I was reading this thread: https://esp32.com/viewtopic.php?t=6514#p27964 It was stated that using the EMBED_TXTFILES macro encrypts the embedded file. However, I don't see this detail mentioned in the docs. Why wouldn't someone just be able to dump the plain text of firmware which also contains the ...

Thanks for the quick response!

Hi There, I'm trying to use IO16, on the ESP-WROVER-KIT but I can't seem to make it work. Configuring it as a output and pulsing the line I don't see anything on the scope. Other pins work fine. I read this pin is used by the PSRAM: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-refe...

Hi boarchuz,

After adding the 1uF cap to C3 and replacing C1 the board displays the same behavior as before. It boots straight into firmware upload mode. Of course removing C1 allows the board to boot normally.

Any ideas of other things to check?

Thanks!

Actually, now I'm a little confused. From table 4 in the hardware design guidelines: ESP32 Boots into SPI Boot when GPIO0 = 1 and GPIO2 = DC. ESP32 Boots into Firmware download mode when GPIO0=0, and GPIO2=0 GPIO0 defaults to PULL UP, GPIO2 defaults to PULL DOWN. So, in the circuit I posted, the dev...

Hi Boarchuz, Sorry, I'm just trying to clarify if C1 was needed at all. I will try replacing C3 from .1uF to 1uF and see what happens. As for C1, is it advisable to have a filter cap there? I can try the .1uF cap on C1 again once I have C3 replaced. As for your suggestion, is the recommendation you ...

Hi boarchuz, If configured like the posted schematic it boots into download mode. Pressing EN starts the device. Removing C1 makes it boot right away and if I do the BOOT/EN button sequence it boots into download mode. I'm wondering if C1 is not needed why use a cap at all? My previous value was .1u...

Bump. Any hints on what I might be doing wrong here?

Hi There, I hope I'm missing something simple, but I have a problem with custom board. Board works great, flash downloads, but after flashing, and anytime I connect power, I have to press "EN" for the controller to start. I'm attaching a schematic showing what I did with EN and GPIO0. IO2 is floatin...

Thanks for the quick and helpful answer ESP-Marius!