Boot Info ESP-WROVER-VB

[tjoseph]

Hi All,
I just got my first ESP32 development board today. I am new to this.
The printing on the PCB at the LCD side reads: ESP-WROVER-KIT_V4.1
The ESP chip is ESP32-WROVER-B.

As per the documentation that I found, it should have 4MB FLASH and 8MB pSRAM.
Could you tell me, why is it saying 2MB FLASH while booting ? Is this a variant ?
I could not find any info on ESP32-WROVER with 2MB FLASH.

Please have a look at its booting log, below:

TIA,

TJoseph

ets Jun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x1e (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:5984
ho 0 tail 12 room 4
load:0x40078000,len:0
load:0x40078000,len:15720
entry 0x4007901c
I (30) boot: ESP-IDF v3.1-dev-789-g0c58f11 2nd stage bootloader
I (31) boot: compile time 20:13:08
I (31) boot: Enabling RNG early entropy source...
I (36) qio_mode: Enabling default flash chip QIO
I (42) boot: SPI Speed : 40MHz
I (46) boot: SPI Mode : QIO
I (50) boot: SPI Flash Size : 2MB
I (54) boot: Partition Table:
I (57) boot: ## Label Usage Type ST Offset Length
I (65) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (72) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (80) boot: 2 factory factory app 00 00 00010000 00100000
I (87) boot: End of partition table
I (91) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x1d36c (119660) map
I (136) esp_image: segment 1: paddr=0x0002d394 vaddr=0x3ffb0000 size=0x025c0 ( 9664) load
I (139) esp_image: segment 2: paddr=0x0002f95c vaddr=0x40080000 size=0x00400 ( 1024) load
I (143) esp_image: segment 3: paddr=0x0002fd64 vaddr=0x40080400 size=0x002ac ( 684) load
I (152) esp_image: segment 4: paddr=0x00030018 vaddr=0x400d0018 size=0x1a354 (107348) map
I (192) esp_image: segment 5: paddr=0x0004a374 vaddr=0x400806ac size=0x0d73c ( 55100) load
I (213) esp_image: segment 6: paddr=0x00057ab8 vaddr=0x400c0000 size=0x00000 ( 0) load
I (221) boot: Loaded app from partition at offset 0x10000
I (221) boot: Disabling RNG early entropy source...
I (223) spiram: SPI RAM mode: flash 40m sram 40m
I (227) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (234) cpu_start: Pro cpu up.
I (238) cpu_start: Starting app cpu, entry point is 0x4008111c
I (0) cpu_start: App cpu up.
I (1136) spiram: SPI SRAM memory test OK
I (1137) heap_init: Initializing. RAM available for dynamic allocation:
I (1137) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1143) heap_init: At 3FFB3368 len 0002CC98 (179 KiB): DRAM
I (1150) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (1156) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (1162) heap_init: At 4008DDE8 len 00012218 (72 KiB): IRAM
I (1169) cpu_start: Pro cpu start user code
I (1174) spiram: Adding pool of 4096K of external SPI memory to heap allocator
I (1181) spiram: Reserving pool of 32K of internal memory for DMA/internal allocations
I (196) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (0) gpio: GPIO[0]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (0) gpio: GPIO[2]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
I (10) gpio: GPIO[4]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
light init
LCD ID: 00000000
ILI9341 detected.
LCD ILI9341 initialization.

[WiFive]

That is not the detected flash size, it is the configured flash size via the image header. You change it in menuconfig settings.