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Daniel Thompson 67b6d9d499 zephyr: Initial implementation of machine.Pin. 
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).

Example of pin initialization:

pin = Pin(("GPIO_1", 21), Pin.OUT)

(an LED on FRDM-K64F's Port B, Pin 21).

There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
 		2016-10-27 00:47:26 +03:00
..
src zephyr: Add copyright blurbs. 2016-10-12 22:51:17 +03:00
Kbuild zephyr: Initial Zephyr RTOS port, Zephyr part. 2016-10-10 01:35:24 +03:00
Makefile zephyr: Initial implementation of machine.Pin. 2016-10-27 00:47:26 +03:00
Makefile.zephyr zephyr: Switch to microkernel, required for network to work in background. 2016-10-10 01:41:38 +03:00
README.md zephyr: Add README. 2016-10-10 21:23:58 +03:00
help.c zephyr: Implement the help() function. 2016-10-12 19:31:39 +03:00
machine_pin.c zephyr: Initial implementation of machine.Pin. 2016-10-27 00:47:26 +03:00
main.c zephyr: Add copyright blurbs. 2016-10-12 22:51:17 +03:00
modmachine.c zephyr: Initial implementation of machine.Pin. 2016-10-27 00:47:26 +03:00
modmachine.h zephyr: Initial implementation of machine.Pin. 2016-10-27 00:47:26 +03:00
modutime.c zephyr: Implement utime module. 2016-10-22 20:15:26 +03:00
mpconfigport.h zephyr: Initial implementation of machine.Pin. 2016-10-27 00:47:26 +03:00
mphalport.h zephyr: Fix mp_hal_set_interrupt_char() declaration to be compatible. 2016-10-26 17:53:28 +03:00
prj.conf zephyr: Initial Zephyr RTOS port, Zephyr part. 2016-10-10 01:35:24 +03:00
prj.mdef zephyr: Switch to microkernel, required for network to work in background. 2016-10-10 01:41:38 +03:00
uart_core.c zephyr: Add copyright blurbs. 2016-10-12 22:51:17 +03:00
z_config.mk zephyr/Makefile: Automatically derive target-specific CFLAGS. 2016-10-10 02:06:06 +03:00

README.md

MicroPython port to Zephyr RTOS

This is an initial port of MicroPython to Zephyr RTOS (http://zephyrproject.org).

The port integrates well with Zephyr build system, using the latest features which will be available in 1.6.0, and thus requires Zephyr master to build against. All boards supported by Zephyr should be supported (but not all were tested).

At this time, only basic interactive prompt (REPL) over UART connection is supported. Over time, bindings for various Zephyr subsystems may be added.

Building

Follow to Zephyr web site for Getting Started instruction of installing Zephyr SDK, getting Zephyr source code, and setting up development environment. (Direct link: https://www.zephyrproject.org/doc/getting_started/getting_started.html). You may want to build Zephyr's own sample applications to make sure your setup is correct.

To build MicroPython port, in the port subdirectory (zephyr/), run:

make BOARD=<board>

If you don't specify BOARD, the default is qemu_x86 (x86 target running in QEMU emulator). Consult Zephyr documentation above for the list of supported boards.

Running

To run the resulting application in QEMU (for BOARDs like qemu_x86, qemu_cortex_m3):

make qemu

For deploying/flashing the application on a real board, follow Zephyr documentation for a given board.