#include <SPI.h>
#include "Adafruit_FRAM_SPI.h"
/* Example code for the Adafruit SPI FRAM breakout */
uint8_t FRAM_CS = 10;
//Adafruit_FRAM_SPI fram = Adafruit_FRAM_SPI(FRAM_CS); // use hardware SPI
uint8_t FRAM_SCK= 13;
uint8_t FRAM_MISO = 12;
uint8_t FRAM_MOSI = 11;
//Or use software SPI, any pins!
Adafruit_FRAM_SPI fram = Adafruit_FRAM_SPI(FRAM_SCK, FRAM_MISO, FRAM_MOSI, FRAM_CS);
uint16_t addr = 0;
void setup(void) {
Serial.begin(9600);
while (!Serial) delay(10); // will pause Zero, Leonardo, etc until serial console opens
if (fram.begin()) {
Serial.println("Found SPI FRAM");
} else {
Serial.println("No SPI FRAM found ... check your connections\r\n");
while (1);
}
// Read the first byte
uint8_t test = fram.read8(0x0);
Serial.print("Restarted "); Serial.print(test); Serial.println(" times");
// Test write ++
fram.writeEnable(true);
fram.write8(0x0, test+1);
fram.writeEnable(false);
fram.writeEnable(true);
fram.write(0x1, (uint8_t *)"FTW!", 5);
fram.writeEnable(false);
// dump the entire 8K of memory!
uint8_t value;
for (uint16_t a = 0; a < 8192; a++) {
value = fram.read8(a);
if ((a % 32) == 0) {
Serial.print("\n 0x"); Serial.print(a, HEX); Serial.print(": ");
}
Serial.print("0x");
if (value < 0x1)
Serial.print('0');
Serial.print(value, HEX); Serial.print(" ");
}
}
void loop(void) {
}
