Update I2C_eeprom_test.ino

I2C_EEPROM - Modified example sketch for hex display of memory dumps, explicitly defined 24LC64 memory size

Author: aldras

libraries/I2C_EEPROM/examples/I2C_eeprom_test/I2C_eeprom_test.ino

@@ -13,7 +13,17 @@
 // Due
 // #define SERIAL_OUT SerialUSB
 
-I2C_eeprom ee(0x50);
+//for decimal display uncomment below two lines
+#define DISPLAY_DECIMAL
+#define BLOCK_TO_LENGTH 10
+
+//for hex display uncomment below two lines
+//#define DISPLAY_HEX
+//#define BLOCK_TO_LENGTH 16
+
+#define MEMORY_SIZE 0x2000 //total bytes can be accessed 24LC64 = 0x2000 (maximum address = 0x1FFF)
+
+I2C_eeprom ee(0x50, MEMORY_SIZE);
 
 uint32_t start, diff, totals = 0;
 
@@ -77,7 +87,7 @@ void setup()
  SERIAL_OUT.println("\nTEST: write large string readback in small steps");
  ee.setBlock(0, 0, 128);
  char data2[] = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999A"; 
- ee.writeBlock(10, (uint8_t *) &data2, 100);
+ ee.writeBlock(10, (uint8_t *) &data2, sizeof(data2));
  dumpEEPROM(0, 128);
  for (int i = 0; i < 100; i++)
  {
@@ -91,7 +101,7 @@ void setup()
  SERIAL_OUT.println("\nTEST: check almost endofPage writeBlock");
  ee.setBlock(0, 0, 128);
  char data3[] = "6666"; 
- ee.writeBlock(60, (uint8_t *) &data3, 2);
+ ee.writeBlock(60, (uint8_t *) &data3, sizeof(data3));
  dumpEEPROM(0, 128);
 
  // SERIAL_OUT.println();
@@ -195,20 +205,59 @@ void loop()
 
 void dumpEEPROM(uint16_t memoryAddress, uint16_t length)
 {
- // block to 10
- memoryAddress = memoryAddress / 10 * 10;
- length = (length + 9) / 10 * 10;
+ #ifdef DISPLAY_DECIMAL
+ SERIAL_OUT.print("\t ");
+ #endif
+ #ifdef DISPLAY_HEX
+ SERIAL_OUT.print("\t ");
+ #endif
+ for(int x = 0; x < BLOCK_TO_LENGTH; x++) {
+ if(x != 0) {
+ #ifdef DISPLAY_DECIMAL
+ SERIAL_OUT.print(" ");
+ #endif
+ #ifdef DISPLAY_HEX
+ SERIAL_OUT.print(" ");
+ #endif
+ }
+ #ifdef DISPLAY_DECIMAL
+ SERIAL_OUT.print(x);
+ #endif
+ #ifdef DISPLAY_HEX
+ SERIAL_OUT.print(x,HEX);
+ #endif
+ }
+ SERIAL_OUT.println();
+
+ // block to defined length
+ memoryAddress = memoryAddress / BLOCK_TO_LENGTH * BLOCK_TO_LENGTH;
+ length = (length + BLOCK_TO_LENGTH - 1) / BLOCK_TO_LENGTH * BLOCK_TO_LENGTH;
 
  byte b = ee.readByte(memoryAddress); 
  for (int i = 0; i < length; i++) 
  {
- if (memoryAddress % 10 == 0)
+ char buf[6];
+ if (memoryAddress % BLOCK_TO_LENGTH == 0)
  {
- SERIAL_OUT.println();
- SERIAL_OUT.print(memoryAddress);
+ if(i != 0) {
+ SERIAL_OUT.println();
+ }
+ #ifdef DISPLAY_DECIMAL
+ sprintf(buf, "%05d", memoryAddress);
+ #endif
+ #ifdef DISPLAY_HEX
+ sprintf(buf, "%04X", memoryAddress);
+ #endif
+ SERIAL_OUT.print(buf);
  SERIAL_OUT.print(":\t");
  }
- SERIAL_OUT.print(b);
+ #ifdef DISPLAY_DECIMAL
+ sprintf(buf, "%03d", b);
+ #endif
+ #ifdef DISPLAY_HEX
+ sprintf(buf, "%02X", b);
+ #endif
+ SERIAL_OUT.print(buf);
  b = ee.readByte(++memoryAddress); 
  SERIAL_OUT.print(" ");
  }