adding pyportal titano board definition

Author: brentru

ports/atmel-samd/boards/pyportal_titano/board.c

@@ -39,28 +39,44 @@
 #define DELAY 0x80
 
 uint8_t display_init_sequence[] = {
-    0x01, 2, 0x80, 0x64, // swreset
-    0xB9, 5, 0x83, 0xFF, 0x83, 0x57, 0xFF,
-    0xB3, 5, 0x04, 0x80, 0x00, 0x06, 0x06,
-    0xB6, 2, 0x01, 0x25,
-    0xCC, 2, 0x01, 0x05,
-    0xB1, 7,
-        0x06, 0x00, 0x15, 0x1C, 0x1C, 0x83, 0xAA,
-    0xC0, 7,
-        0x06, 0x50, 0x50, 0x01, 0x3C, 0x1E, 0x08,
-    0xB4, 8,
-        0x07, 0x02, 0x40, 0x00, 0x2A, 0x2A, 0x0D, 0x78,
+    0x01, DELAY, 100/5,                  // Soft reset, then delay 10 ms
+    0xB9, 3, 0xFF, 0x83, 0x57,          // Extension command set
+    0xFF, DELAY, 500/5,
+    0xB3, 4, 0x80, 0x00, 0x06, 0x06,    // 0x80 enables SDO pin (0x00 disables)
+    0xB6, 2, 0x01, 0x25,                // -1.52V
+    0xB0, 1, 0x68,                      // Normal mode 70Hz, Idle mode 55 Hz
+    0xCC, 1, 0x05,
+    0xB1, 6,
+      0x00,                            // Not deep standby
+      0x15,                            // BT
+      0x1C,                            // VSPR
+      0x1C,                            // VSNR
+      0x83,                           // AP
+      0xAA,                           // FS
+    0xC0, 6,
+      0x50,                      // OPON normal
+      0x50,                      // OPON idle
+      0x01,                      // STBA
+      0x3C,                      // STBA
+      0x1E,                      // STBA
+      0x08,                      // GEN
+    0xB4, 7,
+      0x02,                      // NW 0x02
+      0x40,                      // RTN
+      0x00,                      // DIV
+      0x2A,                      // DUM
+      0x2A,                      // DUM
+      0x0D,                      // GDON
+      0x78,                      // GDOFF
     0xE0, 34,
       0x02, 0x0A, 0x11, 0x1d, 0x23, 0x35, 0x41, 0x4b, 0x4b,
       0x42, 0x3A, 0x27, 0x1B, 0x08, 0x09, 0x03, 0x02, 0x0A,
       0x11, 0x1d, 0x23, 0x35, 0x41, 0x4b, 0x4b, 0x42, 0x3A,
       0x27, 0x1B, 0x08, 0x09, 0x03, 0x00, 0x01,
     0x3a, 1, 0x55,
-    0x36, 1, 0xC0,
-    0x35, 1, 0x00, 
-    0x44, 2, 0x00, 0x02,
-    0x11, 0x80 + 150/5, // Exit Sleep, then delay 150 ms
-    0x29, 0x80 +  50/5
+    0x36, 1, 0x00,
+    0x11, DELAY, 150/5, // Exit Sleep, then delay 150 ms
+    0x29, DELAY, 50/5
 };
 
 void board_init(void) {
@@ -81,11 +97,11 @@ void board_init(void) {
     display->base.type = &displayio_display_type;
     common_hal_displayio_display_construct(display,
         bus,
-        320, // Width
-        480, // Height
+        480, // Width
+        320, // Height
         0, // column start
         0, // row start
-        0, // rotation
+        270, // rotation
         16, // Color depth
         false, // grayscale
         false, // pixels_in_byte_share_row (unused for depths > 8)