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authorUwe Hermann2010-12-31 18:18:39 +0100
committerUwe Hermann2010-12-31 18:18:39 +0100
commit8f251e8a9d46634be4741f7f1aef3d52fb1b7dba (patch)
treefb3c17756e0b18fe19ca28f0f67b2ae636cac807 /include/libopencm3/stm32/iwdg.h
parent95793aa6cedeef06db9592602ecf3dc00edec610 (diff)
Some more file/path restructuring.
All #includes now explicitly use the "<libopencm3/stm32/rcc.h>" format. If you want to get rid of the "libopencm3" prefix in your local project you can add a respective -I entry in your Makefile (not recommended though). All .ld files and .a libs are installed in $(TOOLCHAIN_DIR)/lib directly (as before), but are now renamed to avoid potential conflicts now or in the future. Examples: libopencm3_lpc13xx.a libopencm3_lpc13xx.ld libopencm3_stm32.a libopencm3_stm32.ld
Diffstat (limited to 'include/libopencm3/stm32/iwdg.h')
-rw-r--r--include/libopencm3/stm32/iwdg.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/libopencm3/stm32/iwdg.h b/include/libopencm3/stm32/iwdg.h
new file mode 100644
index 0000000..bf2784a
--- /dev/null
+++ b/include/libopencm3/stm32/iwdg.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
+ *
+ * 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/>.
+ */
+
+#ifndef LIBOPENCM3_IWDG_H
+#define LIBOPENCM3_IWDG_H
+
+#include <libopencm3/stm32/memorymap.h>
+#include <libopencm3/cm3/common.h>
+
+/* --- IWDG registers ------------------------------------------------------ */
+
+/* Key Register (IWDG_KR) */
+#define IWDG_KR MMIO32(IWDG_BASE + 0x00)
+
+/* Prescaler register (IWDG_PR) */
+#define IWDG_PR MMIO32(IWDG_BASE + 0x04)
+
+/* Reload register (IWDG_RLR) */
+#define IWDG_RLR MMIO32(IWDG_BASE + 0x08)
+
+/* Status register (IWDG_SR) */
+#define IWDG_SR MMIO32(IWDG_BASE + 0x0C)
+
+/* --- IWDG_KR values ------------------------------------------------------ */
+
+/* KEY[15:0]: Key value */
+#define IWDG_KR_RESET 0xAAAA
+#define IWDG_KR_UNLOCK 0x5555
+#define IWDG_KR_START 0xCCCC
+
+/* --- IWDG_PR values ------------------------------------------------------ */
+
+/* PR[2:0]: Prescaler divider */
+#define IWDG_PR_LSB 0
+#define IWDG_PR_DIV4 0x0
+#define IWDG_PR_DIV8 0x1
+#define IWDG_PR_DIV16 0x2
+#define IWDG_PR_DIV32 0x3
+#define IWDG_PR_DIV64 0x4
+#define IWDG_PR_DIV128 0x5
+#define IWDG_PR_DIV256 0x6
+/* Double definition: 0x06 and 0x07 both mean DIV256 as per datasheet. */
+/* #define IWDG_PR_DIV256 0x7 */
+
+/* --- IWDG_RLR values ----------------------------------------------------- */
+
+/* RL[11:0]: Watchdog counter reload value */
+
+/* --- IWDG_SR values ------------------------------------------------------ */
+
+/* RVU: Watchdog counter reload value update */
+#define IWDG_SR_RVU (1 << 1)
+
+/* PVU: Watchdog prescaler value update */
+#define IWDG_SR_PVU (1 << 0)
+
+/* --- IWDG funtion prototypes---------------------------------------------- */
+
+#endif