100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-08-20 Abbcc first version
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*/
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#include "board.h"
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void apm32_usart_init(void)
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{
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GPIO_Config_T GPIO_ConfigStruct;
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#ifdef BSP_USING_UART1
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RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);
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RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_USART1);
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GPIO_ConfigStruct.mode = GPIO_MODE_AF;
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GPIO_ConfigStruct.pin = GPIO_PIN_9;
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GPIO_ConfigStruct.otype = GPIO_OTYPE_PP;
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GPIO_ConfigStruct.speed = GPIO_SPEED_50MHz;
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GPIO_Config(GPIOA, &GPIO_ConfigStruct);
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GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_9, GPIO_AF_USART1);
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GPIO_ConfigStruct.mode = GPIO_MODE_AF;
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GPIO_ConfigStruct.pin = GPIO_PIN_10;
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GPIO_ConfigStruct.pupd = GPIO_PUPD_UP;
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GPIO_ConfigStruct.speed = GPIO_SPEED_50MHz;
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GPIO_Config(GPIOA, &GPIO_ConfigStruct);
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GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_10, GPIO_AF_USART1);
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#endif
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#ifdef BSP_USING_UART2
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RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);
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RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_USART2);
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GPIO_ConfigStruct.mode = GPIO_MODE_AF;
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GPIO_ConfigStruct.pin = GPIO_PIN_2;
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GPIO_ConfigStruct.otype = GPIO_OTYPE_PP;
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GPIO_ConfigStruct.speed = GPIO_SPEED_50MHz;
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GPIO_Config(GPIOA, &GPIO_ConfigStruct);
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GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_2, GPIO_AF_USART2);
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GPIO_ConfigStruct.mode = GPIO_MODE_AF;
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GPIO_ConfigStruct.pin = GPIO_PIN_3;
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GPIO_ConfigStruct.pupd = GPIO_PUPD_UP;
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GPIO_ConfigStruct.speed = GPIO_SPEED_50MHz;
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GPIO_Config(GPIOA, &GPIO_ConfigStruct);
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GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_3, GPIO_AF_USART2);
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#endif
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}
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void apm32_msp_can_init(void *Instance)
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{
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#if defined(BSP_USING_CAN1) || defined(BSP_USING_CAN2)
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GPIO_Config_T GPIO_InitStructure;
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CAN_T *CANx = (CAN_T *)Instance;
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if (CAN1 == CANx)
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{
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RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_CAN1);
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RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOB);
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/* PB8: CAN1_RX, PB9: CAN1_TX */
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GPIO_InitStructure.pin = GPIO_PIN_8 | GPIO_PIN_9;
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GPIO_InitStructure.mode = GPIO_MODE_AF;
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GPIO_InitStructure.otype = GPIO_OTYPE_PP;
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GPIO_InitStructure.speed = GPIO_SPEED_100MHz;
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GPIO_InitStructure.pupd = GPIO_PUPD_UP;
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GPIO_Config(GPIOB, &GPIO_InitStructure);
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GPIO_ConfigPinAF(GPIOB, GPIO_PIN_SOURCE_8, GPIO_AF_CAN1);
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GPIO_ConfigPinAF(GPIOB, GPIO_PIN_SOURCE_9, GPIO_AF_CAN1);
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}
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else if (CAN2 == CANx)
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{
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/* When using the CAN2 peripheral, the CAN1 clock must be turned on */
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RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_CAN1);
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RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_CAN2);
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RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOB);
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/* PB12: CAN2_RX, PB13: CAN2_TX */
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GPIO_InitStructure.pin = GPIO_PIN_12 | GPIO_PIN_13;
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GPIO_InitStructure.mode = GPIO_MODE_AF;
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GPIO_InitStructure.otype = GPIO_OTYPE_PP;
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GPIO_InitStructure.speed = GPIO_SPEED_100MHz;
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GPIO_InitStructure.pupd = GPIO_PUPD_UP;
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GPIO_Config(GPIOB, &GPIO_InitStructure);
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GPIO_ConfigPinAF(GPIOB, GPIO_PIN_SOURCE_12, GPIO_AF_CAN2);
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GPIO_ConfigPinAF(GPIOB, GPIO_PIN_SOURCE_13, GPIO_AF_CAN2);
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}
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#endif
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}
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