diff --git a/bsp/imx6ull-artpi-smart/.config b/bsp/imx6ull-artpi-smart/.config
index 0ceda2da1438a54beebf4dd3d10ff7f367340f1f..0becda67dc9fea9886aff61802a783ecb8d83596 100644
--- a/bsp/imx6ull-artpi-smart/.config
+++ b/bsp/imx6ull-artpi-smart/.config
@@ -153,7 +153,7 @@ CONFIG_RT_USING_DEVICE_IPC=y
 CONFIG_RT_UNAMED_PIPE_NUMBER=64
 CONFIG_RT_PIPE_BUFSZ=512
 CONFIG_RT_USING_SYSTEM_WORKQUEUE=y
-CONFIG_RT_SYSTEM_WORKQUEUE_STACKSIZE=2048
+CONFIG_RT_SYSTEM_WORKQUEUE_STACKSIZE=4096
 CONFIG_RT_SYSTEM_WORKQUEUE_PRIORITY=23
 CONFIG_RT_USING_SERIAL=y
 # CONFIG_RT_SERIAL_USING_DMA is not set
@@ -179,9 +179,9 @@ CONFIG_RT_USING_RTC=y
 # CONFIG_RT_USING_ALARM is not set
 # CONFIG_RT_USING_SOFT_RTC is not set
 CONFIG_RT_USING_SDIO=y
-CONFIG_RT_SDIO_STACK_SIZE=512
+CONFIG_RT_SDIO_STACK_SIZE=4096
 CONFIG_RT_SDIO_THREAD_PRIORITY=15
-CONFIG_RT_MMCSD_STACK_SIZE=1024
+CONFIG_RT_MMCSD_STACK_SIZE=4096
 CONFIG_RT_MMCSD_THREAD_PREORITY=22
 CONFIG_RT_MMCSD_MAX_PARTITION=16
 # CONFIG_RT_SDIO_DEBUG is not set
diff --git a/bsp/imx6ull-artpi-smart/applications/filesystem.c b/bsp/imx6ull-artpi-smart/applications/filesystem.c
index bfca164886e3f2a1cd9c63ecb43109ea39abc0aa..4d850772690329cc355052a1ccce08f31bebf418 100644
--- a/bsp/imx6ull-artpi-smart/applications/filesystem.c
+++ b/bsp/imx6ull-artpi-smart/applications/filesystem.c
@@ -80,7 +80,7 @@ int sd_task(void)
 
     rt_thread_t tid;
     tid = rt_thread_create("sd_mount", sd_mount, RT_NULL,
-                           2048, RT_THREAD_PRIORITY_MAX - 2, 20);
+                           4096, RT_THREAD_PRIORITY_MAX - 2, 20);
     if (tid != RT_NULL)
     {
         rt_thread_startup(tid);
diff --git a/bsp/imx6ull-artpi-smart/applications/main.c b/bsp/imx6ull-artpi-smart/applications/main.c
index 43fead032c00c693c8df04378d5f5eff55d54ebb..a7afef2758e0b365734de447bf9c6b42436dc7d9 100644
--- a/bsp/imx6ull-artpi-smart/applications/main.c
+++ b/bsp/imx6ull-artpi-smart/applications/main.c
@@ -14,21 +14,9 @@
 #include <rtdevice.h>
 #include "drv_pin.h"
 
-#define LED_PIN     GET_PIN(5, 3)
-
 int main(void)
 {
-    rt_pin_mode(LED_PIN, PIN_MODE_OUTPUT);
-
     printf("hello rt-smart\n");
-
-    for(;;)
-    {
-        rt_pin_write(LED_PIN, PIN_HIGH);
-        rt_thread_mdelay(500);
-        rt_pin_write(LED_PIN, PIN_LOW);
-        rt_thread_mdelay(500);
-    }
     return 0;
 }
 
diff --git a/bsp/imx6ull-artpi-smart/drivers/drv_eth.c b/bsp/imx6ull-artpi-smart/drivers/drv_eth.c
index 993b4cbe0a59bcf0499d2352b6d51e5cad36f86a..74b3b5b1c2a3301cc38b87120cf0258888c1f825 100644
--- a/bsp/imx6ull-artpi-smart/drivers/drv_eth.c
+++ b/bsp/imx6ull-artpi-smart/drivers/drv_eth.c
@@ -547,7 +547,7 @@ static int imx6ul_eth_init(void)
         phy_link_tid = rt_thread_create(link_detect,
                                 phy_detect_thread_entry,
                                 &_imx6ul_eth_device[idx],
-                                512,
+                                4096,
                                 RT_THREAD_PRIORITY_MAX - 2,
                                 2);
         if (phy_link_tid != RT_NULL)
diff --git a/bsp/imx6ull-artpi-smart/drivers/drv_lcd.c b/bsp/imx6ull-artpi-smart/drivers/drv_lcd.c
index aac324f1d5d3d958a168ae3558654596fdfda77a..fcf8ea65232203c58ab60c359f2714f3705e3713 100644
--- a/bsp/imx6ull-artpi-smart/drivers/drv_lcd.c
+++ b/bsp/imx6ull-artpi-smart/drivers/drv_lcd.c
@@ -36,6 +36,7 @@ static rt_err_t imx6ull_elcd_init(rt_device_t device)
     RT_ASSERT(device != RT_NULL);
 
     elcd_dev = (struct imx6ull_lcd_bus *)device;
+    ELCDIF_Reset(elcd_dev->config->ELCDIF);
 
     pll_config.loopDivider = 32;
     pll_config.postDivider = 1;
diff --git a/bsp/imx6ull-artpi-smart/rtconfig.h b/bsp/imx6ull-artpi-smart/rtconfig.h
index 979e44fbf6c865277a2820092ec1fd38f565cdf3..16b2e2c296993346ebcbd9ad5be6201c7f47a7c0 100644
--- a/bsp/imx6ull-artpi-smart/rtconfig.h
+++ b/bsp/imx6ull-artpi-smart/rtconfig.h
@@ -111,7 +111,7 @@
 #define RT_UNAMED_PIPE_NUMBER 64
 #define RT_PIPE_BUFSZ 512
 #define RT_USING_SYSTEM_WORKQUEUE
-#define RT_SYSTEM_WORKQUEUE_STACKSIZE 2048
+#define RT_SYSTEM_WORKQUEUE_STACKSIZE 4096
 #define RT_SYSTEM_WORKQUEUE_PRIORITY 23
 #define RT_USING_SERIAL
 #define RT_SERIAL_RB_BUFSZ 64
@@ -123,9 +123,9 @@
 #define RT_USING_PWM
 #define RT_USING_RTC
 #define RT_USING_SDIO
-#define RT_SDIO_STACK_SIZE 512
+#define RT_SDIO_STACK_SIZE 4096
 #define RT_SDIO_THREAD_PRIORITY 15
-#define RT_MMCSD_STACK_SIZE 1024
+#define RT_MMCSD_STACK_SIZE 4096
 #define RT_MMCSD_THREAD_PREORITY 22
 #define RT_MMCSD_MAX_PARTITION 16
 #define RT_USING_SPI