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-rw-r--r--lib/stm32/l1/pwr.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/stm32/l1/pwr.c b/lib/stm32/l1/pwr.c
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+++ b/lib/stm32/l1/pwr.c
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+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2012 Karl Palsson <karlp@tweak.net.au>
+ *
+ * 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/stm32/pwr.h>
+
+void pwr_set_vos_scale(vos_scale_t scale)
+{
+ PWR_CR &= ~(PWR_CR_VOS_MASK);
+ switch (scale) {
+ case RANGE1:
+ PWR_CR |= PWR_CR_VOS_RANGE1;
+ break;
+ case RANGE2:
+ PWR_CR |= PWR_CR_VOS_RANGE2;
+ break;
+ case RANGE3:
+ PWR_CR |= PWR_CR_VOS_RANGE3;
+ break;
+ }
+}
+