ESP8266 Community Forum

- Sun Sep 27, 2015 9:01 am #29976 esp-12 4MByte, esp-open-sdk 1.3, latest Sming feature/rboot, Linux

As there's no handshake I suppose there's a full tx buffer somewhere that's hanging the boot up, but where and why? Nothing happens until I connect my usb serial device to the esp-12

Any ideas anyone?

- Sun Sep 27, 2015 10:36 am #29980 difficult to answer, since your physical wiring is not clear. Saw a similar behaviour with the nodeMcu boards however. It's not because you ended writing into the flash memory that the program starts executing.

You need to pull down the reset pin, for nodemcu I do this through a small program on linux that lowers RTS serial out during 1 second.

- Sun Sep 27, 2015 5:21 pm #30018 Well, I saw a reference on https://gitter.im/alonewolfx2/Sming that rab's rboot is now merged at last. I've now moved to the head (https://github.com/anakod/Sming) and all's well. Dunno what the real problem was. That bit I wrote about the tx buffer is bunkum!