use refresh() to refresh oled

bsp/stm32g030c8/pikascript/main.py

@@ -37,6 +37,10 @@ p1.x = 0
 p1.y = 0
 p2 = PikaPiZero.Point()
 
+mem = PikaStdLib.MemChecker()
+print('mem used max:')
+mem.max()
+
 pos = 0
 isUpdate = 1
 while True:
@@ -66,9 +70,16 @@ while True:
         oled.drawPoint(p0.x, p0.y)
         oled.drawPoint(p1.x, p1.y)
         oled.drawPoint(p2.x, p2.y)
+        oled.refresh()
     if right.read() == 1:
         pos = 0
         isUpdate = 1
+    if left.read() == 0:
+        pos = 1
+        isUpdate = 1
     if up.read() == 0:
         pos = 2
         isUpdate = 1
+    if down.read() == 0:
+        pos = 3
+        isUpdate = 1

package/PikaPiZero/PikaPiZero.py

@@ -38,5 +38,8 @@ class OLED(TinyObj):
     def clear():
         pass
 
+    def refresh():
+        pass
+
 class Point(TinyObj):
     pass

package/PikaPiZero/PikaPiZero_OLED.c

@@ -3,6 +3,9 @@
 
 void PikaPiZero_OLED_drawPoint(PikaObj *self, int x, int y){
     OLED_DrawPoint(x, y, 1);
+}
+
+void PikaPiZero_OLED_refresh(PikaObj *self){
     OLED_Refresh();
 }