#include <Wire.h>
#include <SPI.h>

void setup() {
	Serial.begin(115200);
	Serial.printf("Internal Total heap %d, internal Free Heap %d\n", ESP.getHeapSize(), ESP.getFreeHeap());
	Serial.printf("SPIRam Total heap %d, SPIRam Free Heap %d\n", ESP.getPsramSize(), ESP.getFreePsram());
	Serial.printf("Flash Size %d, Flash Speed %d\n", ESP.getFlashChipSize(), ESP.getFlashChipSpeed());
	Serial.printf("ChipRevision %d, Cpu Freq %d, SDK Version %s\n", ESP.getChipRevision(), ESP.getCpuFreqMHz(), ESP.getSdkVersion());
	Serial.println("");

	int alloc_size = 2000000;
	uint8_t *p = (uint8_t*)malloc(alloc_size);
	if (p == NULL) {
		Serial.println("Memory Allocate Failed");
	}

	int i = 0;
	while ( i < alloc_size ) {
		p[i] = (char)i;
		if ( p[i] != (char)i ) {
			Serial.printf("write error at %d\n", i);
			i--;
			break;
		}
		i++;
	}
	Serial.printf("%d bytes check Ok\n", i);
	free(p);
}

void loop() {
}