Commit Graph

647 Commits

Author SHA1 Message Date
Damien George 46091b8a95 stm32/timer: Add tick_hz arg to Timer constructor and init method.
The period of the timer can now be specified using the "period" and
"tick_hz" args.  The period in seconds will be: period/tick_hz.  tick_hz
defaults to 1000, so if period is specified on its own then it will be in
units of milliseconds.
2018-07-17 13:36:36 +10:00
Damien George 821b59d439 stm32/timer: Use enum for indexing keyword arg in pyb_timer_init_helper. 2018-07-17 13:22:42 +10:00
Nicko van Someren c3c914f4dd esp8266,esp32: Implement high-res timers using new tick_hz argument.
machine.Timer now takes a new argument in its constructor (or init method):
tick_hz which specified the units for the period argument.  The period of
the timer in seconds is: period/tick_hz.

For backwards compatibility tick_hz defaults to 1000.  If the user wants to
specify the period (numerator) in microseconds then tick_hz can be set to
1000000.  The user can also specify a period of an arbitrary number of
cycles of an arbitrary frequency using these two arguments.

An additional freq argument has been added to allow frequencies to be
specified directly in Hertz.  This supports floating point values when
available.
2018-07-17 13:17:23 +10:00
Damien George a3ba5f127e esp32/modesp32: Use MP_ROM_QSTR and MP_ROM_PTR in const locals dict. 2018-07-16 00:02:35 +10:00
Jérôme Poulin 4f5b435d9b esp32/modesp32: Add raw temperature reading to esp32 module.
Using direct register control as specified by ESP-IDF in
components/esp32/test/test_tsens.c.  Temperature doesn't represent any
particular unit, isn't calibrated and will vary from device to device.
2018-07-16 00:02:26 +10:00
Peter D. Gray 2a3979bcb3 stm32/fatfs_port: Fix bug when MICROPY_HW_ENABLE_RTC not enabled.
Prior to this patch, get_fattime() was calling a HAL RTC function with the
HW instance pointer as null because rtc_init_start() was never called.

Also marked it as a weak function, to allow a board to override it.
2018-07-14 17:17:46 +10:00
Mitchell Currie 385fa51806 esp32: Implement WLAN.status() return codes.
Resolves #3913: missing esp32 status() implementation.
2018-07-14 16:26:43 +10:00
Damien George 3ab2f3fb2b unix/modos: Convert dir-type to stat-type for file type in ilistdir.
Fixes issue #3931.
2018-07-11 16:06:16 +10:00
Damien George 9c8141f07e esp32/modnetwork: Add support for bssid parameter in WLAN.connect(). 2018-07-09 14:01:52 +10:00
Damien George e1ae9939ac stm32: Support compiling with object representation D.
With this and previous patches the stm32 port can now be compiled using
object representation D (nan boxing).  Note that native code and frozen mpy
files with float constants are currently not supported with this object
representation.
2018-07-08 23:25:11 +10:00
Damien George 3503f9626a stm32: Access dict map directly instead of using helper function. 2018-07-08 22:11:28 +10:00
Damien George fb8fc597cf cc3200/mods: Access dict map directly instead of using helper func. 2018-07-08 22:08:24 +10:00
stijn 106e594580 windows: Make printing of debugging info work out of the box.
Printing debugging info by defining MICROPY_DEBUG_VERBOSE expects
a definition of the DEBUG_printf function which is readily available
in printf.c so include that file in the build. Before this patch
one would have to manually provide such definition which is tedious.

For the msvc port disable MICROPY_USE_INTERNAL_PRINTF though: the
linker provides no (easy) way to replace printf with the custom
version as defined in printf.c.
2018-07-05 19:44:18 +10:00
Nicko van Someren 14ab81e87a esp32: Reduce latency for handling of scheduled Python callbacks.
Prior to this patch there was a large latency for executing scheduled
callbacks when when Python code is sleeping: at the heart of the
implementation of sleep_ms() is a call to vTaskDelay(1), which always
sleeps for one 100Hz tick, before performing another call to
MICROPY_EVENT_POLL_HOOK.

This patch fixes this issue by using FreeRTOS Task Notifications to signal
the main thread that a new callback is pending.
2018-07-04 10:49:37 +10:00
Damien George bccf9d3dcf esp8266: Let machine.WDT trigger the software WDT if obj is not fed.
This patch allows scripts to have more control over the software WDT.  If
an instance of machine.WDT is created then the underlying OS is prevented
from feeding the software WDT, and it is up to the user script to feed it
instead via WDT.feed().  The timeout for this WDT is currently fixed and
will be between 1.6 and 3.2 seconds.
2018-07-03 15:31:10 +10:00
Damien George b6e5f82ba5 esp8266/modesp: Run ets_loop_iter before/after doing flash erase/write.
A flash erase/write takes a while and during that time tasks may be
scheduled via an IRQ.  To prevent overflow of the task queue (and loss of
tasks) call ets_loop_iter() before and after slow flash operations.

Note: if a task is posted to a full queue while a flash operation is in
progress then this leads to a fault when trying to print out the error
message that the queue is full.  This patch doesn't try to fix this
particular issue, it just prevents it from happening in the first place.
2018-07-03 14:46:29 +10:00
Damien George 349d8e1324 esp32: Allow to build with uPy floats disabled. 2018-07-03 12:10:03 +10:00
Damien George 8f86fbfd6c ports: Enable ure.sub() on stm32, esp8266 (not 512k) and esp32. 2018-07-02 15:13:18 +10:00
Damien George 79d5e3abb3 unix/mpconfigport_coverage: Enable ure groups, span, start, end and sub. 2018-07-02 14:55:05 +10:00
Damien George d800ed1877 esp8266/esp8266_common.ld: Put mp_keyboard_interrupt in iRAM.
This function may be called from a UART IRQ, which may interrupt the system
when it is erasing/reading/writing flash.  In such a case all code
executing from the IRQ must be in iRAM (because the SPI flash is busy), so
put mp_keyboard_interrupt in iRAM so ctrl-C can be caught during flash
access.

This patch also takes get_fattime out of iRAM and puts it in iROM to make
space for mp_keyboard_interrupt.  There's no real need to have get_fattime
in iRAM because it calls other functions in iROM.

Fixes issue #3897.
2018-06-28 12:55:54 +10:00
Damien George bc6c56d75d esp8266/mpconfigport.h: Enable ucryptolib module for standard build.
It remains disabled for the 512k build.
2018-06-27 16:45:22 +10:00
Damien George 82bc4838d2 esp32/mpconfigport.h: Enable ucryptolib module. 2018-06-27 16:44:59 +10:00
Damien George 05e0103e9e zephyr: Rename CONFIG_CONSOLE_PULL to CONFIG_CONSOLE_SUBSYS.
Following a similar change in the Zephyr Project.
2018-06-27 15:33:59 +10:00
Paul Sokolovsky 735358bcf4 zephyr/prj_qemu_x86.conf: Remove outdated CONFIG_RAM_SIZE.
Target RAM size is no longer set using Kconfig options, but instead using
DTS (device tree config). Fortunately, the default is now set to a high
value, so we don't need to use DTS fixup.
2018-06-27 14:59:17 +10:00
Paul Sokolovsky 543352ac21 zephyr/prj_base.conf: Remove outdated CONFIG_NET_NBUF_RX_COUNT option.
CONFIG_NET_NBUF_RX_COUNT no longer exists in Zephyr, for a while. That
means we build with the default RX buf count for a while too, and it works,
so just remove it (instead of switching to what it was renamed to,
CONFIG_NET_PKT_RX_COUNT).
2018-06-27 14:58:54 +10:00
Paul Sokolovsky 771911028c unix/mpconfigport.h: Enable MICROPY_PY_UCRYPTOLIB. 2018-06-27 14:56:59 +10:00
Paul Sokolovsky 567bc2d6ce extmod/moducryptolib: Add ucryptolib module with crypto functions.
The API follows guidelines of https://www.python.org/dev/peps/pep-0272/,
but is optimized for code size, with the idea that full PEP 0272
compatibility can be added with a simple Python wrapper mode.

The naming of the module follows (u)hashlib pattern.

At the bare minimum, this module is expected to provide:

* AES128, ECB (i.e. "null") mode, encrypt only

Implementation in this commit is based on axTLS routines, and implements
following:

* AES 128 and 256
* ECB and CBC modes
* encrypt and decrypt
2018-06-27 14:54:40 +10:00
Damien George 9b158d60e1 stm32/mboot: Always use a flash latency of 1WS to match 48MHz HCLK. 2018-06-26 00:06:04 +10:00
Damien George 967123d42e stm32/mboot: Only compile in code for the USB periph that is being used.
Prior to this patch, if both USB FS and HS were enabled via the
configuration file then code was included to handle both of their IRQs.
But mboot only supports listening on a single USB peripheral, so this patch
excludes the code for the USB that is not used.
2018-06-26 00:02:36 +10:00
Damien George 37c4fd3b50 stm32/mboot: Fix bug with invalid memory access of USB state.
Only one of pcd_fs_handle/pcd_hs_handle is ever initialised, so if both of
these USB peripherals are enabled then one of these if-statements will
access invalid memory pointed to by an uninitialised Instance.  This patch
fixes this bug by explicitly referencing the peripheral struct.
2018-06-25 23:39:46 +10:00
Damien George 6fc84a7454 stm32/modnetwork: Fix query of DNS IP address in ifconfig().
Thanks to @boochow for the fix.
2018-06-23 23:41:59 +10:00
Damien George a2ac7e4fc9 stm32/boards: Add .ld and af.csv files for STM32F722.
These files can also be used for F723, F732 and F733 MCUs.
2018-06-22 15:39:10 +10:00
Damien George ec7982ec6d stm32/mboot: Add support for erase/read/write of external SPI flash.
This patch adds support to mboot for programming external SPI flash.  It
allows SPI flash to be programmed via a USB DFU utility in the same way
that internal MCU flash is programmed.
2018-06-22 15:30:34 +10:00
Damien George 7f41f73f0f stm32/qspi: Don't require data reads and writes to be a multiple of 4.
Prior to this patch the QSPI driver assumed that the length of all data
reads and writes was a multiple of 4.  This patch allows any length.  Reads
are optimised for speed by using 32-bit transfers when possible, but writes
always use a byte transfer because they only use a single data IO line and
are relatively slow.
2018-06-22 15:07:01 +10:00
Damien George 561ae9a91b stm32/boards/NUCLEO_F091RC: Fix TICK_INT_PRIORITY so it is highest prio.
Fixes issue #3880.
2018-06-20 12:24:18 +10:00
Damien George 5962c210c5 stm32/mboot: Define constants for reset mode cycling and timeout.
And fix timeout value so that it does actually finish with reset_mode=1.
2018-06-19 23:23:17 +10:00
Damien George e49cd106b4 stm32/spi: Fix SPI driver so it can send/recv more than 65535 bytes.
The DMA peripheral is limited to transferring 65535 elements at a time so
in order to send more than that the SPI driver must split the transfers up.

The user must be aware of this limit if they are relying on precise timing
of the entire SPI transfer, because there might be a small delay between
the split transfers.

Fixes issue #3851, and thanks to @kwagyeman for the original fix.
2018-06-18 17:41:14 +10:00
Damien George 338af99a7f stm32/can: Use MP_OBJ_ARRAY_TYPECODE_FLAG_RW where appropriate. 2018-06-18 13:42:05 +10:00
rolandvs ca2b1d6b36 stm32/boards/NUCLEO_F091RC: Add Arduino-named pins and rename CPU pins.
To match pin labels on other NUCLEO 64 boards.
2018-06-18 13:06:27 +10:00
rolandvs 0d3de68669 stm32/boards/stm32f091_af.csv: Split labels that are multiple funcs. 2018-06-18 13:05:24 +10:00
Damien George a5f5552a0a tests/unix/extra_coverage: Don't test stream objs with NULL write fun.
This behaviour of a NULL write C method on a stream that uses the write
adaptor objects is no longer supported.  It was only ever used by the
coverage build for testing the fail path of mp_get_stream_raise().
2018-06-18 12:35:56 +10:00
Damien George ceff433fcc stm32/mboot: Adjust user-reset-mode timeout so it ends with mode=1.
If the user button is held down indefinitely (eg unintenionally, or because
the GPIO signal of the user button is connected to some external device)
then it makes sense to end the reset mode cycle with the default mode of
1, which executes code as normal.
2018-06-18 12:23:27 +10:00
Damien George 34b2f6b6fc esp32/modules: Include umqtt library in frozen modules. 2018-06-15 16:39:49 +10:00
Damien George d61d119c94 esp32: Update to latest ESP IDF. 2018-06-15 16:23:53 +10:00
Damien George 7be4a23c0c stm32/i2cslave: Fix ordering of event callbacks in slave IRQ handler.
It's possible (at least on F4 MCU's) to have RXNE and STOPF set at the same
time during a call to the slave IRQ handler.  In such cases RXNE should be
handled before STOPF so that all bytes are processed before
i2c_slave_process_rx_end() is called.
2018-06-15 14:15:31 +10:00
Damien George bc5e8a2cb6 stm32/i2c: Fix num_acks calculation in i2c_write for F0 and F7 MCU's.
Due to buffering of outgoing bytes on the I2C bus, detection of a NACK
using the ISR_NACKF flag needs to account for the case where ISR_NACKF
corresponds to the previous-to-previous byte.
2018-06-15 14:10:53 +10:00
Damien George 37a7257aff stm32/timer: Support TIM1 on F0 MCUs. 2018-06-15 10:50:08 +10:00
Damien George cc5a94044a drivers/memory/spiflash: Rename functions to indicate they use cache.
This patch renames the existing SPI flash API functions to reflect the fact
that the go through the cache:

    mp_spiflash_flush -> mp_spiflash_cache_flush
    mp_spiflash_read  -> mp_spiflash_cached_read
    mp_spiflash_write -> mp_spiflash_cached_write
2018-06-14 16:52:56 +10:00
Damien George 335d26b27d stm32/boards/STM32L476DISC: Update SPI flash config for cache change. 2018-06-14 16:52:56 +10:00
Damien George cf1509c911 esp32/fatfs_port: Implement get_fattime so FAT files have a timestamp.
Fixes issue #3859.
2018-06-13 14:13:34 +10:00
Damien George 5042d98514 stm32/Makefile: Rebuild all qstrs when any board configuration changes. 2018-06-12 13:53:43 +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 565f590586 ports: Enable IOBase on unix, stm32, esp8266 and esp32.
It's a core feature, in particular required for user-streams with uasyncio.
2018-06-12 12:29:26 +10:00
Damien George b2fa1b50ed ports: Call gc_sweep_all() when doing a soft reset.
This calls finalisers of things like files and sockets to cleanly close
them.
2018-06-12 11:56:25 +10:00
Damien George 24c416cc66 stm32/mboot: Increase USB rx_buf and DFU buf sizes to full 2048 bytes.
The DFU USB config descriptor returns 0x0800=2048 for the supported
transfer size, and this applies to both TX (IN) and RX (OUT).  So increase
the rx_buf to support this size without having a buffer overflow on
received data.

With this patch mboot in USB DFU mode now works with dfu-util.
2018-06-08 15:29:52 +10:00
Glenn Moloney 039f196c56 esp32/modnetwork: Fix isconnected() when using static IP config.
Currently <WLAN>.isconnected() always returns True if a static IP is set,
regardless of the state of the connection.

This patch introduces a new flag 'wifi_sta_connected' which is set in
event_handler() when GOT_IP event is received and reset when DISCONNECTED
event is received (unless re-connect is successful).  isconnected() now
simply returns the status of this flag (for STA_IF).

The pre-existing flag misleadingly named 'wifi_sta_connected" is also
renamed to 'wifi_sta_connect_requested'.

Fixes issue #3837
2018-06-08 13:13:21 +10:00
Damien George 190c7dba89 stm32/mpconfigport.h: Enable DELATTR_SETATTR and BUILTINS_NOTIMPLEMENTED
MICROPY_PY_DELATTR_SETATTR can now be enabled without a performance hit for
classes that don't use this feature.

MICROPY_PY_BUILTINS_NOTIMPLEMENTED is a minor addition that improves
compatibility with CPython.
2018-06-08 12:55:18 +10:00
Damien George 93150a0d40 ports: Enable descriptors on stm32, esp8266, esp32 ports.
They are now efficient (in runtime performance) and provide a useful
feature that's hard to obtain without them enabled.

See issue #3644 and PR #3826 for background.
2018-06-08 12:23:08 +10:00
Damien George fadd6bbe43 unix/moduos_vfs: Add missing uos functions from traditional uos module.
Now that the coverage build has fully switched to the VFS sub-system these
functions were no longer available, so add them to the uos_vfs module.

Also, vfs_open is no longer needed, it's available as the built-in open.
2018-06-06 14:28:23 +10:00
Damien George 1d40f12e44 unix: Support MICROPY_VFS_POSIX and enable it in coverage build.
The unix coverage build is now switched fully to the VFS implementation, ie
the uos module is the uos_vfs module.  For example, one can now sandbox uPy
to their home directory via:

    $ ./micropython_coverage

    >>> import uos
    >>> uos.umount('/') # unmount existing root VFS
    >>> vfs = uos.VfsPosix('/home/user') # create new POSIX VFS
    >>> uos.mount(vfs, '/') # mount new POSIX VFS at root

Some filesystem/OS features may no longer work with the coverage build due
to this change, and these need to be gradually fixed.

The standard unix port remains unchanged, it still uses the traditional uos
module which directly accesses the underlying host filesystem.
2018-06-06 14:28:23 +10:00
Damien George f35aae366c extmod/vfs_fat: Rename FileIO/TextIO types to mp_type_vfs_fat_XXX.
So they don't clash with other VFS implementations.
2018-06-06 14:28:23 +10:00
Damien George aace60a75e esp8266/modules/ntptime.py: Remove print of newly-set time.
It should be up to the user if they want to print the new time out or not.

Fixes issue #3766.
2018-06-05 14:30:35 +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 df13ecde06 cc3200/mods: Include stream.h to get definition of mp_stream_p_t. 2018-06-04 16:58:45 +10:00
Damien George 309fe39dbb stm32/modnetwork: Fix arg indexing in generic ifconfig method. 2018-06-03 21:50:49 +10:00
Damien George 7d86ac6c01 stm32: Add network driver for Wiznet5k using MACRAW mode and lwIP.
The Wiznet5k series of chips support a MACRAW mode which allows the host to
send and receive Ethernet frames directly.  This can be hooked into the
lwIP stack to provide a full "socket" implementation using this Wiznet
Ethernet device.  This patch adds support for this feature.

To enable the feature one must add the following to mpconfigboard.mk, or
mpconfigport.mk:

    MICROPY_PY_WIZNET5K = 5500

and the following to mpconfigboard.h, or mpconfigport.h:

    #define MICROPY_PY_LWIP (1)

After wiring up the module (X5=CS, X4=RST), usage on a pyboard is:

    import time, network
    nic = network.WIZNET5K(pyb.SPI(1), pyb.Pin.board.X5, pyb.Pin.board.X4)
    nic.active(1)
    while not nic.isconnected():
        time.sleep_ms(50) # needed to poll the NIC
    print(nic.ifconfig())

Then use the socket module as usual.

Compared to using the built-in TCP/IP stack on the Wiznet module, some
performance is lost in MACRAW mode: with a lot of memory allocated to lwIP
buffers, lwIP gives Around 750,000 bytes/sec max TCP download, compared
with 1M/sec when using the TCP/IP stack on the Wiznet module.
2018-06-01 14:21:38 +10:00
Damien George d9f1ecece2 stm32/modnetwork: Provide generic implementation of ifconfig method.
All it needs is a lwIP netif to function.
2018-06-01 13:33:14 +10:00
Damien George 7437215ad7 stm32/modnetwork: Change base entry of NIC object from type to base.
mod_network_nic_type_t doesn't need to be an actual uPy type, it just needs
to be an object.
2018-06-01 13:31:28 +10:00
Damien George 6d87aa54d6 stm32/modnetwork: Don't take netif's down when network is deinited.
It should be up to the NIC itself to decide if the network interface is
removed upon soft reset.  Some NICs can keep the interface up over a soft
reset, which improves usability of the network.
2018-06-01 13:27:06 +10:00
Damien George a1acbad27a stm32/flash: Increase H7 flash size to full 2MiB. 2018-05-30 09:54:51 +10:00
rolandvs 958fa74521 stm32/boards: Ensure USB OTG power is off for NUCLEO_F767ZI.
And update the GPIO init for NUCLEO_H743ZI to consistently use the mphal
functions.
2018-05-30 09:51:19 +10:00
rolandvs 50bc34d4a4 stm32/boards: Split combined alt-func labels and fix some other errors.
Pins with multiple alt-funcs for the same peripheral (eg USART_CTS_NSS)
need to be split into individual alt-funcs for make-pins.py to work
correctly.

This patch changes the following:
- Split `..._CTS_NSS` into `..._CTS/..._NSS`
- Split `..._RTS_DE` into `..._RTS/..._DE`
- Split `JTDO_SWO` into `JTDO/TRACESWO` for consistency
- Fixed `TRACECK` to `TRACECLK` for consistency
2018-05-29 21:37:49 +10:00
Damien George 98d1609358 stm32/README: Update to include STM32F0 in list of supported MCUs. 2018-05-28 22:04:08 +10:00
Damien George e681372017 stm32/boards: Add NUCLEO_F091RC board configuration files. 2018-05-28 21:49:49 +10:00
Damien George 1163400039 stm32/boards: Add alt-func CSV list and linker script for STM32F091. 2018-05-28 21:49:49 +10:00
Damien George ea7e747979 stm32: Add support for STM32F0 MCUs. 2018-05-28 21:49:49 +10:00
Damien George 4a7d157a5b stm32/boards: Add startup_stm32f0.s for STM32F0 MCUs.
Sourced from STM32Cube_FW_F0_V1.9.0.
2018-05-28 21:49:49 +10:00
Damien George 6d83468a30 stm32: Allow a board to disable MICROPY_VFS_FAT. 2018-05-28 21:46:20 +10:00
Damien George 5c0685912f stm32/timer: Make timer_get_source_freq more efficient by using regs.
Use direct register access to get the APB clock divider.  This reduces code
size and makes the code more efficient.
2018-05-28 21:46:20 +10:00
Damien George 070937fe93 stm32: Add support for Cortex-M0 CPUs. 2018-05-28 21:46:20 +10:00
Damien George f497723802 stm32: Allow to have no storage support if there are no block devices.
If no block devices are defined by a board then storage support will be
disabled.  This means there is no filesystem provided by either the
internal flash or external SPI flash.  But the VFS system can still be
enabled and filesystems provided on external devices like an SD card.
2018-05-28 21:45:46 +10:00
Damien George aa4a7a8732 stm32/usb: Guard USB device code with #if for whether USB is enabled.
With this change, all the USB source code can now be passed through the
compiler even if the MCU does not have a USB peripheral.
2018-05-28 21:45:46 +10:00
Nick Moore ef4c8e6e97 esp32: Silence ESP-IDF log messages when in raw REPL mode.
This prevents clients such as ampy, mpy-utils, etc getting confused by
extraneous data.
2018-05-28 20:15:08 +10:00
Damien George 15ddc20436 stm32: Add new component, the mboot bootloader.
Mboot is a custom bootloader for STM32 MCUs.  It can provide a USB DFU
interface on either the FS or HS peripherals, as well as a custom I2C
bootloader interface.
2018-05-24 23:21:19 +10:00
Damien George f47eeab0ad stm32: Add low-level hardware I2C slave driver. 2018-05-24 23:11:13 +10:00
Damien George 4200018a05 stm32: Remove unneeded HTML release notes from usbdev and usbhost dirs.
These files provide no additional information, all the version and license
information is captured in the relevant files in these subdirectories.

Thanks to @JoeSc for the original patch.
2018-05-24 11:28:54 +10:00
Damien George df9b7e8f24 esp32/esp32.custom_common.ld: Put soc code in iram0.
This is what the IDF does, it must be done.
2018-05-23 12:57:50 +10:00
Damien George 20b4b85f72 ports: Enable MICROPY_PY_BUILTINS_ROUND_INT on selected ports. 2018-05-22 14:18:16 +10:00
Damien George e773a2cdba stm32/main: Use consistent indenting of macro #if's. 2018-05-22 13:17:03 +10:00
Damien George f68e722005 stm32/rng: Use Yasmarang for rng_get() if MCU doesn't have HW RNG. 2018-05-22 10:36:03 +10:00
Damien George cda964198a stm32: Integrate lwIP as implementation of usocket module.
This patch allows to use lwIP as the implementation of the usocket module,
instead of the existing socket-multiplexer that delegates the entire TCP/IP
layer to the NIC itself.

This is disabled by default, and enabled by defining MICROPY_PY_LWIP to 1.

When enabled, the lwIP TCP/IP stack will be included in the build with
default settings for memory usage and performance (see
lwip_inc/lwipopts.h).  It is then up to a particular NIC to register itself
with lwIP using the standard lwIP netif API.
2018-05-21 17:36:06 +10:00
Damien George 6c955932f3 stm32/rtc: Don't try to set SubSeconds value on RTC.
The hardware doesn't allow it, instead the value is reset to 255 upon
setting the other calendar/time values.
2018-05-21 14:08:37 +10:00
Daniel Shaulov cac2eddc16 minimal/main: Allow to compile without GC enabled. 2018-05-21 13:13:21 +10:00
Damien George afd0701bf7 esp8266: Change UART(0) to attach to REPL via uos.dupterm interface.
This patch makes it so that UART(0) can by dynamically attached to and
detached from the REPL by using the uos.dupterm function.  Since WebREPL
uses dupterm slot 0 the UART uses dupterm slot 1 (a slot which is newly
introduced by this patch).  UART(0) must now be attached manually in
boot.py (or otherwise) and inisetup.py is changed to provide code to do
this.  For example, to attach use:

    import uos, machine
    uart = machine.UART(0, 115200)
    uos.dupterm(uart, 1)

and to detach use:

    uos.dupterm(None, 1)

When attached, all incoming chars on UART(0) go straight to stdin so
uart.read() will always return None.  Use sys.stdin.read() if it's needed
to read characters from the UART(0) while it's also used for the REPL (or
detach, read, then reattach).  When detached the UART(0) can be used for
other purposes.

If there are no objects in any of the dupterm slots when the REPL is
started (on hard or soft reset) then UART(0) is automatically attached.
Without this, the only way to recover a board without a REPL would be to
completely erase and reflash (which would install the default boot.py which
attaches the REPL).
2018-05-21 11:31:59 +10:00
Damien George 2923671a0c esp32/Makefile: Update to latest ESP IDF version. 2018-05-21 11:28:36 +10:00
Paul Sokolovsky 478410b409 zephyr/Makefile: Add kobj_types_h_target to Z_EXPORTS.
New generated Zephyr header file, without it build breaks.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky 5a023372df zephyr: Add prj_disco_l475_iot1.conf with sensor drivers. 2018-05-21 10:35:16 +10:00
Paul Sokolovsky 7afbc49863 zephyr/prj_base.conf: Enable DHCP and group static IPs together.
Add CONFIG_NET_DHCPV4, which, after
https://github.com/zephyrproject-rtos/zephyr/pull/5750 works as follows:
static addresses are configured after boot, and DHCP requests are sent
at the same time. If valid DHCP reply is received, it overrides static
addresses.

This setup works out of the box for both direct connection to a
workstation (DHCP server usually is not available) and for connection
to a router (DHCP is available and required).
2018-05-21 10:35:16 +10:00
Paul Sokolovsky 0e52ee957d zephyr/modzsensor: Zephyr sensor subsystem bindings. 2018-05-21 10:35:16 +10:00
Paul Sokolovsky 080b0be1c8 zephyr/mpconfigport.h: Enable uhashlib and ubinascii modules.
To be able to use data integrity checks in various tests.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky 9480c188e8 zephyr/main: After builtin testsuite, drop to REPL.
It makes sense to make even testsuite-enabled builds be suitable for
interactive use.
2018-05-21 10:35:16 +10:00
Paul Sokolovsky 1050045979 zephyr/README: Hint about existence of qemu_x86_nommu. 2018-05-21 10:35:16 +10:00
Tobias Badertscher 769e37b646 stm32/boards: Add config files for new board, STM32L496GDISC. 2018-05-18 22:39:49 +10:00
Tobias Badertscher 4005c63571 stm32/boards: Add board ld and af.csv files for STM32L496 MCU. 2018-05-18 22:39:44 +10:00
Tobias Badertscher 708cdb6276 stm32: Add support for STM32L496 MCU. 2018-05-18 22:37:30 +10:00
Damien George 58331e3c28 esp8266/modmachine: Allow I2C and SPI to be configured out of the build.
I2C costs about 3000 bytes of code, and SPI costs about 4400 bytes.
2018-05-17 23:37:12 +10:00
Damien George dd13065843 esp8266/modnetwork: Raise ValueError when getting invalid WLAN id.
Instead of crashing due to out-of-bounds array access.  Fixes #3348.
2018-05-17 22:12:24 +10:00
Damien George f8a5cd24d8 esp8266/modnetwork: Return empty str for hostname if STA is inactive.
Instead of crashing due to NULL pointer dereference.  Fixes issue #3341.
2018-05-17 22:11:22 +10:00
Damien George 94a79f340d esp8266/mpconfigport.h: Add some weak links to common Python modules.
To make it easier/simpler to write code that can run under both CPython and
on an ESP8266 board.
2018-05-17 13:27:18 +10:00
Ryan Shaw b9ff46f1ed stm32: Enable UART7/8 on F4 series that have these peripherals. 2018-05-16 11:55:07 +10:00
Damien George cdaace1fdf esp32/modnetwork: Fix STA/AP activate/deactivate for new IDF API.
WIFI_MODE_NULL is no longer supported by the ESP IDF, instead one must use
esp_wifi_start/esp_wifi_stop.
2018-05-15 11:50:37 +10:00
Damien George e6b66f1092 stm32/usb: Initialise cdc variable to prevent compiler warnings.
Some compilers cannot deduce that cdc will always be written before being
used.
2018-05-15 00:18:03 +10:00
Damien George 47ecbbbecb stm32/usb: Add ability to have 2x VCP interfaces on the one USB device.
This patch adds the configuration MICROPY_HW_USB_ENABLE_CDC2 which enables
a new USB device configuration at runtime: VCP+VCP+MSC.  It will give two
independent VCP interfaces available via pyb.USB_VCP(0) and pyb.USB_VCP(1).
The first one is the usual one and has the REPL on it.  The second one is
available for general use.

This configuration is disabled by default because if the mode is not used
then it takes up about 2200 bytes of RAM.  Also, F4 MCUs can't support this
mode on their USB FS peripheral (eg PYBv1.x) because they don't have enough
endpoints.  The USB HS peripheral of an F4 supports it, as well as both the
USB FS and USB HS peripherals of F7 MCUs.
2018-05-14 23:44:45 +10:00
Damien George 2e565cc0d4 stm32/usb: Change HID report funcs to take HID state, not usbdev state. 2018-05-14 17:04:43 +10:00
Damien George 91bca340ec stm32/usb: Change CDC tx/rx funcs to take CDC state, not usbdev state. 2018-05-14 16:55:04 +10:00
Damien George 68271a27e6 stm32/usb: Make CDC endpoint definitions private to core usbdev driver. 2018-05-14 16:53:45 +10:00
Damien George ed92d62326 stm32/usb: Combine HID lower-layer and interface state into one struct. 2018-05-14 16:34:31 +10:00
Damien George bf08a99ccd stm32/usb: Combine CDC lower-layer and interface state into one struct. 2018-05-14 16:15:58 +10:00
Damien George ed32284b70 stm32/usb: Use usbd_cdc_itf_t pointer directly in USB_VCP class. 2018-05-14 15:24:44 +10:00
Damien George fb25c81062 stm32/modpyb: Remove unused includes and clean up comments.
The documentation (including the examples) for elapsed_millis and
elapsed_micros can be found in docs/library/pyb.rst so doesn't need to be
written in full in the source code.
2018-05-14 14:01:50 +10:00
Damien George 88c26a48b4 stm32/pyb_i2c: Put pyb.I2C under MICROPY_PY_PYB_LEGACY setting.
When disabled, the pyb.I2C class saves around 8k of code space and 172
bytes of RAM.  The same functionality is now available in machine.I2C
(for F4 and F7 MCUs).

It is still enabled by default.
2018-05-14 13:53:46 +10:00
Damien George 92c5e2708d stm32/modpyb: Introduce MICROPY_PY_PYB_LEGACY config option for pyb mod.
This is enabled by default.  When it is disabled all legacy functions and
classes in the pyb module are excluded from the build.
2018-05-14 13:49:22 +10:00
Damien George a0f7b4c678 stm32/accel: Switch pyb.Accel to use new C-level I2C API. 2018-05-14 13:23:18 +10:00
Damien George ce824bb67e stm32/machine_i2c: Use new F4 hardware I2C driver for machine.I2C class.
And remove the old one based on ST code.
2018-05-14 13:22:12 +10:00
Damien George b21415ed4f stm32/i2c: Add new hardware I2C driver for F4 MCUs.
This driver uses low-level register access to control the I2C peripheral
(ie it doesn't rely on the ST HAL) and provides the same C-level API as the
existing F7 hardware driver.
2018-05-14 13:19:03 +10:00
Peter D. Gray ca36645410 stm32/usbd_hid_interface: Address possible race condition vs. interrupt.
The USB IRQ may fire once USBD_HID_ClearNAK() is called and then change the
last_read_len value.
2018-05-14 12:08:34 +10:00
Peter D. Gray 1f1623d3b7 stm32/usbdev: Be honest about data not being written to HID endpoint.
USB_HID.send() should now return 0 if it could not send the report to the
host.
2018-05-14 12:01:27 +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
Damien George aeaace0737 stm32/usbdev: Remove unused RxState variable, and unused struct. 2018-05-11 23:20:59 +10:00
Damien George abde0fa226 stm32/usbdev: Convert files to unix line endings.
Also remove trailing whitespace and convert tabs to spaces.
2018-05-11 23:03:52 +10:00
Damien George 56a273ebff stm32/usbd_conf: Changes files to unix line endings and apply styling.
This patch is only cosmetic and has no functional change.
2018-05-11 22:17:58 +10:00
Damien George 9f4eda542a stm32/usbd_conf.h: Remove unused macros and clean up header file. 2018-05-11 22:04:56 +10:00
Damien George b208aa189e stm32/README: Update to reflect current MCU support. 2018-05-11 10:36:46 +10:00
Damien George c1115d931f stm32/usb: Use correct type for USB HID object. 2018-05-09 16:00:19 +10:00
Damien George e1bc85416a stm32/usb: Fix broken pyb.have_cdc() so it works again. 2018-05-09 15:59:48 +10:00
Damien George e638defff4 stm32/i2c: Make sure stop condition is sent after receiving addr nack. 2018-05-09 15:53:09 +10:00
Damien George aea71dbde0 stm32/Makefile: Use -O2 to optimise compilation of lib/libc/string0.c. 2018-05-04 15:53:51 +10:00
Damien George cb3456ddfe stm32: Don't use %lu or %lx for formatting, use just %u or %x.
On this 32-bit arch there's no need to use the long version of the format
specifier.  It's only there to appease the compiler which checks the type
of the args passed to printf.  Removing the "l" saves a bit of code space.
2018-05-04 15:52:03 +10:00
Damien George b614dc73b0 stm32/dma: Fix duplicate typedef of struct, it's typedef'd in dma.h. 2018-05-04 15:35:43 +10:00
Damien George 12a3fccc7e esp32/modsocket: Check for pending events during blocking socket calls. 2018-05-03 00:09:25 +10:00
Damien George 4fa7d36cee esp32: Use mp_rom_map_elem_t and MP_ROM_xxx macros for const dicts. 2018-05-02 22:33:41 +10:00
Damien George 6681eb809a esp32/modsocket: Correctly handle reading from a peer-closed socket.
If a socket is cleanly shut down by the peer then reads on this socket
should continue to return zero bytes.  The lwIP socket API does not have
this behaviour (it only returns zero once, then blocks on subsequent calls)
so this patch adds explicit checks and logic for peer closed sockets.
2018-05-02 22:31:00 +10:00
Torwag fb7dabb971 esp32/README: Add --init to submodule update command.
Add --init to the submodule update example, thus, all submodules get
initialised including the nested (--recursive) ones.  Without it there
might not be a submodule init.
2018-05-02 17:24:17 +10:00
Damien George 6410e174c5 esp8266: Disable DEBUG_PRINTERS for 512k build.
Disabling this saves around 6000 bytes of code space and gets the 512k
build fitting in the available flash again (it increased lately due to an
increase in the size of the ESP8266 SDK).
2018-05-02 15:51:19 +10:00
Damien George 051686b0a8 stm32/main: Clean up and optimise initial start-up code of the MCU. 2018-05-02 15:20:24 +10:00
Damien George a03e6c1e05 stm32/irq: Define IRQ priorities directly as encoded hardware values.
For a given IRQn (eg UART) there's no need to carry around both a PRI and
SUBPRI value (eg IRQ_PRI_UART, IRQ_SUBPRI_UART).  Instead, the IRQ_PRI_UART
value has been changed in this patch to be the encoded hardware value,
using NVIC_EncodePriority.  This way the NVIC_SetPriority function can be
used directly, instead of going through HAL_NVIC_SetPriority which must do
extra processing to encode the PRI+SUBPRI.

For a priority grouping of 4 (4 bits for preempt priority, 0 bits for the
sub-priority), which is used in the stm32 port, the IRQ_PRI_xxx constants
remain unchanged in their value.

This patch also "fixes" the use of raise_irq_pri() which should be passed
the encoded value (but as mentioned above the unencoded value is the same
as the encoded value for priority grouping 4, so there was no bug from this
error).
2018-05-02 14:41:02 +10:00
Peter D. Gray 266446624f stm32/dma: Always deinit/reinit DMA channels on L4 MCUs.
The problem is the existing code which tries to optimise the
reinitialisation of the DMA breaks the abstraction of the HAL.  For the
STM32L4 the HAL's DMA setup code maintains two private vars (ChannelIndex,
DmaBaseAddress) and updates a hardware register (CCR).

In HAL_DMA_Init(), the CCR is updated to set the direction of the DMA.
This is a problem because, when using the SD Card interface, the same DMA
channel is used in both directions, so the direction bit in the CCR must
follow that.

A quick and effective fix for the L4 is to simply call HAL_DMA_DeInit() and
HAL_DMA_Init() every time.
2018-05-02 13:41:23 +10:00
Damien George 4c0f664b1a stm32/flash: Remove unused src parameter from flash_erase(). 2018-05-02 13:11:56 +10:00
Damien George edb600b6a2 stm32/mphalport: Optimise the way that GPIO clocks are enabled. 2018-05-02 13:08:58 +10:00
Damien George 00a659f3ee stm32/dac: Implement printing of a DAC object. 2018-05-02 12:17:45 +10:00
Damien George dcfd2de5c2 stm32/dac: Make deinit disable the output buffer on H7 and L4 MCUs. 2018-05-02 12:17:45 +10:00
Damien George d4f8414ebd stm32/adc: Use mp_hal_pin_config() instead of HAL_GPIO_Init().
This makes ADCAll work correctly on L4 MCUs.
2018-05-02 12:17:45 +10:00
Damien George 3022947343 stm32/mphalport: Support ADC mode on a pin for L4 MCUs. 2018-05-02 12:17:45 +10:00
Damien George 68f4cba3d2 stm32/boards: Update pins.csv to include USB pins where needed. 2018-05-01 17:38:51 +10:00
Damien George b0ad46cd11 stm32/dac: Use mp_hal_pin_config() instead of HAL_GPIO_Init(). 2018-05-01 17:33:08 +10:00
Damien George 04ead56614 stm32/usbd_conf: Use mp_hal_pin_config() instead of HAL_GPIO_Init.
To reduce dependency on the ST HAL for pin operations.
2018-05-01 17:32:19 +10:00
Damien George a28bd4ac94 stm32/mphalport: Add mp_hal_pin_config_speed() to select GPIO speed.
It should be used after mp_hal_pin_config() or mp_hal_pin_config_alt().
2018-05-01 17:31:23 +10:00
Damien George 777e042ab5 esp32/modnetwork: Allow to get ESSID of AP that STA is connected to.
Following the same addition to esp8266 port.
2018-05-01 16:37:08 +10:00
Lars Kellogg-Stedman d8fdb77ac9 esp8266/modnetwork: Allow to get ESSID of AP that STA is connected to.
This patch enables iface.config('essid') to work for both AP and STA
interfaces.
2018-05-01 16:37:02 +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
iabdalkader 28c9824c51 stm32/boards/NUCLEO_H743ZI: Enable ADC peripheral. 2018-05-01 15:39:03 +10:00
iabdalkader 8c12f1d916 stm32/adc: Add support for H7 MCU series.
ADC3 is used because the H7's internal ADC channels are connected to ADC3
and the uPy driver doesn't support more than one ADC.

Only 12-bit resolution is supported because 12 is hard-coded and 14/16 bits
are not recommended on some ADC3 pins (see errata).

Values from internal ADC channels are known to give wrong values at
present.
2018-05-01 15:36:11 +10:00
Damien George 23e9c3bca7 esp32/modules: Add support scripts for WebREPL.
WebREPL now works on the esp32 in the same way it does on esp8266.
2018-04-27 23:58:51 +10:00
Damien George c1d4352e65 esp32/mpconfigport: Enable webrepl module and socket events. 2018-04-27 23:57:57 +10:00
Damien George 999c8b9711 esp32/modsocket: Add support for registering socket event callbacks.
The esp8266 uses modlwip.c for its usocket implementation, which allows to
easily support callbacks on socket events (like when a socket becomes ready
for reading).  This is not as easy to do for the esp32 which uses the
ESP-IDF-provided lwIP POSIX socket API.  Socket events are needed to get
WebREPL working, and this patch provides a way for such events to work by
explicitly polling registered sockets for readability, and then calling the
associated callback if the socket is readable.
2018-04-27 23:57:26 +10:00
Damien George 98b05e3614 esp32: Add support for and enable uos.dupterm(). 2018-04-27 23:51:45 +10:00
Damien George 04dc4a5034 esp32/mphalport: Improve mp_hal_stdout_tx_XXX functions.
This makes way for enabling uos.dupterm().
2018-04-27 23:49:21 +10:00
Damien George c0dd9be606 stm32/boards/NUCLEO_H743ZI: Use priority 0 for SysTick IRQ.
This follows how all other boards are configured.
2018-04-27 15:16:45 +10:00
Damien George 527ba0426c stm32/system_stm32: Reconfigure SysTick IRQ priority for L4 MCUs.
After calling HAL_SYSTICK_Config the SysTick IRQ priority is set to 15, the
lowest priority.  This commit reconfigures the IRQ priority to the desired
TICK_INT_PRIORITY value.
2018-04-27 12:54:35 +10:00
Damien George 4ed5865280 esp32/mphalport: Improve mp_hal_delay_us so it handles pending events.
Thanks to @bboser for the initial idea and implementation.
2018-04-26 20:21:33 +10:00
Damien George e1fe3abd09 esp32/mphalport: Use esp_timer_get_time instead of gettimeofday.
It's more efficient and improves accuracy.
2018-04-26 20:19:31 +10:00
Damien George 9254f365d6 stm32/machine_i2c: Provide hardware I2C for machine.I2C on F7 MCUs. 2018-04-24 23:48:04 +10:00
Damien George 19778d0a3c stm32/i2c: Add low-level I2C driver for F7 MCUs. 2018-04-24 23:48:04 +10:00
Damien George 0c54d0c288 stm32: Rename legacy pyb.I2C helper functions to start with pyb_i2c_. 2018-04-24 17:32:16 +10:00
Damien George b73adcc3d9 stm32: Rename i2c.c to pyb_i2c.c.
i2c.c implements the legacy pyb.I2C class so rename the file to make this
explicit, and also to make room for an improved I2C driver.
2018-04-24 16:23:36 +10:00
Damien George 8b91260169 stm32/dac: Support MCUs that don't have TIM4/5 and use new HAL macro. 2018-04-24 12:07:59 +10:00
Damien George 8a949ba599 stm32: Introduce MICROPY_PY_STM config to include or not the stm module.
By default the stm module is included in the build, but a board can now
define MICROPY_PY_STM to 0 to not include this module.  This reduces the
firmware by about 7k.
2018-04-24 12:01:49 +10:00
Damien George a60efa8202 stm32/uart: Allow ctrl-C to work with UARTs put on REPL via os.dupterm. 2018-04-23 20:44:30 +10:00
Damien George 513e537215 stm32/uart: Allow ctrl-C to issue keyboard intr when REPL is over UART. 2018-04-23 17:06:40 +10:00
iabdalkader d870a4e835 stm32/boards/NUCLEO_H743ZI: Enable RNG for this board. 2018-04-23 16:43:16 +10:00
iabdalkader 70a6a15f8c stm32/rng: Set RNG clock source for STM32H7. 2018-04-23 16:43:05 +10:00
Shanee Vanstone b5ee3b2f21 esp32/README.md: Fix typo readme. 2018-04-20 16:23:55 +10:00
Peter D. Gray 9adfd14644 stm32/sdcard: Implement BP_IOCTL_SEC_COUNT to get size of SD card. 2018-04-20 16:09:03 +10:00
Damien George 3d5d76fb73 stm32/main: Allow a board to configure the label of the flash FS.
To change the default label a board should define:

    #define MICROPY_HW_FLASH_FS_LABEL "label"
2018-04-11 16:52:22 +10:00
Damien George cf9fc7346d stm32: Allow a board to configure the HSE in bypass mode.
To use HSE bypass mode the board should define:

    #define MICROPY_HW_CLK_USE_BYPASS (1)

If this is not defined, or is defined to 0, then HSE oscillator mode is
used.
2018-04-11 16:46:47 +10:00
Damien George 68b70fac5c stm32/stm32_it: Add IRQ handler for I2C4. 2018-04-11 16:37:45 +10:00
Damien George a7ebac2eae stm32/can: Allow CAN pins to be configured per board.
This patch allows a given board to configure which pins are used for the
CAN peripherals, in a similar way to all the other bus peripherals (I2C,
UART, SPI).  To enable CAN on a board the mpconfigboard.h file should
define (for example):

    #define MICROPY_HW_CAN1_TX (pin_B9)
    #define MICROPY_HW_CAN1_RX (pin_B8)
    #define MICROPY_HW_CAN2_TX (pin_B13)
    #define MICROPY_HW_CAN2_RX (pin_B12)

And the board config file should no longer define MICROPY_HW_ENABLE_CAN.
2018-04-11 16:35:24 +10:00
Damien George 0041396f05 stm32/pin: In pin AF object, remove union of periph ptr types.
The individual union members (like SPI, I2C) are never used, only the
generic "reg" entry is.  And the union names can clash with macro
definitions in the HAL so better to remove them.
2018-04-11 16:14:58 +10:00
Damien George f1073e747d stm32/adc: Factor common ADC init code into adcx_init_periph().
The only configuration that changes with this patch is that on L4 MCUs the
clock prescaler changed from ADC_CLOCK_ASYNC_DIV2 to ADC_CLOCK_ASYNC_DIV1
for the ADCAll object.  This should be ok.
2018-04-11 14:46:13 +10:00
Damien George 1d6c155d6a stm32/adc: Fix config of EOC selection and Ext-Trig for ADC periph.
A value of DISABLE for EOCSelection is invalid.  This would have been
interpreted instead as ADC_EOC_SEQ_CONV, but really it should be
ADC_EOC_SINGLE_CONV for the uses in this code.  So this has been fixed.

ExternalTrigConv should be ADC_SOFTWARE_START because all ADC
conversions are started by software.  This is now fixed.
2018-04-11 14:29:37 +10:00
Damien George 06807c1bde stm32/adc: Factor code to optimise adc_read_channel and adc_read.
Saves 200 bytes of code space.
2018-04-11 14:28:06 +10:00
Damien George b30e0d2f26 stm32/dac: Add buffering argument to constructor and init() method.
This can be used to select the output buffer behaviour of the DAC.  The
default values are chosen to retain backwards compatibility with existing
behaviour.

Thanks to @peterhinch for the initial idea to add this feature.
2018-04-11 14:22:21 +10:00
Damien George aebd9701a7 stm32/adc: Optimise read_timed_multi() by caching buffer pointers. 2018-04-11 14:09:09 +10:00
Peter Hinch 4f40fa5cf4 stm32/adc: Add read_timed_multi() static method, with docs and tests. 2018-04-11 13:36:17 +10:00
Damien George de9528d12c stm32/adc: Fix verification of ADC channel 16 for F411 MCUs. 2018-04-11 13:16:54 +10:00
Peter D. Gray 59dda71038 stm32/main: Guard usb_mode lines in default boot.py by relevant #if. 2018-04-10 23:52:51 +10:00
Damien George 4ff05ae4e9 esp32/machine_uart: Remove UART event queue object.
This event queue has UART events posted to it and they need to be drained
for it to operate without error.  The queue is not used by the uPy UART
class so it should be removed to prevent the IDF emitting errors.

Fixes #3704.
2018-04-10 15:24:10 +10:00
Damien George 22f1414abb stm32/i2c: Fully support peripheral I2C4. 2018-04-10 14:33:18 +10:00
Damien George 69bf23c9cf stm32/i2c: Update HAL macros to use new __HAL_RCC prefix. 2018-04-10 14:28:39 +10:00