Flash read error, 1000 on custom PCB

[Kaydrae]

Hello,

I have this PCB that I designed around the esp32-wroom-32D and I am using an esp32-wroom-32 programmer to be able to connect it through serial. But when I connect it I get the following error in the serial output:

Code: Select all

rst:0x10 (RTCWDT_RTC_RESET),boot:0x32 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371 
ets Jun  8 2016 00:22:57

I am not sure what the problem is, The board was assembled from jlcpcb, so I soldered nothing on there. I have posted the schematic. Am I missing something? Thanks in advance.

[WiFive]

boot:0x32

Gpio12 is high which is selecting 1.8v sdio voltage. You need to burn the efuse to lock it to 3.3v

[Kaydrae]

You need to burn the efuse to lock it to 3.3v

How would I do that? Could I also ground gpio12 to fix the problem?

[WiFive]

https://github.com/espressif/esptool/wi ... e-vdd_sdio

[chegewara]

https://github.com/espressif/esptool/wi ... -Selection