Added initial support for the LuminaryMicro LM3S family.

examples/lm3s/lm3s3748-evb/miniblink/miniblink.c

@@ -0,0 +1,52 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/lm3s/systemcontrol.h>
+#include <libopencm3/lm3s/gpio.h>
+
+void gpio_setup(void)
+{
+	SYSTEMCONTROL_RCGC2 |= 0x20; /* Enable GPIOF in run mode. */
+
+	GPIO_DIR(GPIOF) |= (1 << 0); /* Configure PF0 as output. */
+	GPIO_DEN(GPIOF) |= (1 << 0); /* Enable digital function on PF0 */
+}
+
+int main(void)
+{
+	int i;
+
+	gpio_setup();
+
+	/* Blink STATUS LED (PF0) on the board. */
+	while (1) {
+		gpio_set(GPIOF, GPIO0);
+
+		for (i = 0; i < 800000; i++)	/* Wait a bit. */
+			__asm__("nop");
+
+		gpio_clear(GPIOF, GPIO0);
+
+		for (i = 0; i < 800000; i++)	/* Wait a bit. */
+			__asm__("nop");
+	}
+
+	return 0;
+}
+