Fix mpr121 touch for tinypico

deshipu · deshipu · commit c1cee39b5537 · 2021-01-03T00:10:15.000+01:00
diff --git a/tinypicost7789/freeze/ugame.py b/tinypicost7789/freeze/ugame.py
@@ -5,6 +5,7 @@
 
 from machine import SPI, I2C, Pin
 import st7789
+import struct
 
 
 K_DOWN = 1 << 3
@@ -36,16 +37,17 @@ def __init__(self, i2c, address=0x5a):
         self._address = address
         for register, value in (
             (0x80, b'\x63'), # reset
-            (0x53, b'\x00'), # stop mode, reset config
+            (0x5e, b'\x00'), # stop mode, reset config
             (0x2b, b'\x01\x01\x0e\x00\x01\x05\x01\x00\x00\x00\x00'),
             (0x5b, b'\x00\x10\x20'), # debounce, config1, config2
-            (0x53, b'\x8f'), # exit stop mode
+            (0x5e, b'\x8f'), # exit stop mode
         ):
             self._i2c.writeto_mem(self._address, register, value)
 
     def get_pressed(self):
-        return int.from_bytes(
-            self._i2c.readfrom_mem(self._address, 0x00, 2), 'big')
+        buffer = self._i2c.readfrom_mem(self._address, 0x00, 2)
+        mask = struct.unpack('<H', buffer)[0]
+        return mask
 
 
 spi = SPI(2, baudrate=40000000, sck=Pin(18), mosi=Pin(23))
