I am building a project based on a bare ESP32-WROOM-32 module (not a devkit). So far I was able to hook it up to and boot but when I want to flash it, it won't enter DOWNLOAD_BOOT mode.
My setup:
GPIO2 -> 10k pulldown to GND
GPIO0 -> 10k pullup to VCC
EN -> 10k pullup to VCC and 100nF capacitor between EN and GND
TX and RX connected to FTDI chip
This is what I get on serial console when doing a hard reset by connecting EN to GND:
Code: Select all
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0008,len:8
load:0x3fff0010,len:3480
load:0x40078000,len:7804
ho 0 tail 12 room 4
load:0x40080000,len:252
entry 0x40080034
[0;32mI (46) boot: ESP-IDF v2.0-3-gbef9896 2nd stage bootloader[0m
[0;32mI (46) boot: compile time 05:59:45[0m
[0;32mI (46) boot: Enabling RNG early entropy source...[0m
[0;32mI (65) boot: SPI Speed : 40MHz[0m
[0;32mI (77) boot: SPI Mode : DIO[0m
[0;32mI (90) boot: SPI Flash Size : 4MB[0m
[0;32mI (102) boot: Partition Table:[0m
[0;32mI (113) boot: ## Label Usage Type ST Offset Length[0m
[0;32mI (136) boot: 0 phy_init RF data 01 01 0000f000 00001000[0m
[0;32mI (159) boot: 1 otadata OTA data 01 00 00010000 00002000[0m
[0;32mI (183) boot: 2 nvs WiFi data 01 02 00012000 0000e000[0m
[0;32mI (206) boot: 3 at_customize unknown 40 00 00020000 000e0000[0m
[0;32mI (229) boot: 4 ota_0 OTA app 00 10 00100000 00180000[0m
[0;32mI (252) boot: 5 ota_1 OTA app 00 11 00280000 00180000[0m
[0;32mI (276) boot: End of partition table[0m
[0;32mI (289) boot: Disabling RNG early entropy source...[0m
[0;32mI (306) boot: Loading app partition at offset 00100000[0m
[0;32mI (1481) boot: segment 0: paddr=0x00100018 vaddr=0x00000000 size=0x0ffe8 ( 65512) [0m
[0;32mI (1482) boot: segment 1: paddr=0x00110008 vaddr=0x3f400010 size=0x1c5f0 (116208) map[0m
[0;32mI (1498) boot: segment 2: paddr=0x0012c600 vaddr=0x3ffb0000 size=0x0215c ( 8540) load[0m
[0;32mI (1529) boot: segment 3: paddr=0x0012e764 vaddr=0x40080000 size=0x00400 ( 1024) load[0m
[0;32mI (1552) boot: segment 4: paddr=0x0012eb6c vaddr=0x40080400 size=0x1b028 (110632) load[0m
[0;32mI (1631) boot: segment 5: paddr=0x00149b9c vaddr=0x400c0000 size=0x00034 ( 52) load[0m
[0;32mI (1632) boot: segment 6: paddr=0x00149bd8 vaddr=0x00000000 size=0x06430 ( 25648) [0m
[0;32mI (1648) boot: segment 7: paddr=0x00150010 vaddr=0x400d0018 size=0x7a56c (501100) map[0m
[0;32mI (1676) heap_alloc_caps: Initializing. RAM available for dynamic allocation:[0m
[0;32mI (1698) heap_alloc_caps: At 3FFBA6B8 len 00025948 (150 KiB): DRAM[0m
[0;32mI (1719) heap_alloc_caps: At 3FFE8000 len 00018000 (96 KiB): D/IRAM[0m
[0;32mI (1741) heap_alloc_caps: At 4009B428 len 00004BD8 (18 KiB): IRAM[0m
[0;32mI (1761) cpu_start: Pro cpu up.[0m
[0;32mI (1773) cpu_start: Single core mode[0m
[0;32mI (1786) cpu_start: Pro cpu start user code[0m
[0;32mI (1847) cpu_start: Starting scheduler on PRO CPU.[0m
[0;32mI (1927) uart: queue free spaces: 10[0m
Bin version:0.10.0
I (1928) wifi: wifi firmware version: c604573
I (1929) wifi: config NVS flash: enabled
I (1930) wifi: config nano formating: disabled
I (1938) wifi: Init dynamic tx buffer num: 32
I (1939) wifi: wifi driver task: 3ffc4eac, prio:23, stack:3584
I (1944) wifi: Init static rx buffer num: 10
I (1948) wifi: Init dynamic rx buffer num: 0
I (1952) wifi: Init rx ampdu len mblock:7
I (1955) wifi: Init lldesc rx ampdu entry mblock:4
I (1960) wifi: wifi power manager task: 0x3ffca254 prio: 21 stack: 2560
I (1966) wifi: wifi timer task: 3ffcb2d4, prio:22, stack:3584
[0;31mE (1972) phy_init: PHY data partition validated[0m
[0;32mI (1991) phy: phy_version: 329, Feb 22 2017, 15:58:07, 0, 0[0m
I (1992) wifi: mode : softAP (b4:e6:2d:cf:37:02)
I (1995) wifi: mode : sta (b4:e6:2d:cf:37:01) + softAP (b4:e6:2d:cf:37:02)
I (1999) wifi: mode : softAP (b4:e6:2d:cf:37:02)
I tried my devkit board and got following message to console while pressing BOOT on reset:
Code: Select all
rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download
Any help appreciated!