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https://github.com/licsber/micropython.git
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de1f1dd164
Before, both uwTick and mp_hal_ticks_ms() were used as clock source. That assumes, that these two are synchronous and start with the same value, which may be not the case for all ports. If the lag between uwTick and mp_hal_ticks_ms() is larger than the timer interval, the timer would either rush up until the times are synchronous, or not start until uwTick wraps over. As suggested by @dpgeorge, MICROPY_SOFT_TIMER_TICKS_MS is now used in softtimer.c, which has to be defined in a port's mpconfigport.h with the variable that holds the SysTick counter. Note that it's not possible to switch everything in softtimer.c to use mp_hal_ticks_ms() because the logic in SysTick_Handler that schedules soft_timer_handler() uses (eg on mimxrt) the uwTick variable directly (named systick_ms there), and mp_hal_ticks_ms() uses a different source timer. Thus it is made fully configurable.
143 lines
5.6 KiB
C
143 lines
5.6 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 "mpconfigmcu.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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// MicroPython emitters
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#define MICROPY_PERSISTENT_CODE_LOAD (1)
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// Compiler configuration
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#define MICROPY_COMP_CONST (1)
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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_REPL_AUTO_INDENT (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_STREAMS_NON_BLOCK (1)
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_TERSE)
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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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#define MICROPY_ENABLE_SCHEDULER (1)
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#define MICROPY_SCHEDULER_STATIC_NODES (1)
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#define MICROPY_MODULE_WEAK_LINKS (1)
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#define MICROPY_HW_USB_CDC_1200BPS_TOUCH (1)
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// Control over Python builtins
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#define MICROPY_PY_BUILTINS_BYTES_HEX (1)
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#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
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#define MICROPY_PY_BUILTINS_INPUT (1)
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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_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_PY_UOS_INCLUDEFILE "ports/samd/moduos.c"
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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_I2C (1)
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#define MICROPY_PY_MACHINE_SOFTI2C (1)
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#define MICROPY_PY_MACHINE_SPI (1)
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#define MICROPY_PY_MACHINE_SOFTSPI (1)
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#define MICROPY_HW_SOFTSPI_MIN_DELAY (1)
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#define MICROPY_HW_SOFTSPI_MAX_BAUDRATE (1000000)
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#define MICROPY_PY_MACHINE_TIMER (1)
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#define MICROPY_SOFT_TIMER_TICKS_MS systick_ms
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#define MICROPY_PY_OS_DUPTERM (3)
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#define MICROPY_PY_MACHINE_BITSTREAM (1)
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#define MICROPY_PY_MACHINE_PULSE (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 MICROPY_PY_MACHINE_PIN_MAKE_NEW mp_pin_make_new
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#define MP_STATE_PORT MP_STATE_VM
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// Miscellaneous settings
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__attribute__((always_inline)) static inline void enable_irq(uint32_t state) {
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__set_PRIMASK(state);
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}
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__attribute__((always_inline)) static inline uint32_t disable_irq(void) {
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uint32_t state = __get_PRIMASK();
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__disable_irq();
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return state;
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}
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#define MICROPY_BEGIN_ATOMIC_SECTION() disable_irq()
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#define MICROPY_END_ATOMIC_SECTION(state) enable_irq(state)
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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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__WFE(); \
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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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