diff --git a/inc/lib_epaper_2in9.h b/inc/lib_epaper_2in9.h
index 0cf6916..35f8c8e 100644
--- a/inc/lib_epaper_2in9.h
+++ b/inc/lib_epaper_2in9.h
@@ -2,6 +2,9 @@
 #define LIB_EPAPER_2IN9_H_
 
 #include "LPC8xx.h"
+#include "swm.h"
+#include "spi.h"
+#include "syscon.h"
 
 // Pin definition - à modifier
 #define SPIBAUD 	115200
@@ -47,17 +50,17 @@
 void _epaper_spiinit();
 void _epaper_spitransfer(uint8_t data);
 uint8_t _epaper_digitalread(uint8_t pin);
-uint8_t _epaper_digitalwrite(uint8_t pin, uint8_t value);
+void _epaper_digitalwrite(uint8_t pin, uint8_t value);
 void _epaper_setlut(const uint8_t* lut);
-void _epaper_setmemoryarea(uint8_t x_start, uint8_t y_start, uint8_t x_stop, uint8_t y_stop);
-void _epaper_setmemorypointer(uint8_t x, uint8_t y);
+void _epaper_setmemoryarea(uint16_t x_start, uint16_t y_start, uint16_t x_stop, uint16_t y_stop);
+void _epaper_setmemorypointer(uint16_t x, uint16_t y);
 
 // User functions
 uint8_t epaper_init();
 void epaper_sendcommand(uint8_t command);
 void epaper_senddata(uint8_t data);
 void epaper_reset();
-void epaper_setframe(uint8_t* image_buffer, uint8_t x, uint8_t y, uint8_t w, uint8_t h);
+void epaper_setframe(uint8_t* image_buffer, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
 void epaper_clearframe(uint8_t color);
 void epaper_display();
 void epaper_sleep();
diff --git a/src/lib_epaper_2in9.c b/src/lib_epaper_2in9.c
index c2043e9..703738f 100644
--- a/src/lib_epaper_2in9.c
+++ b/src/lib_epaper_2in9.c
@@ -1,5 +1,23 @@
 #include "lib_epaper_2in9.h"
 
+
+// Constants
+const uint8_t lut_full_update[] = {
+    0x50, 0xAA, 0x55, 0xAA, 0x11, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0xFF, 0xFF, 0x1F, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+const uint8_t lut_partial_update[] = {
+    0x10, 0x18, 0x18, 0x08, 0x18, 0x18,
+    0x08, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x13, 0x14, 0x44, 0x12,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
 // Basic functions
 void _epaper_spiinit()
 {
@@ -48,7 +66,7 @@ uint8_t _epaper_digitalread(uint8_t pin)
 	return LPC_GPIO_PORT->B0[pin];
 }
 
-uint8_t _epaper_digitalwrite(uint8_t pin, uint8_t value)
+void _epaper_digitalwrite(uint8_t pin, uint8_t value)
 {
 	LPC_GPIO_PORT->B0[pin] = value;
 }
@@ -58,24 +76,24 @@ void _epaper_setlut(const uint8_t* lut)
 	epaper_sendcommand(WRITE_LUT_REGISTER);
 	/* the length of look-up table is 30 bytes */
 	for (int i = 0; i < 30; i++) {
-		SendData(lut[i]);
+		epaper_senddata(lut[i]);
 	}
 }
 
-void _epaper_setmemoryarea(uint8_t x_start, uint8_t y_start, uint8_t x_stop, uint8_t y_stop)
+void _epaper_setmemoryarea(uint16_t x_start, uint16_t y_start, uint16_t x_stop, uint16_t y_stop)
 {
 	epaper_sendcommand(SET_RAM_X_ADDRESS_START_END_POSITION);
 	/* x point must be the multiple of 8 or the last 3 bits will be ignored */
 	epaper_senddata((x_start >> 3) & 0xFF);
-	epaper_senddata((x_end >> 3) & 0xFF);
+	epaper_senddata((x_stop >> 3) & 0xFF);
 	epaper_sendcommand(SET_RAM_Y_ADDRESS_START_END_POSITION);
 	epaper_senddata(y_start & 0xFF);
 	epaper_senddata((y_start >> 8) & 0xFF);
-	epaper_senddata(y_end & 0xFF);
-	epaper_senddata((y_end >> 8) & 0xFF);
+	epaper_senddata(y_stop & 0xFF);
+	epaper_senddata((y_stop >> 8) & 0xFF);
 }
 
-void _epaper_setmemorypointer(uint8_t x, uint8_t y)
+void _epaper_setmemorypointer(uint16_t x, uint16_t y)
 {
 	epaper_sendcommand(SET_RAM_X_ADDRESS_COUNTER);
 	/* x point must be the multiple of 8 or the last 3 bits will be ignored */
@@ -129,7 +147,7 @@ void epaper_sendcommand(uint8_t command)
 void epaper_senddata(uint8_t data)
 {
 	_epaper_digitalwrite(DC_PIN, 1);
-	_epaper_spitransfer(command);
+	_epaper_spitransfer(data);
 }
 
 void epaper_reset()
@@ -140,30 +158,25 @@ void epaper_reset()
 	for(uint32_t i = 0; i<10000; i++);
 }
 
-void epaper_setframe(uint8_t* image_buffer, uint8_t x, uint8_t y, uint8_t w, uint8_t h)
+void epaper_setframe(uint8_t* image_buffer, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
 {
 	int x_end;
 	int y_end;
 
-	if (
-		image_buffer == NULL ||
-		x < 0 || image_width < 0 ||
-		y < 0 || image_height < 0
-	) {
-		return;
-	}
+	if (image_buffer == 0 || x < 0 || w < 0 || y < 0 || h < 0) return;
+
 	/* x point must be the multiple of 8 or the last 3 bits will be ignored */
 	x &= 0xF8;
-	image_width &= 0xF8;
-	if (x + image_width >= this->width) {
-		x_end = this->width - 1;
+	w &= 0xF8;
+	if (x + w >= EPD_WIDTH) {
+		x_end = EPD_WIDTH - 1;
 	} else {
-		x_end = x + image_width - 1;
+		x_end = x + EPD_WIDTH - 1;
 	}
-	if (y + image_height >= this->height) {
-		y_end = this->height - 1;
+	if (y + h >= EPD_HEIGHT) {
+		y_end = EPD_HEIGHT - 1;
 	} else {
-		y_end = y + image_height - 1;
+		y_end = y + EPD_HEIGHT - 1;
 	}
 	_epaper_setmemoryarea(x, y, x_end, y_end);
 	_epaper_setmemorypointer(x, y);
@@ -171,7 +184,7 @@ void epaper_setframe(uint8_t* image_buffer, uint8_t x, uint8_t y, uint8_t w, uin
 	/* send the image data */
 	for (int j = 0; j < y_end - y + 1; j++) {
 		for (int i = 0; i < (x_end - x + 1) / 8; i++) {
-			SendData(image_buffer[i + j * (image_width / 8)]);
+			epaper_senddata(image_buffer[i + j * (w / 8)]);
 		}
 	}
 }
@@ -182,7 +195,7 @@ void epaper_clearframe(uint8_t color)
 	_epaper_setmemorypointer(0, 0);
 	epaper_sendcommand(WRITE_RAM);
 	/* send the color data */
-	for (int i = 0; i < this->width / 8 * this->height; i++) {
+	for (int i = 0; i < EPD_WIDTH / 8 * EPD_HEIGHT; i++) {
 		epaper_senddata(color);
 	}
 }
@@ -202,19 +215,3 @@ void epaper_sleep()
 	epaper_sendcommand(DEEP_SLEEP_MODE);
 	epaper_senddata(0x01);
 }
-
-const uint8_t lut_full_update[] = {
-    0x50, 0xAA, 0x55, 0xAA, 0x11, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0xFF, 0xFF, 0x1F, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-const uint8_t lut_partial_update[] = {
-    0x10, 0x18, 0x18, 0x08, 0x18, 0x18,
-    0x08, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x13, 0x14, 0x44, 0x12,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
diff --git a/src/main.c b/src/main.c
index fea7393..bdd862d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,10 +8,6 @@
 #include "lib_ENS_II1_lcd.h"
 #include "lib_epaper_2in9.h"
 
-
-#define SCK_PIN 		P0_19
-
-
 //
 // Main routine
 //
@@ -24,10 +20,13 @@ int main(void) {
 	init_lcd();
 	lcd_puts("Test e-paper");
 	lcd_position(1, 0);
-	lcd_puts("Init ok");
+	lcd_puts("Initialisation ok");
 
 	while(1) {
-
+		for(int i = 100000; i>0; i--);
+		epaper_clearframe(0xFF);
+		for(int i = 100000; i>0; i--);
+		epaper_clearframe(0x88);
 	};
 
 } // end of main