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Description
On an espressif esp32 devkit v1 board, I tried a soft reboot Ctrl+D and a hard reboot by pressing EN button. Their output are shown below. I had accessed the repl via picocom /dev/ttyUSB0 -b115200. My questions are:
- What is
OSError: [Errno 2] ENOENT? The closes previous issue I came across is this. After running picocom command, I did experience no respond from keyboard (as if the system hang). I pressed the EN button and the repl appeared thereafter. cpu_start: Single core mode. The esp32 has dual core. Is there a Dual core mode?
>>>
PYB: soft reboot
OSError: [Errno 2] ENOENT
MicroPython v1.9.4-788-gf874e8184 on 2019-01-25; ESP32 module with ESP32
Type "help()" for more information.
>>> ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:4732
load:0x40078000,len:7496
load:0x40080400,len:5512
entry 0x4008114c
I (411) cpu_start: Pro cpu up.
I (411) cpu_start: Single core mode
I (411) heap_init: Initializing. RAM available for dynamic allocation:
I (414) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (420) heap_init: At 3FFC0E38 len 0001F1C8 (124 KiB): DRAM
I (427) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (433) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (440) heap_init: At 400915EC len 0000EA14 (58 KiB): IRAM
I (446) cpu_start: Pro cpu start user code
I (16) cpu_start: Starting scheduler on PRO CPU.
OSError: [Errno 2] ENOENT
MicroPython v1.9.4-788-gf874e8184 on 2019-01-25; ESP32 module with ESP32
Type "help()" for more information.
>>>