examples/Max7456Write/Max7456Write.ino

@@ -1416,8 +1416,8 @@ void setup() {
     Serial.print(number);
     Serial.println(F(" of 255"));
     MAX7456::getCARACFromProgMem(tableOfAllCharacters, i, currentChar); //Because the table is too big for ram memory
-    MAX7456::printCharacterToSerial(tableOfAllCharacters[i], true);
+
-    osd->sendCharacter(currentChar, i); //We send currentChar at address i.
+    osd->sendCharacter(currentChar, i & 0xF0, i & 0xF0); //We send currentChar at address i.
   }
   Serial.println(F("---------- DONE! ----------"));
   Serial.println(F("please unplug your arduino."));

examples/WriteMCM/WriteMCM.ino

@@ -74,7 +74,7 @@ void setup()
 {
   byte spi_junk;
   int x;
-  Serial.begin(115200);
+  Serial.begin(38400);
   Serial.flush();
 
   digitalWrite(USBSELECT,HIGH); //disable USB chip

src/MAX7456.cpp

@@ -2,6 +2,7 @@
 #include <Arduino.h>
 #include <SPI.h>
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::MAX7456
 //-----------------------------------------------------------------------------
@@ -23,6 +24,7 @@ void MAX7456::setBlinkParams(byte blinkBase, byte blinkDC)
 	digitalWrite(_pinCS,HIGH);	
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::setDisplayOffsets
 //----------------------------------------------------------------------------
@@ -52,16 +54,22 @@ MAX7456::MAX7456()
 {
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::sendCharacter
 //-----------------------------------------------------------------------------
-void MAX7456::sendCharacter(const charact chara, char address)
+void MAX7456::sendCharacter(const charact chara, byte x, byte y)
 {
+	byte charAddress;
+	if(y<0)
+		charAddress = x;
+	else
+		charAddress = x + (y<<4);
 	activateOSD(false);
 	//datasheet p38
 	digitalWrite(_pinCS,LOW);
 	SPI.transfer(CMAH_ADDRESS_WRITE);
-	SPI.transfer(address);
+	SPI.transfer(charAddress);
 
 	for(byte i = 0 ; i < 54 ; i++)
 	{
@@ -82,9 +90,11 @@ void MAX7456::sendCharacter(const charact chara, char address)
 		_regStat.whole = SPI.transfer(0x00);
 	}
 
+
 	digitalWrite(_pinCS,HIGH);
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::getCharacter
 //-----------------------------------------------------------------------------
@@ -92,6 +102,7 @@ void MAX7456::getCharacter(charact chara, byte x, byte y)
 {
 	byte charAddress;
 
+
 	if(y<=0)
 		charAddress = x;
 	else
@@ -101,6 +112,7 @@ void MAX7456::getCharacter(charact chara, byte x, byte y)
 	//datasheet p38
 	digitalWrite(_pinCS,LOW);
 
+
 	SPI.transfer(CMAH_ADDRESS_WRITE);
 	SPI.transfer(charAddress);
 
@@ -108,6 +120,7 @@ void MAX7456::getCharacter(charact chara, byte x, byte y)
 	SPI.transfer(CMM_ADDRESS_WRITE);
 	SPI.transfer(_regCmm);
 
+
 	for(byte i = 0 ; i < 54 ; i++)
 	{
 		SPI.transfer(CMAL_ADDRESS_WRITE);
@@ -118,12 +131,14 @@ void MAX7456::getCharacter(charact chara, byte x, byte y)
 	}
 
 	digitalWrite(_pinCS,HIGH);
+
 }
 //-----------------------------------------------------------------------------
 // Implements Max7456::printCharacterToSerial
 //-----------------------------------------------------------------------------
 void MAX7456::printCharacterToSerial(const charact array, bool img)
 {
+
 	if(img)
 	{
 		CARACT car ;
@@ -176,6 +191,7 @@ void MAX7456::printPixel(byte value)
 	}
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::print
 //-----------------------------------------------------------------------------
@@ -185,8 +201,7 @@ void MAX7456::print(const char string[], byte x, byte y, byte blink, byte inv)
 	byte          size;
 	byte *chars = NULL;
 
-	if (!string)
+	if(!string) return;
-		return;
 
 	size = 0;
 	currentChar = string[0];
@@ -207,6 +222,7 @@ void MAX7456::print(const char string[], byte x, byte y, byte blink, byte inv)
 	free(chars);
 }
 
+
 void MAX7456::printMAX7456Char(const byte address, byte x, byte y, byte blink, byte inv)
 {
 	byte ad = address;
@@ -236,28 +252,40 @@ void MAX7456::printMAX7456Chars(byte chars[], byte size, byte x, byte y, byte bl
 	digitalWrite(_pinCS,LOW);
 	SPI.transfer(DMM_ADDRESS_WRITE);
 
+
+
 	SPI.transfer(_regDmm.whole);
 
+
 	SPI.transfer(DMAH_ADDRESS_WRITE); // set start address high
 	SPI.transfer(posAddressHI);
 
 	SPI.transfer(DMAL_ADDRESS_WRITE); // set start address low
 	SPI.transfer(posAddressLO);
 
+
 	for(int i = 0; i < size ; i++)
 	{
 		currentChar = chars[i];
 		SPI.transfer(DMDI_ADDRESS_WRITE);
 		SPI.transfer(currentChar);
+
 	}
 
 	//end character (we're done).
 	SPI.transfer(DMDI_ADDRESS_WRITE);
 	SPI.transfer(0xff);
 
+/*
+	_regVm0.bits.
+	SPI.transfer(VM0_ADDRESS_WRITE);
+	SPI.transfer(0x4c);*/
+
+
 	digitalWrite(_pinCS,HIGH);
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::print
 //-----------------------------------------------------------------------------
@@ -268,6 +296,7 @@ void MAX7456::print(double value, byte x, byte y, byte before, byte after, byte
 
 	strValue = (char*) malloc((before+after+2)* sizeof(char));
 
+
 	if(after==0)
 		dtostrf(value,before+after,after,strValue);
 	else
@@ -290,6 +319,7 @@ void MAX7456::print(double value, byte x, byte y, byte before, byte after, byte
 	free(strValue);
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::giveMAX7456CharFromAsciiChar
 //-----------------------------------------------------------------------------
@@ -306,6 +336,7 @@ byte MAX7456::giveMAX7456CharFromAsciiChar(char ascii)
 #endif
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::clearScreen
 //-----------------------------------------------------------------------------
@@ -327,6 +358,7 @@ void MAX7456::clearScreen()
     digitalWrite(_pinCS, HIGH); //disable device
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::init
 //-----------------------------------------------------------------------------
@@ -350,6 +382,7 @@ void MAX7456::init(byte iPinCS)
 	digitalWrite(_pinCS,HIGH);
 	delay(500);
 
+
 	digitalWrite(_pinCS,LOW);
 	for(int x = 0 ; x < 16 ; x++)
 	{
@@ -370,6 +403,7 @@ void MAX7456::init(byte iPinCS)
 	digitalWrite(_pinCS,HIGH);
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::activateOSD
 //-----------------------------------------------------------------------------
@@ -392,6 +426,7 @@ void MAX7456::activateOSD(bool act)
 	}
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::activateExternalVideo
 //-----------------------------------------------------------------------------
@@ -408,6 +443,7 @@ void MAX7456::activateExternalVideo(bool activExtVid)
 	digitalWrite(_pinCS,HIGH);
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::CARACT2ByteArray
 //-----------------------------------------------------------------------------
@@ -421,6 +457,7 @@ byte *MAX7456::CARACT2ByteArray(const CARACT car)
 	return array;
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::byteArray2CARACT
 //-----------------------------------------------------------------------------
@@ -433,6 +470,7 @@ CARACT MAX7456::byteArray2CARACT(const charact array)
 	return car;
 }
 
+
 //-----------------------------------------------------------------------------
 // Implements MAX7456::getCARACFromProgMem
 //-----------------------------------------------------------------------------

src/MAX7456.h

@@ -9,6 +9,7 @@
 #ifndef MAX7456_H
 #define MAX7456_H
 
+
 //def next only if you changed your table for an ascii one
 //i.e address 0x00 -> ' '
 //....
@@ -18,10 +19,13 @@
 
 #include "MAX7456Registers.h"
 
+
+
 /**
  *  @mainpage MAX7456 Arduino library
  */
 
+
 /**
  *  @class MAX7456
  *  @brief Represents a MAX7456 device communicating through SPI port
@@ -29,11 +33,14 @@
 class MAX7456
 {
 public:
+
+
 	/**
 	 *  Default constructor
 	 */
 	MAX7456();
 
+
 	/**
 	 *  Constructor
 	 *  Initialize communications and device
@@ -41,6 +48,7 @@ public:
 	 */
 	MAX7456(byte pinCS);
 
+
 	/**
 	 *  Initialize communications and device
 	 *  @param pinCS : pin ~CS of the arduino where MAX7456 is plugged.
@@ -58,6 +66,7 @@ public:
 	 */
 	void setBlinkParams(byte blinkBase, byte blinkDC);
 
+	
 	/**
 	 * Set Horizontal and Vertical display offset
 	 * @param horizontal : the horizontal offset in pixels (between 0 and 63).
@@ -65,11 +74,13 @@ public:
 	 */	 
 	void setDisplayOffsets(byte horizontal, byte vertical);
 
+	
 	/**
 	 *  Erase Display Memory.
 	 */
 	void clearScreen();
 
+
 	/**
 	 *  Activate osd on screen
 	 *  @param act :
@@ -78,6 +89,7 @@ public:
 	 */
 	void activateOSD(bool act = true);
 
+
 	/**
 	 *  Activate input video as a background
 	 *  @param activExtVid :
@@ -86,17 +98,20 @@ public:
 	 */
 	void activateExternalVideo(bool activExtVid = true);
 
+
 	/**
-	 *  Put a character in the memory character of MAX7456
+	 *  Put a character in the memory character of max7456
 	 *  @param array : the byte array representing the character (54 bytes long)
-	 *  @param adress : the address of character in memory
+	 *  @param x : the horizontal position of character in memory
+	 *  @param y : the vertical position of character in memory.
 	 *  @code
 	 *  charact c={0x44,....} //Whatever charact here
-	 *  max.sendCharacter(c,0x54); //put c at 4th line 5th column ie. address 54.
+	 *  max.sendCharacter(c,4,5); //put c at 4th line 5th column ie. address 54.
 	 *  max.sendCharacter(c,0x43); //put c in mem at address 43.
 	 *  @endcode
 	 */
-	void sendCharacter(const charact array, char address);
+	void sendCharacter(const charact array, byte x, byte y);
+
 
 	/**
 	 *  Get a character from the character memory of max7456
@@ -106,6 +121,7 @@ public:
 	 */
 	void getCharacter(charact array, byte x, byte y);
 
+
 	/**
 	 *  Put a string in the display memory of max7456
 	 *  @param string : The string to be displayed
@@ -120,6 +136,8 @@ public:
 	 */
 	void print(const char string[], byte x, byte y, byte blink = 0,byte inv = 0);
 
+
+
 	/**
 	 *  Put a float in the display memory of max7456
 	 *  @param value : The value to be displayed
@@ -140,6 +158,7 @@ public:
 	 */
 	void print(double value, byte x, byte y, byte before, byte after, byte blink=0,byte inv=0);
 
+
 	/**
 	 *  Put some characters in the display memory of MAX7456.
 	 *    The characters are given by their address in the
@@ -157,6 +176,7 @@ public:
 	 */
 	void printMAX7456Chars(byte chars[],byte size,byte x, byte y, byte blink = 0,byte inv = 0);
 
+
 	/**
 	 *  Put one character from the character memory in the display memory of MAX7456
 	 *  @param address : The address in character memory of the character to be displayed
@@ -176,6 +196,7 @@ public:
 	 */
 	static void printCharacterToSerial(const charact array, bool img = true);
 
+
 	/**
 	 *  Converts a CARACT character to a byte array representation.
 	 *  @param car : the CARACT character
@@ -183,6 +204,7 @@ public:
 	 */
 	static byte* CARACT2ByteArray(const CARACT car);
 
+
 	/**
 	 *  Converts a byte array to a CARACT character.
 	 *  @param array : the byte array representing the character (54 bytes long)
@@ -190,6 +212,7 @@ public:
 	 */
 	static CARACT byteArray2CARACT(const charact array);
 
+
 	/**
 	 * Get the ith character from program memory
 	 * @param table the address of the array in prog memory
@@ -202,6 +225,7 @@ public:
 	static void getCARACFromProgMem(const char *table, byte i,charact c);
 
 private:
+
 	byte giveMAX7456CharFromAsciiChar(char ascii);
 	static void printPixel(byte value);
 
@@ -228,4 +252,6 @@ private:
 	REG_CMDO  _regCmdo; // not used yet
 };
 
+
 #endif /* MAX7456_H_ */
+

src/MAX7456Registers.h

@@ -8,8 +8,10 @@
 #ifndef MAX7456REGISTERS_H_
 #define MAX7456REGISTERS_H_
 
+
 #include <Arduino.h>
 
+
 /**
  * @typedef charact
  * @brief Represents a character as stored in MAX7456 character memory.
@@ -74,6 +76,7 @@ union REG_VM0
 	} bits;
 };
 
+
 #define VM1_ADDRESS_WRITE 0x01
 #define VM1_ADDRESS_READ 0x81
 
@@ -98,6 +101,7 @@ union REG_VM1
 		 */
 		unsigned char blinkingDutyCycle : 2;
 
+
 		/**@brief Blinking Time (BT)
 		 * @li b00 (0) = 2 fields (NTSC = 33ms ; PAL = 40ms)
 		 * @li b01 (1) = 4 fields (NTSC = 67ms ; PAL = 80ms)
@@ -106,6 +110,7 @@ union REG_VM1
 		 */
 		unsigned char blinkingTime : 2;
 
+
 		/**@brief Background Mode Brightness
 		 * @li b000 (0) = 0%
 		 * @li b001 (1) = 7%
@@ -158,6 +163,7 @@ union REG_HOS
 	} bits;
 };
 
+
 #define VOS_ADDRESS_WRITE 0x03
 #define VOS_ADDRESS_READ 0x83
 
@@ -258,9 +264,12 @@ union REG_DMM
 		/**@brief Don't care*/
 		unsigned char unsused : 1;
 
+
+
 	} bits;
 };
 
+
 #define DMAH_ADDRESS_WRITE 0x05
 #define DMAH_ADDRESS_READ 0x85
 /**@union REG_DMAH
@@ -284,10 +293,12 @@ union REG_DMAH
 	} bits;
 };
 
+
 #define DMAL_ADDRESS_WRITE 0x06
 #define DMAL_ADDRESS_READ 0x86
 typedef unsigned char REG_DMAL;
 
+
 #define DMDI_ADDRESS_WRITE 0x07
 #define DMDI_ADDRESS_READ 0x87
 typedef unsigned char REG_DMDI;
@@ -342,6 +353,7 @@ union REG_CMDI
 	} bits;
 };
 
+
 #define OSDM_ADDRESS_WRITE 0x0C
 #define OSDM_ADDRESS_READ 0x8C
 
@@ -368,6 +380,7 @@ union REG_OSDM
 		 */
 		unsigned char osdInsertionMuxSwitchingTime : 3;
 
+
 		/**@brief OSD Rise And Fall Time
 		 * @li b000 (0) : 20ns (maximum sharpness/maximum crosscolor artifacts )
 		 * @li b001 (1) : 30ns
@@ -378,12 +391,14 @@ union REG_OSDM
 		 */
 		unsigned char osdRiseAndFallTime : 3;
 
+
 		/**@brief don't care*/
 		unsigned char unused : 2;
 
 	} bits;
 };
 
+
 #define RB0_ADDRESS_WRITE 0x10
 #define RB0_ADDRESS_READ 0x90
 
@@ -547,6 +562,7 @@ union REG_STAT
 	} bits;
 };
 
+
 #define DMDO_ADDRESS_READ 0xB0
 
 /**@typedef DMDO
@@ -579,26 +595,33 @@ union REG_CMDO
 	} bits;
 };
 
+
+
+
 /**\def COLOR_BLACK
  * \brief Black value for a pixel (2bits)
  */
 #define COLOR_BLACK       0
 
+
 /**\def COLOR_WHITE
  * \brief White value for a pixel (2bits)
  */
 #define COLOR_WHITE       2
 
+
 /**\def COLOR_TRANSPARENT
  * \brief Transparent value for a pixel (2bits)
  */
 #define COLOR_TRANSPARENT 1
 
+
 /**\def COLOR_GREY
  * \brief Grey value for a pixel (2bits)
  */
 #define COLOR_GREY COLOR_TRANSPARENT
 
+
 /**@struct PIXEL
  * @brief represent a 4-pixels value
  */
@@ -611,8 +634,10 @@ struct PIXEL
 	/**@brief 2nd pixel*/
 	byte pix1 : 2;
 
+
 	/**@brief 1st pixel*/
 	byte pix0 : 2;
+
 };
 
 /**@union LINE
@@ -626,6 +651,7 @@ union LINE
 	struct PIXEL pixels[3];
 };
 
+
 /**
  * @union CARACT
  * @brief Represents a character with lines and pixels.
@@ -639,20 +665,20 @@ union CARACT
 	union LINE line[18];
 };
 
-enum
+
-{
+enum{
 _BT_BT=0,
 _BT_2BT,
 _BT_3BT,
 _3BT_BT
 };
 
-enum
+enum{
-{
 _2fields=0,
 _4fields,
 _6fields,
 _8fields
 };
 
+
 #endif /* MAX7456REGISTERS_H_ */