86ce442607
Frozen modules will be searched preferentially, but gives the user the ability to override this behavior. This matches the previous behavior where "" was implicitly the frozen search path, but the frozen list was checked before the filesystem. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
198 lines
7.0 KiB
C
198 lines
7.0 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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* Copyright (c) 2020 Jim Mussared
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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 "py/compile.h"
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#include "py/runtime.h"
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#include "py/gc.h"
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#include "py/mperrno.h"
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#include "py/stackctrl.h"
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#include "shared/readline/readline.h"
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#include "shared/runtime/gchelper.h"
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#include "shared/runtime/pyexec.h"
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#include "ticks.h"
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#include "tusb.h"
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#include "led.h"
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#include "pendsv.h"
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#include "modmachine.h"
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#if MICROPY_PY_LWIP
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#include "lwip/init.h"
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#include "lwip/apps/mdns.h"
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#endif
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#include "systick.h"
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#include "extmod/modnetwork.h"
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extern uint8_t _sstack, _estack, _gc_heap_start, _gc_heap_end;
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void board_init(void);
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int main(void) {
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board_init();
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ticks_init();
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tusb_init();
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led_init();
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pendsv_init();
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mp_stack_set_top(&_estack);
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mp_stack_set_limit(&_estack - &_sstack - 1024);
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#if MICROPY_PY_LWIP
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// lwIP doesn't allow to reinitialise itself by subsequent calls to this function
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// because the system timeout list (next_timeout) is only ever reset by BSS clearing.
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// So for now we only init the lwIP stack once on power-up.
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lwip_init();
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#if LWIP_MDNS_RESPONDER
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mdns_resp_init();
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#endif
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systick_enable_dispatch(SYSTICK_DISPATCH_LWIP, mod_network_lwip_poll_wrapper);
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#endif
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for (;;) {
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gc_init(&_gc_heap_start, &_gc_heap_end);
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mp_init();
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mp_obj_list_init(MP_OBJ_TO_PTR(mp_sys_path), 0);
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#if MICROPY_MODULE_FROZEN
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__dot_frozen));
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#endif
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_));
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mp_obj_list_init(MP_OBJ_TO_PTR(mp_sys_argv), 0);
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#if MICROPY_PY_NETWORK
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mod_network_init();
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#endif
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// Initialise sub-systems.
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readline_init0();
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// Execute _boot.py to set up the filesystem.
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pyexec_frozen_module("_boot.py");
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// Execute user scripts.
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int ret = pyexec_file_if_exists("boot.py");
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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// Do not execute main.py if boot.py failed
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if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL && ret != 0) {
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ret = pyexec_file_if_exists("main.py");
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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}
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for (;;) {
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if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
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if (pyexec_raw_repl() != 0) {
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break;
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}
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} else {
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if (pyexec_friendly_repl() != 0) {
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break;
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}
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}
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}
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soft_reset_exit:
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mp_printf(MP_PYTHON_PRINTER, "MPY: soft reboot\n");
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machine_pin_irq_deinit();
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#if MICROPY_PY_NETWORK
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mod_network_deinit();
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#endif
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machine_pwm_deinit_all();
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gc_sweep_all();
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mp_deinit();
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}
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return 0;
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}
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void gc_collect(void) {
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gc_collect_start();
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gc_helper_collect_regs_and_stack();
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gc_collect_end();
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}
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void nlr_jump_fail(void *val) {
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for (;;) {
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}
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}
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#ifndef NDEBUG
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void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
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mp_printf(MP_PYTHON_PRINTER, "Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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for (;;) {
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}
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}
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#endif
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const char mimxrt_help_text[] =
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"Welcome to MicroPython!\n"
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"\n"
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"For online help please visit https://micropython.org/help/.\n"
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"\n"
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"For access to the hardware use the 'machine' module. \n"
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"\n"
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"Quick overview of some objects:\n"
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" machine.Pin(pin) -- get a pin, eg machine.Pin(0)\n"
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" machine.Pin(pin, m, [p]) -- get a pin and configure it for IO mode m, pull mode p\n"
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" methods: init(..), value([v]), high(), low())\n"
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"\n"
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" Pins are numbered board specific, either 0-n, or 'D0'-'Dn', or 'A0' - 'An',\n"
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" according to the boards's pinout sheet.\n"
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" Pin IO modes are: Pin.IN, Pin.OUT, Pin.OPEN_DRAIN\n"
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" Pin pull modes are: Pin.PULL_UP, Pin.PULL_UP_47K, Pin.PULL_UP_22K, Pin.PULL_DOWN, Pin.PULL_HOLD\n"
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" machine.ADC(pin) -- make an analog object from a pin\n"
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" methods: read_u16()\n"
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" machine.UART(id, baudrate=115200) -- create an UART object (id=1 - 8, board-specific)\n"
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" methods: init(), write(buf), any()\n"
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" buf=read(n), readinto(buf), buf=readline()\n"
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" The RX and TX pins are fixed and board-specific.\n"
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" machine.SoftI2C() -- create a Soft I2C object\n"
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" machine.I2C(id) -- create a HW I2C object\n"
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" methods: readfrom(addr, buf, stop=True), writeto(addr, buf, stop=True)\n"
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" readfrom_mem(addr, memaddr, arg), writeto_mem(addr, memaddr, arg)\n"
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" SoftI2C allows to use any pin for sda and scl, HW I2C id's and pins are fixed\n"
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" machine.SoftSPI(baudrate=1000000) -- create a Soft SPI object\n"
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" machine.SPI(id, baudrate=1000000) -- create a HW SPI object\n"
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" methods: read(nbytes, write=0x00), write(buf), write_readinto(wr_buf, rd_buf)\n"
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" SoftSPI allows to use any pin for SPI, HW SPI id's and pins are fixed\n"
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" machine.Timer(id, freq, callback) -- create a hardware timer object (id=0,1,2)\n"
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" eg: machine.Timer(freq=1, callback=lambda t:print(t))\n"
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" machine.RTC() -- create a Real Time Clock object\n"
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" methods: init(), datetime([dateime_tuple]), now()\n"
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" machine.PWM(pin, freq, duty_u16[, kw_opts]) -- create a PWM object\n"
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" methods: init(), duty_u16([value]), duty_ns([value]), freq([value])\n"
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"\n"
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"Useful control commands:\n"
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" CTRL-C -- interrupt a running program\n"
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" CTRL-D -- on a blank line, do a soft reset of the board\n"
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" CTRL-E -- on a blank line, enter paste mode\n"
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"\n"
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"For further help on a specific object, type help(obj)\n"
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"For a list of available modules, type help('modules')\n"
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;
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