92 lines
3.7 KiB
C
92 lines
3.7 KiB
C
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#include "kbd.h"
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#include "stm32f10x_lib.h"
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#define GPIO_Pin_KB1 GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3
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#define GPIO_Pin_KB2 GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_9
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#define GPIO_KB1 GPIOA
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#define GPIO_KB2 GPIOB
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#define RCC_APB2Periph_GPIO_KB1 RCC_APB2Periph_GPIOA
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#define RCC_APB2Periph_GPIO_KB2 RCC_APB2Periph_GPIOB
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#define EXTI_LINE_KB1 EXTI_Line0 | EXTI_Line1 | EXTI_Line2 | EXTI_Line3
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#define GPIO_PORT_SOURCE_KB1 GPIO_PortSourceGPIOA
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#define EXTI_LINE_KB2 EXTI_Line0 | EXTI_Line1 | EXTI_Line9
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#define GPIO_PORT_SOURCE_KB2 GPIO_PortSourceGPIOB
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void rt_hw_kbd_init()
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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EXTI_InitTypeDef EXTI_InitStructure;
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/* Configure Key Button 1 GPIO Pin as input floating (Key Button EXTI Line) */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_KB1;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIO_KB1, &GPIO_InitStructure);
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/* Configure Key Button 2 GPIO Pin as input floating (Key Button EXTI Line) */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_KB2;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIO_KB2, &GPIO_InitStructure);
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/* Enable Key Button GPIO Port clock */
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_KB1 | RCC_APB2Periph_GPIO_KB2 |
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RCC_APB2Periph_AFIO, ENABLE);
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/* Configure one bit for preemption priority */
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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/* Enable the EXTI9_5 Interrupt */
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NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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/* Connect Key Button EXTI Line to Key Button GPIO Pin */
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB1, GPIO_PinSource0);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB1, GPIO_PinSource1);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB1, GPIO_PinSource2);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB1, GPIO_PinSource3);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB2, GPIO_PinSource0);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB2, GPIO_PinSource1);
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GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KB2, GPIO_PinSource9);
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/* Configure Key Button EXTI Line to generate an interrupt on falling edge */
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EXTI_InitStructure.EXTI_Line = EXTI_LINE_KB1 | EXTI_LINE_KB2;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStructure);
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}
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void rt_hw_kbd_scan()
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{
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/* KBD1 */
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/* KBD2 */
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}
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