Arduino Env. and ESP wrover

[Gunter H]

Hello,

Environment:
ESP32 wrover (dev board) / ESP32 wroom / working arduino environment on Win7/64 bit.

Symtoms:
Script flased on a ESP32 wroom are executed (for example simple blink)
Scripts can be flashed on ESP wrover module, but seems not to be executed (no blinking led .

IDF_SDK blink sample runs on ESP32 wrover.

Question:
Is the flash speed set via arduno bootloader always set to 80MHz?
As I read in an other thread, flash speed of 80 MHz causes trouble on dev board.

If yes, can bootloader used by arduino environment be modified (patched)?

thanks in advance,
Gunter

[f.h-f.s.]

I think the 80mhz in bootloader means the CPU Clock.
The problems with 80mhz is when the SPI connected PSRAM is clocked at 80mhz. (or so i've read)

[Gunter H]

Found it by myself...Just set 40MHz in Tools...Flash frequency...

[copercini]

Is the flash speed set via arduno bootloader always set to 80MHz?

You can set in on Arduino menu


I also heard that the flash of wrover (module) doesn't work in 80Mhz