ESP8266 Community Forum

- Mon Aug 05, 2019 2:55 am #83364 I made my own WiFi circuit board using ESP8266EX and a W25Q32 flash(bought from mouser). My problem is it is not flashing. I used NodeMCU flasher and ESP flashing tool. ESP only gives boot mode 1,7 when try to flash and boot mode 3,7 when I reset, at 74880 baud rate(Which looks correct according to my knowledge).

For test my surrounding circuitry, I replaced ESP8266EX and flash with an existing ESP01's ESP chip and flash. I can flash my circuit with that chip and flash, without an error and I can run codes.(Also I tried several new ESP8266EXs and W25Q32s and they didn't work)

Are there any additional thing I should do when I use brand-new ESP8266EX and empty W25Q32 to make it flash?

- Tue Aug 06, 2019 9:35 pm #83380 Did you connect the appropriate pins to enable flash mode? Have a look at the circuit for the Wemos or similar - they are out on the net. This should give you a good idea of any missing connections

- Tue Aug 06, 2019 9:58 pm #83381 Yup, My connections are totally OK. I compared with ESP01 and ESP12E

My Output from the circuit is Reset cause 2 and boot mode 1,7

- Wed Aug 07, 2019 10:07 pm #83395 Can you post your circuit up? When you said you replaced your components with an ESP01, did you mean the whole module or just the ESP and flash chips?

The one thing that I can think of is the memory R/W mode - did you try DIO and DOUT modes as well as QIO modes when you flashed?

What was the output from the flash process? Can you show us a screen dump?

I assume you also flashed the boot and other sectors as well?