some thing changes

Author: USTHzhanglu

kflash_gui/kflash_gui.conf

@@ -1,7 +1,7 @@
 {
     "files": [
         [
-            "C:/Users/Lithromantic/Desktop/maixpy/bin/maixpy_v0.6.2_44_gd9dc6c58c_minimum_with_ide_support.bin",
+            "F:/github/Maixpy/bin/maixpy_v0.6.2_15_g0118a9a77.bin",
             0,
             true,
             true

md/tfcard.md

@@ -0,0 +1,25 @@
+
+try:
+    import os, Maix, lcd, image,gc,sys
+    gc.collect()
+    lcd.init()
+    loading = image.Image(size=(lcd.width(), lcd.height()))
+    loading.draw_rectangle((0, 0, lcd.width(), lcd.height()), fill=True, color=(255, 0, 0))
+    info = "Welcome to MaixPy"
+    loading.draw_string(int(lcd.width()//2 - len(info) * 5), (lcd.height())//4, info, color=(255, 255, 255), scale=2, mono_space=0)
+    v = sys.implementation.version
+    vers = 'V{}.{}.{} : maixpy.sipeed.com'.format(v[0],v[1],v[2])
+    loading.draw_string(int(lcd.width()//2 - len(info) * 6), (lcd.height())//3 + 20, vers, color=(255, 255, 255), scale=1, mono_space=1)
+    tf = None
+    try:
+            os.listdir("/sd/.")
+    except Exception as e:
+        tf ="SDcard not mount,using flash!"
+        loading.draw_string(int(lcd.width()//2 - len(info) * 7), (lcd.height())//2 + 10, tf, color=(255, 255, 255), scale=1, mono_space=1)
+    if not tf:
+        tf ="SDcard is mount,using sd!"
+        loading.draw_string(int(lcd.width()//2 - len(info) * 6), (lcd.height())//2 + 10, tf, color=(255, 255, 255), scale=1, mono_space=1)
+    lcd.display(loading)
+finally:
+    del loading, v, info, vers
+    gc.collect()