From f1598e62ac2cdd4a6077aed6ca200743a4de59e5 Mon Sep 17 00:00:00 2001
From: iperry <iperry@749a229e-a60e-11de-b98f-4500b42dc123>
Date: Sun, 10 Jan 2010 13:22:52 +0000
Subject: enabled serial3

git-svn-id: https://leaflabs.googlecode.com/svn/trunk/library@109 749a229e-a60e-11de-b98f-4500b42dc123
---
 Makefile        | 11 ++++-------
 src/lib/usart.c |  8 +++++++-
 src/main.cpp    | 22 +++++++++++++++++-----
 3 files changed, 28 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index 8260770..3f45b5f 100644
--- a/Makefile
+++ b/Makefile
@@ -109,16 +109,15 @@ _CPPOBJ =  $(boop:.cpp=.o)
 COBJ = $(patsubst %, $(BUILD_PATH)/%,$(_COBJ))
 CPPOBJ = $(patsubst %, $(BUILD_PATH)/%,$(_CPPOBJ))
 
-.PHONY: run cscope clean info
-
+.PHONY: run cscope clean info program_ram program_flash program_jtag
 
 info:
 	@echo "Maple library help"
 	@echo "------------------:"
 	@echo "Compile targets:"
-	@echo "	   ram:   Compile sketch code for RAM to be loaded over the bootloader"
-	@echo "	   flash: Compile sketch code for flash to be loaded over the bootloader"
-	@echo "	   jtag:  Compile sketch code for flash to be loaded over JTAG"
+	@echo "	   ram:           Compile sketch code for RAM to be loaded over the bootloader"
+	@echo "	   flash:         Compile sketch code for flash to be loaded over the bootloader"
+	@echo "	   jtag:          Compile sketch code for flash to be loaded over JTAG"
 	@echo ""
 	@echo "Programming targets:"
 	@echo "	   program_ram:   Upload code to RAM via bootloader"
@@ -138,13 +137,11 @@ $(OUTDIRS):
 # actual build rules
 $(COBJ) : $(BUILD_PATH)/%.o : %.c
 	@echo $(MSG_COMPILING) $<
-	@echo $(PATH)
 	$(CC) $(CFLAGS) -c $< -o $@
 	@echo
 
 $(CPPOBJ) : $(BUILD_PATH)/%.o : %.cpp
 	@echo $(MSG_COMPILING) $<
-	@echo $(PATH)
 	$(CPP) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
 	@echo
 
diff --git a/src/lib/usart.c b/src/lib/usart.c
index a06690e..76685fd 100644
--- a/src/lib/usart.c
+++ b/src/lib/usart.c
@@ -83,7 +83,12 @@ void USART2_IRQHandler(void) {
     ring_buf2.buf[ring_buf2.tail++] = (uint8_t)(((usart_port*)(USART2_BASE))->DR);
     ring_buf2.tail %= USART_RECV_BUF_SIZE;
 }
-
+/* Don't overrun your buffer, seriously  */
+void USART3_IRQHandler(void) {
+    /* Read the data  */
+    ring_buf3.buf[ring_buf2.tail++] = (uint8_t)(((usart_port*)(USART3_BASE))->DR);
+    ring_buf3.tail %= USART_RECV_BUF_SIZE;
+}
 
 /**
  *  @brief Enable a USART in single buffer transmission mode, multibuffer
@@ -124,6 +129,7 @@ void usart_init(uint8 usart_num, uint32 baud) {
         port = (usart_port*)USART3_BASE;
         ring_buf = &ring_buf3;
         clk_speed = USART3_CLK;
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
         break;
     default:
         /* should never get here  */
diff --git a/src/main.cpp b/src/main.cpp
index b260bd0..edd4fbb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,19 +1,31 @@
 #include "wiring.h"
 #include "HardwareSerial.h"
 #include "wiring_math.h"
+#include "HardwareUsb.h"
 #include "usb.h"
 
+//HardwareUsb USB;
+
 int ledPin = 13;
-int toggle=0;
 void setup() {
     pinMode(ledPin,OUTPUT);
+    Serial2.begin(9600);
+    Serial3.begin(9600);
 }
 
+volatile int toggle = 1;
+
 void loop() {
-    digitalWrite(ledPin, HIGH);
-    delay(1000);
-    digitalWrite(ledPin,LOW);
-    delay(1000);
+    digitalWrite(ledPin, toggle);
+    toggle ^= 1;
+    delay(500);
+//    USB.print(millis());
+//    USB.println("\r");
+    Serial2.print(millis(), DEC);
+    Serial3.print(millis(), DEC);
+    Serial3.print(": ");
+//    Serial3.print(USB.available(), DEC);
+    Serial3.println();
 }
 
 int main(void) {
-- 
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