From fe76cc4a6bcef49ffa893762ced5ea9d7d420b82 Mon Sep 17 00:00:00 2001
From: texane <texane@dell.fbx.proxad.net>
Date: Fri, 14 Jan 2011 09:54:01 -0600
Subject: [PATCH] [add] dirty example

---
 example/build.sh |  19 +++++++++++++++++++
 example/main.c   |  27 +++++++++++++++++++++++++++
 example/o.bin    | Bin 0 -> 64 bytes
 3 files changed, 46 insertions(+)
 create mode 100755 example/build.sh
 create mode 100644 example/main.c
 create mode 100755 example/o.bin

diff --git a/example/build.sh b/example/build.sh
new file mode 100755
index 0000000..39e8fb4
--- /dev/null
+++ b/example/build.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+
+CHAIN=$HOME/sat/bin/arm-none-eabi
+PATH=$HOME/sat/arm-none-eabi/bin:$PATH
+
+$CHAIN-gcc \
+    -O2 \
+    -mlittle-endian \
+    -mthumb \
+    -mcpu=cortex-m3 \
+    -ffreestanding \
+    -nostdlib \
+    -nostdinc \
+    main.c
+
+$CHAIN-objcopy \
+    -O binary \
+    a.out \
+    /tmp/foobar
\ No newline at end of file
diff --git a/example/main.c b/example/main.c
new file mode 100644
index 0000000..7b96605
--- /dev/null
+++ b/example/main.c
@@ -0,0 +1,27 @@
+typedef unsigned int uint32_t;
+
+#define GPIOC		0x40011000 // port C
+#define GPIOC_CRH	(GPIOC + 0x04) // port configuration register high
+#define GPIOC_ODR	(GPIOC + 0x0c) // port output data register
+#define LED_BLUE	(1<<8) // pin 8
+#define LED_GREEN	(1<<9) // pin 9
+
+#define delay()						\
+do {							\
+  register unsigned int i;				\
+  for (i = 0; i < 1000000; ++i)				\
+    __asm__ __volatile__ ("nop\n\t":::"memory");	\
+} while (0)
+
+static void __attribute__((naked)) __attribute__((used)) main(void)
+{
+  *(volatile uint32_t*)GPIOC_CRH = 0x44444411;
+
+  while (1)
+  {
+    *(volatile uint32_t*)GPIOC_ODR = LED_BLUE | LED_GREEN;
+    delay();
+    *(volatile uint32_t*)GPIOC_ODR = 0;
+    delay();
+  }
+}
diff --git a/example/o.bin b/example/o.bin
new file mode 100755
index 0000000000000000000000000000000000000000..76324f796a6523d1acb35940d4d351466dd7773e
GIT binary patch
literal 64
zcmZ?##KP?INzm!YCr0KYpIn?AKk+b1B>;Jh{$CslTs}D{b0i%2#LvvIpV9iyMIc{^
P8^mV<@~!?{eD@pxMXwtU

literal 0
HcmV?d00001

-- 
2.30.2