- Sun Jan 31, 2016 1:21 pm
#40093
Then the next step should be to connect a scope to the reset pin and monitor for unusual activity.
Moderator: igrr
- Mon Feb 01, 2016 9:24 am
#40161
Hey,
I finally figured out the problem. I use a timer that waits for GPIO0 to be 0 V. It then pulls the RESET pin to 0 V.
It seams like something is wrong with this timer, since it constantly pulls the RESET pin to GND.
I removed the timer and it works now.
The strange thing about this is, that I am able to enter the bootloader mode using the timer...
Anyway thanks for your help!
schufti wrote:Then the next step should be to connect a scope to the reset pin and monitor for unusual activity.
Hey,
I finally figured out the problem. I use a timer that waits for GPIO0 to be 0 V. It then pulls the RESET pin to 0 V.
It seams like something is wrong with this timer, since it constantly pulls the RESET pin to GND.
I removed the timer and it works now.
The strange thing about this is, that I am able to enter the bootloader mode using the timer...
Anyway thanks for your help!
- Mon Feb 01, 2016 10:11 am
#40165
That is pretty normal that if you trigger an interrupt when GPIO0 becomes LOW, and that you are resetting the ESP during that interrupt, the GPIO0 is still LOW at that time, so it entering in the flashing upload boot mode.
To avoid that, simply use some other GPIOs, not the GPIO2/GPIO0/GPIO15 used for boot mode.
To avoid that, simply use some other GPIOs, not the GPIO2/GPIO0/GPIO15 used for boot mode.
