From 1d602bd9a191c5e85cd08142792ffb5fc06b527a Mon Sep 17 00:00:00 2001
From: "Ben V. Brown" <Ralim@Ralimtek.com>
Date: Sun, 13 Aug 2017 12:48:16 +1000
Subject: [PATCH] Add display inversion for cooling

---
 workspace/ts100/inc/Oled.h  |  1 +
 workspace/ts100/src/Modes.c | 20 +++++++++++---------
 workspace/ts100/src/Oled.c  |  5 ++++-
 3 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/workspace/ts100/inc/Oled.h b/workspace/ts100/inc/Oled.h
index fd57f13b..62888581 100644
--- a/workspace/ts100/inc/Oled.h
+++ b/workspace/ts100/inc/Oled.h
@@ -17,6 +17,7 @@ void OLED_Sync();
 void Oled_DrawArea(u8 x0, u8 y0, u8 wide, u8 height, const u8* ptr);
 void Set_ShowPos(u8 x, u8 y);
 void Oled_DisplayFlip();
+void OLED_InvertBuffer();
 void GPIO_Init_OLED(void);
 void Init_Oled(uint8_t leftHanded);
 const u8* Data_Command(u8 len, const u8* ptr);
diff --git a/workspace/ts100/src/Modes.c b/workspace/ts100/src/Modes.c
index fae4bb82..9c87ed87 100644
--- a/workspace/ts100/src/Modes.c
+++ b/workspace/ts100/src/Modes.c
@@ -269,14 +269,14 @@ void ProcessUI() {
 			operatingMode = SOLDERING;
 			Oled_DisplayOn();
 			return;
-		} else if (systemSettings.sensitivity&& !InterruptMask) {
+		} else if (systemSettings.sensitivity && !InterruptMask) {
 			if (millis() - getLastMovement() < 1000) {//moved in the last second
 				operatingMode = SOLDERING; //Goto active mode again
 				Oled_DisplayOn();
 				return;
 			}
 		}
-		if (systemSettings.sensitivity ) {
+		if (systemSettings.sensitivity) {
 			//Check if we should shutdown
 			if ((millis() - getLastMovement()
 					> (systemSettings.ShutdownTime * 60000))
@@ -459,7 +459,7 @@ void DrawUI() {
 
 		//Now draw symbols
 		if (StatusFlags == 8)
-			OLED_DrawExtraFontChars(2,4);
+			OLED_DrawExtraFontChars(2, 4);
 		else {
 			OLED_DrawChar(' ', 4);
 		}
@@ -482,10 +482,10 @@ void DrawUI() {
 
 		if (systemSettings.displayTempInF) {
 			//OLED_DrawChar(SettingTempFChar, 3);
-			OLED_DrawExtraFontChars(0,3);
+			OLED_DrawExtraFontChars(0, 3);
 		} else {
 			//OLED_DrawChar(SettingTempCChar, 3);
-			OLED_DrawExtraFontChars(1,3);
+			OLED_DrawExtraFontChars(1, 3);
 		}
 		//Optionally draw the arrows, or draw the power instead
 		if (systemSettings.powerDisplay) {
@@ -731,11 +731,13 @@ void DrawUI() {
 		Clear_Screen();
 		OLED_DrawString(CoolingPromptString, 5);
 		temp = readIronTemp(0, 1, 0xFFFF);		//force temp re-reading
-		if (temp < 500 || ((millis() % 1000) > 500)
-				|| (!systemSettings.coolingTempBlink))
-			drawTemp(temp, 5, systemSettings.temperatureRounding);
-		if(temp>300)
+
+		drawTemp(temp, 5, systemSettings.temperatureRounding);
+		if (temp > 300)
 			Oled_DisplayOn();
+		if (temp > 500 && systemSettings.coolingTempBlink
+				&& (millis() % 600) > 300)
+			OLED_InvertBuffer();
 		break;
 	case UVLOWARN:
 		OLED_DrawString(UVLOWarningString, 8);
diff --git a/workspace/ts100/src/Oled.c b/workspace/ts100/src/Oled.c
index 91ce97c2..4e3bf159 100644
--- a/workspace/ts100/src/Oled.c
+++ b/workspace/ts100/src/Oled.c
@@ -136,7 +136,10 @@ void Oled_DrawArea(u8 x, u8 y, u8 wide, u8 height, const u8* ptr) {
 	}
 
 }
-
+void OLED_InvertBuffer() {
+	for (uint16_t i = 0; i < (2 * 96); i++)
+		displayBuffer[i] = ~displayBuffer[i];
+}
 /*******************************************************************************
  Function:GPIO_Init_OLED
  Description:Init the outputs as needed for the OLED (in this case the RST line)