platform-gd32v-平台-GD32V

/*! \file gd32v103v_eval.c \brief firmware functions to manage leds, keys, COM ports \version 2019-6-5, V1.0.0, demo for GD32VF103 */ /* Copyright (c) 2019, GigaDevice Semiconductor Inc. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "gd32v103v_eval.h" /* private variables */ static uint32_t GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT, LED4_GPIO_PORT}; static uint32_t GPIO_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN, LED4_PIN}; static rcu_periph_enum COM_CLK[COMn] = {EVAL_COM0_CLK, EVAL_COM1_CLK}; static uint32_t COM_TX_PIN[COMn] = {EVAL_COM0_TX_PIN, EVAL_COM1_TX_PIN}; static uint32_t COM_RX_PIN[COMn] = {EVAL_COM0_RX_PIN, EVAL_COM1_RX_PIN}; static uint32_t COM_GPIO_PORT[COMn] = {EVAL_COM0_GPIO_PORT, EVAL_COM1_GPIO_PORT}; static rcu_periph_enum COM_GPIO_CLK[COMn] = {EVAL_COM0_GPIO_CLK, EVAL_COM1_GPIO_CLK}; static rcu_periph_enum GPIO_CLK[LEDn] = {LED1_GPIO_CLK, LED2_GPIO_CLK, LED3_GPIO_CLK, LED4_GPIO_CLK}; static uint32_t KEY_PORT[KEYn] = {KEY_A_GPIO_PORT, KEY_B_GPIO_PORT, KEY_C_GPIO_PORT, KEY_D_GPIO_PORT, KEY_CET_GPIO_PORT}; static uint32_t KEY_PIN[KEYn] = {KEY_A_PIN, KEY_B_PIN, KEY_C_PIN, KEY_D_PIN, KEY_CET_PIN}; static rcu_periph_enum KEY_CLK[KEYn] = {KEY_A_GPIO_CLK, KEY_B_GPIO_CLK, KEY_C_GPIO_CLK, KEY_D_GPIO_CLK, KEY_CET_GPIO_CLK}; static exti_line_enum KEY_EXTI_LINE[KEYn] = {KEY_A_EXTI_LINE, KEY_B_EXTI_LINE, KEY_C_EXTI_LINE, KEY_D_EXTI_LINE, KEY_CET_EXTI_LINE}; static uint8_t KEY_PORT_SOURCE[KEYn] = {KEY_A_EXTI_PORT_SOURCE, KEY_B_EXTI_PORT_SOURCE, KEY_C_EXTI_PORT_SOURCE, KEY_D_EXTI_PORT_SOURCE, KEY_CET_EXTI_PORT_SOURCE}; static uint8_t KEY_PIN_SOURCE[KEYn] = {KEY_A_EXTI_PIN_SOURCE, KEY_B_EXTI_PIN_SOURCE, KEY_C_EXTI_PIN_SOURCE, KEY_D_EXTI_PIN_SOURCE, KEY_CET_EXTI_PIN_SOURCE}; static uint8_t KEY_IRQn[KEYn] = {KEY_A_EXTI_IRQn, KEY_B_EXTI_IRQn, KEY_C_EXTI_IRQn, KEY_D_EXTI_IRQn, KEY_CET_EXTI_IRQn}; /*! \brief configure led GPIO \param[in] lednum: specify the led to be configured \arg LED1 \arg LED2 \arg LED3 \arg LED4 \param[out] none \retval none */ void gd_eval_led_init(led_typedef_enum lednum) { /* enable the led clock */ rcu_periph_clock_enable(GPIO_CLK[lednum]); /* configure led GPIO port */ gpio_init(GPIO_PORT[lednum], GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, GPIO_PIN[lednum]); GPIO_BC(GPIO_PORT[lednum]) = GPIO_PIN[lednum]; } /*! \brief turn on selected led \param[in] lednum: specify the led to be turned on \arg LED1 \arg LED2 \arg LED3 \arg LED4 \param[out] none \retval none */ void gd_eval_led_on(led_typedef_enum lednum) { GPIO_BOP(GPIO_PORT[lednum]) = GPIO_PIN[lednum]; } /*! \brief turn off selected led \param[in] lednum: specify the led to be turned off \arg LED1 \arg LED2 \arg LED3 \arg LED4 \param[out] none \retval none */ void gd_eval_led_off(led_typedef_enum lednum) { GPIO_BC(GPIO_PORT[lednum]) = GPIO_PIN[lednum]; } /*! \brief toggle selected led \param[in] lednum: specify the led to be toggled \arg LED1 \arg LED2 \arg LED3 \arg LED4 \param[out] none \retval none */ void gd_eval_led_toggle(led_typedef_enum lednum) { gpio_bit_write(GPIO_PORT[lednum], GPIO_PIN[lednum], (bit_status)(1-gpio_input_bit_get(GPIO_PORT[lednum], GPIO_PIN[lednum]))); } /*! \brief configure key \param[in] key_num: specify the key to be configured \arg KEY_A: wakeup key \arg KEY_B: tamper key \arg KEY_C: user key \arg KEY_D: user key \arg KEY_CET: user key \param[in] key_mode: specify button mode \arg KEY_MODE_GPIO: key will be used as simple IO \arg KEY_MODE_EXTI: key will be connected to EXTI line with interrupt \param[out] none \retval none */ void gd_eval_key_init(key_typedef_enum key_num, keymode_typedef_enum key_mode) { /* enable the key clock */ rcu_periph_clock_enable(KEY_CLK[key_num]); rcu_periph_clock_enable(RCU_AF); /* configure button pin as input */ gpio_init(KEY_PORT[key_num], GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, KEY_PIN[key_num]); if (key_mode == KEY_MODE_EXTI) { /* enable and set key EXTI interrupt to the lowest priority */ eclic_irq_enable(KEY_IRQn[key_num],1, 1); /* connect key EXTI line to key GPIO pin */ gpio_exti_source_select(KEY_PORT_SOURCE[key_num], KEY_PIN_SOURCE[key_num]); /* configure key EXTI line */ exti_init(KEY_EXTI_LINE[key_num], EXTI_INTERRUPT, EXTI_TRIG_FALLING); exti_interrupt_flag_clear(KEY_EXTI_LINE[key_num]); } } /*! \brief return the selected key state \param[in] key: specify the key to be checked \arg KEY_A: wakeup key \arg KEY_B: tamper key \arg KEY_C: user key \arg KEY_D: user key \arg KEY_CET: user key \param[out] none \retval the key's GPIO pin value */ uint8_t gd_eval_key_state_get(key_typedef_enum key) { return gpio_input_bit_get(KEY_PORT[key], KEY_PIN[key]); } /*! \brief configure COM port \param[in] com: COM on the board \arg EVAL_COM0: COM0 on t