62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
#include "stm32f10x_gpio.h"
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#include "bsp_PS2.h"
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#include "bsp_adc.h"
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//X和Y的配置在ADC中
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static void EXTI_NVIC_Config(void)
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{
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NVIC_InitTypeDef NVIC_InitStruct;
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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//配置PS2的SW中断
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NVIC_InitStruct.NVIC_IRQChannel = EXTI2_IRQn;
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NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStruct.NVIC_IRQChannelSubPriority = 1;
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NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStruct);
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}
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void PS2_Key_Config(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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EXTI_InitTypeDef EXTI_InitStruct;
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//配置中断优先级
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EXTI_NVIC_Config();
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//初始化GPIO
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RCC_APB2PeriphClockCmd(PS2_SW_CLK, ENABLE);
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//初始化SW
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GPIO_InitStruct.GPIO_Pin = PS2_SW_PIN;
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_Init(PS2_SW_PORT, &GPIO_InitStruct);
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//初始化EXTI
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource2);
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//初始化SW中断
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EXTI_InitStruct.EXTI_Line = EXTI_Line2;
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EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStruct.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStruct);
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}
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uint8_t Read_X_Data(void)
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{
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return Get_X_Data();
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}
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uint8_t Read_Y_Data(void)
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{
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return Get_Y_Data();
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}
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uint8_t Read_SW_Data(void)
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{
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return GPIO_ReadInputDataBit(PS2_SW_PORT, PS2_SW_PIN);
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}
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