diff --git a/src/epd/epd.c b/src/epd/epd.c
index c48d384..56e79a8 100644
--- a/src/epd/epd.c
+++ b/src/epd/epd.c
@@ -5,7 +5,7 @@
 
 /******************************************************************************/
 
-// 硬件参数
+// 纭欢鍙傛暟
 int scr_w;
 int scr_h;
 int scr_mode;
@@ -13,12 +13,12 @@ int line_bytes;
 int scr_padding;
 
 
-// 窗口参数
+// 绐楀彛鍙傛暟
 int win_w;
 int win_h;
 
 
-// x必须是8的倍数，且x2>x1, Y2>y1
+// x蹇呴』鏄�8鐨勫�嶆暟锛屼笖x2>x1, Y2>y1
 void epd_window(int x1, int y1, int x2, int y2)
 {
 	int tmp;
@@ -218,16 +218,11 @@ int epd_lut_size(void)
 	return i;
 }
 
-void epd_init(int w, int h, int mode)
+void epd_init(void)
 {
 	epd_hw_open();
 
-	scr_w = w;
-	scr_h = h;
-	scr_mode = mode;
-	line_bytes = (scr_w+7)>>3;
-	scr_padding = line_bytes*8-scr_w;
-	printk("epd_init: scr: %d x %d\n", scr_w, scr_h);
+	printk("epd_init: %dx%d\n", scr_w, scr_h);
 
 	epd_power(1);
 	epd_reset();
diff --git a/src/epd/epd.h b/src/epd/epd.h
index 1882338..7929e56 100644
--- a/src/epd/epd.h
+++ b/src/epd/epd.h
@@ -28,11 +28,12 @@ int sf_read(int addr, int len, u8 *buf);
 int selflash(int otp_boot);
 
 // epd_hw
-void epd_hw_init(u32 config0, u32 config1);
+void epd_hw_init(u32 config0, u32 config1, int w, int h, int mode);
 void epd_hw_open(void);
 void epd_hw_close(void);
 void epd_reset(void);
 void epd_wait(void);
+int  epd_busy(void);
 void epd_power(int on);
 
 void epd_cmd(int cmd);
@@ -46,8 +47,7 @@ void epd_read(u8 *data, int len);
 void epd_cmd_read(int cmd, u8 *data, int len);
 
 // epd_xxx
-
-void epd_init(int x, int y, int mode);
+void epd_init(void);
 void epd_load_lut(u8 *lut);
 void epd_update(int mode);
 void epd_sleep(void);
diff --git a/src/epd/epd_hw.c b/src/epd/epd_hw.c
index e37793d..014dd42 100644
--- a/src/epd/epd_hw.c
+++ b/src/epd/epd_hw.c
@@ -71,7 +71,7 @@ void delay_ms(int ms)
 /******************************************************************************/
 
 
-void epd_hw_init(u32 config0, u32 config1)
+void epd_hw_init(u32 config0, u32 config1, int w, int h, int mode)
 {
 	epio_pwr  = (config0>>24)&0xff;
 	epio_busy = (config0>>16)&0xff;
@@ -80,6 +80,12 @@ void epd_hw_init(u32 config0, u32 config1)
 	epio_cs   = (config1>>16)&0xff;
 	epio_clk  = (config1>> 8)&0xff;
 	epio_sdi  = (config1>> 0)&0xff;
+	
+	scr_w = w;
+	scr_h = h;
+	scr_mode = mode;
+	line_bytes = (scr_w+7)>>3;
+	scr_padding = line_bytes*8-scr_w;
 }
 
 void epd_hw_open(void)
@@ -147,6 +153,12 @@ void epd_wait(void)
 }
 
 
+int epd_busy(void)
+{
+	return EPD_BUSY();
+}
+
+
 void epd_power(int on)
 {
 	EPD_PWR(on);
diff --git a/src/user_custs1_impl.c b/src/user_custs1_impl.c
index 32f9492..52a6bbe 100644
--- a/src/user_custs1_impl.c
+++ b/src/user_custs1_impl.c
@@ -228,7 +228,7 @@ void clock_draw(int full)
 {
 	char tbuf[64];
 
-	epd_init(104, 212, EPD_BWR|ROTATE_3);
+	epd_init();
 
 	memset(fb_bw, 0xff, scr_h*line_bytes);
 	memset(fb_rr, 0x00, scr_h*line_bytes);
diff --git a/src/user_peripheral.c b/src/user_peripheral.c
index 3ef6fff..1682f1d 100644
--- a/src/user_peripheral.c
+++ b/src/user_peripheral.c
@@ -183,7 +183,7 @@ void user_app_init(void)
 
 	adv_count = 0;
 	fspi_config(0x00030605);
-	epd_hw_init(0x23200700, 0x05210006);  // for 2.13 board BW
+	epd_hw_init(0x23200700, 0x05210006, 104, 212, EPD_BWR|ROTATE_3);  // for 2.13 board BW
 
 	selflash(otp_boot);