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https://github.com/licsber/micropython.git
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d693758ab2
Features are:
- 3 to 5 different frequency groups.
- Freq range of 1Hz - 24 MHz.
- Duty rate stays stable on freq change.
Keyword options to the PWM constructor:
- device=n Select a specific PWM device. If no device is specified, a free
device is chosen, if available at that pin.
- freq=nnnn
- duty_u16=nnnn
- duty_ns=nnnn
- invert=True/False Allowing two outputs on the same device/channel to have
complementary signals.
If both freq and duty are provided, PWM output will start immediately.
Pins at the same device have the same frequency. If the PWM output number
exceeds the number of channels at the PWM device, the effctive channel_no
is output_no % channel_count. So with a channel count of 4, output 7 is
assigned to channel 3. Pins at a certain channel have the same frequency
and duty rate, but may be seperately inverted.
127 lines
5.1 KiB
C
127 lines
5.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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// Options controlling how MicroPython is built, overriding defaults in py/mpconfig.h
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// Board specific definitions
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#include "mpconfigboard.h"
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// MCU-Specific definitions
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#include MPCONFIG_MCU_H
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// Memory allocation policies
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#define MICROPY_GC_STACK_ENTRY_TYPE uint16_t
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#define MICROPY_GC_ALLOC_THRESHOLD (0)
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#define MICROPY_ALLOC_PARSE_CHUNK_INIT (32)
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#define MICROPY_ALLOC_PATH_MAX (256)
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#define MICROPY_QSTR_BYTES_IN_HASH (1)
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// Compiler configuration
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#define MICROPY_COMP_CONST (0)
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// Python internal features
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#define MICROPY_ENABLE_GC (1)
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#define MICROPY_ENABLE_FINALISER (1)
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#define MICROPY_KBD_EXCEPTION (1)
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#define MICROPY_HELPER_REPL (1)
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#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
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#define MICROPY_ENABLE_SOURCE_LINE (1)
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_TERSE)
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#define MICROPY_CPYTHON_COMPAT (0)
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#define MICROPY_CAN_OVERRIDE_BUILTINS (1)
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#define MICROPY_PY_BUILTINS_HELP (1)
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#define MICROPY_PY_BUILTINS_HELP_TEXT samd_help_text
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#define MICROPY_PY_BUILTINS_HELP_MODULES (1)
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// fixes sys/usys import issue
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#define MICROPY_MODULE_WEAK_LINKS (1)
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// Control over Python builtins
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#define MICROPY_PY_ASYNC_AWAIT (0)
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#define MICROPY_PY_BUILTINS_BYTES_HEX (1)
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#define MICROPY_PY_BUILTINS_STR_COUNT (0)
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#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
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#define MICROPY_PY_BUILTINS_SET (0)
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#define MICROPY_PY_BUILTINS_FROZENSET (0)
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#define MICROPY_PY_BUILTINS_PROPERTY (0)
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#define MICROPY_PY_BUILTINS_ENUMERATE (0)
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#define MICROPY_PY_BUILTINS_FILTER (0)
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#define MICROPY_PY_BUILTINS_REVERSED (0)
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#define MICROPY_PY_BUILTINS_NOTIMPLEMENTED (1)
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#define MICROPY_PY_BUILTINS_MIN_MAX (0)
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#define MICROPY_PY___FILE__ (0)
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#define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
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#define MICROPY_PY_ARRAY_SLICE_ASSIGN (1)
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#define MICROPY_PY_ATTRTUPLE (0)
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#define MICROPY_PY_COLLECTIONS (0)
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#define MICROPY_PY_SYS (1)
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#define MICROPY_PY_SYS_PLATFORM "samd"
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#define MICROPY_PY_SYS_EXIT (1)
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#define MICROPY_PY_SYS_STDFILES (1)
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#define MICROPY_PY_SYS_MAXSIZE (1)
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#define MICROPY_PY_IO (1)
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#define MICROPY_PY_IO_IOBASE (1)
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// Extended modules
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#define MICROPY_PY_UTIME_MP_HAL (1)
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#define MICROPY_PY_MACHINE (1)
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#define MICROPY_PY_UOS (1)
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#define MICROPY_READER_VFS (1)
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#define MICROPY_VFS (1)
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#define MICROPY_PY_UJSON (1)
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#define MICROPY_PY_URE (1)
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#define MICROPY_PY_UBINASCII (1)
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#define MICROPY_PY_UCTYPES (1)
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#define MICROPY_PY_UHEAPQ (1)
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#define MICROPY_PY_URANDOM (1)
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#define MICROPY_PY_UZLIB (1)
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#define MICROPY_PY_UASYNCIO (1)
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#define MICROPY_PY_MACHINE_SOFTI2C (1)
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#define MICROPY_PY_MACHINE_SOFTSPI (1)
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#define MICROPY_PY_MACHINE_PWM (1)
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#define MICROPY_PY_MACHINE_PWM_INIT (0)
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#define MICROPY_PY_MACHINE_PWM_DUTY_U16_NS (1)
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#define MICROPY_PY_MACHINE_PWM_INCLUDEFILE "ports/samd/machine_pwm.c"
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#define MP_STATE_PORT MP_STATE_VM
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// Miscellaneous settings
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#define MICROPY_EVENT_POLL_HOOK \
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do { \
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extern void mp_handle_pending(bool); \
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mp_handle_pending(true); \
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__WFI(); \
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} while (0);
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#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void *)((mp_uint_t)(p) | 1))
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#define MP_SSIZE_MAX (0x7fffffff)
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typedef int mp_int_t; // must be pointer size
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typedef unsigned mp_uint_t; // must be pointer size
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typedef long mp_off_t;
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// Need to provide a declaration/definition of alloca()
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#include <alloca.h>
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