91x_mc.c

STR912 arm9实现的以太网通信程序

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : 91x_mc.c
* Author             : MCD Application Team
* Version            : V2.0
* Date               : 12/07/2007
* Description        : This file provides all the MC firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/


/* Standard include ----------------------------------------------------------*/
#include "91x_mc.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

#define MC_ODCS_Set    0x0001
#define MC_ODCS_Reset  0x00FE

#define MC_CMS_Set    0x0004
#define MC_CMS_Reset  0x00FB

#define MC_CPC_Set  0x0008
#define MC_CTC_Set  0x0010

#define MC_PCE_Set   0x0020
#define MC_PCE_Reset 0xFFDF

#define MC_TCE_Set   0x0040
#define MC_TCE_Reset 0x00BF

#define MC_DTE_Set   0x0080
#define MC_DTE_Reset 0x007F

#define MC_TCB_Set    0x0004
#define MC_TCB_Reset  0x00FB

#define MC_STC_Set  0x0008

#define MC_TES_Set    0x0010
#define MC_TES_Reset  0x00EF

#define MC_CCPT_Set    0x0020
#define MC_CCPT_Reset  0x005F

#define MC_DISEST_Set    0x0040
#define MC_DISEST_Reset  0x003F

#define MC_DTS_Set    0x0001
#define MC_DTS_Reset  0x00FE

#define MC_SDT_Set    0x0002

#define MC_C0SE_Set    0x0004
#define MC_C0SE_Reset  0x00FB

#define MC_CUSE_Set    0x0008
#define MC_CUSE_Reset  0x00F7 

#define MC_CVSE_Set    0x0010
#define MC_CVSE_Reset  0x00EF

#define MC_CWSE_Set   0x0020
#define MC_CWSE_Reset 0x00D0

#define MC_RSE_Set    0x0040
#define MC_RSE_Reset  0x00BF

#define MC_GPI_Set    0x0080
#define MC_GPI_Reset  0x007F

#define MC_PUH_Set    0x0020
#define MC_PUH_Reset  0x005F
#define MC_PUL_Set    0x0010
#define MC_PUL_Reset  0x006F

#define MC_PVH_Set    0x0008
#define MC_PVH_Reset  0x0077
#define MC_PVL_Set    0x0004
#define MC_PVL_Reset  0x007B

#define MC_PWH_Set    0x0002
#define MC_PWH_Reset  0x007D
#define MC_PWL_Set    0x0001
#define MC_PWL_Reset  0x007E

#define MC_ODS_Set    0x0040
#define MC_ODS_Reset  0xFF3F

#define MC_ESC_Clear  0x4321

#define MC_PCR1_TIN_MASK 0xFFFC
#define MC_OPR_Mask      0x0040 
#define MC_UDCS_Mask     0x0002




/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************
* Function Name  : MC_DeInit
* Description    : Deinitializes MC peripheral registers to their default reset
*                  values.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void MC_DeInit(void)
{      
  /* MC peripheral is under Reset */
  SCU_APBPeriphReset(__MC, ENABLE);

  /* MC peripheral Reset off */
  SCU_APBPeriphReset(__MC, DISABLE);           
}
/*******************************************************************************
* Function Name  : MC_Init
* Description    : Initializes the MC peripheral according to the specified
*                  parameters in the MC_InitStruct .
* Input          : IMC_InitStruct: pointer to a MC_InitTypeDef structure that
*                  contains the configuration information for the MC peripheral.
* Output         : None
* Return         : None
*******************************************************************************/
void MC_Init(MC_InitTypeDef* MC_InitStruct)
{
  /* Select the operating Mode */
  if(MC_InitStruct->MC_OperatingMode == MC_SoftwareOperating_Mode)
   {
     /* Select the Data transfer Mode */
     MC->PCR2 |= MC_DTS_Set;

     /* Enable the registers Software Data Transfer */
     MC->PCR2 |= MC_C0SE_Set | MC_CUSE_Set | MC_CVSE_Set | MC_CWSE_Set 
                 |MC_RSE_Set;
     
   }
   else
   {
     /* Select the Data transfer Mode */
     MC->PCR2 &= MC_DTS_Reset;   

     /* Disable the registers Software Data Transfer */
     MC->PCR2 &= MC_C0SE_Reset | MC_CUSE_Reset | MC_CVSE_Reset | MC_CWSE_Reset 
                 |MC_RSE_Reset;
    }

   /* Select the MC PWM counter Mode */
   if(MC_InitStruct->MC_PWMMode == MC_PWMZeroCentered_Mode)
   {
     MC->PCR0 |= MC_CMS_Set;
   }
   else
   {
     MC->PCR0 &= MC_CMS_Reset;
   }

   /* Set the MC PWM counter Prescaler */
   MC->CPRS = MC_InitStruct->MC_Prescaler;

   /* Set the MC PWM Period */
   MC->CMP0 = MC_InitStruct->MC_Period;

   /* Set the MC PWM Repetition counter */
   MC->REP = MC_InitStruct->MC_RepetitionCounter;

   /* Set the Tacho Compare value */
   MC->TCMP = MC_InitStruct->MC_TachoPeriod;

   /* Set the Tacho Prescaler value */
   MC->TPRS = MC_InitStruct->MC_TachoPrescaler;

   /* Set the MC Tacho Input Polarity */
   MC->PCR1 = (MC->PCR1 & MC_PCR1_TIN_MASK) | MC_InitStruct->MC_TachoPolarity;

   /* Set the MC PWM Forced State */
   MC->OPR |= MC_ODS_Set;
   MC->OPR = (MC->OPR & MC_OPR_Mask) | MC_InitStruct->MC_ForcedPWMState; 
   
   /* Select the Tacho Mode */
   if(MC_InitStruct->MC_TachoMode == MC_TachoOneShot_Mode)
   {
     MC->PCR1 |= MC_TCB_Set;
   }
   else
   {
     MC->PCR1 &= MC_TCB_Reset;
   }

   /* Select the Tacho Event Mode */
   if(MC_InitStruct->MC_TachoEvent_Mode == MC_TachoEvent_Software_Mode)
   {
     MC->PCR1 |= MC_TES_Set;
   }
   else
   {
     MC->PCR1 &= MC_TES_Reset;
   }

   /* Enable or disable the emergency input */
   if(MC_InitStruct->MC_Emergency == MC_Emergency_Enable)
   {
     MC->PCR1 &= MC_DISEST_Reset;
   }
   else
   {
     MC->PCR1 |= MC_DISEST_Set;
   }

/* Select the complementary Mode */
   if(MC_InitStruct->MC_Complementary == MC_Complementary_Enable)
   {
     MC->DTG = MC_InitStruct->MC_DeadTime;
     MC->PCR0 |= MC_ODCS_Set;
   }
   else
   {
     MC->PCR0 &= MC_ODCS_Reset;
   }

   /* Tacho Mode selection */
   if(MC_InitStruct->MC_TachoMode == MC_TachoOneShot_Mode)
   {
     MC->PCR1 |= MC_TCB_Set;
   }
   else
   {
     MC->PCR1 &= MC_TCB_Reset;
   }

   switch(MC_InitStruct->MC_Channel)
   {
     /* Channel U configuration */
     case MC_Channel_U:
     {   
       MC->CMPU = MC_InitStruct->MC_PulseU;

       if(MC_InitStruct->MC_PolarityUL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PUL_Set;
       }
       else
       {
         MC->PSR &= MC_PUL_Reset;
       }
       if(MC_InitStruct->MC_PolarityUH == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PUH_Set;
       }
       else
       {
         MC->PSR &= MC_PUH_Reset;
       }
       break;
     }

     /* Channel V configuration */
     case MC_Channel_V:
     {
       MC->CMPV = MC_InitStruct->MC_PulseV;

       if(MC_InitStruct->MC_PolarityVL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PVL_Set;
       }
       else
       {
         MC->PSR &= MC_PVL_Reset;
       }
       if(MC_InitStruct->MC_PolarityVH == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PVH_Set;
       }
       else
       {
         MC->PSR &= MC_PVH_Reset;
       }
       break;
     }

     /* Channel W configuration */
     case MC_Channel_W:
     {
       MC->CMPW = MC_InitStruct->MC_PulseW;
       
       if(MC_InitStruct->MC_PolarityWL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PWL_Set;
       }
       else
       {
         MC->PSR &= MC_PWL_Reset;
       }
       if(MC_InitStruct->MC_PolarityWH == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PWH_Set;
       }
       else
       {
         MC->PSR &= MC_PWH_Reset;
       }
       break;
     }
     /* All Channel Configuration */
     case MC_Channel_ALL:
     {
       MC->CMPU = MC_InitStruct->MC_PulseU;
       MC->CMPV = MC_InitStruct->MC_PulseV;
       MC->CMPW = MC_InitStruct->MC_PulseW;
       
       if(MC_InitStruct->MC_PolarityUL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PUL_Set;
       }
       else
       {
         MC->PSR &= MC_PUL_Reset;
       }
       if(MC_InitStruct->MC_PolarityUH == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PUH_Set;
       }
       else
       {
         MC->PSR &= MC_PUH_Reset;
       }

       if(MC_InitStruct->MC_PolarityVL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PVL_Set;
       }
       else
       {
         MC->PSR &= MC_PVL_Reset;
       }
       if(MC_InitStruct->MC_PolarityVH == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PVH_Set;
       }
       else
       {
         MC->PSR &= MC_PVH_Reset;
       }

       if(MC_InitStruct->MC_PolarityWL == MC_Polarity_Inverted)
       {
       	 MC->PSR |= MC_PWL_Set;
       }
       else
       {
         MC->PSR &= MC_PWL_Reset;
       }