From 88de25f7a89b3645c6995d8c7d02980273a72350 Mon Sep 17 00:00:00 2001
From: Jan Michel <j.michel@gsi.de>
Date: Tue, 3 Jun 2014 15:38:58 +0200
Subject: [PATCH] latest firmware version

---
 Power/firmware/PowerSwitch.c | 38 +++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/Power/firmware/PowerSwitch.c b/Power/firmware/PowerSwitch.c
index 99a5db1..0c54c6f 100755
--- a/Power/firmware/PowerSwitch.c
+++ b/Power/firmware/PowerSwitch.c
@@ -100,7 +100,7 @@ void switchoutput(uint8_t chan, int8_t to) {
 	output_error  &= ~(1<<chan);
 	}
 
-  if(to >= -1) {settings_changed = 3;}
+  if(to >= -1) {settings_changed |= 4;}
   
   uint8_t en1 = ((output_enable & 1) && !(output_error & 1))?0:1;
   uint8_t en2 = ((output_enable & 2) && !(output_error & 2))?0:1;
@@ -226,7 +226,7 @@ ISR(USART1_RX_vect) {
           limit[rxbuf[2]] = lim;
           }
         send_answer_hex(limit[rxbuf[2]]); 
-        settings_changed = rxbuf[2]+1;        
+        settings_changed |= rxbuf[2]+1;        
         }
       else {
         forward_msg(7);
@@ -238,6 +238,8 @@ ISR(USART1_RX_vect) {
     
 } 
 
+#define EEPROM_DIS() while(EECR & (1<<EEPE)); EEARL = 0
+
 void eeprom_write(uint8_t addr, uint8_t data){
   while(EECR & (1<<EEPE));
   EECR = (0<<EEPM0);
@@ -303,19 +305,23 @@ __attribute__((naked)) int main(void) {
   
   
   while(1) {
-    if (settings_changed == 1) {
-      settings_changed = 0;
-      eeprom_write(0x10,limit[0]&0xFF);
-      eeprom_write(0x11,(limit[0]>>8)&0xFF);
-      }
-    if (settings_changed == 2) {
-      settings_changed = 0;
-      eeprom_write(0x12,limit[1]&0xFF);
-      eeprom_write(0x13,(limit[1]>>8)&0xFF);
-      }
-    if (settings_changed == 3) {
-      settings_changed = 0;
-      eeprom_write(0x14,output_enable);
-      }
+	_delay_ms(3000);  
+	if(settings_changed != 0) {
+		if (settings_changed & 1) {
+			settings_changed &= ~1;
+			eeprom_write(0x10,limit[0]&0xFF);
+			eeprom_write(0x11,(limit[0]>>8)&0xFF);
+		}
+		if (settings_changed & 2) {
+			settings_changed &= ~2;
+			eeprom_write(0x12,limit[1]&0xFF);
+			eeprom_write(0x13,(limit[1]>>8)&0xFF);
+		}
+		if (settings_changed & 4) {
+			settings_changed &= ~4;
+			eeprom_write(0x14,output_enable);
+		}
+		EEPROM_DIS();
+		}
     }
   }
\ No newline at end of file
-- 
2.43.0