Fixed partial update with deep sleep on Inkplate6 and Inkplate5V2.

Author: BornaBiro

examples/Inkplate5/Advanced/DeepSleep/Inkplate5_Partial_Update_With_Deep_Sleep/Inkplate5_Partial_Update_With_Deep_Sleep.ino

@@ -76,7 +76,7 @@ void createScreen()
 {
     display.setTextSize(3);           // Set font to be scaled up three times
     display.setCursor(35, 100);
-    display.print("Inkplate 7 partial update with deep sleep example");
+    display.print("Inkplate 5 partial update with deep sleep example");
     display.setCursor(200, 250);      // Set text cursor @ X = 200, Y = 250
     display.print("First variable:"); // Write first variable to buffer
     display.print(counter, DEC);

src/Inkplate.cpp

@@ -85,7 +85,7 @@ void Inkplate::display(bool leaveOn)
  */
 void Inkplate::preloadScreen()
 {
-    memcpy(DMemoryNew, _partial, 60000);
+    memcpy(DMemoryNew, _partial, E_INK_WIDTH * E_INK_HEIGHT / 8);
 }
 
 /**

src/boards/Inkplate5V2.cpp

@@ -439,6 +439,15 @@ uint32_t Inkplate::partialUpdate(bool _forced, bool leaveOn)
 
     uint32_t changeCount = 0;
 
+    _dmaI2SDesc->size = (E_INK_WIDTH / 4) + 16;
+    _dmaI2SDesc->length = (E_INK_WIDTH / 4) + 16;
+    _dmaI2SDesc->sosf = 1;
+    _dmaI2SDesc->owner = 1;
+    _dmaI2SDesc->qe.stqe_next = 0;
+    _dmaI2SDesc->eof = 1;
+    _dmaI2SDesc->buf = _dmaLineBuffer;
+    _dmaI2SDesc->offset = 0;
+
     for (int i = 0; i < E_INK_HEIGHT; ++i)
     {
         for (int j = 0; j < E_INK_WIDTH / 8; ++j)

src/boards/Inkplate6.cpp

@@ -426,6 +426,15 @@ uint32_t Inkplate::partialUpdate(bool _forced, bool leaveOn)
 
     uint32_t changeCount = 0;
 
+    _dmaI2SDesc->size = (E_INK_WIDTH / 4) + 16;
+    _dmaI2SDesc->length = (E_INK_WIDTH / 4) + 16;
+    _dmaI2SDesc->sosf = 1;
+    _dmaI2SDesc->owner = 1;
+    _dmaI2SDesc->qe.stqe_next = 0;
+    _dmaI2SDesc->eof = 1;
+    _dmaI2SDesc->buf = _dmaLineBuffer;
+    _dmaI2SDesc->offset = 0;
+
     for (int i = 0; i < E_INK_HEIGHT; ++i)
     {
         for (int j = 0; j < E_INK_WIDTH / 8; ++j)