--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32f4xx_it.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 19-September-2011
+ * @brief Main Interrupt Service Routines.
+ * This file provides all exceptions handler and peripherals interrupt
+ * service routine.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_it.h"
+#include "main.h"
+#include "usb_core.h"
+#include "usbd_core.h"
+#include "stm32f4_discovery.h"
+#include "usbd_hid_core.h"
+
+//Library config for this project!!!!!!!!!!!
+#include "stm32f4xx_conf.h"
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define CURSOR_STEP 7
+
+extern uint8_t Buffer[6];
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+extern __IO uint8_t DemoEnterCondition;
+uint8_t Counter = 0x00;
+extern int8_t X_Offset;
+extern int8_t Y_Offset;
+extern __IO uint8_t UserButtonPressed;
+__IO uint8_t TempAcceleration = 0;
+/* Private function prototypes -----------------------------------------------*/
+extern USB_OTG_CORE_HANDLE USB_OTG_dev;
+static uint8_t *USBD_HID_GetPos (void);
+extern uint32_t USBD_OTG_ISR_Handler (USB_OTG_CORE_HANDLE *pdev);
+
+/******************************************************************************/
+/* Cortex-M3 Processor Exceptions Handlers */
+/******************************************************************************/
+
+/**
+ * @brief This function handles NMI exception.
+ * @param None
+ * @retval None
+ */
+void NMI_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Hard Fault exception.
+ * @param None
+ * @retval None
+ */
+void HardFault_Handler(void)
+{
+ /* Go to infinite loop when Hard Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Memory Manage exception.
+ * @param None
+ * @retval None
+ */
+void MemManage_Handler(void)
+{
+ /* Go to infinite loop when Memory Manage exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Bus Fault exception.
+ * @param None
+ * @retval None
+ */
+void BusFault_Handler(void)
+{
+ /* Go to infinite loop when Bus Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Usage Fault exception.
+ * @param None
+ * @retval None
+ */
+void UsageFault_Handler(void)
+{
+ /* Go to infinite loop when Usage Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles SVCall exception.
+ * @param None
+ * @retval None
+ */
+void SVC_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Debug Monitor exception.
+ * @param None
+ * @retval None
+ */
+void DebugMon_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles PendSVC exception.
+ * @param None
+ * @retval None
+ */
+void PendSV_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles SysTick Handler.
+ * @param None
+ * @retval None
+ */
+void SysTick_Handler(void)
+{
+ uint8_t *buf;
+ uint8_t temp1, temp2 = 0x00;
+
+ if (DemoEnterCondition == 0x00)
+ {
+ TimingDelay_Decrement();
+ }
+ else
+ {
+ buf = USBD_HID_GetPos();
+ if((buf[1] != 0) ||(buf[2] != 0))
+ {
+ USBD_HID_SendReport (&USB_OTG_dev,
+ buf,
+ 4);
+ }
+ Counter ++;
+ if (Counter == 10)
+ {
+ Buffer[0] = 0;
+ Buffer[2] = 0;
+ /* Disable All TIM4 Capture Compare Channels */
+ TIM_CCxCmd(TIM4, TIM_Channel_1, DISABLE);
+ TIM_CCxCmd(TIM4, TIM_Channel_2, DISABLE);
+ TIM_CCxCmd(TIM4, TIM_Channel_3, DISABLE);
+ TIM_CCxCmd(TIM4, TIM_Channel_4, DISABLE);
+
+ LIS302DL_Read(Buffer, LIS302DL_OUT_X_ADDR, 6);
+ /* Remove the offsets values from data */
+ Buffer[0] -= X_Offset;
+ Buffer[2] -= Y_Offset;
+ /* Update autoreload and capture compare registers value*/
+ temp1 = ABS((int8_t)(Buffer[0]));
+ temp2 = ABS((int8_t)(Buffer[2]));
+ TempAcceleration = MAX(temp1, temp2);
+
+ if(TempAcceleration != 0)
+ {
+ if ((int8_t)Buffer[0] < -2)
+ {
+ /* Enable TIM4 Capture Compare Channel 4 */
+ TIM_CCxCmd(TIM4, TIM_Channel_4, ENABLE);
+ /* Sets the TIM4 Capture Compare4 Register value */
+ TIM_SetCompare4(TIM4, TIM_CCR/TempAcceleration);
+ }
+ if ((int8_t)Buffer[0] > 2)
+ {
+ /* Enable TIM4 Capture Compare Channel 2 */
+ TIM_CCxCmd(TIM4, TIM_Channel_2, ENABLE);
+ /* Sets the TIM4 Capture Compare2 Register value */
+ TIM_SetCompare2(TIM4, TIM_CCR/TempAcceleration);
+ }
+ if ((int8_t)Buffer[2] > 2)
+ {
+ /* Enable TIM4 Capture Compare Channel 1 */
+ TIM_CCxCmd(TIM4, TIM_Channel_1, ENABLE);
+ /* Sets the TIM4 Capture Compare1 Register value */
+ TIM_SetCompare1(TIM4, TIM_CCR/TempAcceleration);
+ }
+ if ((int8_t)Buffer[2] < -2)
+ {
+ /* Enable TIM4 Capture Compare Channel 3 */
+ TIM_CCxCmd(TIM4, TIM_Channel_3, ENABLE);
+ /* Sets the TIM4 Capture Compare3 Register value */
+ TIM_SetCompare3(TIM4, TIM_CCR/TempAcceleration);
+ }
+ /* Time base configuration */
+ TIM_SetAutoreload(TIM4, TIM_ARR/TempAcceleration);
+ }
+ Counter = 0x00;
+ }
+ }
+
+}
+
+/******************************************************************************/
+/* STM32Fxxx Peripherals Interrupt Handlers */
+/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
+/* available peripheral interrupt handler's name please refer to the startup */
+/* file (startup_stm32fxxx.s). */
+/******************************************************************************/
+
+/**
+ * @brief This function handles PPP interrupt request.
+ * @param None
+ * @retval None
+ */
+/*void PPP_IRQHandler(void)
+{
+}*/
+
+/**
+ * @brief This function handles EXTI0_IRQ Handler.
+ * @param None
+ * @retval None
+ */
+void EXTI0_IRQHandler(void)
+{
+ UserButtonPressed = 0x01;
+
+ /* Clear the EXTI line pending bit */
+ EXTI_ClearITPendingBit(USER_BUTTON_EXTI_LINE);
+}
+
+/**
+ * @brief This function handles EXTI15_10_IRQ Handler.
+ * @param None
+ * @retval None
+ */
+void OTG_FS_WKUP_IRQHandler(void)
+{
+ if(USB_OTG_dev.cfg.low_power)
+ {
+ /* Reset SLEEPDEEP and SLEEPONEXIT bits */
+ SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
+
+ /* After wake-up from sleep mode, reconfigure the system clock */
+ SystemInit();
+ USB_OTG_UngateClock(&USB_OTG_dev);
+ }
+ EXTI_ClearITPendingBit(EXTI_Line18);
+}
+
+/**
+ * @brief This function handles OTG_HS Handler.
+ * @param None
+ * @retval None
+ */
+void OTG_FS_IRQHandler(void)
+{
+ USBD_OTG_ISR_Handler (&USB_OTG_dev);
+}
+
+/**
+* @brief USBD_HID_GetPos
+* @param None
+* @retval Pointer to report
+*/
+static uint8_t *USBD_HID_GetPos (void)
+{
+ static uint8_t HID_Buffer[4] = {0};
+
+ HID_Buffer[1] = 0;
+ HID_Buffer[2] = 0;
+ /* LEFT Direction */
+ if(((int8_t)Buffer[2]) < -2)
+ {
+ HID_Buffer[1] += CURSOR_STEP;
+ }
+ /* RIGHT Direction */
+ if(((int8_t)Buffer[2]) > 2)
+ {
+ HID_Buffer[1] -= CURSOR_STEP;
+ }
+ /* UP Direction */
+ if(((int8_t)Buffer[0]) < -2)
+ {
+ HID_Buffer[2] += CURSOR_STEP;
+ }
+ /* DOWN Direction */
+ if(((int8_t)Buffer[0]) > 2)
+ {
+ HID_Buffer[2] -= CURSOR_STEP;
+ }
+
+ return HID_Buffer;
+}
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
projects / fw / stlink / blobdiff