250 lines
6.4 KiB
C
250 lines
6.4 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) 2013, 2014 Damien P. George
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* Copyright (c) 2015 Glenn Ruben Bakke
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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 "py/nlr.h"
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#include "py/lexer.h"
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#include "py/parse.h"
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "py/stackctrl.h"
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#include "py/gc.h"
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#include "py/compile.h"
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#include "lib/utils/pyexec.h"
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#include "readline.h"
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#include "gccollect.h"
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#include "modmachine.h"
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#include "modmusic.h"
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#include "led.h"
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#include "uart.h"
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#include "nrf.h"
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#include "pin.h"
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#include "spi.h"
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#include "i2c.h"
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#include "rtc.h"
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#if MICROPY_PY_MACHINE_HW_PWM
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#include "pwm.h"
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#endif
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#include "timer.h"
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#if (MICROPY_PY_BLE_NUS)
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#include "ble_uart.h"
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#endif
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void do_str(const char *src, mp_parse_input_kind_t input_kind) {
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mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
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if (lex == NULL) {
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printf("MemoryError: lexer could not allocate memory\n");
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return;
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}
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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qstr source_name = lex->source_name;
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mp_parse_tree_t pn = mp_parse(lex, input_kind);
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mp_obj_t module_fun = mp_compile(&pn, source_name, MP_EMIT_OPT_NONE, true);
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mp_call_function_0(module_fun);
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nlr_pop();
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} else {
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// uncaught exception
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mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
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}
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}
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extern uint32_t _heap_start;
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extern uint32_t _heap_end;
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int main(int argc, char **argv) {
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soft_reset:
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mp_stack_set_top(&_ram_end);
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// Stack limit should be less than real stack size, so we have a chance
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// to recover from limit hit. (Limit is measured in bytes.)
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mp_stack_set_limit((char*)&_ram_end - (char*)&_heap_end - 400);
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machine_init();
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gc_init(&_heap_start, &_heap_end);
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mp_init();
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mp_obj_list_init(mp_sys_path, 0);
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
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mp_obj_list_init(mp_sys_argv, 0);
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pyb_set_repl_info(MP_OBJ_NEW_SMALL_INT(0));
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readline_init0();
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#if MICROPY_PY_MACHINE_HW_SPI
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spi_init0();
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#endif
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#if MICROPY_PY_MACHINE_I2C
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i2c_init0();
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#endif
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#if MICROPY_PY_MACHINE_HW_PWM
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pwm_init0();
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#endif
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#if MICROPY_PY_MACHINE_RTC
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rtc_init0();
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#endif
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#if MICROPY_PY_MACHINE_TIMER
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timer_init0();
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#endif
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uart_init0();
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#if (MICROPY_PY_BLE_NUS == 0)
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{
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mp_obj_t args[2] = {
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MP_OBJ_NEW_SMALL_INT(0),
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MP_OBJ_NEW_SMALL_INT(115200),
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};
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MP_STATE_PORT(pyb_stdio_uart) = machine_hard_uart_type.make_new((mp_obj_t)&machine_hard_uart_type, MP_ARRAY_SIZE(args), 0, args);
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}
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#endif
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pin_init0();
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#if MICROPY_HW_HAS_SDCARD
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// if an SD card is present then mount it on /sd/
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if (sdcard_is_present()) {
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// create vfs object
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fs_user_mount_t *vfs = m_new_obj_maybe(fs_user_mount_t);
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if (vfs == NULL) {
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goto no_mem_for_sd;
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}
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vfs->str = "/sd";
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vfs->len = 3;
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vfs->flags = FSUSER_FREE_OBJ;
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sdcard_init_vfs(vfs);
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// put the sd device in slot 1 (it will be unused at this point)
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MP_STATE_PORT(fs_user_mount)[1] = vfs;
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FRESULT res = f_mount(&vfs->fatfs, vfs->str, 1);
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if (res != FR_OK) {
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printf("PYB: can't mount SD card\n");
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MP_STATE_PORT(fs_user_mount)[1] = NULL;
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m_del_obj(fs_user_mount_t, vfs);
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} else {
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// TODO these should go before the /flash entries in the path
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd));
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mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd_slash_lib));
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// use SD card as current directory
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f_chdrive("/sd");
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}
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no_mem_for_sd:;
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}
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#endif
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#if (MICROPY_HW_HAS_LED)
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led_init();
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do_str("import pyb\r\n" \
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"pyb.LED(1).on()",
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MP_PARSE_FILE_INPUT);
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#endif
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// Main script is finished, so now go into REPL mode.
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// The REPL mode can change, or it can request a soft reset.
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int ret_code = 0;
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#if MICROPY_PY_BLE_NUS
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ble_uart_init0();
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while (!ble_uart_enabled()) {
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;
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}
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#endif
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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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ret_code = pyexec_friendly_repl();
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if (ret_code != 0) {
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break;
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}
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}
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}
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mp_deinit();
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if (ret_code == PYEXEC_FORCED_EXIT) {
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NVIC_SystemReset();
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} else {
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goto soft_reset;
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}
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return 0;
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}
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void HardFault_Handler(void)
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{
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#if NRF52
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static volatile uint32_t reg;
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static volatile uint32_t reg2;
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static volatile uint32_t bfar;
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reg = SCB->HFSR;
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reg2 = SCB->CFSR;
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bfar = SCB->BFAR;
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for (int i = 0; i < 0; i++)
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{
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(void)reg;
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(void)reg2;
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(void)bfar;
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}
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#endif
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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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void nlr_jump_fail(void *val) {
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printf("FATAL: uncaught exception %p\n", val);
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mp_obj_print_exception(&mp_plat_print, (mp_obj_t)val);
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__fatal_error("");
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}
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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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void _start(void) {main(0, NULL);}
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