ADC DMA能读取

2023-06-20 23:41:10 +08:00
parent 83ba21b0bd
commit aca0b9b000
30 changed files with 10279 additions and 6492 deletions
@@ -0,0 +1,142 @@
+/*
+ * drv_key.c
+ *
+ *  Created on: Jun 11, 2023
+ *      Author: gxms0
+ */
+#include "drv_key.h"
+
+uint8_t keys[4] = {0x00};
+
+void EXTI2_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void EXTI3_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void EXTI4_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void EXTI9_5_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+
+/*********************************************************************
+ * @fn      EXTI0_INT_INIT
+ *
+ * @brief   Initializes EXTI0 collection.
+ *
+ * @return  none
+ */
+void exti_init(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure = {0};
+    EXTI_InitTypeDef EXTI_InitStructure = {0};
+    NVIC_InitTypeDef NVIC_InitStructure = {0};
+
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOD, ENABLE);
+
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOD, &GPIO_InitStructure);
+
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOB, &GPIO_InitStructure);
+
+
+
+    NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+
+
+    EXTI_ClearITPendingBit(EXTI_Line2);
+    EXTI_ClearITPendingBit(EXTI_Line3);
+    EXTI_ClearITPendingBit(EXTI_Line4);
+    EXTI_ClearITPendingBit(EXTI_Line5);
+
+
+
+    /* GPIOD ----> EXTI_Line2 */
+    GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource2);
+
+    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
+    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+    EXTI_InitStructure.EXTI_Line = EXTI_Line2;
+    EXTI_Init(&EXTI_InitStructure);
+
+
+    /* GPIOB ----> EXTI_Line3,4,5 */
+    GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource3);
+    GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource4);
+    GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource5);
+
+
+    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
+    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+    EXTI_InitStructure.EXTI_Line = EXTI_Line3 | EXTI_Line4 | EXTI_Line5;
+    EXTI_Init(&EXTI_InitStructure);
+
+
+
+
+
+}
+
+
+void EXTI2_IRQHandler(void)
+{
+  if(EXTI_GetITStatus(EXTI_Line2)!=RESET)
+  {
+      keys[0] = (keys[0] > 0)?(0x00):(0x01);
+      EXTI_ClearITPendingBit(EXTI_Line2);     /* Clear Flag */
+  }
+}
+
+void EXTI3_IRQHandler(void)
+{
+  if(EXTI_GetITStatus(EXTI_Line3)!=RESET)
+  {
+      keys[1] = (keys[1] > 0)?(0x00):(0x01);
+      EXTI_ClearITPendingBit(EXTI_Line3);     /* Clear Flag */
+  }
+}
+
+void EXTI4_IRQHandler(void)
+{
+  if(EXTI_GetITStatus(EXTI_Line4)!=RESET)
+  {
+      keys[2] = (keys[2] > 0)?(0x00):(0x01);
+      EXTI_ClearITPendingBit(EXTI_Line4);     /* Clear Flag */
+  }
+}
+
+void EXTI9_5_IRQHandler(void)
+{
+  if(EXTI_GetITStatus(EXTI_Line5)!=RESET)
+  {
+      keys[3] = (keys[3] > 0)?(0x00):(0x01);
+      EXTI_ClearITPendingBit(EXTI_Line5);     /* Clear Flag */
+  }
+}
+
+
+
+