head	1.2;
access;
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	micropython-1-5-2-base:1.1.1.1 MICROPYTHON:1.1.1;
locks; strict;
comment	@ * @;


1.2
date	2026.10.15.05.28.45;	author agc;	state dead;
branches;
next	1.1;
commitid	aHLdC1EGCUYk7xZG;

1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches
	1.1.1.1;
next	;
commitid	Q8liT0v6zMF95QQy;

1.1.1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches;
next	;
commitid	Q8liT0v6zMF95QQy;


desc
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1.2
log
@Remove waaaay old micropython sources which haven't been relevant for 10 years
@
text
@/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 Damien P. George
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <string.h>

#include STM32_HAL_H

#include "py/nlr.h"
#include "py/runtime.h"
#include "pin.h"
#include "genhdr/pins.h"
#include "i2c.h"
#include "accel.h"

#if MICROPY_HW_HAS_MMA7660

/// \moduleref pyb
/// \class Accel - accelerometer control
///
/// Accel is an object that controls the accelerometer.  Example usage:
///
///     accel = pyb.Accel()
///     for i in range(10):
///         print(accel.x(), accel.y(), accel.z())
///
/// Raw values are between -32 and 31.

#define MMA_ADDR (0x98)
#define MMA_REG_X (0)
#define MMA_REG_Y (1)
#define MMA_REG_Z (2)
#define MMA_REG_TILT (3)
#define MMA_REG_MODE (7)
#define MMA_AXIS_SIGNED_VALUE(i) (((i) & 0x3f) | ((i) & 0x20 ? (~0x1f) : 0))

void accel_init(void) {
    GPIO_InitTypeDef GPIO_InitStructure;

    // PB5 is connected to AVDD; pull high to enable MMA accel device
    MICROPY_HW_MMA_AVDD_PIN.gpio->BSRRH = MICROPY_HW_MMA_AVDD_PIN.pin_mask; // turn off AVDD
    GPIO_InitStructure.Pin = MICROPY_HW_MMA_AVDD_PIN.pin_mask;
    GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
    GPIO_InitStructure.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(MICROPY_HW_MMA_AVDD_PIN.gpio, &GPIO_InitStructure);
}

STATIC void accel_start(void) {
    // start the I2C bus in master mode
    I2CHandle1.Init.AddressingMode  = I2C_ADDRESSINGMODE_7BIT;
    I2CHandle1.Init.ClockSpeed      = 400000;
    I2CHandle1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
    I2CHandle1.Init.DutyCycle       = I2C_DUTYCYCLE_16_9;
    I2CHandle1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
    I2CHandle1.Init.NoStretchMode   = I2C_NOSTRETCH_DISABLED;
    I2CHandle1.Init.OwnAddress1     = PYB_I2C_MASTER_ADDRESS;
    I2CHandle1.Init.OwnAddress2     = 0xfe; // unused
    i2c_init(&I2CHandle1);

    // turn off AVDD, wait 30ms, turn on AVDD, wait 30ms again
    MICROPY_HW_MMA_AVDD_PIN.gpio->BSRRH = MICROPY_HW_MMA_AVDD_PIN.pin_mask; // turn off
    HAL_Delay(30);
    MICROPY_HW_MMA_AVDD_PIN.gpio->BSRRL = MICROPY_HW_MMA_AVDD_PIN.pin_mask; // turn on
    HAL_Delay(30);

    HAL_StatusTypeDef status;

    //printf("IsDeviceReady\n");
    for (int i = 0; i < 10; i++) {
        status = HAL_I2C_IsDeviceReady(&I2CHandle1, MMA_ADDR, 10, 200);
        //printf("  got %d\n", status);
        if (status == HAL_OK) {
            break;
        }
    }

    // set MMA to active mode
    uint8_t data[1] = {1}; // active mode
    status = HAL_I2C_Mem_Write(&I2CHandle1, MMA_ADDR, MMA_REG_MODE, I2C_MEMADD_SIZE_8BIT, data, 1, 200);

    // wait for MMA to become active
    HAL_Delay(30);
}

/******************************************************************************/
/* Micro Python bindings                                                      */

#define NUM_AXIS (3)
#define FILT_DEPTH (4)

typedef struct _pyb_accel_obj_t {
    mp_obj_base_t base;
    int16_t buf[NUM_AXIS * FILT_DEPTH];
} pyb_accel_obj_t;

STATIC pyb_accel_obj_t pyb_accel_obj;

/// \classmethod \constructor()
/// Create and return an accelerometer object.
///
/// Note: if you read accelerometer values immediately after creating this object
/// you will get 0.  It takes around 20ms for the first sample to be ready, so,
/// unless you have some other code between creating this object and reading its
/// values, you should put a `pyb.delay(20)` after creating it.  For example:
///
///     accel = pyb.Accel()
///     pyb.delay(20)
///     print(accel.x())
STATIC mp_obj_t pyb_accel_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
    // check arguments
    mp_arg_check_num(n_args, n_kw, 0, 0, false);

    // init accel object
    pyb_accel_obj.base.type = &pyb_accel_type;
    accel_start();

    return &pyb_accel_obj;
}

STATIC mp_obj_t read_axis(int axis) {
    uint8_t data[1];
    HAL_I2C_Mem_Read(&I2CHandle1, MMA_ADDR, axis, I2C_MEMADD_SIZE_8BIT, data, 1, 200);
    return mp_obj_new_int(MMA_AXIS_SIGNED_VALUE(data[0]));
}

/// \method x()
/// Get the x-axis value.
STATIC mp_obj_t pyb_accel_x(mp_obj_t self_in) {
    return read_axis(MMA_REG_X);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_x_obj, pyb_accel_x);

/// \method y()
/// Get the y-axis value.
STATIC mp_obj_t pyb_accel_y(mp_obj_t self_in) {
    return read_axis(MMA_REG_Y);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_y_obj, pyb_accel_y);

/// \method z()
/// Get the z-axis value.
STATIC mp_obj_t pyb_accel_z(mp_obj_t self_in) {
    return read_axis(MMA_REG_Z);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_z_obj, pyb_accel_z);

/// \method tilt()
/// Get the tilt register.
STATIC mp_obj_t pyb_accel_tilt(mp_obj_t self_in) {
    uint8_t data[1];
    HAL_I2C_Mem_Read(&I2CHandle1, MMA_ADDR, MMA_REG_TILT, I2C_MEMADD_SIZE_8BIT, data, 1, 200);
    return mp_obj_new_int(data[0]);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_tilt_obj, pyb_accel_tilt);

/// \method filtered_xyz()
/// Get a 3-tuple of filtered x, y and z values.
STATIC mp_obj_t pyb_accel_filtered_xyz(mp_obj_t self_in) {
    pyb_accel_obj_t *self = self_in;

    memmove(self->buf, self->buf + NUM_AXIS, NUM_AXIS * (FILT_DEPTH - 1) * sizeof(int16_t));

    uint8_t data[NUM_AXIS];
    HAL_I2C_Mem_Read(&I2CHandle1, MMA_ADDR, MMA_REG_X, I2C_MEMADD_SIZE_8BIT, data, NUM_AXIS, 200);

    mp_obj_t tuple[NUM_AXIS];
    for (int i = 0; i < NUM_AXIS; i++) {
        self->buf[NUM_AXIS * (FILT_DEPTH - 1) + i] = MMA_AXIS_SIGNED_VALUE(data[i]);
        int32_t val = 0;
        for (int j = 0; j < FILT_DEPTH; j++) {
            val += self->buf[i + NUM_AXIS * j];
        }
        tuple[i] = mp_obj_new_int(val);
    }

    return mp_obj_new_tuple(3, tuple);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_accel_filtered_xyz_obj, pyb_accel_filtered_xyz);

STATIC mp_obj_t pyb_accel_read(mp_obj_t self_in, mp_obj_t reg) {
    uint8_t data[1];
    HAL_I2C_Mem_Read(&I2CHandle1, MMA_ADDR, mp_obj_get_int(reg), I2C_MEMADD_SIZE_8BIT, data, 1, 200);
    return mp_obj_new_int(data[0]);
}
MP_DEFINE_CONST_FUN_OBJ_2(pyb_accel_read_obj, pyb_accel_read);

STATIC mp_obj_t pyb_accel_write(mp_obj_t self_in, mp_obj_t reg, mp_obj_t val) {
    uint8_t data[1];
    data[0] = mp_obj_get_int(val);
    HAL_I2C_Mem_Write(&I2CHandle1, MMA_ADDR, mp_obj_get_int(reg), I2C_MEMADD_SIZE_8BIT, data, 1, 200);
    return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_3(pyb_accel_write_obj, pyb_accel_write);

STATIC const mp_map_elem_t pyb_accel_locals_dict_table[] = {
    // TODO add init, deinit, and perhaps reset methods
    { MP_OBJ_NEW_QSTR(MP_QSTR_x), (mp_obj_t)&pyb_accel_x_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_y), (mp_obj_t)&pyb_accel_y_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_z), (mp_obj_t)&pyb_accel_z_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_tilt), (mp_obj_t)&pyb_accel_tilt_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_filtered_xyz), (mp_obj_t)&pyb_accel_filtered_xyz_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&pyb_accel_read_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&pyb_accel_write_obj },
};

STATIC MP_DEFINE_CONST_DICT(pyb_accel_locals_dict, pyb_accel_locals_dict_table);

const mp_obj_type_t pyb_accel_type = {
    { &mp_type_type },
    .name = MP_QSTR_Accel,
    .make_new = pyb_accel_make_new,
    .locals_dict = (mp_obj_t)&pyb_accel_locals_dict,
};

#endif // MICROPY_HW_HAS_MMA7660
@


1.1
log
@Initial revision
@
text
@@


1.1.1.1
log
@Import micropython version 1.5.2 into othersrc.

Micropython is a python3 implementation that has been optimised for
micro-controllers and small embedded systems.  It also has a "unix"
port. It has an MIT license.

This is version 1.5.2 of micropython.

	MicroPython implements the entire Python 3.4 syntax (including
	exceptions, "with", "yield from", etc.).  The following core
	datatypes are provided:  str (including basic Unicode
	support), bytes, bytearray, tuple, list, dict, set, frozenset,
	array.array, collections.namedtuple, classes and instances. 
	Builtin modules include sys, time, and struct.  Note that only
	subset of Python 3.4 functionality implemented for the data
	types and modules.

This is the standard micropython source (version v1.5.2), which has been
adapted to use reachover infrastructure. At the present time, libffi
(from pkgsrc) is used. Alternative locations for libffi can be set
using the PKGSRC_PREFIX definition to make.

In the whole scheme of things, micropython is quite small:

	% size bin/micropython
	   text    data     bss     dec     hex filename
	 393495    1624    2208  397327   6100f bin/micropython
	%

and runs much as expected:

	% bin/micropython
	MicroPython v1.5.2 on 2016-01-13; linux version
	Use Ctrl-D to exit, Ctrl-E for paste mode
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>>
	% python2.7
	Python 2.7.10 (default, Oct 17 2015, 17:55:29)
	[GCC 4.8.5] on netbsd7
	Type "help", "copyright", "credits" or "license" for more information.
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>> ^D
	%

This (reachover) version runs all the tests which the gmake version does.

	% make t
	cd bin && make t
	cd /home/agc/local/micropython/bin/../dist/unix/../tests && env MICROPY_MICROPYTHON=/home/agc/local/micropython/bin/micropython ./run-tests
	pass  basics/0prelim.py
	pass  basics/andor.py
	pass  basics/array1.py
	pass  basics/array_add.py
	pass  basics/array_construct.py
	pass  basics/array_construct2.py
	...
	pass  unix/ffi_callback.py
	pass  unix/ffi_float.py
	pass  unix/ffi_float2.py
	474 tests performed (15812 individual testcases)
	474 tests passed
	5 tests skipped: cmd_showbc cmd_verbose machine1 machine_mem extra_coverage
	%

The sources are available from github:
	https://github.com/micropython/micropython

micropython release at:
	https://github.com/micropython/micropython/releases

Sources for 1.5.2 taken from:
	https://github.com/micropython/micropython/archive/v1.5.2.tar.gz

Alistair Crooks
agc@@netbsd.org
Wed Jan 13 17:15:30 PST 2016
@
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@@
