Enable 50 MHz SPI on screens

Author: PaintYourDragon

M4_Eyes/M4_Eyes.ino

@@ -172,13 +172,10 @@ void setup() {
   }
 
   yield();
-  uint8_t e, rtna = 0x01; // Screen refresh rate control (datasheet 9.2.18, FRCTRL2)
   // Initialize displays
   eye[0].display = arcada._display;
-  eye[0].display->sendCommand(0xC6, &rtna, 1);
   if (NUM_EYES > 1) {
     eye[1].display = arcada.display2;  
-    eye[1].display->sendCommand(0xC6, &rtna, 1);
   }
 
   yield();
@@ -203,7 +200,10 @@ void setup() {
 
   // Initialize DMAs
   yield();
+  uint8_t e, rtna = 0x01; // Screen refresh rate control (datasheet 9.2.18, FRCTRL2)
   for(e=0; e<NUM_EYES; e++) {
+    eye[e].spi->setClockSource(DISPLAY_CLKSRC);
+    eye[e].display->sendCommand(0xC6, &rtna, 1);
     eye[e].display->fillScreen(0);
     eye[e].dma.allocate();
     eye[e].dma.setTrigger(eye[e].spi->getDMAC_ID_TX());