diff options
Diffstat (limited to 'libopencm3/include/libopencm3/stm32/wwdg.h')
| -rw-r--r-- | libopencm3/include/libopencm3/stm32/wwdg.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/stm32/wwdg.h b/libopencm3/include/libopencm3/stm32/wwdg.h new file mode 100644 index 0000000..ef75f09 --- /dev/null +++ b/libopencm3/include/libopencm3/stm32/wwdg.h @@ -0,0 +1,83 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org> + * + * 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/>. + */ + +#ifndef LIBOPENCM3_WWDG_H +#define LIBOPENCM3_WWDG_H + +#include <libopencm3/cm3/common.h> +#include <libopencm3/stm32/memorymap.h> + +/* --- WWDG registers ------------------------------------------------------ */ + +/* Control register (WWDG_CR) */ +#define WWDG_CR MMIO32(WWDG_BASE + 0x00) + +/* Configuration register (WWDG_CFR) */ +#define WWDG_CFR MMIO32(WWDG_BASE + 0x04) + +/* Status register (WWDG_SR) */ +#define WWDG_SR MMIO32(WWDG_BASE + 0x08) + +/* --- WWDG_CR values ------------------------------------------------------ */ + +/* Bits [31:8]: Reserved */ + +/* WDGA: Activation bit */ +#define WWDG_CR_WDGA (1 << 7) + +/* T[6:0]: 7-bit counter (MSB to LSB) */ +#define WWDG_CR_T_LSB 0 +#define WWDG_CR_T0 (1 << 0) +#define WWDG_CR_T1 (1 << 1) +#define WWDG_CR_T2 (1 << 2) +#define WWDG_CR_T3 (1 << 3) +#define WWDG_CR_T4 (1 << 4) +#define WWDG_CR_T5 (1 << 5) +#define WWDG_CR_T6 (1 << 6) + +/* --- WWDG_CFR values ----------------------------------------------------- */ + +/* Bits [31:10]: Reserved */ + +/* EWI: Early wakeup interrupt */ +#define WWDG_CFR_EWI (1 << 9) + +/* WDGTB[8:7]: Timer base */ +#define WWDG_CFR_WDGTB_LSB 7 +#define WWDG_CFR_WDGTB_CK_DIV1 0x0 +#define WWDG_CFR_WDGTB_CK_DIV2 0x1 +#define WWDG_CFR_WDGTB_CK_DIV4 0x2 +#define WWDG_CFR_WDGTB_CK_DIV8 0x3 + +/* W[6:0]: 7-bit window value */ +#define WWDG_CFG_W_LSB 0 +#define WWDG_CFG_W (1 << 0) + +/* --- WWDG_SR values ------------------------------------------------------ */ + +/* Bits [31:1]: Reserved */ + +/* EWIF: Early wakeup interrupt flag */ +#define WWDG_SR_EWIF (1 << 0) + +/* --- WWDG function prototypes---------------------------------------------- */ + +/* TODO */ + +#endif |