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authorJeff Ciesielski2012-11-13 11:06:21 -0800
committerJeff Ciesielski2012-11-13 13:13:40 -0800
commitdb35fbb7ba97a8a6d7481edf07cb82cae06aa834 (patch)
treec213211778736d5ce2f06b4cf186a6900f522b20 /lib/stm32/f4/vector_chipset.c
parent1768df7edae1cd430183c03f3d0ad7f7b4d13c90 (diff)
parent4691568ca476177dc338e8c62872ceca6b4b4999 (diff)
Merge branch 'master' of git://github.com/libopencm3/libopencm3 into upstream-merge
Diffstat (limited to 'lib/stm32/f4/vector_chipset.c')
-rw-r--r--lib/stm32/f4/vector_chipset.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/stm32/f4/vector_chipset.c b/lib/stm32/f4/vector_chipset.c
new file mode 100644
index 0000000..145be05
--- /dev/null
+++ b/lib/stm32/f4/vector_chipset.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+ * Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/cm3/scb.h>
+
+static void pre_main(void)
+{
+ /* Enable access to Floating-Point coprocessor. */
+ SCB_CPACR |= SCB_CPACR_FULL * (SCB_CPACR_CP10 | SCB_CPACR_CP11);
+}