mirror of
https://github.com/licsber/micropython.git
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43ea73faa6
Reference MCU is dsPIC33J256GP506 with 256k ROM and 8k RAM, on the dsPIC DSC Starter Kit board. The REPL works, GC works, pyb module has LED and Switch objects. It passes some tests from the test suite (most it can't run because it doesn't have the Python features enabled).
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/*
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* This file is part of the Micro Python 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) 2015 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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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <p33Fxxxx.h>
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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 "pyexec.h"
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#include "readline.h"
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#include MICROPY_HAL_H
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#include "board.h"
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#include "modpyb.h"
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_FGS(GWRP_OFF & GCP_OFF);
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_FOSCSEL(FNOSC_FRC);
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_FOSC(FCKSM_CSECMD & OSCIOFNC_ON & POSCMD_NONE);
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_FWDT(FWDTEN_OFF);
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// maximum heap for device with 8k RAM
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static char heap[4600];
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int main(int argc, char **argv) {
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// init the CPU and the peripherals
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cpu_init();
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led_init();
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switch_init();
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uart_init();
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soft_reset:
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// flash green led for 150ms to indicate boot
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led_state(1, 0);
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led_state(2, 0);
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led_state(3, 1);
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mp_hal_milli_delay(150);
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led_state(3, 0);
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// init MicroPython runtime
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int stack_dummy;
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MP_STATE_VM(stack_top) = (char*)&stack_dummy;
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gc_init(heap, heap + sizeof(heap));
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mp_init();
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mp_hal_init();
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readline_init0();
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// REPL loop
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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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printf("PYB: soft reboot\n");
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mp_deinit();
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goto soft_reset;
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}
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void gc_collect(void) {
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// TODO possibly need to trace registers
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void *dummy;
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gc_collect_start();
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// Node: stack is ascending
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gc_collect_root(&dummy, ((mp_uint_t)&dummy - (mp_uint_t)MP_STATE_VM(stack_top)) / sizeof(mp_uint_t));
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gc_collect_end();
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}
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mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
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return NULL;
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}
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mp_import_stat_t mp_import_stat(const char *path) {
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return MP_IMPORT_STAT_NO_EXIST;
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}
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mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
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void nlr_jump_fail(void *val) {
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}
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void NORETURN __fatal_error(const char *msg) {
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while (1);
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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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printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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__fatal_error("Assertion failed");
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}
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#endif
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