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67b6d9d499
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>
17 lines
389 B
C
17 lines
389 B
C
#ifndef __MICROPY_INCLUDED_ZEPHYR_MODMACHINE_H__
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#define __MICROPY_INCLUDED_ZEPHYR_MODMACHINE_H__
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#include "py/obj.h"
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extern const mp_obj_type_t machine_pin_type;
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MP_DECLARE_CONST_FUN_OBJ_0(machine_info_obj);
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typedef struct _machine_pin_obj_t {
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mp_obj_base_t base;
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struct device *port;
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uint32_t pin;
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} machine_pin_obj_t;
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#endif // __MICROPY_INCLUDED_ZEPHYR_MODMACHINE_H__
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