From a6d6ddef708bd8d085e2b66aceda37e0895abf88 Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Tue, 1 Nov 2016 14:51:27 +0100
Subject: [PATCH] generate serial output for trend

---
 Makefile |  3 +++
 main.c   | 10 +++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 8fe8272..71b5d27 100644
--- a/Makefile
+++ b/Makefile
@@ -11,3 +11,6 @@ flash: main.hex
 
 serial:
 	microcom -p $(SERIAL) -s 9600
+
+trend:
+	microcom -p $(SERIAL) -s 9600 | trend -geometry 800x200 -v -c1a -c2a -L V,A - 600x1
diff --git a/main.c b/main.c
index fc797a6..b79f191 100644
--- a/main.c
+++ b/main.c
@@ -7,7 +7,7 @@
 #define UBRR_VALUE (((F_CPU/(USART_BAUDRATE*16UL)))-1)
 
 // this will output only changes on serial
-#define SERIAL_CHANGES 1
+#define SERIAL_CHANGES 0
 
 void serial_init(){
 	// initialize USART (must call this before using it)
@@ -30,7 +30,7 @@ void serial_string(const char* s){
 
 void serial_break(){
 	serial_send(10); // new line 
-	serial_send(13); // carriage return
+//	serial_send(13); // carriage return
 }
 void serial_comma(){
 	serial_send(','); // comma
@@ -86,8 +86,8 @@ volatile uint8_t regC;
 volatile uint8_t regD;
 
 // these values will hold the current/voltage value
-volatile char current[4];
-volatile char voltage[4];
+volatile char current[4] = "XXXX";
+volatile char voltage[4] = "XXXX";
 
 volatile int display_sum = 0;
 volatile int last_display_sum = 0;
@@ -208,7 +208,7 @@ void capture_full(){
         serial_send(voltage[i]);
         if (i==1){serial_send('.');}
     }
-    serial_send(',');
+    serial_send(' ');
     for(i=0;i<4;i++) {
         serial_send(current[i]);
         if (i==2){serial_send('.');}
-- 
2.20.1