Reverting commits between `git merge-head master refactor` and master.

This is a combination of 11 revert commits, and allows for a clean
merge of the work done in the refactor branch.

The combined commit messages follow.

Revert "Committing basic ring_buffer test."

This reverts commit 987fa5f433e0cd41b1621dad8b4e331cf82d49f3.

Revert "qa-slave-shield.cpp and test-session.cpp fixes for Mini and RET6 Edition."

This reverts commit cdd367bdd264c9e19180032c119850fbba2115ba.

Revert "Brought examples/ up to date; PIN_MAP bugfix for D24."

This reverts commit b4c2d4514c6d52cac8a649c5d5c24b68a3c0a416.

Revert "Separated GPIO config to a separate FSMC routine."

This reverts commit 744848ad0fc33eed66acc44e41c3c9d646c5b100.

Revert "Slightly faster RAM writes (6.5MHz)."

This reverts commit 8ba0b6bb065acb4aff26bc9c838de5f37515caf1.

Revert "FSMC working but slow (~6 MHz)."

This reverts commit 0dc9490cf4f4f10a23b08fef1728773f10c1b76a.

Revert "Maple Mini ERROR_LED_PIN fix."

This reverts commit 07d437706840901db1e09ff0ab88229c67c1fa8a.

Revert "Fixing USBSerial::read(void*, uint32) return value (thanks, Crenn!)"

This reverts commit 3ba7196712a5bfe4fe1166b6c34d49c3d7254568.

Revert "Trivial gpio_init() bugfix"

This reverts commit f6ce003bb935f26eeefa54acf7c2ae6afaabd871.

Revert "Trivial changes to test-session.cpp"

This reverts commit a32a37b121ac7e62660d2a83fe67c857fe705122.

Revert ".gitignore: Ignore cscope* files"

This reverts commit d8c72c17bd6d7416a0846e69f4f5ae5cb229d58e.

1 files changed, 14 insertions, 9 deletions

diff --git a/examples/debug-dtrrts.cpp b/examples/debug-dtrrts.cpp
index 61c061a..f9f8b96 100644
--- a/examples/debug-dtrrts.cpp
+++ b/examples/debug-dtrrts.cpp
@@ -1,12 +1,14 @@
-// Test sketch for figuring out DTR/RTS behavior on different platforms.
+// Sample main.cpp file. Blinks an LED, sends a message out USART2
+// and turns on PWM on pin 2
 
 #include "wirish.h"
 #include "usb.h"
 
-#define LED_PIN BOARD_LED_PIN
-#define PWM_PIN 2
+#define LED_PIN 13
+#define PWM_PIN  2
 
-void setup() {
+void setup()
+{
     /* Set up the LED to blink  */
     pinMode(LED_PIN, OUTPUT);
 
@@ -16,10 +18,12 @@ void setup() {
 
 }
 
+int toggle = 0;
+
 void loop() {
-    toggleLED();
+    toggle ^= 1;
+    digitalWrite(LED_PIN, toggle);
     delay(100);
-
     Serial2.print("DTR: ");
     Serial2.print(usbGetDTR(), DEC);
     Serial2.print("\tRTS: ");
@@ -27,12 +31,13 @@ void loop() {
 }
 
 // Force init to be called *first*, i.e. before static object allocation.
-// Otherwise, statically allocated objects that need libmaple may fail.
-__attribute__((constructor)) void premain() {
+// Otherwise, statically allocated object that need libmaple may fail.
+ __attribute__(( constructor )) void premain() {
     init();
 }
 
-int main(void) {
+int main(void)
+{
     setup();
 
     while (1) {