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authorUwe Hermann2009-07-22 03:08:00 +0200
committerUwe Hermann2009-07-22 03:08:00 +0200
commit0f0ef60378c3e25a4db0628bb3686e63c10c120c (patch)
treec65801dc63776c17d0eb5807138de6803d4814dc /examples/fancyblink/fancyblink.c
parent920ea7dbdb038dd119db7873ca2ad2a9758108a5 (diff)
Add a 'fancyblink' example, currently mostly a copy of miniblink.
Diffstat (limited to 'examples/fancyblink/fancyblink.c')
-rw-r--r--examples/fancyblink/fancyblink.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/examples/fancyblink/fancyblink.c b/examples/fancyblink/fancyblink.c
new file mode 100644
index 0000000..bf8470f
--- /dev/null
+++ b/examples/fancyblink/fancyblink.c
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the libopenstm32 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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 <libopenstm32.h>
+
+int main(void)
+{
+ int i;
+
+ /* Enable GPIOC clock. */
+ rcc_enable_peripheral_clock(&RCC_APB2ENR, IOPCEN);
+
+ /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */
+ gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
+
+ /* Blink the LED (PC12) on the board. */
+ while (1) {
+ gpio_toggle(GPIOC, GPIO12); /* LED on/off */
+ for (i = 0; i < 80000; i++); /* Wait (needs -O0 CFLAGS). */
+ }
+
+ return 0;
+}
+
+u32 *vector_table[2] __attribute__ ((section(".vectors"))) = {
+ (u32 *)0x20000800, /* Use 2 KB stack (0x800 bytes). */
+ (u32 *)main, /* Use main() as reset vector for now. */
+};