DRESULT sflash_disk_read(BYTE *buff, DWORD sector, UINT count) { uint32_t secindex; if (!sflash_init_done) { return STA_NOINIT; } if ((sector + count > SFLASH_SECTOR_COUNT) || (count == 0)) { return RES_PARERR; } for (int i = 0; i < count; i++) { secindex = (sector + i) % SFLASH_SECTORS_PER_BLOCK; sflash_ublock = (sector + i) / SFLASH_SECTORS_PER_BLOCK; // See if it's time to read a new block if (sflash_prblock != sflash_ublock) { if (sflash_disk_flush() != RES_OK) { return RES_ERROR; } sflash_prblock = sflash_ublock; print_block_name (sflash_ublock); if (!sflash_access(FS_MODE_OPEN_READ, sl_FsRead)) { return RES_ERROR; } } // Copy the requested sector from the block cache memcpy (buff, &sflash_block_cache[(secindex * SFLASH_SECTOR_SIZE)], SFLASH_SECTOR_SIZE); buff += SFLASH_SECTOR_SIZE; } return RES_OK; }
DRESULT sflash_disk_write(const BYTE *buff, DWORD sector, UINT count) { uint32_t secindex; int32_t index = 0; if (!sflash_init_done) { return STA_NOINIT; } if ((sector + count > SFLASH_SECTOR_COUNT) || (count == 0)) { sflash_disk_flush(); return RES_PARERR; } do { secindex = (sector + index) % SFLASH_SECTORS_PER_BLOCK; sflash_ublock = (sector + index) / SFLASH_SECTORS_PER_BLOCK; // Check if it's a different block than last time if (sflash_prblock != sflash_ublock) { if (sflash_disk_flush() != RES_OK) { return RES_ERROR; } sflash_prblock = sflash_ublock; print_block_name (sflash_ublock); // Read the block into the cache if (!sflash_access(FS_MODE_OPEN_READ, sl_FsRead)) { return RES_ERROR; } } // Copy the input sector to the block cache memcpy (&sflash_block_cache[(secindex * SFLASH_SECTOR_SIZE)], buff, SFLASH_SECTOR_SIZE); buff += SFLASH_SECTOR_SIZE; sflash_cache_is_dirty = true; } while (++index < count); return RES_OK; }
void TASK_Micropython (void *pvParameters) { // initialize the garbage collector with the top of our stack uint32_t sp = gc_helper_get_sp(); gc_collect_init (sp); bool safeboot = false; mptask_pre_init(); #ifndef DEBUG safeboot = PRCMGetSpecialBit(PRCM_SAFE_BOOT_BIT); #endif soft_reset: // GC init gc_init(&_boot, &_eheap); // MicroPython init mp_init(); mp_obj_list_init(mp_sys_path, 0); mp_obj_list_init(mp_sys_argv, 0); mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script) // execute all basic initializations mpexception_init0(); mp_irq_init0(); pyb_sleep_init0(); pin_init0(); mperror_init0(); uart_init0(); timer_init0(); readline_init0(); mod_network_init0(); moduos_init0(); rng_init0(); pybsleep_reset_cause_t rstcause = pyb_sleep_get_reset_cause(); if (rstcause < PYB_SLP_SOFT_RESET) { if (rstcause == PYB_SLP_HIB_RESET) { // when waking up from hibernate we just want // to enable simplelink and leave it as is wlan_first_start(); } else { // only if not comming out of hibernate or a soft reset mptask_enter_ap_mode(); } // enable telnet and ftp servers_start(); } // initialize the serial flash file system mptask_init_sflash_filesystem(); // append the flash paths to the system path 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(machine_config_main) = MP_OBJ_NULL; if (!safeboot) { // run boot.py int ret = pyexec_file("boot.py"); if (ret & PYEXEC_FORCED_EXIT) { goto soft_reset_exit; } if (!ret) { // flash the system led mperror_signal_error(); } } // now we initialise sub-systems that need configuration from boot.py, // or whose initialisation can be safely deferred until after running // boot.py. // at this point everything is fully configured and initialised. if (!safeboot) { // run the main script from the current directory. if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) { const char *main_py; if (MP_STATE_PORT(machine_config_main) == MP_OBJ_NULL) { main_py = "main.py"; } else { main_py = mp_obj_str_get_str(MP_STATE_PORT(machine_config_main)); } int ret = pyexec_file(main_py); if (ret & PYEXEC_FORCED_EXIT) { goto soft_reset_exit; } if (!ret) { // flash the system led mperror_signal_error(); } } } // 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 pyb_sleep_signal_soft_reset(); mp_printf(&mp_plat_print, "PYB: soft reboot\n"); // disable all callbacks to avoid undefined behaviour // when coming out of a soft reset mp_irq_disable_all(); // cancel the RTC alarm which might be running independent of the irq state pyb_rtc_disable_alarm(); // flush the serial flash buffer sflash_disk_flush(); // clean-up the user socket space modusocket_close_all_user_sockets(); // wait for pending transactions to complete mp_hal_delay_ms(20); goto soft_reset; }
void TASK_Micropython (void *pvParameters) { // initialize the garbage collector with the top of our stack uint32_t sp = gc_helper_get_sp(); gc_collect_init (sp); bool safeboot = false; mptask_pre_init(); #ifndef DEBUG safeboot = PRCMGetSpecialBit(PRCM_SAFE_BOOT_BIT); #endif soft_reset: // GC init gc_init(&_boot, &_eheap); // MicroPython init mp_init(); mp_obj_list_init(mp_sys_path, 0); mp_obj_list_init(mp_sys_argv, 0); mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script) // execute all basic initializations mpexception_init0(); mpcallback_init0(); pybsleep_init0(); mperror_init0(); uart_init0(); pin_init0(); timer_init0(); readline_init0(); mod_network_init0(); #if MICROPY_HW_ENABLE_RNG rng_init0(); #endif #ifdef LAUNCHXL // configure the stdio uart pins with the correct alternate functions // param 3 ("mode") is DON'T CARE" for AFs others than GPIO pin_config ((pin_obj_t *)&MICROPY_STDIO_UART_TX_PIN, MICROPY_STDIO_UART_TX_PIN_AF, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA); pin_config ((pin_obj_t *)&MICROPY_STDIO_UART_RX_PIN, MICROPY_STDIO_UART_RX_PIN_AF, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA); // instantiate the stdio uart mp_obj_t args[2] = { mp_obj_new_int(MICROPY_STDIO_UART), mp_obj_new_int(MICROPY_STDIO_UART_BAUD), }; pyb_stdio_uart = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args); // create a callback for the uart, in order to enable the rx interrupts uart_callback_new (pyb_stdio_uart, mp_const_none, MICROPY_STDIO_UART_RX_BUF_SIZE, INT_PRIORITY_LVL_3); #else pyb_stdio_uart = MP_OBJ_NULL; #endif pybsleep_reset_cause_t rstcause = pybsleep_get_reset_cause(); if (rstcause < PYB_SLP_SOFT_RESET) { if (rstcause == PYB_SLP_HIB_RESET) { // when waking up from hibernate we just want // to enable simplelink and leave it as is wlan_first_start(); } else { // only if not comming out of hibernate or a soft reset mptask_enter_ap_mode(); } // enable telnet and ftp servers_start(); } // initialize the serial flash file system mptask_init_sflash_filesystem(); // append the flash paths to the system path 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; if (!safeboot) { // run boot.py int ret = pyexec_file("boot.py"); if (ret & PYEXEC_FORCED_EXIT) { goto soft_reset_exit; } if (!ret) { // flash the system led mperror_signal_error(); } } // now we initialise sub-systems that need configuration from boot.py, // or whose initialisation can be safely deferred until after running // boot.py. // at this point everything is fully configured and initialised. if (!safeboot) { // run the main script from the current directory. if (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)); } int ret = pyexec_file(main_py); if (ret & PYEXEC_FORCED_EXIT) { goto soft_reset_exit; } if (!ret) { // flash the system led mperror_signal_error(); } } } // 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 pybsleep_signal_soft_reset(); mp_printf(&mp_plat_print, "PYB: soft reboot\n"); // disable all peripherals that could trigger a callback pyb_rtc_callback_disable(NULL); timer_disable_all(); uart_disable_all(); // flush the serial flash buffer sflash_disk_flush(); // clean-up the user socket space modusocket_close_all_user_sockets(); #if MICROPY_HW_HAS_SDCARD pybsd_disable(); #endif // wait for pending transactions to complete HAL_Delay(20); goto soft_reset; }
STATIC mp_obj_t os_sync(void) { sflash_disk_flush(); return mp_const_none; }