <damien@micropython.org>
2021-06-18 16:38:06 +10:00
Thomas Wenrich 364670ecf1 docs/esp32: Document WLAN "reconnects" config option. 2021-06-17 18:48:17 +10:00
Mike Teachman b0b8ebc4f6 extmod/uasyncio: Add readinto() method to Stream class.
With docs and a multi-test using TCP server/client.

This method is a MicroPython extension, although there is discussion of
adding it to CPython: https://bugs.python.org/issue41305

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-06-15 13:13:35 +10:00
Peter Hinch c0499bc2b9 docs/library/machine.RTC.rst: Document datetime method and fix ex code.
This is the minimum change to fix the example code so it actually runs on
the majority of ports.
2021-06-12 22:53:49 +10:00
Damien George 71e3538a32 stm32/usb: Add USB_VCP.irq method, to set a callback on USB data RX.
Usage:

    usb = pyb.USB_VCP()
    usb.irq(lambda u:print(u, u.read()), usb.IRQ_RX)

Signed-off-by: Damien George <damien@micropython.org>
2021-06-10 15:26:21 +10:00
Matt Trentini a6a8941d84 docs/rp2: Add skeleton docs for the rp2 port. 2021-05-30 22:31:34 +10:00
Mike Causer 47b778332a all: Replace busses with buses.
"buses" is the widely accepted plural form of "bus".
2021-05-20 23:22:03 +10:00
Andrew Leech 9d58d46e0a docs/library/pyb.Pin.rst: Update the arguments for Pin.init().
Add details for Pin.init() value and alt arguments.
2021-05-20 23:08:43 +10:00
Brett Cannon 452fa3f8d4 docs/library: Add a blank line to fix formatting for ussl docs. 2021-05-18 12:27:57 +10:00
Brett Cannon 07528d1f85 docs/library: Clarify what type of algorithm is implemented in heapq. 2021-05-18 12:24:21 +10:00
Mike Causer 97fee47716 docs/esp8266: Add SSD1306 to quickref and tutorial. 2021-05-14 12:04:21 +10:00