diff --git a/firmware/target/arm/rk27xx/debug-rk27xx.c b/firmware/target/arm/rk27xx/debug-rk27xx.c
index 5c2d356..994ae78 100644
--- a/firmware/target/arm/rk27xx/debug-rk27xx.c
+++ b/firmware/target/arm/rk27xx/debug-rk27xx.c
@@ -43,6 +43,8 @@
 extern unsigned long sd_debug_time_rd;
 extern unsigned long sd_debug_time_wr;
 
+extern int updating, update_count, intr_count;
+
 bool dbg_hw_info(void)
 {
     int line;
@@ -65,6 +67,13 @@ bool dbg_hw_info(void)
         line++;
         _DEBUG_PRINTF("sd_debug_time_rd: %d", sd_debug_time_rd);
         _DEBUG_PRINTF("sd_debug_time_wr: %d", sd_debug_time_wr);
+
+        _DEBUG_PRINTF("updating: %d", updating);
+        _DEBUG_PRINTF("intr_count: %d", intr_count);
+        _DEBUG_PRINTF("update_count: %d", update_count);
+        _DEBUG_PRINTF("diff: %d", update_count - intr_count);
+
+
         lcd_update(); 
         switch(button_get_w_tmo(HZ/20))
         {
diff --git a/firmware/target/arm/rk27xx/lcdif-rk27xx.c b/firmware/target/arm/rk27xx/lcdif-rk27xx.c
index fd683c4..f1f950f 100644
--- a/firmware/target/arm/rk27xx/lcdif-rk27xx.c
+++ b/firmware/target/arm/rk27xx/lcdif-rk27xx.c
@@ -26,6 +26,18 @@
 #include "cpu.h"
 #include "lcdif-rk27xx.h"
 
+int updating = 0;
+int intr_count = 0;
+int update_count = 0;
+
+void INT_DWDMA(void)
+{
+    DWDMA_CLEAR_TFR |= 1;
+    
+    updating = 0;
+    intr_count++;
+}
+
 
 unsigned int lcd_data_transform(unsigned int data)
 {
@@ -127,6 +139,8 @@ static void dwdma_init(void)
     DWDMA_DMA_CHEN = 0xf00;
     DWDMA_CLEAR_BLOCK = 0x0f;
     DWDMA_DMA_CFG = 1; /* global enable */
+    INTC_IECR |= (1<<25);
+    INTC_IMR |= (1<<25);
 }
 
 /* dwdma linked list struct */
@@ -157,6 +171,7 @@ static void llp_setup(void *src, void *dst, struct llp_t *llp, uint32_t size)
                  (2<<4)  |
                  (3<<11) |
                  (3<<14) |
+        1 |
                  (1<<27) |
                  (1<<28);
 }
@@ -176,6 +191,7 @@ static void dwdma_start(uint8_t ch, struct llp_t *llp, uint8_t handshake)
                       (1<<23) |
                       (1<<17) |
                       (2<<1)  |
+        1 |
                       (2<<4)  |
                       (3<<11) |
                       (3<<14) |
@@ -187,7 +203,7 @@ static void dwdma_start(uint8_t ch, struct llp_t *llp, uint8_t handshake)
    DWDMA_CFG_H(ch) = (handshake<<11)|(1<<2);
    DWDMA_SGR(ch) = (13<<20);
    DWDMA_DMA_CHEN = (0x101<<ch);
-
+   DWDMA_MASK_TFR = (1 << (ch+8)) | (1<<ch);
 }
 
 
@@ -200,7 +216,7 @@ void create_llp(void)
         llp_setup((void *)FBADDR(0,i), (void*)(&LCD_BUFF+((i%4)*LCD_WIDTH/2)), &(scr_llp[i]), LCD_WIDTH/2);
 
     /* this seems to work with 2,3 and 4 dunno why is this */
-    llp_end(&scr_llp[LCD_HEIGHT-4]);
+    llp_end(&scr_llp[LCD_HEIGHT-1]);
 }
 
 void lcdif_init(enum lcdif_mode_t mode)
@@ -213,6 +229,7 @@ void lcdif_init(enum lcdif_mode_t mode)
 
 void lcd_update()
 {
+    update_count++;
     lcd_set_gram_area(0, 0, LCD_WIDTH, LCD_HEIGHT);
     lcdctrl_bypass(0);
 
@@ -223,5 +240,5 @@ void lcd_update()
 
     MCU_CTRL=(1<<1)|(1<<2)|(1<<5);
 
-    while (DWDMA_CTL_L(0) & (1<<27));
+    //while (DWDMA_CTL_L(0) & (1<<27));
 }