1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <p33Fxxxx.h>
#include "py/compile.h"
#include "py/runtime.h"
#include "py/gc.h"
#include "py/mphal.h"
#include "py/mperrno.h"
#include "lib/utils/pyexec.h"
#include "lib/mp-readline/readline.h"
#include "board.h"
#include "modpyb.h"
#pragma config GWRP = OFF
#pragma config GSS = GCP_OFF
#pragma config FNOSC = FRC
#pragma config FCKSM = CSECMD
#pragma config OSCIOFNC = ON
#pragma config POSCMD = NONE
#pragma config FWDTEN = OFF
// maximum heap for device with 8k RAM
static char heap[4600];
int main(int argc, char **argv) {
// init the CPU and the peripherals
cpu_init();
led_init();
switch_init();
uart_init();
soft_reset:
// flash green led for 150ms to indicate boot
led_state(1, 0);
led_state(2, 0);
led_state(3, 1);
mp_hal_delay_ms(150);
led_state(3, 0);
// init MicroPython runtime
int stack_dummy;
MP_STATE_THREAD(stack_top) = (char *)&stack_dummy;
gc_init(heap, heap + sizeof(heap));
mp_init();
mp_hal_init();
readline_init0();
// REPL loop
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
if (pyexec_raw_repl() != 0) {
break;
}
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
printf("MPY: soft reboot\n");
mp_deinit();
goto soft_reset;
}
void gc_collect(void) {
// TODO possibly need to trace registers
void *dummy;
gc_collect_start();
// Node: stack is ascending
gc_collect_root(&dummy, ((mp_uint_t)&dummy - (mp_uint_t)MP_STATE_THREAD(stack_top)) / sizeof(mp_uint_t));
gc_collect_end();
}
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
mp_raise_OSError(MP_ENOENT);
}
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
void nlr_jump_fail(void *val) {
while (1) {
;
}
}
void NORETURN __fatal_error(const char *msg) {
while (1) {
;
}
}
#ifndef NDEBUG
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
__fatal_error("Assertion failed");
}
#endif
|
