Update display init for tinypico explorer shield

Author: deshipu

tinypicost7789/freeze/st7789.py

@@ -27,7 +27,7 @@ def reset(self):
             (b'\xb2', # PORCTRL
              b'\x0c\x0c\x00\x33\x33'),
             (b'\xb7', b'\x35'), # GCTRL
-            (b'\xbb', b'\x28'), # VCOMS
+            (b'\xbb', b'\x38'), # VCOMS
             (b'\xc0', b'\x2c'), # LCMCTRL
             (b'\xc2', b'\x01\xff'), # VDVVRHEN
             (b'\xc3', b'\x12'), # VRHS

tinypicost7789/freeze/ugame.py

@@ -50,7 +50,7 @@ def get_pressed(self):
         return mask
 
 
-spi = SPI(2, baudrate=40_000_000, sck=Pin(18), mosi=Pin(23))
+spi = SPI(2, baudrate=80_000_000, sck=Pin(18), mosi=Pin(23))
 display = st7789.Display(spi, Pin(4, Pin.OUT), Pin(14, Pin.OUT))
 display.clear()
 i2c = I2C(sda=Pin(21), scl=Pin(22))