fixed input data reading to be 2bit on whitestar

Author: mkalkbrenner

src/dmd_interface_whitestar.pio

@@ -29,9 +29,8 @@
 dotloop1:
     wait 0 gpio DOTCLK  ; falling edge
     wait 1 gpio DOTCLK  ; raising edge
-    in null 2           ; padding
     in pins 1           ; read pin data
-    in null 1
+    in null 1           ; right padding
     jmp x-- dotloop1
 
     mov x, y            ; load number of pixels
@@ -46,9 +45,8 @@ dotloop1:
 dotloop2:
     wait 0 gpio DOTCLK  ; falling edge
     wait 1 gpio DOTCLK  ; raising edge
-    in null 3           ; padding
+    in null 1           ; left padding
     in pins 1           ; read pin data
-    ;in null 1           ; multiply *2
     jmp x-- dotloop2
 
 

src/dmd_reader.c

@@ -584,7 +584,7 @@ bool init()
 
         lcd_width = 128;
         lcd_height = 32;
-        lcd_bitsperpixel = 2;                                    // it's only 3, but padding to 4 makes things easier
+        lcd_bitsperpixel = 2;
         lcd_pixelsperbyte = 8 / lcd_bitsperpixel;
         lcd_planesperframe = 2;                                  // in Whitestar, there's a MSB and a LSB plane
         lcd_lineoversampling = LINEOVERSAMPLING_WHITESTAR;       // in Whitestar each line is sent twice