eink display improvements

bin/install-eink.sh

@@ -0,0 +1,22 @@
+# You probably don't want to use this script, it programs a custom bootloader build onto a nrf52 board
+
+set -e 
+
+BOOTDIR=/home/kevinh/development/meshtastic/Adafruit_nRF52_Bootloader
+
+nrfjprog --eraseall -f nrf52
+
+# this generates an intel hex file that can be programmed into a NRF52 to tell the adafruit bootloader that the current app image is valid
+# Bootloader settings are at BOOTLOADER_SETTINGS (rw) : ORIGIN = 0xFF000, LENGTH = 0x1000
+# first 4 bytes should be 0x01 to indicate valid app image
+# second 4 bytes should be 0x00 to indicate no CRC required for image
+echo "01 00 00 00 00 00 00 00" | xxd -r -p - >/tmp/bootconf.bin
+srec_cat /tmp/bootconf.bin -binary -offset 0xff000 -output /tmp/bootconf.hex -intel   
+
+echo Generating merged hex file 
+mergehex -m $BOOTDIR/_build/build-ttgo_eink/ttgo_eink_bootloader-0.3.2-125-gf38f8f4-dirty_s140_6.1.1.hex .pio/build/eink/firmware.hex /tmp/bootconf.hex -o ttgo_eink_full.hex
+
+echo Telling bootloader app region is valid and telling CPU to run
+nrfjprog --program ttgo_eink_full.hex -f nrf52 --reset
+
+# nrfjprog --readuicr /tmp/uicr.hex; objdump -s /tmp/uicr.hex | less

src/graphics/EInkDisplay.cpp

@@ -102,8 +102,7 @@ void EInkDisplay::display(void)
     // at least one forceDisplay() keyframe.  This prevents flashing when we should the critical
     // bootscreen (that we want to look nice)
     if (lastDrawMsec)
-        if (forceDisplay(slowUpdateMsec)) // Show the first screen a few seconds after boot, then slower
-            slowUpdateMsec = 5 * 60 * 1000;
+        forceDisplay(slowUpdateMsec); // Show the first screen a few seconds after boot, then slower
 }
 
 // Send a command to the display (low level function)

src/graphics/EInkDisplay.h

@@ -14,9 +14,9 @@
  */
 class EInkDisplay : public OLEDDisplay
 {
-    /// How often should we update the display, at first we do an update 5 secs after boot,
+    /// How often should we update the display
     /// thereafter we do once per 5 minutes
-    uint32_t slowUpdateMsec = 5 * 1000;
+    uint32_t slowUpdateMsec = 5 * 60 * 1000;
     
   public:
     /* constructor
@@ -32,7 +32,7 @@ class EInkDisplay : public OLEDDisplay
      * 
      * @return true if we did draw the screen
      */
-    bool forceDisplay(uint32_t msecLimit = 2000);
+    bool forceDisplay(uint32_t msecLimit = 1000);
 
   protected:
     // the header size of the buffer used, e.g. for the SPI command header

src/graphics/Screen.cpp

@@ -681,7 +681,8 @@ int32_t Screen::runOnce()
 
     // Show boot screen for first 3 seconds, then switch to normal operation.
     static bool showingBootScreen = true;
-    if (showingBootScreen && (millis() > 3000)) {
+    if (showingBootScreen && (millis() > 5000)) {
+        DEBUG_MSG("Done with boot screen...\n");
         stopBootScreen();
         showingBootScreen = false;
     }
@@ -727,6 +728,10 @@ int32_t Screen::runOnce()
         return 0;
     }
 
+    // this must be before the frameState == FIXED check, because we always
+    // want to draw at least one FIXED frame before doing forceDisplay
+    ui.update();
+
     // Switch to a low framerate (to save CPU) when we are not in transition
     // but we should only call setTargetFPS when framestate changes, because
     // otherwise that breaks animations.
@@ -744,8 +749,6 @@ int32_t Screen::runOnce()
         // standard screen loop handling here
     }
 
-    ui.update();
-
     // DEBUG_MSG("want fps %d, fixed=%d\n", targetFramerate,
     // ui.getUiState()->frameState); If we are scrolling we need to be called
     // soon, otherwise just 1 fps (to save CPU) We also ask to be called twice
@@ -812,6 +815,8 @@ void Screen::setFrames()
 
     prevFrame = -1; // Force drawNodeInfo to pick a new node (because our list
                     // just changed)
+
+    setFastFramerate(); // Draw ASAP
 }
 
 void Screen::handleStartBluetoothPinScreen(uint32_t pin)
@@ -825,12 +830,13 @@ void Screen::handleStartBluetoothPinScreen(uint32_t pin)
 
     ui.disableAllIndicators();
     ui.setFrames(btFrames, 1);
+    setFastFramerate();
 }
 
 void Screen::handlePrint(const char *text)
 {
     DEBUG_MSG("Screen: %s", text);
-    if (!useDisplay)
+    if (!useDisplay || !showingNormalScreen)
         return;
 
     dispdev.print(text);
@@ -841,15 +847,20 @@ void Screen::handleOnPress()
     // If screen was off, just wake it, otherwise advance to next frame
     // If we are in a transition, the press must have bounced, drop it.
     if (ui.getUiState()->frameState == FIXED) {
-        setInterval(0); // redraw ASAP
         ui.nextFrame();
 
+        setFastFramerate();
+    }
+}
+
+void Screen::setFastFramerate()
+{
     DEBUG_MSG("Setting fast framerate\n");
 
     // We are about to start a transition so speed up fps
     targetFramerate = TRANSITION_FRAMERATE;
     ui.setTargetFPS(targetFramerate);
-    }
+    setInterval(0); // redraw ASAP
 }
 
 void DebugInfo::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
@@ -1101,8 +1112,6 @@ int Screen::handleStatusUpdate(const meshtastic::Status *arg)
     case STATUS_TYPE_NODE:
         if (nodeDB.updateTextMessage || nodeStatus->getLastNumTotal() != nodeStatus->getNumTotal()) {
             setFrames(); // Regen the list of screens
-            prevFrame = -1; // Force a GUI update
-            setInterval(0); // Update the screen right away
         }
         nodeDB.updateGUI = false;
         nodeDB.updateTextMessage = false;

src/graphics/Screen.h

@@ -219,6 +219,9 @@ class Screen : public concurrency::OSThread
     /// Rebuilds our list of frames (screens) to default ones.
     void setFrames();
 
+    /// Try to start drawing ASAP
+    void setFastFramerate();
+
     /// Called when debug screen is to be drawn, calls through to debugInfo.drawFrame.
     static void drawDebugInfoTrampoline(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y);