Commit Graph

48 Commits (d7a9388fe0ac3b6df9e5994da1343488b17469cd)

Author SHA1 Message Date
Damien George d7a9388fe0 ports: Add new make target "submodules" which inits required modules. 2019-10-15 17:14:41 +11:00
Jim Mussared cd8bbf4cfc esp32/boards: Enable BLE by default when building with IDF 4.x. 2019-10-08 14:50:01 +11:00
Jim Mussared 6a9bd1c1ab esp32: Implement BLE using Nimble from IDF 4.x. 2019-10-08 14:50:01 +11:00
Jim Mussared c33a4cc213 esp32/Makefile: Fix printing of supported git hash. 2019-09-20 14:37:53 +10:00
Jim Mussared f469634c0c esp32: Add check to Makefile that the toolchain is in PATH. 2019-09-17 12:26:47 +10:00
Jim Mussared 970f798ea9 esp32: Add check to Makefile for pyparsing version. 2019-09-17 12:26:42 +10:00
Jim Mussared 96008ff59a esp32: Support building with ESP IDF 4.0-beta1.
This commit adds support for a second supported hash (currently set to the
4.0-beta1 tag).  When this hash is detected, the relevant changes are
applied.

This allows to start using v4 features (e.g. BLE with Nimble), and also
start doing testing, while still supporting the original, stable, v3.3 IDF.

Note: this feature is experimental, not well tested, and network.LAN and
network.PPP are currently unsupported.
2019-09-17 12:25:36 +10:00
Damien George 356a728bd0 esp32/Makefile: Add SDKCONFIG_H to QSTR_GLOBAL_REQUIREMENTS.
Fixes issue #5091.
2019-09-12 18:16:16 +10:00
Braden Mars 5641aa55dd esp32: Update to use ESP IDF v3.3
Includes patches for CVE-2019-12586 & CVE-2019-12587
2019-09-07 01:28:11 -05:00
Jim Mussared 50482cdc0c esp32/Makefile: Fix subst->patsubst in ESPIDF_BOOTLOADER_SUPPORT_O. 2019-09-03 23:21:50 +10:00
Damien George 05eb897d06 esp32: Add esp32.Partition class to expose partition and OTA funcs.
Partitions are exposed as a standard MicroPython block device.
2019-08-20 16:49:18 +10:00
Jim Mussared 8db517f26d esp32: Add per-board configs, following other ports.
Replaces the `SDKCONFIG` makefile variable with `BOARD`.  Defaults to
BOARD=GENERIC.  spiram can be enabled with `BOARD=GENERIC_SPIRAM`

Add example definition for TINYPICO, currently identical to GENERIC_SPIRAM
but with custom board/SoC names for the uPy banner.
2019-08-16 00:22:29 +10:00
Damien George 2ccf030fd1 esp32: Add support for mDNS queries and responder.
They are both enabled by default, but can be disabled by defining
MICROPY_HW_ENABLE_MDNS_QUERIES and/or MICROPY_HW_ENABLE_MDNS_RESPONDER to
0.  The hostname for the responder is currently taken from
tcpip_adapter_get_hostname() but should eventually be configurable.
2019-08-15 16:36:47 +10:00
Damien George 7c15e50eb8 esp32/Makefile: Include CFLAGS_EXTRA in CFLAGS definition.
Following other ports, so builds can be customised more easily, eg on the
command line building with a user C-module.
2019-07-30 17:31:23 +10:00
Damien George e3e7e3a781 esp32/Makefile: Simplify include of IDF source by using wildcards. 2019-07-20 14:07:18 +10:00
Damien George b88e51d718 esp32/Makefile: Put OBJ and LIB rule additions in gen_espidf_lib_rule. 2019-07-20 13:04:55 +10:00
Jim Mussared 331c224e07 esp32/Makefile: Fix path expansion for ESPIDF_DRIVER_O.
It was using subst to s/.c/.o/ which changed .c anywhere in the path.
2019-07-20 12:32:43 +10:00
Damien George a29334761d esp32: Add support for hardware I2C. 2019-07-19 16:31:25 +10:00
Josh Lloyd 2f262d5f9a esp32/Makefile: Include all driver/*.c source files in the build.
Fixes #4869.
2019-06-25 15:12:34 +10:00
Damien George 3ee3995be1 esp32: Update to use ESP IDF v3.3-beta3.
This updates ESP IDF to use v3.3-beta3.  And also adjusts README.md to
point to stable docs which provide a link to download the correct toolchain
for this IDF version, namely 1.22.0-80-g6c4433a-5.2.0
2019-06-19 14:32:15 +10:00
Nicko van Someren 8e3af7d4c8 esp32: Add machine.SDCard class using built-in HW SD/MMC controller.
This adds support for SD cards using the ESP32's built-in hardware SD/MMC
host controller, over either the SDIO bus or SPI.  The class is available
as machine.SDCard and using it can be as simple as:

    uos.mount(machine.SDCard(), '/sd')
2019-06-03 00:37:41 +10:00
Damien George fcace26d87 esp32/Makefile: Add some missing IDF source files to bootloader and app.
Functions in these files may be needed when certain features are enabled
(eg dual core mode), even if the linker does not give a warning or error
about unresolved symbols.
2019-03-11 23:17:09 +11:00
Damien George b5f33ac2cb ports: Update to work with new oofatfs version. 2019-03-05 15:56:39 +11:00
Damien George c33f538066 esp32/modmachine: Add support for changing the CPU frequency. 2019-02-07 22:51:55 +11:00
Damien George 5d88272342 esp32/Makefile: Make sure that directory exists for sdkconfig.h. 2019-01-28 20:41:13 +11:00
Damien George 3d49b157b8 esp32: Update to latest ESP IDF using sdkconfig and new ldgen procedure.
Configuration for the build is now specified using sdkconfig rather than
sdkconfig.h, which allows for much easier configuration with defaults from
the ESP IDF automatically applied.  sdkconfig.h is generated using the new
ESP IDF kconfig_new tool written in Python.  Custom configuration for a
particular ESP32 board can be specified via the make variable SDKCONFIG.

The esp32.common.ld file is also now generated using the standard ESP IDF
ldgen.py tool.
2019-01-28 12:44:03 +11:00
Damien George f59904f799 esp32/Makefile: Put all IDF compenents in .a libs to use IDF ld script.
When the ESP IDF builds a project it puts all separate components into
separate .a library archives.  And then the esp32.common.ld linker script
references these .a libraries by explicit name to put certain object files
in iRAM.

This patch does a similar thing for the custom build system used here,
putting all IDF .o's into their respective .a.  So a custom linker script
is no longer needed.
2019-01-28 12:41:37 +11:00
Damien George eb446ec227 esp32/Makefile: Use system provided math library rather than uPy one.
The ESP IDF system already provides a math library, and that one is likely
to be better tuned to the Xtensa architecture.  The IDF components are also
tested against its own math library, so best not to override it.  Using the
system provided library also allows to easily switch to double-precision
floating point by changing MICROPY_FLOAT_IMPL to MICROPY_FLOAT_IMPL_DOUBLE.
2019-01-17 16:43:20 +11:00
Eric Poulsen 3c6f639aa5 esp32/network_ppp: Add PPPoS functionality.
This commit adds network.PPP(stream) which allows to create a TCP/IP
network interface over a stream object (eg a UART).
2018-10-19 23:32:02 +11:00
Damien George 48d736f491 esp32: Update to latest ESP IDF.
Among other things, this requires putting bootloader object files in to
their relevant .a archive, so that they can be correctly referenced by the
ESP IDF's linker script.
2018-08-14 16:45:37 +10:00
Damien George d61d119c94 esp32: Update to latest ESP IDF. 2018-06-15 16:23:53 +10:00
Damien George 0501427907 esp32: Remove port-specific uhashlib implementation and use common one.
Now that the common module has mbedtls support for both SHA1 and SHA256 it
can now be used on this port.
2018-06-12 13:50:11 +10:00
Damien George a90124a9e2 esp32: Add support for building with external SPI RAM.
This patch adds support for building the firmware with external SPI RAM
enabled.  It is disabled by default because it adds overhead (due to
silicon workarounds) and reduces performance (because it's slower to have
bytecode and objects stored in external RAM).

To enable it, either use "make CONFIG_SPIRAM_SUPPORT=1", or add this line
to you custom makefile/GNUmakefile (before "include Makefile"):

    CONFIG_SPIRAM_SUPPORT = 1

When this option is enabled the MicroPython heap is automatically allocated
in external SPI RAM.

Thanks to Angus Gratton for help with the compiler and linker settings.
2018-06-05 13:57:59 +10:00
Angus Gratton bc92206f89 esp32/Makefile: Extract common C & C++ flags for consistent compilation. 2018-06-05 13:05:12 +10:00
Damien George 2923671a0c esp32/Makefile: Update to latest ESP IDF version. 2018-05-21 11:28:36 +10:00
Bas Wijnen 67e1a4f8be esp32: Update to latest ESP IDF version.
- Updated supported git hash to current IDF version.
- Added missing targets and includes to Makefile.
- Updated error codes for networking module.
- Added required constant to sdkconfig configuration.
2018-05-14 11:42:46 +10:00
Andreas Valder 298c072433 esp32: Add support for the esp32's ULP.
The ULP is available as esp32.ULP().  See README.ulp.md for basic usage.
2018-05-01 16:19:37 +10:00
Damien George 58ebeca6a9 drivers/bus: Pull out software SPI implementation to dedicated driver.
This patch takes the software SPI implementation from extmod/machine_spi.c
and moves it to a dedicated file in drivers/bus/softspi.c.  This allows the
SPI driver to be used independently of the uPy runtime, making it a more
general component.
2018-03-10 00:59:43 +11:00
Damien George c49a73ab0e esp32: Update to the latest ESP IDF.
This update requires a new ESP32 toolchain: 1.22.0-80-g6c4433a-5.2.0.
2018-02-21 14:24:10 +11:00
Eric Poulsen abec47a1cd esp32/modesp32: Add new module "esp32" to support extra wake features.
The machine.Pin class is also updated to support these wake-on-pin
features.
2018-02-17 00:49:05 +11:00
Eric Poulsen 44033a1d27 esp32/machine_rtc: Add RTC class to machine module with sleep impl.
The machine.RTC class is added and the machine module is updated with the
implementation of sleep, deepsleep, reset_cause and wake_reason.
2018-02-17 00:47:17 +11:00
Ayke van Laethem f16c775a07 esp32/README: Update toolchain setup. 2017-12-22 16:27:24 +11:00
Eric Poulsen 19c7098e18 esp32: Add custom partitions.csv file with uPy specific size. 2017-12-13 15:51:04 +11:00
Damien George 0593d6f562 esp32/Makefile: Support using IDF_PATH as the env var to the IDF source. 2017-12-13 14:56:28 +11:00
Eric Poulsen 29dd6a7678 esp32: Implement wired Ethernet via network.LAN().
Updates to Makefile, modnetwork.c, and addition of network_lan.c to
implement `network.LAN()` object for wired PHY objects.
2017-12-13 14:48:53 +11:00
Damien George 48613b6011 esp32: Update to latest ESP IDF.
This update requires the xtensa-esp32-elf to be upgraded to the latest
version, 1.22.0-73-ge28a011-5.2.0.
2017-12-13 14:48:53 +11:00
Eric Poulsen 31747fe266 esp32: Implement machine.WDT() class. 2017-12-13 14:48:53 +11:00
Damien George bc08c884a2 esp32: Add new port to Espressif ESP32 SoC.
This commit is a combination of 216 commits from the initial stages of
development of this port, up to and including the point where the code was
moved to the ports/esp32 directory.  These commits were mostly concerned
with setting up the build system and getting a reliable port working with
basic features.  The following is a digest of the original commits in their
original order (most recent listed first), grouped where possible per
author.  The list is here to give credit for the work and provide some
level of traceability and accountability.  For the full history of
development please consult the original repository.

All code is MIT licensed and the relevant copyright holders are listed in
the comment-header of each file.

Damien George <damien.p.george@gmail.com>
  esp32: Update to latest ESP IDF.
  esp32: Update module symlinks now that code lives under the ports dir.
  esp32: Update to compile with new ports/esp32 directory structure.
  esp32: Move it to the ports/ directory.
  esp32/machine_uart: Don't save baudrate but compute it instead.
  esp32/modsocket: Add socket.readinto() method.
  esp32/modesp: Add esp.gpio_matrix_in and esp.gpio_matrix_out functions.
  esp32/machine_uart: Wait for all data to be tx'd before changing config.

NyxCode <moritz.bischof1@gmail.com>
  esp32: Add note to README.md about updating the submodules of ESP IDF.

Anthony Briggs <anthony.briggs@gmail.com>
  esp32: Update README.md installation and flashing instructions.

Javier Candeira <javier@candeira.com>
  esp32: Raise error when setting input-only pin to output.

  With help from Adrian Smith (fon@thefon.net)

Javier Candeira <javier@candeira.com>
  esp32: Replace exception raising with corresponding mp_raise_XXX funcs.

Tisham Dhar <whatnickd@gmail.com>
  esp32: Add some specific notes about building on Windows using WSL.

Ben Gamari <ben@smart-cactus.org>
  esp32: Provide machine.Signal class.

Damien George <damien.p.george@gmail.com>
  esp32/modnetwork: Implement AP version of network.isconnected().

Eric Poulsen <eric@zyxod.com>
  esp32/README.md: Add note about btree submodule initialization.

Damien George <damien.p.george@gmail.com>
  esp32: Make firmware.bin start at 0x1000 to allow flash size autodetect.
  esp32: Changes to follow latest version of upstream uPy.
  esp32/Makefile: Separate ESP-specific inc dirs to avoid header clashes.
  esp32: Enable "btree" database module.
  esp32: Update to latest ESP IDF.

Roosted7 <thomasroos@live.nl>
  esp32: Update to latest ESP-IDF.

Alex King <alex_w_king@yahoo.com>
  esp32/machine_timer: Add support for esp32 hardware timer.

  Code lineage:
  Timer() is based loosely on the version in esp8266, although the
  implementation is differs significantly because of the change in
  the underlying platform.

Damien George <damien.p.george@gmail.com>
  esp32/machine_uart: Increase UART TX buffer size to 64.
  esp32/modules: Update dht symlink.
  esp32/mpconfigport.h: Enable utimeq module, needed for uasyncio.
  esp32: Changes to follow latest version of upstream uPy.
  esp32: Update to latest ESP-IDF.
  esp32/machine_uart: Add uart.any() method.
  esp32/machine_uart: Uninstall the UART driver before installing it.

Thomas Roos <mail@thomasroos.nl>
  esp32: Update to latest ESP-IDF.

Eric Poulsen <eric@zyxod.com>
  esp32/modsocket: Make read/write return None when in non-blocking mode.
  esp32/modsocket.c: Fix send/sendto/write for non-blocking sockets.

Odd Stråbø <oddstr13@openshell.no>
  esp32: Initial working implementation of machine.UART.

  Code lineage (as seen by previous commits): I copied the ESP8266 code,
  renamed pyb -> machine, and used esp-idf as a reference while implementing
  minimal functionality.  I provide all of my changes under the MIT license.

Odd Stråbø <oddstr13@openshell.no>
  esp32/machine_uart: Rename pyb to machine.
  esp32: Copy machine_uart.c from esp8266 port.

Damien George <damien.p.george@gmail.com>
  esp32/moduos: Add uos.ilistdir() function.
  esp32: Mount filesystem at the root of the VFS, following esp8266.

Andy Valencia <vandyswa@gmail.com>
  esp32: Add hardware SHA1/SHA256 support via mbedtls API.

  Code lineage: a copy of extmod/moduhashlib with the API invocation details
  edited.  Total derivative work.

Andy Valencia <vandyswa@gmail.com>
  esp32: Add PWM support via machine.PWM class.

  Code lineage:
  I started by copying the esp8266 machine_pwm.c. I used information from the
  ESP32 Technical Reference Manual, the esp-idf documentation, and the SDK's
  sample ledc example code (but I did not copy that code, just studied it to
  understand the SDK's API for PWM). So aside from the code copied from the
  esp8266 PWM support, everything else you see is just new code I wrote.

  I wasn't an employee of anybody when I wrote it, and I wrote it with the
  understanding and intention that it's simply a derivative work of the
  existing micropython code. I freely and willingly contribute it to the
  project and intend that it not change the legal status of the micropython
  code base in any way, even if it is included in that base in whole or part.

Damien George <damien.p.george@gmail.com>
  esp32/modules: Add symlinks for upysh and upip.

Eric Poulsen <eric@zyxod.com>
  esp32/modmachine: Add unique_id() function to machine module.

Damien George <damien.p.george@gmail.com>
  esp32: Change dac_out_voltage to dac_output_voltage for new IDF API.
  esp32: Update esp32.custom_common.ld to align with changes in ESP IDF.

Eric Poulsen <eric@zyxod.com>
  esp32: Update to latest ESP IDF.

Damien George <damien.p.george@gmail.com>
  esp32/modsocket: When resolving IP addr handle the case of host=''.
  esp32: Update to latest ESP IDF.

Eric Poulsen <eric@zyxod.com>
  esp32/Makefile: Change default FLASH_MODE to dio for WROOM-32 module.
  esp32: Move FAT FS to start at 0x200000 and increase size to 2MiB.

Damien George <damien.p.george@gmail.com>
  esp32: Remove enable_irq/disable_irq and use ATOMIC_SECTION instead.
  esp32/mpconfigport.h: Provide ATOMIC_SECTION macros.
  esp32/main: Restart the MCU if there is a failed NLR jump.

Daniel Campora <daniel@pycom.io>
  esp32: Enable threading; be sure to exit GIL when a thread will block.
  esp32: Trace the registers when doing a gc collect. Also make it thread ready.
  esp32: Add threading implementation, disabled for the time being.

Damien George <damien.p.george@gmail.com>
  esp32: Update to latest ESP IDF.
  esp32/uart: Use high-level function to install UART0 RX ISR handler.
  esp32/Makefile: Make FreeRTOS private include dir really private.

Eric Poulsen <eric@zyxod.com>
  esp32: Add support for hardware SPI peripheral (block 1 and 2).

Sergio Conde Gómez <skgsergio@gmail.com>
  esp32/modules/inisetup.py: Mount filesystem at /flash like ESP8266

Damien George <damien.p.george@gmail.com>
  esp32: Convert to use core-provided KeyboardInterrupt exception.
  esp32: Pump the event loop while waiting for rx-chr or delay_ms.
  esp32: Implement Pin.irq() using "soft" scheduled interrupts.
  esp32: Update to latest ESP IDF version.

Eric Poulsen <eric@zyxod.com>
  esp32/README: Add troubleshooting section to the end.

tyggerjai <tyggerjai@gmail.com>
  esp32: Add support for WS2812 and APA106 RGB LEDs.

Damien George <damien.p.george@gmail.com>
  esp32: Add makeimg.py script to build full firmware; use it in Makefile.
  esp32/modsocket: Make socket.read return when socket closes.
  esp32/modsocket: Initialise the timeout on an accepted socket.
  esp32/mphalport: Provide proper implementations of disable_/enable_irq.
  esp32/modmachine: Add disable_irq/enable_irq functions.

Nick Moore <nick@zoic.org>
  esp32/modsocket.c: add comment explaining timeout behaviour
  esp32/modsocket.c: clean up send methods for retries too
  esp32/modsocket.c: sockets always nonblocking, accept timeout in modsocket
  esp32: Update to latest ESP IDF version.
  esp32/modsocket.c: remove MSG_PEEK workaround on select ioctl.
  esp32/modsocket.c: Initialize tcp when modsocket loads.

Damien George <damien.p.george@gmail.com>
  esp32/main: Bump heap size from 64k to 96k.
  esp32/modutime: Add time.time() function.
  esp32/modsocket: Convert lwip errnos to uPy ones.
  esp32/modules: Provide symlink to ds18x20 module.
  esp32: Add support for onewire protocol via OneWire module.
  esp32: Add support for DHT11 and DHT22 sensors.
  esp32/mphalport: Improve delay and ticks functions.
  esp32: Update to latest ESP IDF.
  esp32/modules: Provide symlink to urequests from micropython-lib.
  esp32: Populate sys.path.

Nick Moore <nick@zoic.org>
  esp32/machine_dac.c: implement DAC pins as well
  esp32/machine_adc.c: also machine.ADC
  esp32/machine_touchpad.c: add support for touchpad

Damien George <damien.p.george@gmail.com>
  esp32/README: Add hint about using GNUmakefile on case-insensitive FS.
  esp32/mpconfigport.h: Enable maximum speed software SPI.
  esp32: Provide improved version of mp_hal_delay_us_fast.
  esp32/mpconfigport.h: Enable MICROPY_PY_BUILTINS_POW3 option.
  esp32: Update to latest ESP IDF.
  esp32: Convert to use new oofatfs library and generic VFS sub-system.
  esp32: Enable help('modules') to list builtin modules.
  esp32: Convert to use new builtin help function.

Aaron Kelly <AaronKelly@email.com>
  esp32/README: Add comment about ESP-IDF version

Damien George <damien.p.george@gmail.com>
  esp32: Consistently use size_t instead of mp_uint_t.
  esp32: Change "Micro Python" to "MicroPython" in license comments.
  esp32/Makefile: Use -C argument to git instead of cd'ing.
  esp32/help: Add section to help about using the network module.
  esp32/README: Add section about configuring and using an ESP32 board.
  esp32/README: Remove paragraph about buggy toolchain, it's now fixed.
  esp32/modnetwork: Change network init logging from info to debug.
  esp32/modnetwork: Don't start AP automatically when init'ing wifi.
  esp32/modsocket: Implement socket.setsockopt, to support SO_REUSEADDR.
  esp32: Update to latest ESP IDF.
  esp32/sdkconfig.h: Remove unused CONFIG_ESPTOOLPY_xxx config settings.
  esp32/modsocket: Add support for DGRAM and RAW, and sendto/recvfrom.
  esp32/modsocket: Fix return value of "port" in socket.accept.
  esp32/modsocket: Make socket.recv take exactly 2 args.
  esp32: Enable ussl module, using mbedtls component from ESP IDF.
  esp32/modsocket: Rename "socket" module to "usocket".
  esp32/sdkconfig: Increase max number of open sockets from 4 to 8.
  esp32/modsocket: Add error checking for creating and closing sockets.
  esp32/modsocket: Use _r (re-entrant) versions of LWIP socket API funcs.
  esp32/modsocket: Raise an exception if socket.connect did not succeed.
  esp32/modsocket: Make socket.accept return a tuple: (client, addr).
  esp32/modsocket: Use m_new_obj_with_finaliser instead of calloc.
  esp32/Makefile: Add check for IDF version, and warn if not supported.
  esp32/esp32.custom_common.ld: Update to follow changes in IDF.
  esp32: Update to latest ESP IDF.

nubcore <x@nubcore.com>
  esp32: add #define CONFIG_ESP32_WIFI_RX_BUFFER_NUM 25

Nick Moore <nick@zoic.org>
  esp32/modsocket.c: add in sendall and makefile methods #10
  esp32/modsocket.c: fixups for #10
  esp32/modsocket.c: fix copyright, socket_recv gets param and exception
  esp32/modnetwork.c: fix copyright, network.active param to bool

Damien George <damien.p.george@gmail.com>
  esp32/modnetwork: Implement wlan.isconnected() method.
  esp32/modnetwork: Add initial implementation of wlan.config().
  esp32/modnetwork: Simplify event_handler messages.

Nick Moore <nick@zoic.org>
  esp32/modsocket.c: support for ioctl, settimeout, setblocking, getaddrinfo

Damien George <damien.p.george@gmail.com>
  esp32/README: Add comment about FLASH_MODE being dio.
  esp32: Update to latest ESP IDF.
  esp32/modnetwork: Remove unnecessary indirection variable for scan list.
  esp32/modnetwork: Check that STA is active before trying to scan.
  esp32/mphalport: Replace portTICK_RATE_MS with portTICK_PERIOD_MS.
  esp32/README: Add comment about using $(HOME) in makefile.
  esp32/modnetwork: Use memset instead of bzero, the latter is deprecated.
  esp32/modnetwork: Improve error handling when STA is connecting to AP.
  esp32/Makefile: Use tab instead of spaces, and use shorter variable.

Nick Moore <nick@zoic.org>
  esp32/modsocket.c: AF_*, SOCK_* and IPPROTO_* constants
  esp32/modsocket.c: socket.settimeout implementation

Damien George <damien.p.george@gmail.com>
  esp32/Makefile: Update to latest ESP IDF.

Nick Moore <nick@zoic.org>
  esp32/modsocket.c: use mp streams for sockets
  esp32: network.WLAN.ifconfig based on esp8266 version
  esp32: Fix up exception handling
  esp32: sketchy modsocket ... revisit this once modnetwork is sorted
  esp32: First cut at modnetwork, manually rebased from prev. version

Damien George <damien.p.george@gmail.com>
  esp32/help: Update help text.
  esp32: Add info about Microbric Pty Ltd being the sponsor of this port.
  esp32: Add README.md file.
  esp32/mpconfigport.h: Add weak links to many of the builtin modules.
  esp32: Enable soft implementation of machine.SPI class.
  esp32/Makefile: Simplify APP_LD_ARGS by using OBJ variable.
  esp32/Makefile: Reorganise Makefile and add some comments.
  esp32/Makefile: Clean up CFLAGS for ESP IDF components.
  esp32/Makefile: Tidy up names of ESP IDF components, to match dir name.
  esp32/Makefile: Define and use ESPCOMP variable.
  esp32: Update to latest ESP IDF.
  esp32/main: Enable filesystem support.
  esp32: Use custom ld script to ensure correct code get placed in iram.
  esp32: Update to latest ESP IDF.
  esp32/main: Pin the uPy task to core 0.
  esp32: Update to use latest ESP IDF.
  esp32: Disable boot-up scripts, spi_flash_erase_sector no longer works.
  esp32: Add scripts to init and mount filesystem.
  esp32: Enable frozen bytecode, with scripts stored in "modules/" dir.
  esp32/modesp: Increase flash_user_start position to 1Mbyte.
  esp32/Makefile: Add "erase" target for convenient erasure.
  esp32/sdkconfig: Reorder config settings to put common things together.
  esp32/sdkconfig: Change to use single core only.
  esp32: Add esp module.
  esp32/uart.c: Make sure uart ISR handler is all in iram.
  esp32/main.c: Use ESP_TASK_PRIO_MIN + 1 for mp_task's priority.
  esp32/Makefile: Use only bare-minimum flags when compiling .S files.
  esp32/Makefile: Rename "firmware" to "application".
  esp32: Update ESP IDF version.
  esp32/Makefile: Add declarations to build bootloader and partitions.
  esp32/Makefile: When deploying, write the application last.
  esp32/Makefile: Use $(INC) variable instead of listing include dirs.
  esp32/Makefile: Use locally built versions of freertos and newlib libs.
  esp32: Add low-level uart handler with ISR and ringbuf for stdin.
  esp32: Add machine.idle() function.
  esp32: Add machine.I2C class.
  esp32: Enable machine.time_pulse_us.
  esp32: Add initial implementation of machine.Pin class.
  esp32: Prepare main.c for using xTaskCreateStatic.
  esp32: Clean up mphalport.h.
  esp32: Add initial uos module.
  esp32: Clean up mpconfigport.h, enable more features.
  esp32: Use new reset function.
  esp32: Update to latest ESP IDF.
  esp32: Add idf-version target to Makefile, to track IDF commit.
  esp32: Initial port to ESP32.
2017-12-13 14:48:53 +11:00