This change enables `sys.stdin`, `sys.stdout` and `sys.stderr` objects.
They are useful for general IO, and also help with testing zephyr boards.
Signed-off-by: Damien George <damien@micropython.org>
If there is a filesystem available, this change makes sure there is a "lib"
in `sys.path`, eg so that "mip install" works correctly.
Signed-off-by: Damien George <damien@micropython.org>
This enables using the newer USB stack and its CDC ACM for the REPL.
To switch to it, board file must contain `CONFIG_USB_DEVICE_STACK_NEXT=y`
and `CONFIG_USBD_CDC_ACM_CLASS=y`. In the case of a board that is a
platform that supports the older device stack, `CONFIG_USB_DEVICE_STACK=n`
may be necessary.
Signed-off-by: Vdragon <mail@massdriver.space>
Enables the ability to use frozen modules in the zephyr port.
Enabled by adding `CONFIG_MICROPY_FROZEN_MODULES` to the board
configuration file. Manually set manifest path with
`CONFIG_MICROPY_FROZEN_MANIFEST`.
Signed-off-by: Vdragon <mail@massdriver.space>
Simple `machine.Timer` implementation in-line with the rest of the
MicroPython ports.
Note: Only virtual timers are supported (not linked to any particular
hardware peripheral).
Tested with the nRF5340 and the nRF52840.
Signed-off-by: danicampora <danicampora@gmail.com>
Refactors Zephyr device lookup operations into a common helper function
to reduce boilerplate code that was repeated in multiple modules.
Suggested-by: Damien George <damien@micropython.org>
Signed-off-by: Maureen Helm <maureen.helm@analog.com>
This commit implements the `_thread` module on the zephyr port.
Due to the fact that we are still using a rather old version of Zephyr,
`CONFIG_DYNAMIC_THREAD` is not available and therefore the stack for
threads cannot be allocated dynamically, only at compile time. So for the
time being and for the purpose of this commit, a maximum of 4 Zephyr
threads (besides the main thread) can be created. Once we manage to update
to the latest version of Zephyr this won't be a problem anymore.
Configuration for the nrf52840dk is added as part of this change, because
this board was used to test the threading support.
The Zephyr option `CONFIG_THREAD_CUSTOM_DATA` is used to enable threading
on a per board basis. The `thread.conf` file is added as a convenient way
to enable threading.
Signed-off-by: danicampora <danicampora@gmail.com>
Unlike most other Zephyr libraries, libkernel.a is not built as a
whole-archive.
This change also fixes a linker error observed on nucleo_wb55rg while
preparing an upgrade to Zephyr v3.5.0, caused by an undefined reference to
`z_impl_k_busy_wait`.
Signed-off-by: Maureen Helm <maureen.helm@analog.com>
This is a code factoring to have the dict for the machine module in one
location, and all the ports use that same dict. The machine.soft_reset()
function implementation is also factored because it's the same for all
ports that did already implement it. Eventually more functions/bindings
can be factored.
All ports remain functionally the same, except:
- cc3200 port: gains soft_reset, mem8, mem16, mem32, Signal; loses POWER_ON
(which was a legacy constant, replaced long ago by PWRON_RESET)
- nrf port: gains Signal
- qemu-arm port: gains soft_reset
- unix port: gains soft_reset
- zephyr port: gains soft_reset, mem8, mem16, mem32
Signed-off-by: Damien George <damien@micropython.org>
This is a code factoring to have the Python bindings in one location, and
all the ports use those same bindings. For all ports except the two listed
below there is no functional change.
The nrf port has UART.sendbreak() removed, but this method previously did
nothing.
The zephyr port has the following methods added:
- UART.init(): supports setting timeout and timeout_char.
- UART.deinit(): does nothing, just returns None.
- UART.flush(): raises OSError(EINVAL) because it's not implemented.
- UART.any() and UART.txdone(): raise NotImplementedError.
Signed-off-by: Damien George <damien@micropython.org>
Updates any includes, and references from Makefiles/CMake.
This essentially reverts what was done long ago in commit
136b5cbd76
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
API change: time.time_ns() is added, but it just returns 0.
No API or functional change to existing time functions.
Signed-off-by: Damien George <damien@micropython.org>
As a prerequisite to upgrading to Zephyr v2.7.0, upgrade the minimum
CMake version required for the Zephyr port to 3.20.0.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
Adds support for hardware SPI to the zephyr port. Consistent with other
ports, such as rp2 and stm32, we only implement the SPI protocol functions
(init and transfer). Explicit sck/mosi/miso selection is not supported
and new SPI instances are initialized with default values.
Currently only advertising and scanning are supported, using the ring
buffer for events (ie not synchronous events at this stage).
The ble_gap_advertise.py multi-test passes (tested on a nucleo_wb55rg
board).
Signed-off-by: Damien George <damien@micropython.org>
And ctrl-C can now interrupt a time.sleep call. This uses Zephyr's k_poll
API to wait efficiently for an event signal, and an optional semaphore.
Signed-off-by: Damien George <damien@micropython.org>
Refactors the zephyr build infrastructure to build MicroPython as a
cmake target, using the recently introduced core cmake rules.
This change makes it possible to build the zephyr port like most other
zephyr applications using west or cmake directly. It simplifies building
with extra cmake arguments, such as specifying an alternate conf file or
adding an Arduino shield. It also enables building the zephyr port
anywhere in the host file system, which will allow regressing across
multiple boards with the zephyr twister script.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
