Merge f369b6f207 into 342eb48a49

Allow AsyncPowerOn
* The display takes 16ms to power on During this time we can render the content and finally display it * The call is optional if we do not call it then the old code path is used * Moved the init to constructor
2024-01-13 21:19:13 +00:00 · 2024-01-13 19:11:22 +00:00 · 2024-01-13 19:08:52 +00:00 · 2024-01-13 18:24:19 +00:00 · 2024-01-13 18:24:04 +00:00 · 2024-01-13 18:23:45 +00:00
3 changed files with 14 additions and 4 deletions
--- a/src/Display.cpp
+++ b/src/Display.cpp
@ -31,6 +31,9 @@ WatchyDisplay::WatchyDisplay() :
  // Setup callback and SPI by default
  selectSPI(SPI, SPISettings(20000000, MSBFIRST, SPI_MODE0));
  setBusyCallback(busyCallback);
+}
+
+void WatchyDisplay::initWatchy() {
  // Watchy default initialization
  init(0, displayFullInit, 2, true);
 }
@ -419,11 +422,14 @@ void WatchyDisplay::_InitDisplay()
  _transfer(0x00);

  if (reduceBoosterTime) {
+    // SSD1675B controller datasheet
    _transferCommand(0x0C); // BOOSTER_SOFT_START_CONTROL
-    _transfer(0x80); // Needs to be at least 0x80
-    _transfer(0x00); // Aggresive lowest possible delay, out of spec (worked ok for me)
-    _transfer(0x00); // Aggresive lowest possible delay, out of spec (worked ok for me)
-    _transfer(0x80); // Undocumented booster delay, 0x80 seems ok
+    // Set the driving strength of GDR for all phases to maximun 0b111 -> 0xF
+    // Set the minimum off time of GDR to minimum 0x4 (values below sould be same)
+    _transfer(0xF4); // Phase1 Default value 0x8B
+    _transfer(0xF4); // Phase2 Default value 0x9C
+    _transfer(0xF4); // Phase3 Default value 0x96
+    _transfer(0x00); // Duration of phases, Default 0xF = 0b00 11 11 (40ms Phase 1/2, 10ms Phase 3)
  }

  _transferCommand(0x18); // Read built-in temperature sensor
--- a/src/Display.h
+++ b/src/Display.h
@ -35,6 +35,7 @@ class WatchyDisplay : public GxEPD2_EPD
    static const uint16_t partial_refresh_time = 500; // ms, e.g. 457282us
    // constructor
    WatchyDisplay();
+    void initWatchy();
    void setDarkBorder(bool darkBorder);
    void asyncPowerOn();
    void _PowerOnAsync();
--- a/src/Watchy.cpp
+++ b/src/Watchy.cpp
@ -21,6 +21,9 @@ void Watchy::init(String datetime) {
  Wire.begin(SDA, SCL);                         // init i2c
  RTC.init();

+  // Init the display since is almost sure we will use it
+  display.epd2.initWatchy();
+
  switch (wakeup_reason) {
  case ESP_SLEEP_WAKEUP_EXT0: // RTC Alarm
    RTC.read(currentTime);
Author	SHA1	Message	Date
DarkZeros	7e1eb82420	Merge `f369b6f207` into `342eb48a49`	2024-01-13 21:19:13 +00:00
Daniel Ansorregui	f369b6f207	Allow AsyncPowerOn * The display takes 16ms to power on During this time we can render the content and finally display it * The call is optional if we do not call it then the old code path is used * Moved the init to constructor	2024-01-13 19:11:22 +00:00
Daniel Ansorregui	8103df1499	Refactor DarkBorder * Allow to be changed dynamically between display updated.	2024-01-13 19:08:52 +00:00
Daniel Ansorregui	84c0cd106c	Set boosters configuration * Reduce the phase on times from 40ms->10ms * Increase the driving strength, this reduces a little the power usage as well * Reduces 220ms the display update -80ms the power on of the display -140ms the display partial update - Note: This may have side effects, but I saw none tested on Watchy v1.0, display should be same on other Watchy boards	2024-01-13 18:24:19 +00:00
Daniel Ansorregui	3ce125247d	No soft reset after reset * Avoid a redundant reset after a reset The display is always reset after a hard reset and there is no need to re-reset it	2024-01-13 18:24:04 +00:00
Daniel Ansorregui	f2c0c91a61	Refactor Display Init * It makes more sense to put it in the Display class * The reset should be 2ms, 10ms is worst case * Also there was a disable call based on display that makes more sense to put in the default boot switch statement	2024-01-13 18:23:45 +00:00
Daniel Ansorregui	2b21e50c2f	Move Display specifics * Move BusyCallback * Move constructor pins	2024-01-13 18:19:37 +00:00