570 lines
21 KiB
C
570 lines
21 KiB
C
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/*
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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) 2013, 2014 Damien P. George
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* Copyright (c) 2021 Renesas Electronics Corporation
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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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#include <stdint.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "py/gc.h"
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#include "timer.h"
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#include "pin.h"
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#include "irq.h"
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#define TIMER_SIZE 2
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void timer_irq_handler(void *param);
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STATIC mp_obj_t pyb_timer_freq(size_t n_args, const mp_obj_t *args);
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#if defined(TIMER_CHANNEL)
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typedef struct _pyb_timer_channel_obj_t {
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mp_obj_base_t base;
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struct _pyb_timer_obj_t *timer;
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uint8_t channel;
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mp_obj_t callback;
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struct _pyb_timer_channel_obj_t *next;
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} pyb_timer_channel_obj_t;
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#endif
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typedef struct _pyb_timer_obj_t {
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mp_obj_base_t base;
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uint8_t tim_id;
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mp_obj_t callback;
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#if defined(TIMER_CHANNEL)
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pyb_timer_channel_obj_t *channel;
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#endif
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} pyb_timer_obj_t;
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#define PYB_TIMER_OBJ_ALL_NUM MP_ARRAY_SIZE(MP_STATE_PORT(pyb_timer_obj_all))
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STATIC mp_obj_t pyb_timer_deinit(mp_obj_t self_in);
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STATIC mp_obj_t pyb_timer_callback(mp_obj_t self_in, mp_obj_t callback);
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#if defined(TIMER_CHANNEL)
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STATIC mp_obj_t pyb_timer_channel_callback(mp_obj_t self_in, mp_obj_t callback);
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#endif
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static const int ra_agt_timer_ch[TIMER_SIZE] = {1, 2};
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void timer_init0(void) {
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for (uint i = 0; i < PYB_TIMER_OBJ_ALL_NUM; i++) {
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MP_STATE_PORT(pyb_timer_obj_all)[i] = NULL;
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}
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}
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// unregister all interrupt sources
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void timer_deinit(void) {
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for (uint i = 0; i < PYB_TIMER_OBJ_ALL_NUM; i++) {
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pyb_timer_obj_t *tim = MP_STATE_PORT(pyb_timer_obj_all)[i];
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if (tim != NULL) {
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pyb_timer_deinit(MP_OBJ_FROM_PTR(tim));
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}
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}
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}
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/*
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* Timer Class
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*/
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STATIC void pyb_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_printf(print, "Timer(%u)", self->tim_id);
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}
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/// \method init(*, freq, prescaler, period)
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/// Initialise the timer. Initialisation must be either by frequency (in Hz)
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/// or by prescaler and period:
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///
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/// tim.init(freq=100) # set the timer to trigger at 100Hz
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///
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/// Keyword arguments:
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///
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/// - `freq` - specifies the periodic frequency of the timer. You migh also
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/// view this as the frequency with which the timer goes through
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/// one complete cycle.
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//////
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/// - `callback` - as per Timer.callback()
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//////
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/// You must either specify freq.
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STATIC mp_obj_t pyb_timer_init_helper(pyb_timer_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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// enum { ARG_freq, ARG_prescaler, ARG_period, ARG_tick_hz, ARG_mode, ARG_div, ARG_callback, ARG_deadtime };
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enum { ARG_freq, ARG_callback };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_freq, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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{ MP_QSTR_callback, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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};
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// parse args
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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// init TIM
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for (int i = 1; i <= TIMER_SIZE; i++) {
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ra_agt_timer_set_callback(i - 1, (AGT_TIMER_CB)timer_irq_handler, (void *)&ra_agt_timer_ch[i - 1]);
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}
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ra_agt_timer_init(self->tim_id - 1, 1.0f);
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if (args[ARG_freq].u_obj != mp_const_none) {
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mp_obj_t freq_args[2];
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freq_args[0] = self;
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freq_args[1] = args[ARG_freq].u_obj;
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pyb_timer_freq(2, (const mp_obj_t *)&freq_args);
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} else {
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mp_raise_TypeError(MP_ERROR_TEXT("must specify either freq, period, or prescaler and period"));
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}
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// Enable ARPE so that the auto-reload register is buffered.
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// This allows to smoothly change the frequency of the timer.
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// Start the timer running
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if (args[ARG_callback].u_obj == mp_const_none) {
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// do nothing
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} else {
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pyb_timer_callback(MP_OBJ_FROM_PTR(self), args[ARG_callback].u_obj);
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}
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return mp_const_none;
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}
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/// \classmethod \constructor(id, ...)
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/// Construct a new timer object of the given id. If additional
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/// arguments are given, then the timer is initialised by `init(...)`.
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/// `id` can be 1 to 14, excluding 3.
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STATIC mp_obj_t pyb_timer_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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// check arguments
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mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
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// get the timer id
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mp_int_t tim_id = mp_obj_get_int(args[0]);
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// create new Timer object
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pyb_timer_obj_t *tim;
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if (MP_STATE_PORT(pyb_timer_obj_all)[tim_id - 1] == NULL) {
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// create new Timer object
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tim = m_new_obj(pyb_timer_obj_t);
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memset(tim, 0, sizeof(*tim));
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tim->base.type = &pyb_timer_type;
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tim->tim_id = tim_id;
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tim->callback = mp_const_none;
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MP_STATE_PORT(pyb_timer_obj_all)[tim_id - 1] = tim;
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} else {
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// reference existing Timer object
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tim = MP_STATE_PORT(pyb_timer_obj_all)[tim_id - 1];
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}
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if (n_args > 1 || n_kw > 0) {
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// start the peripheral
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mp_map_t kw_args;
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mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
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pyb_timer_init_helper(tim, n_args - 1, args + 1, &kw_args);
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}
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return MP_OBJ_FROM_PTR(tim);
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}
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STATIC mp_obj_t pyb_timer_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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return pyb_timer_init_helper(MP_OBJ_TO_PTR(args[0]), n_args - 1, args + 1, kw_args);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_timer_init_obj, 1, pyb_timer_init);
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/// \method deinit()
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/// Deinitialises the timer.
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///
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/// Disables the callback (and the associated irq).
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/// Disables any channel callbacks (and the associated irq).
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/// Stops the timer, and disables the timer peripheral.
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STATIC mp_obj_t pyb_timer_deinit(mp_obj_t self_in) {
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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// Disable the base interrupt
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pyb_timer_callback(self_in, mp_const_none);
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#if defined(TIMER_CHANNEL)
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pyb_timer_channel_obj_t *chan = self->channel;
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self->channel = NULL;
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// Disable the channel interrupts
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while (chan != NULL) {
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pyb_timer_channel_callback(MP_OBJ_FROM_PTR(chan), mp_const_none);
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pyb_timer_channel_obj_t *prev_chan = chan;
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chan = chan->next;
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prev_chan->next = NULL;
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}
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#endif
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ra_agt_timer_deinit(self->tim_id - 1);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_timer_deinit_obj, pyb_timer_deinit);
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#if defined(TIMER_CHANNEL)
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/// \method channel(channel, mode, ...)
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///
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/// If only a channel number is passed, then a previously initialized channel
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/// object is returned (or `None` if there is no previous channel).
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///
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/// Othwerwise, a TimerChannel object is initialized and returned.
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///
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/// Each channel can be configured to perform pwm, output compare, or
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/// input capture. All channels share the same underlying timer, which means
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/// that they share the same timer clock.
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///
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STATIC mp_obj_t pyb_timer_channel(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_callback, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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{ MP_QSTR_compare, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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};
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_int_t channel = mp_obj_get_int(pos_args[1]);
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if (channel < 1 || channel > 4) {
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mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("invalid channel (%d)"), channel);
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}
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pyb_timer_channel_obj_t *chan = self->channel;
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pyb_timer_channel_obj_t *prev_chan = NULL;
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while (chan != NULL) {
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if (chan->channel == channel) {
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break;
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}
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prev_chan = chan;
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chan = chan->next;
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}
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// If only the channel number is given return the previously allocated
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// channel (or None if no previous channel).
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if (n_args == 2 && kw_args->used == 0) {
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if (chan) {
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return MP_OBJ_FROM_PTR(chan);
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}
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return mp_const_none;
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}
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// If there was already a channel, then remove it from the list. Note that
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// the order we do things here is important so as to appear atomic to
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// the IRQ handler.
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if (chan) {
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// Turn off any IRQ associated with the channel.
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pyb_timer_channel_callback(MP_OBJ_FROM_PTR(chan), mp_const_none);
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// Unlink the channel from the list.
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if (prev_chan) {
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prev_chan->next = chan->next;
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}
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self->channel = chan->next;
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chan->next = NULL;
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}
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// Allocate and initialize a new channel
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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chan = m_new_obj(pyb_timer_channel_obj_t);
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memset(chan, 0, sizeof(*chan));
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chan->base.type = &pyb_timer_channel_type;
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chan->timer = self;
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chan->channel = channel;
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chan->callback = args[1].u_obj;
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mp_obj_t pin_obj = args[2].u_obj;
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if (pin_obj != mp_const_none) {
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// ToDo
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}
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// Link the channel to the timer before we turn the channel on.
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// Note that this needs to appear atomic to the IRQ handler (the write
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// to self->channel is atomic, so we're good, but I thought I'd mention
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// in case this was ever changed in the future).
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chan->next = self->channel;
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self->channel = chan;
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// ToDo
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return MP_OBJ_FROM_PTR(chan);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_timer_channel_obj, 2, pyb_timer_channel);
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#endif
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#if TIMER_COUNTER
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// Not implemented
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/// \method counter([value])
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/// Get or set the timer counter.
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STATIC mp_obj_t pyb_timer_counter(size_t n_args, const mp_obj_t *args) {
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// get
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return mp_obj_new_int((int)ra_agt_timer_get_counter(self->tim_id));
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} else {
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// set
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ra_agt_timer_set_counter((unsigned int)self->tim_id, (unsigned long)mp_obj_get_int(args[1]));
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_counter_obj, 1, 2, pyb_timer_counter);
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#endif
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/// \method freq([value])
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/// Get or set the frequency for the timer (changes prescaler and period if set).
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STATIC mp_obj_t pyb_timer_freq(size_t n_args, const mp_obj_t *args) {
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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int ch = self->tim_id - 1;
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if (n_args == 1) {
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// get
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#if MICROPY_PY_BUILTINS_FLOAT
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float freq = ra_agt_timer_get_freq(ch);
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return mp_obj_new_float(freq);
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#else
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uint32_t freq = (uint32_t)ra_agt_timer_get_freq(ch);
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return mp_obj_new_int(freq);
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#endif
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} else {
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// set
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uint32_t freq;
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if (0) {
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#if MICROPY_PY_BUILTINS_FLOAT
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} else if (mp_obj_is_type(args[1], &mp_type_float)) {
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freq = (int)mp_obj_get_float(args[1]);
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#endif
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} else {
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freq = mp_obj_get_int(args[1]);
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}
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if (freq == 0) {
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mp_raise_ValueError(MP_ERROR_TEXT("freq must not be 0"));
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}
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ra_agt_timer_stop(ch);
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ra_agt_timer_set_freq(ch, (float)freq);
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ra_agt_timer_start(ch);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_freq_obj, 1, 2, pyb_timer_freq);
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#if TIMER_PERIOD
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// Not implemented
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/// \method period([value])
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/// Get or set the period of the timer.
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STATIC mp_obj_t pyb_timer_period(size_t n_args, const mp_obj_t *args) {
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pyb_timer_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// get
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return mp_obj_new_int((int)ra_agt_timer_get_period(self->tim_id));
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return mp_const_none;
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} else {
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// set
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ra_agt_timer_set_period((uint32_t)self->tim_id, (uint16_t)mp_obj_get_int(args[1]));
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_period_obj, 1, 2, pyb_timer_period);
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#endif
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/// \method callback(fun)
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/// Set the function to be called when the timer triggers.
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/// `fun` is passed 1 argument, the timer object.
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||
|
/// If `fun` is `None` then the callback will be disabled.
|
||
|
STATIC mp_obj_t pyb_timer_callback(mp_obj_t self_in, mp_obj_t callback) {
|
||
|
pyb_timer_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
||
|
if (callback == mp_const_none) {
|
||
|
// stop interrupt (but not timer)
|
||
|
// __HAL_TIM_DISABLE_IT(&self->tim, TIM_IT_UPDATE);
|
||
|
self->callback = mp_const_none;
|
||
|
} else if (mp_obj_is_callable(callback)) {
|
||
|
// __HAL_TIM_DISABLE_IT(&self->tim, TIM_IT_UPDATE);
|
||
|
self->callback = callback;
|
||
|
// start timer, so that it interrupts on overflow, but clear any
|
||
|
// pending interrupts which may have been set by initializing it.
|
||
|
// __HAL_TIM_CLEAR_FLAG(&self->tim, TIM_IT_UPDATE);
|
||
|
// HAL_TIM_Base_Start_IT(&self->tim); // This will re-enable the IRQ
|
||
|
// HAL_NVIC_EnableIRQ(self->irqn);
|
||
|
} else {
|
||
|
mp_raise_ValueError(MP_ERROR_TEXT("callback must be None or a callable object"));
|
||
|
}
|
||
|
return mp_const_none;
|
||
|
}
|
||
|
STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_timer_callback_obj, pyb_timer_callback);
|
||
|
|
||
|
STATIC const mp_rom_map_elem_t pyb_timer_locals_dict_table[] = {
|
||
|
// instance methods
|
||
|
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&pyb_timer_init_obj) },
|
||
|
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&pyb_timer_deinit_obj) },
|
||
|
#if TIMER_COUNTER
|
||
|
{ MP_ROM_QSTR(MP_QSTR_counter), MP_ROM_PTR(&pyb_timer_counter_obj) },
|
||
|
#endif
|
||
|
{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&pyb_timer_freq_obj) },
|
||
|
#if TIMER_PERIOD
|
||
|
{ MP_ROM_QSTR(MP_QSTR_period), MP_ROM_PTR(&pyb_timer_period_obj) },
|
||
|
#endif
|
||
|
{ MP_ROM_QSTR(MP_QSTR_callback), MP_ROM_PTR(&pyb_timer_callback_obj) },
|
||
|
};
|
||
|
STATIC MP_DEFINE_CONST_DICT(pyb_timer_locals_dict, pyb_timer_locals_dict_table);
|
||
|
|
||
|
const mp_obj_type_t pyb_timer_type = {
|
||
|
{ &mp_type_type },
|
||
|
.name = MP_QSTR_Timer,
|
||
|
.print = pyb_timer_print,
|
||
|
.make_new = pyb_timer_make_new,
|
||
|
.locals_dict = (mp_obj_dict_t *)&pyb_timer_locals_dict,
|
||
|
};
|
||
|
|
||
|
#if defined(TIMER_CHANNEL)
|
||
|
/*
|
||
|
* Timer Channel
|
||
|
*/
|
||
|
|
||
|
/// \moduleref pyb
|
||
|
/// \class TimerChannel - setup a channel for a timer.
|
||
|
///
|
||
|
/// Timer channels are used to generate/capture a signal using a timer.
|
||
|
///
|
||
|
/// TimerChannel objects are created using the Timer.channel() method.
|
||
|
STATIC void pyb_timer_channel_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
||
|
pyb_timer_channel_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
||
|
|
||
|
mp_printf(print, "TimerChannel(timer=%u, channel=%u",
|
||
|
self->timer->tim_id,
|
||
|
self->channel);
|
||
|
}
|
||
|
|
||
|
/// \method capture([value])
|
||
|
/// Get or set the capture value associated with a channel.
|
||
|
/// capture, compare, and pulse_width are all aliases for the same function.
|
||
|
/// capture is the logical name to use when the channel is in input capture mode.
|
||
|
|
||
|
/// \method compare([value])
|
||
|
/// Get or set the compare value associated with a channel.
|
||
|
/// capture, compare, and pulse_width are all aliases for the same function.
|
||
|
/// compare is the logical name to use when the channel is in output compare mode.
|
||
|
|
||
|
/// \method pulse_width([value])
|
||
|
/// Get or set the pulse width value associated with a channel.
|
||
|
/// capture, compare, and pulse_width are all aliases for the same function.
|
||
|
/// pulse_width is the logical name to use when the channel is in PWM mode.
|
||
|
///
|
||
|
/// In edge aligned mode, a pulse_width of `period + 1` corresponds to a duty cycle of 100%
|
||
|
/// In center aligned mode, a pulse width of `period` corresponds to a duty cycle of 100%
|
||
|
STATIC mp_obj_t pyb_timer_channel_capture_compare(size_t n_args, const mp_obj_t *args) {
|
||
|
pyb_timer_channel_obj_t *self = MP_OBJ_TO_PTR(args[0]);
|
||
|
if (n_args == 1) {
|
||
|
// get
|
||
|
return mp_const_none;
|
||
|
} else {
|
||
|
// set
|
||
|
// __HAL_TIM_SET_COMPARE(&self->timer->tim, TIMER_CHANNEL(self), mp_obj_get_int(args[1]) & TIMER_CNT_MASK(self->timer));
|
||
|
return mp_const_none;
|
||
|
}
|
||
|
}
|
||
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_channel_capture_compare_obj, 1, 2, pyb_timer_channel_capture_compare);
|
||
|
|
||
|
/// \method callback(fun)
|
||
|
/// Set the function to be called when the timer channel triggers.
|
||
|
/// `fun` is passed 1 argument, the timer object.
|
||
|
/// If `fun` is `None` then the callback will be disabled.
|
||
|
STATIC mp_obj_t pyb_timer_channel_callback(mp_obj_t self_in, mp_obj_t callback) {
|
||
|
pyb_timer_channel_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
||
|
if (callback == mp_const_none) {
|
||
|
// stop interrupt (but not timer)
|
||
|
// _HAL_TIM_DISABLE_IT(&self->timer->tim, TIMER_IRQ_MASK(self->channel));
|
||
|
self->callback = mp_const_none;
|
||
|
} else if (mp_obj_is_callable(callback)) {
|
||
|
self->callback = callback;
|
||
|
uint8_t tim_id = self->timer->tim_id;
|
||
|
// __HAL_TIM_CLEAR_IT(&self->timer->tim, TIMER_IRQ_MASK(self->channel));
|
||
|
if (tim_id == 1) {
|
||
|
// HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
|
||
|
} else {
|
||
|
// HAL_NVIC_EnableIRQ(self->timer->irqn);
|
||
|
}
|
||
|
// start timer, so that it interrupts on overflow
|
||
|
} else {
|
||
|
mp_raise_ValueError(MP_ERROR_TEXT("callback must be None or a callable object"));
|
||
|
}
|
||
|
return mp_const_none;
|
||
|
}
|
||
|
STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_timer_channel_callback_obj, pyb_timer_channel_callback);
|
||
|
|
||
|
STATIC const mp_rom_map_elem_t pyb_timer_channel_locals_dict_table[] = {
|
||
|
// instance methods
|
||
|
{ MP_ROM_QSTR(MP_QSTR_callback), MP_ROM_PTR(&pyb_timer_channel_callback_obj) },
|
||
|
{ MP_ROM_QSTR(MP_QSTR_capture), MP_ROM_PTR(&pyb_timer_channel_capture_compare_obj) },
|
||
|
{ MP_ROM_QSTR(MP_QSTR_compare), MP_ROM_PTR(&pyb_timer_channel_capture_compare_obj) },
|
||
|
};
|
||
|
STATIC MP_DEFINE_CONST_DICT(pyb_timer_channel_locals_dict, pyb_timer_channel_locals_dict_table);
|
||
|
|
||
|
STATIC const mp_obj_type_t pyb_timer_channel_type = {
|
||
|
{ &mp_type_type },
|
||
|
.name = MP_QSTR_TimerChannel,
|
||
|
.print = pyb_timer_channel_print,
|
||
|
.locals_dict = (mp_obj_dict_t *)&pyb_timer_channel_locals_dict,
|
||
|
};
|
||
|
#endif
|
||
|
|
||
|
STATIC void timer_handle_irq_channel(pyb_timer_obj_t *tim, uint8_t channel, mp_obj_t callback) {
|
||
|
|
||
|
// execute callback if it's set
|
||
|
if (callback != mp_const_none) {
|
||
|
mp_sched_lock();
|
||
|
// When executing code within a handler we must lock the GC to prevent
|
||
|
// any memory allocations. We must also catch any exceptions.
|
||
|
gc_lock();
|
||
|
nlr_buf_t nlr;
|
||
|
if (nlr_push(&nlr) == 0) {
|
||
|
mp_call_function_1(callback, MP_OBJ_FROM_PTR(tim));
|
||
|
nlr_pop();
|
||
|
} else {
|
||
|
// Uncaught exception; disable the callback so it doesn't run again.
|
||
|
tim->callback = mp_const_none;
|
||
|
// __HAL_TIM_DISABLE_IT(&tim->tim, irq_mask);
|
||
|
if (channel == 0) {
|
||
|
mp_printf(MICROPY_ERROR_PRINTER, "uncaught exception in Timer(%u) interrupt handler\n", tim->tim_id);
|
||
|
} else {
|
||
|
mp_printf(MICROPY_ERROR_PRINTER, "uncaught exception in Timer(%u) channel %u interrupt handler\n", tim->tim_id, channel);
|
||
|
}
|
||
|
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
|
||
|
}
|
||
|
gc_unlock();
|
||
|
mp_sched_unlock();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void timer_irq_handler(void *param) {
|
||
|
uint tim_id = *(uint *)param;
|
||
|
if ((tim_id != 0) && (tim_id - 1 < PYB_TIMER_OBJ_ALL_NUM)) {
|
||
|
// get the timer object
|
||
|
pyb_timer_obj_t *tim = MP_STATE_PORT(pyb_timer_obj_all)[tim_id - 1];
|
||
|
|
||
|
if (tim == NULL) {
|
||
|
// do nohting
|
||
|
return;
|
||
|
}
|
||
|
timer_handle_irq_channel(tim, 0, tim->callback);
|
||
|
// Check to see if a timer channel interrupt was pending
|
||
|
#if defined(TIMER_CHANNEL)
|
||
|
pyb_timer_channel_obj_t *chan = tim->channel;
|
||
|
while (chan != NULL) {
|
||
|
timer_handle_irq_channel(tim, chan->channel, chan->callback);
|
||
|
// handled |= TIMER_IRQ_MASK(chan->channel);
|
||
|
chan = chan->next;
|
||
|
}
|
||
|
#endif
|
||
|
// ToDo
|
||
|
// Finally, clear any remaining interrupt sources. Otherwise we'll
|
||
|
// just get called continuously.
|
||
|
// uint32_t unhandled = 0;
|
||
|
// if (unhandled != 0) {
|
||
|
// printf("Unhandled interrupt SR=0x%02x (now disabled)\n", (unsigned int)unhandled);
|
||
|
// }
|
||
|
}
|
||
|
}
|