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Diffstat (limited to 'stmhal/main.c')
| -rw-r--r-- | stmhal/main.c | 699 |
1 files changed, 0 insertions, 699 deletions
diff --git a/stmhal/main.c b/stmhal/main.c deleted file mode 100644 index 16279d073..000000000 --- a/stmhal/main.c +++ /dev/null @@ -1,699 +0,0 @@ -/* - * This file is part of the MicroPython project, http://micropython.org/ - * - * The MIT License (MIT) - * - * Copyright (c) 2013, 2014 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 <stdio.h> -#include <string.h> - -#include "py/runtime.h" -#include "py/stackctrl.h" -#include "py/gc.h" -#include "py/mphal.h" -#include "lib/mp-readline/readline.h" -#include "lib/utils/pyexec.h" -#include "lib/oofatfs/ff.h" -#include "extmod/vfs.h" -#include "extmod/vfs_fat.h" - -#include "systick.h" -#include "pendsv.h" -#include "pybthread.h" -#include "gccollect.h" -#include "modmachine.h" -#include "i2c.h" -#include "spi.h" -#include "uart.h" -#include "timer.h" -#include "led.h" -#include "pin.h" -#include "extint.h" -#include "usrsw.h" -#include "usb.h" -#include "rtc.h" -#include "storage.h" -#include "sdcard.h" -#include "rng.h" -#include "accel.h" -#include "servo.h" -#include "dac.h" -#include "can.h" -#include "modnetwork.h" - -void SystemClock_Config(void); - -pyb_thread_t pyb_thread_main; -fs_user_mount_t fs_user_mount_flash; - -void flash_error(int n) { - for (int i = 0; i < n; i++) { - led_state(PYB_LED_RED, 1); - led_state(PYB_LED_GREEN, 0); - mp_hal_delay_ms(250); - led_state(PYB_LED_RED, 0); - led_state(PYB_LED_GREEN, 1); - mp_hal_delay_ms(250); - } - led_state(PYB_LED_GREEN, 0); -} - -void NORETURN __fatal_error(const char *msg) { - for (volatile uint delay = 0; delay < 10000000; delay++) { - } - led_state(1, 1); - led_state(2, 1); - led_state(3, 1); - led_state(4, 1); - mp_hal_stdout_tx_strn("\nFATAL ERROR:\n", 14); - mp_hal_stdout_tx_strn(msg, strlen(msg)); - for (uint i = 0;;) { - led_toggle(((i++) & 3) + 1); - for (volatile uint delay = 0; delay < 10000000; delay++) { - } - if (i >= 16) { - // to conserve power - __WFI(); - } - } -} - -void nlr_jump_fail(void *val) { - printf("FATAL: uncaught exception %p\n", val); - mp_obj_print_exception(&mp_plat_print, (mp_obj_t)val); - __fatal_error(""); -} - -#ifndef NDEBUG -void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) { - (void)func; - printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line); - __fatal_error(""); -} -#endif - -STATIC mp_obj_t pyb_main(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { - static const mp_arg_t allowed_args[] = { - { MP_QSTR_opt, MP_ARG_INT, {.u_int = 0} } - }; - - if (MP_OBJ_IS_STR(pos_args[0])) { - MP_STATE_PORT(pyb_config_main) = pos_args[0]; - - // parse args - mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; - mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); - MP_STATE_VM(mp_optimise_value) = args[0].u_int; - } - return mp_const_none; -} -MP_DEFINE_CONST_FUN_OBJ_KW(pyb_main_obj, 1, pyb_main); - -static const char fresh_boot_py[] = -"# boot.py -- run on boot-up\r\n" -"# can run arbitrary Python, but best to keep it minimal\r\n" -"\r\n" -"import machine\r\n" -"import pyb\r\n" -"#pyb.main('main.py') # main script to run after this one\r\n" -"#pyb.usb_mode('VCP+MSC') # act as a serial and a storage device\r\n" -"#pyb.usb_mode('VCP+HID') # act as a serial device and a mouse\r\n" -; - -static const char fresh_main_py[] = -"# main.py -- put your code here!\r\n" -; - -static const char fresh_pybcdc_inf[] = -#include "genhdr/pybcdc_inf.h" -; - -static const char fresh_readme_txt[] = -"This is a MicroPython board\r\n" -"\r\n" -"You can get started right away by writing your Python code in 'main.py'.\r\n" -"\r\n" -"For a serial prompt:\r\n" -" - Windows: you need to go to 'Device manager', right click on the unknown device,\r\n" -" then update the driver software, using the 'pybcdc.inf' file found on this drive.\r\n" -" Then use a terminal program like Hyperterminal or putty.\r\n" -" - Mac OS X: use the command: screen /dev/tty.usbmodem*\r\n" -" - Linux: use the command: screen /dev/ttyACM0\r\n" -"\r\n" -"Please visit http://micropython.org/help/ for further help.\r\n" -; - -// avoid inlining to avoid stack usage within main() -MP_NOINLINE STATIC bool init_flash_fs(uint reset_mode) { - // init the vfs object - fs_user_mount_t *vfs_fat = &fs_user_mount_flash; - vfs_fat->flags = 0; - pyb_flash_init_vfs(vfs_fat); - - // try to mount the flash - FRESULT res = f_mount(&vfs_fat->fatfs); - - if (reset_mode == 3 || res == FR_NO_FILESYSTEM) { - // no filesystem, or asked to reset it, so create a fresh one - - // LED on to indicate creation of LFS - led_state(PYB_LED_GREEN, 1); - uint32_t start_tick = HAL_GetTick(); - - uint8_t working_buf[_MAX_SS]; - res = f_mkfs(&vfs_fat->fatfs, FM_FAT, 0, working_buf, sizeof(working_buf)); - if (res == FR_OK) { - // success creating fresh LFS - } else { - printf("PYB: can't create flash filesystem\n"); - return false; - } - - // set label - f_setlabel(&vfs_fat->fatfs, "pybflash"); - - // create empty main.py - FIL fp; - f_open(&vfs_fat->fatfs, &fp, "/main.py", FA_WRITE | FA_CREATE_ALWAYS); - UINT n; - f_write(&fp, fresh_main_py, sizeof(fresh_main_py) - 1 /* don't count null terminator */, &n); - // TODO check we could write n bytes - f_close(&fp); - - // create .inf driver file - f_open(&vfs_fat->fatfs, &fp, "/pybcdc.inf", FA_WRITE | FA_CREATE_ALWAYS); - f_write(&fp, fresh_pybcdc_inf, sizeof(fresh_pybcdc_inf) - 1 /* don't count null terminator */, &n); - f_close(&fp); - - // create readme file - f_open(&vfs_fat->fatfs, &fp, "/README.txt", FA_WRITE | FA_CREATE_ALWAYS); - f_write(&fp, fresh_readme_txt, sizeof(fresh_readme_txt) - 1 /* don't count null terminator */, &n); - f_close(&fp); - - // keep LED on for at least 200ms - sys_tick_wait_at_least(start_tick, 200); - led_state(PYB_LED_GREEN, 0); - } else if (res == FR_OK) { - // mount sucessful - } else { - fail: - printf("PYB: can't mount flash\n"); - return false; - } - - // mount the flash device (there should be no other devices mounted at this point) - // we allocate this structure on the heap because vfs->next is a root pointer - mp_vfs_mount_t *vfs = m_new_obj_maybe(mp_vfs_mount_t); - if (vfs == NULL) { - goto fail; - } - vfs->str = "/flash"; - vfs->len = 6; - vfs->obj = MP_OBJ_FROM_PTR(vfs_fat); - vfs->next = NULL; - MP_STATE_VM(vfs_mount_table) = vfs; - - // The current directory is used as the boot up directory. - // It is set to the internal flash filesystem by default. - MP_STATE_PORT(vfs_cur) = vfs; - - // Make sure we have a /flash/boot.py. Create it if needed. - FILINFO fno; - res = f_stat(&vfs_fat->fatfs, "/boot.py", &fno); - if (res != FR_OK) { - // doesn't exist, create fresh file - - // LED on to indicate creation of boot.py - led_state(PYB_LED_GREEN, 1); - uint32_t start_tick = HAL_GetTick(); - - FIL fp; - f_open(&vfs_fat->fatfs, &fp, "/boot.py", FA_WRITE | FA_CREATE_ALWAYS); - UINT n; - f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py) - 1 /* don't count null terminator */, &n); - // TODO check we could write n bytes - f_close(&fp); - - // keep LED on for at least 200ms - sys_tick_wait_at_least(start_tick, 200); - led_state(PYB_LED_GREEN, 0); - } - - return true; -} - -#if MICROPY_HW_HAS_SDCARD -STATIC bool init_sdcard_fs(bool first_soft_reset) { - bool first_part = true; - for (int part_num = 1; part_num <= 4; ++part_num) { - // create vfs object - fs_user_mount_t *vfs_fat = m_new_obj_maybe(fs_user_mount_t); - mp_vfs_mount_t *vfs = m_new_obj_maybe(mp_vfs_mount_t); - if (vfs == NULL || vfs_fat == NULL) { - break; - } - vfs_fat->flags = FSUSER_FREE_OBJ; - sdcard_init_vfs(vfs_fat, part_num); - - // try to mount the partition - FRESULT res = f_mount(&vfs_fat->fatfs); - - if (res != FR_OK) { - // couldn't mount - m_del_obj(fs_user_mount_t, vfs_fat); - m_del_obj(mp_vfs_mount_t, vfs); - } else { - // mounted via FatFs, now mount the SD partition in the VFS - if (first_part) { - // the first available partition is traditionally called "sd" for simplicity - vfs->str = "/sd"; - vfs->len = 3; - } else { - // subsequent partitions are numbered by their index in the partition table - if (part_num == 2) { - vfs->str = "/sd2"; - } else if (part_num == 2) { - vfs->str = "/sd3"; - } else { - vfs->str = "/sd4"; - } - vfs->len = 4; - } - vfs->obj = MP_OBJ_FROM_PTR(vfs_fat); - vfs->next = NULL; - for (mp_vfs_mount_t **m = &MP_STATE_VM(vfs_mount_table);; m = &(*m)->next) { - if (*m == NULL) { - *m = vfs; - break; - } - } - - if (first_soft_reset) { - // use SD card as medium for the USB MSD - #if defined(USE_DEVICE_MODE) - pyb_usb_storage_medium = PYB_USB_STORAGE_MEDIUM_SDCARD; - #endif - } - - #if defined(USE_DEVICE_MODE) - // only use SD card as current directory if that's what the USB medium is - if (pyb_usb_storage_medium == PYB_USB_STORAGE_MEDIUM_SDCARD) - #endif - { - if (first_part) { - // use SD card as current directory - MP_STATE_PORT(vfs_cur) = vfs; - } - } - first_part = false; - } - } - - if (first_part) { - printf("PYB: can't mount SD card\n"); - return false; - } else { - return true; - } -} -#endif - -STATIC uint update_reset_mode(uint reset_mode) { -#if MICROPY_HW_HAS_SWITCH - if (switch_get()) { - - // The original method used on the pyboard is appropriate if you have 2 - // or more LEDs. -#if defined(MICROPY_HW_LED2) - for (uint i = 0; i < 3000; i++) { - if (!switch_get()) { - break; - } - mp_hal_delay_ms(20); - if (i % 30 == 29) { - if (++reset_mode > 3) { - reset_mode = 1; - } - led_state(2, reset_mode & 1); - led_state(3, reset_mode & 2); - led_state(4, reset_mode & 4); - } - } - // flash the selected reset mode - for (uint i = 0; i < 6; i++) { - led_state(2, 0); - led_state(3, 0); - led_state(4, 0); - mp_hal_delay_ms(50); - led_state(2, reset_mode & 1); - led_state(3, reset_mode & 2); - led_state(4, reset_mode & 4); - mp_hal_delay_ms(50); - } - mp_hal_delay_ms(400); - -#elif defined(MICROPY_HW_LED1) - - // For boards with only a single LED, we'll flash that LED the - // appropriate number of times, with a pause between each one - for (uint i = 0; i < 10; i++) { - led_state(1, 0); - for (uint j = 0; j < reset_mode; j++) { - if (!switch_get()) { - break; - } - led_state(1, 1); - mp_hal_delay_ms(100); - led_state(1, 0); - mp_hal_delay_ms(200); - } - mp_hal_delay_ms(400); - if (!switch_get()) { - break; - } - if (++reset_mode > 3) { - reset_mode = 1; - } - } - // Flash the selected reset mode - for (uint i = 0; i < 2; i++) { - for (uint j = 0; j < reset_mode; j++) { - led_state(1, 1); - mp_hal_delay_ms(100); - led_state(1, 0); - mp_hal_delay_ms(200); - } - mp_hal_delay_ms(400); - } -#else -#error Need a reset mode update method -#endif - } -#endif - return reset_mode; -} - -int main(void) { - // TODO disable JTAG - - /* STM32F4xx HAL library initialization: - - Configure the Flash prefetch, instruction and Data caches - - Configure the Systick to generate an interrupt each 1 msec - - Set NVIC Group Priority to 4 - - Global MSP (MCU Support Package) initialization - */ - HAL_Init(); - - // set the system clock to be HSE - SystemClock_Config(); - - // enable GPIO clocks - __GPIOA_CLK_ENABLE(); - __GPIOB_CLK_ENABLE(); - __GPIOC_CLK_ENABLE(); - __GPIOD_CLK_ENABLE(); - - #if defined(MCU_SERIES_F4) || defined(MCU_SERIES_F7) - #if defined(__HAL_RCC_DTCMRAMEN_CLK_ENABLE) - // The STM32F746 doesn't really have CCM memory, but it does have DTCM, - // which behaves more or less like normal SRAM. - __HAL_RCC_DTCMRAMEN_CLK_ENABLE(); - #elif defined(CCMDATARAM_BASE) - // enable the CCM RAM - __HAL_RCC_CCMDATARAMEN_CLK_ENABLE(); - #endif - #endif - - #if defined(MICROPY_BOARD_EARLY_INIT) - MICROPY_BOARD_EARLY_INIT(); - #endif - - // basic sub-system init - #if MICROPY_PY_THREAD - pyb_thread_init(&pyb_thread_main); - #endif - pendsv_init(); - led_init(); -#if MICROPY_HW_HAS_SWITCH - switch_init0(); -#endif - -#if defined(USE_DEVICE_MODE) - // default to internal flash being the usb medium - pyb_usb_storage_medium = PYB_USB_STORAGE_MEDIUM_FLASH; -#endif - - int first_soft_reset = true; - -soft_reset: - - // check if user switch held to select the reset mode -#if defined(MICROPY_HW_LED2) - led_state(1, 0); - led_state(2, 1); -#else - led_state(1, 1); - led_state(2, 0); -#endif - led_state(3, 0); - led_state(4, 0); - uint reset_mode = update_reset_mode(1); - - machine_init(); - -#if MICROPY_HW_ENABLE_RTC - if (first_soft_reset) { - rtc_init_start(false); - } -#endif - - // more sub-system init -#if MICROPY_HW_HAS_SDCARD - if (first_soft_reset) { - sdcard_init(); - } -#endif - if (first_soft_reset) { - storage_init(); - } - - // Python threading init - #if MICROPY_PY_THREAD - mp_thread_init(); - #endif - - // Stack limit should be less than real stack size, so we have a chance - // to recover from limit hit. (Limit is measured in bytes.) - // Note: stack control relies on main thread being initialised above - mp_stack_set_top(&_estack); - mp_stack_set_limit((char*)&_estack - (char*)&_heap_end - 1024); - - // GC init - gc_init(&_heap_start, &_heap_end); - - // MicroPython init - mp_init(); - mp_obj_list_init(mp_sys_path, 0); - mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script) - mp_obj_list_init(mp_sys_argv, 0); - - // Initialise low-level sub-systems. Here we need to very basic things like - // zeroing out memory and resetting any of the sub-systems. Following this - // we can run Python scripts (eg boot.py), but anything that is configurable - // by boot.py must be set after boot.py is run. - - readline_init0(); - pin_init0(); - extint_init0(); - timer_init0(); - uart_init0(); - - // Define MICROPY_HW_UART_REPL to be PYB_UART_6 and define - // MICROPY_HW_UART_REPL_BAUD in your mpconfigboard.h file if you want a - // REPL on a hardware UART as well as on USB VCP -#if defined(MICROPY_HW_UART_REPL) - { - mp_obj_t args[2] = { - MP_OBJ_NEW_SMALL_INT(MICROPY_HW_UART_REPL), - MP_OBJ_NEW_SMALL_INT(MICROPY_HW_UART_REPL_BAUD), - }; - MP_STATE_PORT(pyb_stdio_uart) = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args); - } -#else - MP_STATE_PORT(pyb_stdio_uart) = NULL; -#endif - -#if MICROPY_HW_ENABLE_CAN - can_init0(); -#endif - -#if MICROPY_HW_ENABLE_RNG - rng_init0(); -#endif - - i2c_init0(); - spi_init0(); - pyb_usb_init0(); - - // Initialise the local flash filesystem. - // Create it if needed, mount in on /flash, and set it as current dir. - bool mounted_flash = init_flash_fs(reset_mode); - - bool mounted_sdcard = false; -#if MICROPY_HW_HAS_SDCARD - // if an SD card is present then mount it on /sd/ - if (sdcard_is_present()) { - // if there is a file in the flash called "SKIPSD", then we don't mount the SD card - if (!mounted_flash || f_stat(&fs_user_mount_flash.fatfs, "/SKIPSD", NULL) != FR_OK) { - mounted_sdcard = init_sdcard_fs(first_soft_reset); - } - } -#endif - - // set sys.path based on mounted filesystems (/sd is first so it can override /flash) - if (mounted_sdcard) { - mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd)); - mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd_slash_lib)); - } - if (mounted_flash) { - mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash)); - mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_flash_slash_lib)); - } - - // reset config variables; they should be set by boot.py - MP_STATE_PORT(pyb_config_main) = MP_OBJ_NULL; - - // run boot.py, if it exists - // TODO perhaps have pyb.reboot([bootpy]) function to soft-reboot and execute custom boot.py - if (reset_mode == 1 || reset_mode == 3) { - const char *boot_py = "boot.py"; - mp_import_stat_t stat = mp_import_stat(boot_py); - if (stat == MP_IMPORT_STAT_FILE) { - int ret = pyexec_file(boot_py); - if (ret & PYEXEC_FORCED_EXIT) { - goto soft_reset_exit; - } - if (!ret) { - flash_error(4); - } - } - } - - // turn boot-up LEDs off -#if !defined(MICROPY_HW_LED2) - // If there is only one LED on the board then it's used to signal boot-up - // and so we turn it off here. Otherwise LED(1) is used to indicate dirty - // flash cache and so we shouldn't change its state. - led_state(1, 0); -#endif - led_state(2, 0); - led_state(3, 0); - led_state(4, 0); - - // Now we initialise sub-systems that need configuration from boot.py, - // or whose initialisation can be safely deferred until after running - // boot.py. - -#if defined(USE_DEVICE_MODE) - // init USB device to default setting if it was not already configured - if (!(pyb_usb_flags & PYB_USB_FLAG_USB_MODE_CALLED)) { - pyb_usb_dev_init(USBD_VID, USBD_PID_CDC_MSC, USBD_MODE_CDC_MSC, NULL); - } -#endif - -#if MICROPY_HW_HAS_MMA7660 - // MMA accel: init and reset - accel_init(); -#endif - -#if MICROPY_HW_ENABLE_SERVO - // servo - servo_init(); -#endif - -#if MICROPY_HW_ENABLE_DAC - // DAC - dac_init(); -#endif - -#if MICROPY_PY_NETWORK - mod_network_init(); -#endif - - // At this point everything is fully configured and initialised. - - // Run the main script from the current directory. - if ((reset_mode == 1 || reset_mode == 3) && pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) { - const char *main_py; - if (MP_STATE_PORT(pyb_config_main) == MP_OBJ_NULL) { - main_py = "main.py"; - } else { - main_py = mp_obj_str_get_str(MP_STATE_PORT(pyb_config_main)); - } - mp_import_stat_t stat = mp_import_stat(main_py); - if (stat == MP_IMPORT_STAT_FILE) { - int ret = pyexec_file(main_py); - if (ret & PYEXEC_FORCED_EXIT) { - goto soft_reset_exit; - } - if (!ret) { - flash_error(3); - } - } - } - - // Main script is finished, so now go into REPL mode. - // The REPL mode can change, or it can request a soft reset. - for (;;) { - if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) { - if (pyexec_raw_repl() != 0) { - break; - } - } else { - if (pyexec_friendly_repl() != 0) { - break; - } - } - } - -soft_reset_exit: - - // soft reset - - printf("PYB: sync filesystems\n"); - storage_flush(); - - printf("PYB: soft reboot\n"); - timer_deinit(); - uart_deinit(); -#if MICROPY_HW_ENABLE_CAN - can_deinit(); -#endif - - #if MICROPY_PY_THREAD - pyb_thread_deinit(); - #endif - - first_soft_reset = false; - goto soft_reset; -} |