My program always crash when using large arrays(100*1024),serial Prompt information:

Guru Meditation Error: Core 0 panic'ed (Unhandled debug exception)
Register dump:
PC : 00000000 PS : 00000000 A0 : 00000000 A1 : 8007838d
A2 : 3ffe3c60 A3 : 50000008 A4 : 3ff0005c A5 : 00000000
A6 : 00000009 A7 ...

I have a question is about the main operation of the clock.The default clock frequency is how much?
while(1) {
gpio_set_level(BLINK_GPIO, 0);
gpio_set_level(BLINK_GPIO, 1);
}
I wrote above, the BLINK_GPIO output frequency only 3Mhz，If the clock is 240 Mhz，I/O output frequency why so low?

No idea about the SPI, but the ESP32 is going to have a modified I2S module. The DMA capabilities that has will stay, but it will also be able to output/input parallel data so you can e.g. send images to a parallel LCD using DMA.

I want to use I2S module,to read input data.but esp32_datasheet did ...