# HG changeset patch
# User Ethan Zonca <ez@ethanzonca.com>
# Date 2015-01-02 23:40:21
# Node ID 7ddd50ea7e9a70b4be17fc780d14140d71d7bde3
# Parent  0ac9c0fc6e354124692ecf68d653e9afc462410a

Clear screen when switching state, etc

diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -144,6 +144,7 @@ int main(void)
 // Read temperature and update global temp vars
 int32_t temp = 0;
 uint8_t temp_frac = 0;
+uint8_t state_resume = 0;
 
 void update_temp() {
     // Assert CS
@@ -160,6 +161,7 @@ void update_temp() {
         state = STATE_TC_ERROR;
     }
     else if(temp_pre & 0b0000000000000001 && !ignore_tc_error) {
+        state_resume = state;
         state = STATE_TC_ERROR;
         temp = 0;
         temp_frac = 0;
@@ -167,7 +169,10 @@ void update_temp() {
     else 
     {
         if(state == STATE_TC_ERROR)
-            state = STATE_IDLE;
+        {
+            state = state_resume;
+            ssd1306_clearscreen();
+        }
 
         uint8_t sign = temp >> 15;// top bit is sign