# HG changeset patch
# User Ethan Zonca <ez@ethanzonca.com>
# Date 2014-09-03 22:45:13
# Node ID 31284ec8ec2cb86cbc060749fbabcd5e1da468fa
# Parent  bdb054218ca31aadc00f2366e906fd24ddf99dd0

Added setpoint saving. Need to do modification checks to reduce number of writes.

diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -29,6 +29,9 @@ uint16_t k_p = 1;
 uint16_t k_i = 1;
 uint16_t k_d = 1;
 
+int16_t setpoint_brew = 0;
+int16_t setpoint_steam = 0;
+
 // State definition
 enum state {
     STATE_IDLE = 0,
@@ -57,6 +60,7 @@ void machine();
 void delay(__IO uint32_t nTime);
 void restore_settings();
 void save_settings();
+void save_setpoints();
 
 int main(void)
 {
@@ -307,6 +311,10 @@ uint16_t k_d = 1;*/
 #define EEPROM_ADDR_K_I			0x8080028
 #define EEPROM_ADDR_K_D			0x808002C
 
+#define EEPROM_ADDR_BREWTEMP		0x8080030
+#define EEPROM_ADDR_STEAMTEMP		0x8080034
+
+
 void save_settings()
 {
     DATA_EEPROM_Unlock();
@@ -317,8 +325,15 @@ void save_settings()
     DATA_EEPROM_ProgramWord(EEPROM_ADDR_K_I, k_i);
     DATA_EEPROM_ProgramWord(EEPROM_ADDR_K_D, k_d);
     DATA_EEPROM_Lock();
+}
+void save_setpoints()
+{
+    DATA_EEPROM_Unlock();
+    DATA_EEPROM_ProgramWord(EEPROM_ADDR_BREWTEMP, setpoint_brew);
+    DATA_EEPROM_ProgramWord(EEPROM_ADDR_STEAMTEMP, setpoint_steam); 
+    DATA_EEPROM_Lock();
+}
 
-}
 
 // TODO: Save/restore temperature setpoint settings
 void restore_settings()
@@ -339,6 +354,12 @@ void restore_settings()
     while(FLASH_GetStatus()==FLASH_BUSY);
     k_d = (*(__IO uint32_t*)EEPROM_ADDR_K_D);
     
+    while(FLASH_GetStatus()==FLASH_BUSY);
+    setpoint_brew = (*(__IO uint32_t*)EEPROM_ADDR_BREWTEMP);
+
+    while(FLASH_GetStatus()==FLASH_BUSY);
+    setpoint_steam = (*(__IO uint32_t*)EEPROM_ADDR_STEAMTEMP);    
+    
     DATA_EEPROM_Lock();
 }
 
@@ -591,16 +612,18 @@ void machine()
             ssd1306_drawlogo();
             draw_setpoint();
             pid_enabled = 1;
+	    setpoint = setpoint_brew;
 
             // Button handler
             if(SW_BTN_PRESSED) {
+		save_setpoints(); // TODO: Check for mod
                 state = STATE_IDLE;
             }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
-               setpoint++; 
+               setpoint_brew++; 
             }
-            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
-                setpoint--;
+            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_brew > 0) {
+                setpoint_brew--;
             }
 
 
@@ -620,16 +643,18 @@ void machine()
             ssd1306_drawlogo();
             draw_setpoint();
             pid_enabled = 1;
+	    setpoint = setpoint_brew;
 
             // Button handler
             if(SW_BTN_PRESSED) {
+		save_setpoints(); // TODO: Check for mod
                 state = STATE_IDLE;
             }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
-               setpoint++; 
+               setpoint_brew++; 
             }
-            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
-                setpoint--;
+            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_brew > 0) {
+                setpoint_brew--;
             }
 
 
@@ -647,19 +672,20 @@ void machine()
             ssd1306_drawlogo();
             draw_setpoint();
             pid_enabled = 1;
-
+	    setpoint = setpoint_steam;
+	    
             // Button handler
             if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+		save_setpoints(); // TODO: Check for mod
             }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
-               setpoint++; 
+               setpoint_steam++; 
             }
-            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
-                setpoint--;
+            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_steam > 0) {
+                setpoint_steam--;
             }
 
-
             // Event Handler
             if(temp >= setpoint) {
                 state = STATE_MAINTAIN_STEAM;
@@ -676,16 +702,18 @@ void machine()
             ssd1306_drawlogo();
             draw_setpoint();
             pid_enabled = 1;
+	    setpoint = setpoint_steam;
 
             // Button handler
             if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+		save_setpoints(); // TODO: Check for mod
             }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
-               setpoint++; 
+               setpoint_steam++; 
             }
-            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
-                setpoint--;
+            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_steam > 0) {
+                setpoint_steam--;
             }