95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/** @brief global definitions and methods
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* @file global.h
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* @author King Kévin <kingkevin@cuvoodoo.info>
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* @date 2016
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*/
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#pragma once
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#include <libopencm3/stm32/gpio.h> // GPIO defines
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#include <libopencm3/cm3/nvic.h> // interrupt defines
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#include <libopencm3/stm32/exti.h> // external interrupt defines
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/** get the length of an array */
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#define LENGTH(x) (sizeof(x) / sizeof((x)[0]))
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/** @defgroup board_led board LED GPIO
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* @{
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*/
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#if defined(SYSTEM_BOARD)
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/* on system board LED is on pin 11/PA1 */
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#define LED_RCC RCC_GPIOA /**< GPIO peripheral clock (port A on system board) */
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#define LED_PORT GPIOA /**< GPIO port (port A on system board) */
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#define LED_PIN GPIO1 /**< GPIO pin (pin PA1 on system board) */
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#elif defined(BLUE_PILL)
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/* on minimum system LED is on pin 2/PC13 */
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#define LED_RCC RCC_GPIOC /**< GPIO peripheral clock (port C on blue pill) */
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#define LED_PORT GPIOC /**< GPIO port (port C on blue pill) */
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#define LED_PIN GPIO13 /**< GPIO pin (pin PC13 on system board) */
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#elif defined (MAPLE_MINI)
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/* on maple mini LED is on pin 19/PB1 */
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#define LED_RCC RCC_GPIOB /**< GPIO peripheral clock (port B on maple mini) */
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#define LED_PORT GPIOB /**< GPIO port (port B on maple mini) */
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#define LED_PIN GPIO1 /**< GPIO pin (pin PB1 on maple mini) */
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#endif
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/** @} */
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/** @defgroup board_button board user button GPIO
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* @{
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*/
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#if defined(MAPLE_MINI)
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/* on maple mini user button is on 32/PB8 */
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#define BUTTON_RCC RCC_GPIOB /**< GPIO peripheral clock (port B on maple mini) */
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#define BUTTON_PORT GPIOB /**< GPIO port (port B on maple mini) */
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#define BUTTON_PIN GPIO8 /**< GPIO pin (pin PB8 on maple mini) */
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#define BUTTON_EXTI EXTI8 /**< GPIO external interrupt (exti 8 for pin 8 on maple mini) */
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#define BUTTON_IRQ NVIC_EXTI9_5_IRQ /**< GPIO line interrupt (interrupt for line 9 to 5 for pin 8 on maple mini) */
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#define BUTTON_ISR exti9_5_isr /**< GPIO line interrupt service routine (isr for line 9 to 5 for pin 8 on maple mini) */
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#endif
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/** @} */
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/** @brief switch on board LED */
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inline void led_on(void)
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{
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#if defined(SYSTEM_BOARD) || defined(BLUE_PILL)
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gpio_clear(LED_PORT, LED_PIN);
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#elif defined(MAPLE_MINI)
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gpio_set(LED_PORT, LED_PIN);
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#endif
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}
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/** @brief switch off board LED */
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inline void led_off(void)
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{
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#if defined(SYSTEM_BOARD) || defined(BLUE_PILL)
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gpio_set(LED_PORT, LED_PIN);
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#elif defined(MAPLE_MINI)
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gpio_clear(LED_PORT, LED_PIN);
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#endif
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}
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/** @brief toggle board LED */
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inline void led_toggle(void)
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{
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gpio_toggle(LED_PORT, LED_PIN);
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}
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/** @brief default printf output */
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int _write(int file, char *ptr, int len);
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/** @brief get binary representation of a number
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* @param[in] binary number to represent in binary
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* @param[in] rjust justify representation with leading zeros
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* @return string with binary representation of the number
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*/
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char* b2s(uint32_t binary, uint8_t rjust);
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