2in13_V3 Add some comments

Arduino/epd2in13_V3/epd2in13_V3.cpp

@@ -78,6 +78,10 @@ Epd::~Epd()
 {
 };
 
+/******************************************************************************
+function :	Pin definition
+parameter:
+******************************************************************************/
 Epd::Epd()
 {
     reset_pin = RST_PIN;
@@ -88,27 +92,32 @@ Epd::Epd()
     height = EPD_HEIGHT;
 };
 
-/**
- *  @brief: basic function for sending commands
- */
+/******************************************************************************
+function :	send command
+parameter:
+     command : Command register
+******************************************************************************/
 void Epd::SendCommand(unsigned char command)
 {
     DigitalWrite(dc_pin, LOW);
     SpiTransfer(command);
 }
 
-/**
- *  @brief: basic function for sending data
- */
+/******************************************************************************
+function :	send data
+parameter:
+    Data : Write data
+******************************************************************************/
 void Epd::SendData(unsigned char data)
 {
     DigitalWrite(dc_pin, HIGH);
     SpiTransfer(data);
 }
 
-/**
- *  @brief: Wait until the busy_pin goes HIGH
- */
+/******************************************************************************
+function :	Wait until the busy_pin goes LOW
+parameter:
+******************************************************************************/
 void Epd::WaitUntilIdle(void)
 {
     while(1) {      //LOW: idle, HIGH: busy
@@ -118,6 +127,14 @@ void Epd::WaitUntilIdle(void)
     }
 }
 
+/******************************************************************************
+function :	Setting the display window
+parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
+	Xend : End position of X-axis
+	Yend : End position of Y-axis
+******************************************************************************/
 void Epd::SetWindows(unsigned char Xstart, unsigned char Ystart, unsigned char Xend, unsigned char Yend)
 {
     SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
@@ -131,6 +148,12 @@ void Epd::SetWindows(unsigned char Xstart, unsigned char Ystart, unsigned char X
     SendData((Yend >> 8) & 0xFF);
 }
 
+/******************************************************************************
+function :	Set Cursor
+parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
+******************************************************************************/
 void Epd::SetCursor(unsigned char Xstart, unsigned char Ystart)
 {
     SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER
@@ -141,6 +164,11 @@ void Epd::SetCursor(unsigned char Xstart, unsigned char Ystart)
     SendData((Ystart >> 8) & 0xFF);
 }
 
+/******************************************************************************
+function :	Send lut data and configuration
+parameter:	
+    lut :   lut data
+******************************************************************************/
 void Epd::Lut(unsigned char *lut)
 {
 	unsigned char count;
@@ -161,6 +189,11 @@ void Epd::Lut(unsigned char *lut)
 	SendData(*(lut+158));
 }
 
+/******************************************************************************
+function :	Initialize the e-Paper register
+parameter:
+	Mode : Mode selection
+******************************************************************************/
 int Epd::Init(char Mode)
 {
     /* this calls the peripheral hardware interface, see epdif */
@@ -236,11 +269,10 @@ int Epd::Init(char Mode)
     return 0;
 }
 
-/**
- *  @brief: module reset.
- *          often used to awaken the module in deep sleep,
- *          see Epd::Sleep();
- */
+/******************************************************************************
+function :	Software reset
+parameter:
+******************************************************************************/
 void Epd::Reset(void)
 {
     DigitalWrite(reset_pin, HIGH);
@@ -251,6 +283,10 @@ void Epd::Reset(void)
     DelayMs(20);
 }
 
+/******************************************************************************
+function :	Clear screen
+parameter:
+******************************************************************************/
 void Epd::Clear(void)
 {
     int w, h;
@@ -270,6 +306,11 @@ void Epd::Clear(void)
     WaitUntilIdle();
 }
 
+/******************************************************************************
+function :	Sends the image buffer in RAM to e-Paper and displays
+parameter:
+	frame_buffer : Image data
+******************************************************************************/
 void Epd::Display(const unsigned char* frame_buffer)
 {
     int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
@@ -291,6 +332,11 @@ void Epd::Display(const unsigned char* frame_buffer)
     WaitUntilIdle();
 }
 
+/******************************************************************************
+function :	Refresh a base image
+parameter:
+	frame_buffer : Image data	
+******************************************************************************/
 void Epd::DisplayPartBaseImage(const unsigned char* frame_buffer)
 {
     int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
@@ -319,7 +365,12 @@ void Epd::DisplayPartBaseImage(const unsigned char* frame_buffer)
     WaitUntilIdle();
 }
 
-void Epd::DisplayPart(const unsigned char* frame_buffer)
+/******************************************************************************
+function :	Sends the image buffer in RAM to e-Paper and partial refresh
+parameter:
+	frame_buffer : Image data
+******************************************************************************/
+void Epd::DisplayPart(const unsigned char* )
 {
     int w = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
     int h = EPD_HEIGHT;
@@ -340,6 +391,10 @@ void Epd::DisplayPart(const unsigned char* frame_buffer)
     WaitUntilIdle();
 }
 
+/******************************************************************************
+function :	Clear screen
+parameter:
+******************************************************************************/
 void Epd::ClearPart(void)
 {
     int w, h;
@@ -359,14 +414,10 @@ void Epd::ClearPart(void)
     WaitUntilIdle();
 }
 
-/**
- *  @brief: After this command is transmitted, the chip would enter the
- *          deep-sleep mode to save power.
- *          The deep sleep mode would return to standby by hardware reset.
- *          The only one parameter is a check code, the command would be
- *          executed if check code = 0xA5.
- *          You can use Epd::Init() to awaken
- */
+/******************************************************************************
+function :	Enter sleep mode
+parameter:
+******************************************************************************/
 void Epd::Sleep()
 {
     SendCommand(0x10); //enter deep sleep

RaspberryPi_JetsonNano/c/lib/e-Paper/EPD_2in13_V3.c

@@ -146,6 +146,10 @@ static void EPD_2in13_V3_TurnOnDisplay(void)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Turn On Display
+parameter:	
+******************************************************************************/
 static void EPD_2in13_V3_TurnOnDisplay_Partial(void)
 {
 	EPD_2in13_V3_SendCommand(0x22); // Display Update Control
@@ -154,6 +158,11 @@ static void EPD_2in13_V3_TurnOnDisplay_Partial(void)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Set lut
+parameter:	
+    lut :   lut data
+******************************************************************************/
 static void EPD_2IN13_V3_LUT(UBYTE *lut)
 {
 	UBYTE count;
@@ -163,6 +172,11 @@ static void EPD_2IN13_V3_LUT(UBYTE *lut)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Send lut data and configuration
+parameter:	
+    lut :   lut data
+******************************************************************************/
 static void EPD_2IN13_V2_LUT_by_host(UBYTE *lut)
 {
 	EPD_2IN13_V3_LUT((UBYTE *)lut);			//lut
@@ -181,6 +195,10 @@ static void EPD_2IN13_V2_LUT_by_host(UBYTE *lut)
 /******************************************************************************
 function :	Setting the display window
 parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
+	Xend : End position of X-axis
+	Yend : End position of Y-axis
 ******************************************************************************/
 static void EPD_2in13_V3_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
 {
@@ -198,6 +216,8 @@ static void EPD_2in13_V3_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWOR
 /******************************************************************************
 function :	Set Cursor
 parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
 ******************************************************************************/
 static void EPD_2in13_V3_SetCursor(UWORD Xstart, UWORD Ystart)
 {
@@ -270,6 +290,7 @@ void EPD_2in13_V3_Clear(void)
 /******************************************************************************
 function :	Sends the image buffer in RAM to e-Paper and displays
 parameter:
+	Image : Image data
 ******************************************************************************/
 void EPD_2in13_V3_Display(UBYTE *Image)
 {
@@ -291,6 +312,7 @@ void EPD_2in13_V3_Display(UBYTE *Image)
 /******************************************************************************
 function :	Refresh a base image
 parameter:
+	Image : Image data	
 ******************************************************************************/
 void EPD_2in13_V3_Display_Base(UBYTE *Image)
 {  
@@ -316,6 +338,7 @@ void EPD_2in13_V3_Display_Base(UBYTE *Image)
 /******************************************************************************
 function :	Sends the image buffer in RAM to e-Paper and partial refresh
 parameter:
+	Image : Image data
 ******************************************************************************/
 void EPD_2in13_V3_Display_Partial(UBYTE *Image)
 {

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13_V3.py

@@ -91,7 +91,10 @@ class EPD:
         0x22,	0x17,	0x41,	0x0,	0x32,	0x36,
     ]
         
-    # Hardware reset
+    '''
+    function :Hardware reset
+    parameter:
+    '''
     def reset(self):
         epdconfig.digital_write(self.reset_pin, 1)
         epdconfig.delay_ms(20) 
@@ -99,43 +102,75 @@ class EPD:
         epdconfig.delay_ms(2)
         epdconfig.digital_write(self.reset_pin, 1)
         epdconfig.delay_ms(20)   
-
+	
+	'''
+    function :send command
+    parameter:
+     command : Command register
+    '''
     def send_command(self, command):
         epdconfig.digital_write(self.dc_pin, 0)
         epdconfig.digital_write(self.cs_pin, 0)
         epdconfig.spi_writebyte([command])
         epdconfig.digital_write(self.cs_pin, 1)
 
+	'''
+    function :send data
+    parameter:
+     data : Write data
+    '''
     def send_data(self, data):
         epdconfig.digital_write(self.dc_pin, 1)
         epdconfig.digital_write(self.cs_pin, 0)
         epdconfig.spi_writebyte([data])
         epdconfig.digital_write(self.cs_pin, 1)
-        
+    
+	'''
+    function :Wait until the busy_pin goes LOW
+    parameter:
+    '''
     def ReadBusy(self):
         logger.debug("e-Paper busy")
         while(epdconfig.digital_read(self.busy_pin) == 1):      # 0: idle, 1: busy
             epdconfig.delay_ms(10)  
         logger.debug("e-Paper busy release")
-
+	
+	'''
+    function : Turn On Display
+    parameter:
+    '''
     def TurnOnDisplay(self):
         self.send_command(0x22) # Display Update Control
         self.send_data(0xC7)
         self.send_command(0x20) # Activate Display Update Sequence
         self.ReadBusy()
-        
+    
+	'''
+    function : Turn On Display Part
+    parameter:
+    '''
     def TurnOnDisplayPart(self):
         self.send_command(0x22) # Display Update Control
         self.send_data(0x0f)    # fast:0x0c, quality:0x0f, 0xcf
         self.send_command(0x20) # Activate Display Update Sequence
         self.ReadBusy()
-        
+    
+	'''
+    function : Set lut
+    parameter:
+        lut : lut data
+    '''    
     def Lut(self, lut):
         self.send_command(0x32)
         for i in range(0, 153):
             self.send_data(lut[i])
         self.ReadBusy()
     
+	'''
+    function : Send lut data and configuration
+    parameter:
+        lut : lut data 
+    '''
     def SetLut(self, lut):
         self.Lut(lut)
         self.send_command(0x3f)
@@ -148,7 +183,15 @@ class EPD:
         self.send_data(lut[157])	# VSL
         self.send_command(0x2c);    # VCOM
         self.send_data(lut[158])
-       
+    
+	'''
+    function : Setting the display window
+    parameter:
+        xstart : X-axis starting position
+        ystart : Y-axis starting position
+        xend : End position of X-axis
+        yend : End position of Y-axis
+    '''
     def SetWindow(self, x_start, y_start, x_end, y_end):
         self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
         # x point must be the multiple of 8 or the last 3 bits will be ignored
@@ -160,7 +203,13 @@ class EPD:
         self.send_data((y_start >> 8) & 0xFF)
         self.send_data(y_end & 0xFF)
         self.send_data((y_end >> 8) & 0xFF)
-
+	
+	'''
+    function : Set Cursor
+    parameter:
+        x : X-axis starting position
+        y : Y-axis starting position
+    '''
     def SetCursor(self, x, y):
         self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
         # x point must be the multiple of 8 or the last 3 bits will be ignored
@@ -169,7 +218,11 @@ class EPD:
         self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
         self.send_data(y & 0xFF)
         self.send_data((y >> 8) & 0xFF)
-       
+    
+	'''
+    function : Initialize the e-Paper register
+    parameter:
+    '''
     def init(self):
         if (epdconfig.module_init() != 0):
             return -1
@@ -205,7 +258,12 @@ class EPD:
         
         self.SetLut(self.lut_full_update)
         return 0
-
+	
+	'''
+	function : Display images
+    parameter:
+		image : Image data
+	'''
     def getbuffer(self, image):
         img = image
         imwidth, imheight = img.size
@@ -222,7 +280,11 @@ class EPD:
         buf = bytearray(img.tobytes('raw'))
         return buf
         
-        
+    '''
+    function : Sends the image buffer in RAM to e-Paper and displays
+    parameter:
+        image : Image data
+    '''
     def display(self, image):
         if self.width%8 == 0:
             linewidth = int(self.width/8)
@@ -234,7 +296,12 @@ class EPD:
             for i in range(0, linewidth):
                 self.send_data(image[i + j * linewidth])   
         self.TurnOnDisplay()
-        
+    
+	'''
+    function : Sends the image buffer in RAM to e-Paper and partial refresh
+    parameter:
+        image : Image data
+    '''  	
     def displayPartial(self, image):
         if self.width%8 == 0:
             linewidth = int(self.width/8)
@@ -274,7 +341,12 @@ class EPD:
             for i in range(0, linewidth):
                 self.send_data(image[i + j * linewidth])   
         self.TurnOnDisplayPart()
-
+	
+	'''
+    function : Refresh a base image
+    parameter:
+        image : Image data
+    '''
     def displayPartBaseImage(self, image):
         if self.width%8 == 0:
             linewidth = int(self.width/8)
@@ -292,6 +364,10 @@ class EPD:
                 self.send_data(image[i + j * linewidth])  
         self.TurnOnDisplay()
     
+    '''
+    function : Clear screen
+    parameter:
+    '''
     def Clear(self, color):
         if self.width%8 == 0:
             linewidth = int(self.width/8)
@@ -305,7 +381,11 @@ class EPD:
                 self.send_data(color)
                 
         self.TurnOnDisplay()
-
+		
+	'''
+    function : Enter sleep mode
+    parameter:
+    '''
     def sleep(self):
         self.send_command(0x10) #enter deep sleep
         self.send_data(0x01)

STM32/STM32-F103ZET6/User/e-Paper/EPD_2in13_V3.c

@@ -146,6 +146,10 @@ static void EPD_2in13_V3_TurnOnDisplay(void)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Turn On Display
+parameter:	
+******************************************************************************/
 static void EPD_2in13_V3_TurnOnDisplay_Partial(void)
 {
 	EPD_2in13_V3_SendCommand(0x22); // Display Update Control
@@ -154,6 +158,11 @@ static void EPD_2in13_V3_TurnOnDisplay_Partial(void)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Set lut
+parameter:	
+    lut :   lut data
+******************************************************************************/
 static void EPD_2IN13_V3_LUT(UBYTE *lut)
 {
 	UBYTE count;
@@ -163,6 +172,11 @@ static void EPD_2IN13_V3_LUT(UBYTE *lut)
 	EPD_2in13_V3_ReadBusy();
 }
 
+/******************************************************************************
+function :	Send lut data and configuration
+parameter:	
+    lut :   lut data
+******************************************************************************/
 static void EPD_2IN13_V2_LUT_by_host(UBYTE *lut)
 {
 	EPD_2IN13_V3_LUT((UBYTE *)lut);			//lut
@@ -181,6 +195,10 @@ static void EPD_2IN13_V2_LUT_by_host(UBYTE *lut)
 /******************************************************************************
 function :	Setting the display window
 parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
+	Xend : End position of X-axis
+	Yend : End position of Y-axis
 ******************************************************************************/
 static void EPD_2in13_V3_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend)
 {
@@ -198,6 +216,8 @@ static void EPD_2in13_V3_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWOR
 /******************************************************************************
 function :	Set Cursor
 parameter:
+	Xstart : X-axis starting position
+	Ystart : Y-axis starting position
 ******************************************************************************/
 static void EPD_2in13_V3_SetCursor(UWORD Xstart, UWORD Ystart)
 {
@@ -270,6 +290,7 @@ void EPD_2in13_V3_Clear(void)
 /******************************************************************************
 function :	Sends the image buffer in RAM to e-Paper and displays
 parameter:
+	image : Image data
 ******************************************************************************/
 void EPD_2in13_V3_Display(UBYTE *Image)
 {
@@ -287,10 +308,10 @@ void EPD_2in13_V3_Display(UBYTE *Image)
 	EPD_2in13_V3_TurnOnDisplay();	
 }
 
-
 /******************************************************************************
 function :	Refresh a base image
 parameter:
+	image : Image data	
 ******************************************************************************/
 void EPD_2in13_V3_Display_Base(UBYTE *Image)
 {  
@@ -316,6 +337,7 @@ void EPD_2in13_V3_Display_Base(UBYTE *Image)
 /******************************************************************************
 function :	Sends the image buffer in RAM to e-Paper and partial refresh
 parameter:
+	image : Image data
 ******************************************************************************/
 void EPD_2in13_V3_Display_Partial(UBYTE *Image)
 {