- Thu Jul 18, 2019 6:16 pm
#83152
Hi,
I have laid out a custom board for an ESP8266MOD. I am able to upload firmware to it from the Arduino IDE. However, when the thing boots from Flash my program (blinky example) does not run, instead I get a 26Mhz squarewave out of IO0.
Does anyone have any idea where I should look? Strapping pins are as follows.
RST 10k to +3.3
EN 10k t0 +3.3
IO15 10k to 0V
IO2 10k to +3.3
IO0 10k to +3.3 (have also tried no pullup and just leave this floating - same result).
Gerry
I have laid out a custom board for an ESP8266MOD. I am able to upload firmware to it from the Arduino IDE. However, when the thing boots from Flash my program (blinky example) does not run, instead I get a 26Mhz squarewave out of IO0.
Does anyone have any idea where I should look? Strapping pins are as follows.
RST 10k to +3.3
EN 10k t0 +3.3
IO15 10k to 0V
IO2 10k to +3.3
IO0 10k to +3.3 (have also tried no pullup and just leave this floating - same result).
Gerry
