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Diffstat (limited to 'src/lib/exti.h')
| -rw-r--r-- | src/lib/exti.h | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/src/lib/exti.h b/src/lib/exti.h deleted file mode 100644 index c728454..0000000 --- a/src/lib/exti.h +++ /dev/null @@ -1,152 +0,0 @@ -/* ***************************************************************************** - * 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/>. - * - * Created: 12/18/09 02:35:33 - * Copyright (c) 2009 Perry L. Hung. All rights reserved. - * - * ****************************************************************************/ - -/** - * @file exti.h - * - * @brief External interrupt control prototypes and defines - */ - -#ifndef _EXTI_H_ -#define _EXTI_H_ - -#include <inttypes.h> -/* Notes: - * - * To generate the interrupt, the interrupt line should be configured and - * enabled. This is done by programming the two trigger registers with the - * desired edge detection and by enabling the interrupt request by writing a - * '1' to the corresponding bit in the interrupt mask register. When the - * selected edge occurs on the external interrupt line, an interrupt request is - * generated. The pending bit corresponding to the interrupt line is also set. - * This request is reset by writing a '1' in the pending register. - * - * Hardware interrupt selection: - * To configure the 20 lines as interrupt sources, use the following procedure: - * 1) Configure AFIO_EXTIICR[y] to select the source input for EXTIx external - * interrupt - * 2) Configure the mask bits of the 20 interrupt lines (EXTI_IMR) - * 3) Configure the trigger selection bits of the interrupt lines (EXTI_RTSR and EXTI_FTSR) - * 4) Configure the enable and mask bits that control the NVIC_IRQ channel mapped to the External - * Interrupt Controller (EXTI) so that an inerrupt coming from one of the 20 lines - * can be correctly acknowledged. - * - * AFIO clock must be on. - * - * RM0008, page 107: "PD0, PD1 cannot be used for external interrupt/event generation - * on 36, 48, 64-bin packages." - * - * ---------------------------------------------------------------------------- - * Pin to EXTI Line Mappings: - * EXTI0 EXTI1 EXTI2 EXTI3 EXTI4 - * ---------------------------------------------------------------------------- - * D2/PA0 D3/PA1 D1/PA2 D0/A6/PA3 D10/A10/PA4 - * D26/EXT7/PB0 D27/EXT8/PB1 D16/A2/PC2 D17/A3/PC3 D18/A4/PC4 - * D14/A0/PC0 D15/PC1 D25/EXT5/PD2 - * - * EXTI5 EXTI6 EXTI7 EXTI8 EXTI9 - * ---------------------------------------------------------------------------- - * D13/A13/PA5 D12/A12/PA6 D11/A11/PA7 D6/PA8 D7/PA9 - * D4/PB5 D5/PB6 D9/PB7 D38/PB8 D23/EXT4/PB9 - * D19/A5/PC5 D34/EXTI15/PC6 D35/EXT16/PC7 D36/PC8 D37/EXT18/PC9 - * - * EXTI10 EXTI11 EXTI12 EXTI13 EXTI14 - * ---------------------------------------------------------------------------- - * D8/PA10 D29/EXT10/PB11 D30/EXTI1/PB12 D31/EXTI12/PB13 D32/EXT13/PB14 - * D28/PB10 D20/EXTI1/PC13 D21/EXT2/PC14 - * D25/PC10 - * - * EXTI15 - * ---------------------------------------------------------------------------- - * D33/EXTI14/PB15 - * D22/EXT3/PC15 - * - * - * The 16 EXTI interrupts are mapped to 7 interrupt handlers. - * - * EXTI Lines to Interrupt Mapping: - * EXTI0 -> EXTI0 - * EXTI1 -> EXTI1 - * EXTI2 -> EXTI2 - * EXTI3 -> EXTI3 - * EXTI4 -> EXTI4 - * EXTI[5-9] -> EXT9_5 - * EXTI[10-15] -> EXT15_10 - * - * - * */ - -#define NR_EXTI_CHANNELS 16 -#define NR_EXTI_PORTS 4 -#define NR_EXTI_MODES 3 - -#define EXTI_IMR 0x40010400 // Interrupt mask register -#define EXTI_EMR (EXTI_IMR + 0x04) // Event mask register -#define EXTI_RTSR (EXTI_IMR + 0x08) // Rising trigger selection register -#define EXTI_FTSR (EXTI_IMR + 0x0C) // Falling trigger selection register -#define EXTI_SWIER (EXTI_IMR + 0x10) // Software interrupt event register -#define EXTI_PR (EXTI_IMR + 0x14) // Pending register - -#define AFIO_EVCR 0x40010000 -#define AFIO_EXTICR1 (AFIO_EVCR + 0x08) -#define AFIO_EXTICR2 (AFIO_EVCR + 0x0C) -#define AFIO_EXTICR3 (AFIO_EVCR + 0x10) -#define AFIO_EXTICR4 (AFIO_EVCR + 0x14) - -#define EXTI_RISING 0 -#define EXTI_FALLING 1 -#define EXTI_RISING_FALLING 2 - -#define EXTI0 0 -#define EXTI1 1 -#define EXTI2 2 -#define EXTI3 3 -#define EXTI4 4 -#define EXTI5 5 -#define EXTI6 6 -#define EXTI7 7 -#define EXTI8 8 -#define EXTI9 9 -#define EXTI10 10 -#define EXTI11 11 -#define EXTI12 12 -#define EXTI13 13 -#define EXTI14 14 -#define EXTI15 15 - -#define EXTI_CONFIG_PORTA 0 -#define EXTI_CONFIG_PORTB 1 -#define EXTI_CONFIG_PORTC 2 -#define EXTI_CONFIG_PORTD 3 - - -#ifdef __cplusplus -extern "C"{ -#endif - -void exti_attach_interrupt(uint8_t, uint8_t, voidFuncPtr, uint8_t); -void exti_detach_interrupt(uint8_t); - -#ifdef __cplusplus -} // extern "C" -#endif - - -#endif - |