From c12537f51ecd538f74efe568e9965bb79a68ddd2 Mon Sep 17 00:00:00 2001
From: erdgeist <erdgeist@bauklotz.fritz.box>
Date: Mon, 2 Apr 2018 01:36:53 +0200
Subject: Add support for new board revision

---
 arduino/Laserharfe/Laserharfe.ino | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/arduino/Laserharfe/Laserharfe.ino b/arduino/Laserharfe/Laserharfe.ino
index 107dffb..1d7adeb 100644
--- a/arduino/Laserharfe/Laserharfe.ino
+++ b/arduino/Laserharfe/Laserharfe.ino
@@ -9,8 +9,8 @@
 int led = 13;
 int g_reading_config = 0;
 int g_writing_config = 0;
-ConfigSource g_config_source = source_none;
 //Sd2Card card;
+char g_revision;
 
 enum {
   MODE_STANDALONE = 0,
@@ -81,7 +81,8 @@ static void set_cam_register(uint8_t r, uint8_t v) {
 }
 
 static void setup_cam() {
-  digitalWrite(19, HIGH);   // turn the LED on (HIGH is the voltage level)
+  digitalWrite(g_revision == 2 ? 16 : 19, HIGH);   // Alte Harfe: port 19/A5/PB02/Pin 47
+                                                   // Neue Harfe: port 16/A2/PB09/Pin 8
   set_cam_register(0x30, 0x01);
   set_cam_register(0x06, 0x90);
   set_cam_register(0x08, 0xc0);
@@ -128,16 +129,20 @@ void read_config() {
 }
 
 void write_config() {
+  Serial.println("- removing config file");
   SD.remove("laserhar.cfg");
+  Serial.println("- ... done, open new config file");
   File configfile = SD.open("laserhar.cfg", FILE_WRITE);
   if (!configfile) {
-    Serial.println("opening config failed");
+    Serial.println("- opening config failed");
     return;
   }
+  Serial.println("- ... done, writing globals");
 
   char text[256];
   size_t len = config_dumpglobals(text, sizeof(text));
   configfile.write(text, len);
+  Serial.println("- ... done, writing globals");
   for (int i=0; i< g_string_count; ++i) {
       len = config_dumpstring(i, text, sizeof(text));
       configfile.write(text, len);
@@ -156,6 +161,11 @@ void flashy_death() {
 }
 
 void setup() {
+  pinMode(5, INPUT_PULLUP);
+  delay(10);
+  g_revision = digitalRead(5) == LOW ? 2 : 1;
+
+  Serial.begin(115200);
   pinMode(led, OUTPUT);
 
   Wire.begin();
@@ -165,8 +175,7 @@ void setup() {
   // Let PWM settle for a bit
   delay(100);
   setup_cam();
-  Serial.begin(115200);
-  delay(5000);
+  delay(1000);
   read_config();
   digitalWrite(led, LOW);   // turn the LED on (HIGH is the voltage level)
 }
@@ -227,6 +236,7 @@ void handle_wire() {
   if (p4.x!=1023)
     Serial.write(text, sprintf(text, "%04d:%04d ", p4.x, p4.y));
   Serial.println("");
+  delay(5);
 }
 
 /* Do a fast nibble to hex representation conversion */
@@ -278,11 +288,13 @@ void handle_command(char *command) {
 //  Serial.write( text, sprintf(text, "- %s\n", command));
 
   if (g_reading_config ) {
-    if ( !strcmp(command, "-- DONE")) {
+    if ( !memcmp(command, "-- DONE", 7)) {
+        Serial.println("- finished import");
         g_reading_config = 0;
         return;
     }
     config_handle_line(command);
+    delay(10);
     return;
   }
 
@@ -302,12 +314,15 @@ void handle_command(char *command) {
             g_mode = MODE_REPORTPOINTS;
             break;
         }
+        Serial.println(g_revision == 2 ? "revision 2" : "revision 1");
         break;
     case 'C': /* Import a single config line from host */
         config_handle_line(command+1);
         break;
     case 'E': /* Export config from host, import here */
         config_reset();
+        Serial.println("- export from host triggered");
+        delay(100);
         g_reading_config = true;
         break;
     case 'I': /* Import config at host */
-- 
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