hw_config.c

STM32 USB HID键盘

/******************** (C) COPYRIGHT 2009 STMicroelectronics ********************
* File Name          : hw_config.c
* Author             : MCD Application Team
* Version            : V3.0.1
* Date               : 04/27/2009
* Description        : Hardware Configuration & Setup
********************************************************************************
* 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.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "STM32Lib\\stm32f10x.h"
#include "hw_config.h"
#include "STM32Lib\\USBLib\\usb_lib.h"
#include "usb_desc.h"
#include "platform_config.h"
#include "usb_pwr.h"


//输入宏定义
#define IB2	GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_2)

ErrorStatus HSEStartUpStatus;
EXTI_InitTypeDef EXTI_InitStructure;


void GPIO_Configuration(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;

        
	/*允许总线CLOCK,在使用GPIO之前必须允许相应端的时钟.
	从STM32的设计角度上说,没被允许的端将不接入时钟,也就不会耗能,
	这是STM32节能的一种技巧,*/
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);


	/* PB0*/
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;	
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOB, &GPIO_InitStructure);
	
	/* PB2 4*/
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_4;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;	
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOB, &GPIO_InitStructure);


	
	

	
	/* PB5,8,9输出 */
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_8|GPIO_Pin_9;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;	//开漏输出
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOB, &GPIO_InitStructure);

	
	
	/* PC5,7输出*/
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_7;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;	//开漏输出
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOC, &GPIO_InitStructure);
	
	/*PD7,输出*/
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;	//开漏输出
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOD, &GPIO_InitStructure);
	
	/*PA8,输出*/
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;	//开漏输出
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//50M时钟速度
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	
	/* PD3,4,5,6按键输入*/
	GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;		//上拉输入
	GPIO_Init(GPIOD, &GPIO_InitStructure);


	//////////////////////////////////////////////////////////
	if(!IB2)
	{
		GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable, ENABLE);
		// 改变指定管脚的映射 GPIO_Remap_SWJ_Disable SWJ 完全禁用（JTAG+SW-DP）
		//GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable , ENABLE);
		// 改变指定管脚的映射 GPIO_Remap_SWJ_JTAGDisable ，JTAG-DP 禁用 + SW-DP 使能
		GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
		GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
		GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
		GPIO_Init(GPIOA, &GPIO_InitStructure); 
	}

	
	/*
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_Init(GPIOB, &GPIO_InitStructure);

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_Init(GPIOA, &GPIO_InitStructure); 
	*/
	

}

//USB上拉线控,如果上拉生效,USB从设备就关闭
void USB_Cable_Config (FunctionalState NewState)
{
  if (NewState != DISABLE)
  {
    GPIO_ResetBits(GPIOA, GPIO_Pin_13);
  }
  else
  {
    GPIO_SetBits(GPIOA, GPIO_Pin_13);
  }
}

void USB_Configurage(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	
	//USB 用的IO
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
	//USB时钟
	RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);

	
	/* C6-DEV控制口 */
	/*
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
	GPIO_Init(GPIOC, &GPIO_InitStructure);
	*/

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
	GPIO_Init(GPIOA, &GPIO_InitStructure);

	USB_Cable_Config(DISABLE);
	USB_Cable_Config(ENABLE);
	
}

/*******************************************************************************
* Function Name  : Set_System
* Description    : Configures Main system clocks & power.
* Input          : None.
* Return         : None.
*******************************************************************************/
void Set_System(void)
{

	/* Setup the microcontroller system. Initialize the Embedded Flash Interface,  
     initialize the PLL and update the SystemFrequency variable. */
	SystemInit();


	//AFIO时钟
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
	
	/* enable the PWR clock */
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);

	//初始化GPIO部分
	GPIO_Configuration();
	//初始化USB管脚
	USB_Configurage();

  /* 上下左右键盘*/
  
#if 0
//这个是唤醒脚暂时去掉
  /* Connect EXTI Line9 */
  GPIO_EXTILineConfig(GPIO_KEY_PORTSOURCE, GPIO_KEY_PINSOURCE);

  /* Configure EXTI Line9 to generate an interrupt on falling edge */
  EXTI_InitStructure.EXTI_Line = GPIO_KEY_EXTI_Line;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  EXTI_ClearITPendingBit(EXTI_Line18);
  EXTI_InitStructure.EXTI_Line = EXTI_Line18; // USB resume from suspend mode
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  EXTI_ClearITPendingBit(GPIO_KEY_EXTI_Line);
#endif
}


/*******************************************************************************
* Function Name  : Enter_LowPowerMode.
* Description    : Power-off system clocks and power while entering suspend mode.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Enter_LowPowerMode(void)
{
  /* Set the device state to suspend */
  bDeviceState = SUSPENDED;

  /* Clear EXTI Line18 pending bit */
  EXTI_ClearITPendingBit(GPIO_KEY_EXTI_Line);

  /* Request to enter STOP mode with regulator in low power mode */
  PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
}

/*******************************************************************************
* Function Name  : Leave_LowPowerMode.
* Description    : Restores system clocks and power while exiting suspend mode.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Leave_LowPowerMode(void)
{
  DEVICE_INFO *pInfo = &Device_Info;

  /* Enable HSE */
  RCC_HSEConfig(RCC_HSE_ON);

  /* Wait till HSE is ready */
  HSEStartUpStatus = RCC_WaitForHSEStartUp();

  /* Enable PLL */
  RCC_PLLCmd(ENABLE);

  /* Wait till PLL is ready */
  while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
  {}

  /* Select PLL as system clock source */
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

  /* Wait till PLL is used as system clock source */
  while (RCC_GetSYSCLKSource() != 0x08)
  {}

  /* Set the device state to the correct state */
  if (pInfo->Current_Configuration != 0)
  {
    /* Device configured */
    bDeviceState = CONFIGURED;
  }
  else
  {
    bDeviceState = ATTACHED;
  }
}

/*******************************************************************************
* Function Name  : USB_Interrupts_Config.
* Description    : Configures the USB interrupts.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void USB_Interrupts_Config(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;

  /* 2 bit for pre-emption priority, 2 bits for subpriority */
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

  /* USBLP中断 */
  NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  /* USB唤醒*/
  NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
#if 0
//白菜屏蔽
  /* Enable the Key EXTI line Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI_KEY_IRQChannel;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
#endif
}
void Joystick_Send(u8 Keys)
{
 	 u8 Buffer[8] = {0, 0, 0, 0, 0, 0, 0, 0};
  	u8 i;
  	i=2;
 	if(Keys==1)
   	Buffer[i]=30; //Keyboard UpArrow
   
  
 

  /*copy mouse position info in ENDP1 Tx Packet Memory Area*/
  UserToPMABufferCopy(Buffer, GetEPTxAddr(ENDP1), 8);
  /* enable endpoint for transmission */
  SetEPTxValid(ENDP1);
}



/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/