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liumin
2025-07-06 16:12:31 +08:00
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SHARED_INT.C
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//****************************************************************************
// @Module Shared Interrupt Routines
// @Filename SHARED_INT.C
// @Project CL2.0.dav
//----------------------------------------------------------------------------
// @Controller Infineon XC886CLM-8FF
//
// @Compiler Keil
//
// @Codegenerator 1.3
//
// @Description This file contains the Shared interrupt routines.
//
//----------------------------------------------------------------------------
// @Date 2025/6/24 15:47:34
//
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,1)
// USER CODE END
//****************************************************************************
// @Project Includes
//****************************************************************************
#include "SHARED_INT.H"
#include "CAN.H"
// USER CODE BEGIN (SHARED_INT_General,2)
// USER CODE END
//****************************************************************************
// @Macros
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,3)
// USER CODE END
//****************************************************************************
// @Defines
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,4)
// USER CODE END
//****************************************************************************
// @Typedefs
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,5)
// USER CODE END
//****************************************************************************
// @Imported Global Variables
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,6)
// USER CODE END
//****************************************************************************
// @Global Variables
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,7)
// USER CODE END
//****************************************************************************
// @External Prototypes
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,8)
// USER CODE END
//****************************************************************************
// @Prototypes Of Local Functions
//****************************************************************************
// USER CODE BEGIN (SHARED_INT_General,9)
// USER CODE END
//****************************************************************************
// @Function void SHINT_vInit(void)
//
//----------------------------------------------------------------------------
// @Description This function initializes the shared interrupts.
//
//----------------------------------------------------------------------------
// @Returnvalue None
//
//----------------------------------------------------------------------------
// @Parameters None
//
//----------------------------------------------------------------------------
// @Date 2025/6/24
//
//****************************************************************************
// USER CODE BEGIN (SHINT_Init,1)
// USER CODE END
void SHINT_vInit(void)
{
// USER CODE BEGIN (SHINT_Init,2)
// USER CODE END
/// -----------------------------------------------------------------------
/// Configuration of the Shared Interrupts:
/// -----------------------------------------------------------------------
/// - Timer 2 Interrupt is Selected
/// - MultiCAN Node 0 Interrupt is Selected
IEN0 |= 0x20; // load interrupt enable register 0
IEN1 |= 0x00; // load interrupt enable register 1
// USER CODE BEGIN (SHINT_Init,3)
// USER CODE END
} // End of function SHINT_vInit
//****************************************************************************
// @Function void SHINT_viXINTR5Isr(void)
//
//----------------------------------------------------------------------------
// @Description This is the service routine for the shared interrupt node
// XINTR5. XINTR5 ISR Node is shared by Timer 2, UART
// Fractional Divider(BRG Interrupt),MultiCAN Node 0 and LIN.
// Depending on the selected module interrupt it is called.
// T2 - Depending on the selected operating mode it is called
// when TF2 is set by an overflow or underflow of the timer 2
// register or when EXF2 is set by a negative transition on
// T2EX.
// UART - It is called after the BRG timer overflows and sets
// the NDOV bit.
// CAN - It is called for the Service Request Node 0 of the
// MultiCAN module.
// Please note that you have to add application specific code
// to this function.
//
//----------------------------------------------------------------------------
// @Returnvalue none
//
//----------------------------------------------------------------------------
// @Parameters None
//
//----------------------------------------------------------------------------
// @Date 2025/6/24
//
//****************************************************************************
// You have two choices for interrupt type select in Project Settings Page
// under Global Settings Section.
// If you select CHOICE 1 then ISR will be generated with push and pop.
// If you select CHOICE 2 then ISR will be generated without push and pop.
// Default choice is CHOICE 2.
// Current selection is CHOICE 2
// USER CODE BEGIN (SHINT_XINTR5Isr,1)
// USER CODE END
void SHINT_viXINTR5Isr(void) interrupt XINTR5INT
{
ubyte ubNSRL;
ubyte ubNSRH;
ubyte ubResetLEC = 0x3F;
// USER CODE BEGIN (SHINT_XINTR5Isr,2)
// USER CODE END
CAN_pushAMRegs(); // push the CAN Access Mediator Registers
SFR_PAGE(_su0, SST0); // switch to page 0
// Timer 2 interrupt handling section...
if (TF2)
{
// a timer 2 overflow has occured
TF2 = 0;
// USER CODE BEGIN (SHINT_XINTR5Isr,3)
RTCProcess();
// USER CODE END
}
// MultiCAN Node 0 (SRN0) interrupt handling section...
// Check Interrupt Request Register 2 Interrupt Flag 0
if (((IRCON2 & 0x01) != 0))
{
IRCON2 &= ~(ubyte)0x01; // clear CANSRC0
// ---------------------------------------------------------------------
// Interrupts of CAN node 0
// ---------------------------------------------------------------------
CAN_vWriteCANAddress(CAN_NSR0);
CAN_vReadEN();
ubNSRL = CAN_DATA0;
ubNSRH = CAN_DATA1;
// USER CODE BEGIN (SRN0_NODE0,1)
// USER CODE END
// ---------------------------------------------------------------------
// CAN node 0 Alert Interrupt
// ---------------------------------------------------------------------
if (ubNSRL & 0x20) // if ALERT
{
/// Note: The ALERT bit is set upon the occurrence of one ofthe
/// following events. User need to handle these in user defined
/// section.
// BOFF : ubNSRL & 0x80
// Bus OFF
if(ubNSRL & 0x80) {
can_error_cnt = 0x80;
ubNSRL &= ~0x80; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
}
// EWRN : ubNSRL & 0x40
if(ubNSRL & 0x40) {
can_error_cnt = 0x40;
ubNSRL &= ~0x40; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
}
// One of the error counters REC or TEC reached the
// warning limit of 96.
// LLE : ubNSRH & 0x01
// A list length error has been detected during message
// acceptance filtering. The number of elements in the list
// that belongs to this CAN node differs from the list SIZE
// given in the list termination pointer
// LOE : ubNSRH & 0x02
// A list object error has been detected during message
// acceptance filtering. A message object with wrong LIST
// index entry in the Message Object Control Register has
// been detected
// USER CODE BEGIN (SRN0_NODE_0_ALIE,2)
// USER CODE END
}
// USER CODE BEGIN (SRN0_NODE0,8)
// USER CODE END
//// Reset LEC, TXOK, RXOK, ALERT, EWRN, BOFF, LLE, LOE (if set)
CAN_vWriteCANAddress(CAN_NSR0); // Addressing CAN_NSR0
CAN_DATA0 = ~(ubNSRL & ubResetLEC); // load CAN_NSR0 status register[7-0]
CAN_DATA1 = ~(ubNSRH); // load CAN_NSR0 status register[15-8]
CAN_vWriteEN(D0_VALID+D1_VALID); // Data0 and Data1 are Valid for
// transmission and Write is Enabled.
// USER CODE BEGIN (SHINT_XINTR5Isr,6)
// USER CODE END
}
// USER CODE BEGIN (SHINT_XINTR5Isr,7)
// USER CODE END
SFR_PAGE(_su0, RST0); // restore the old SCU page
CAN_popAMRegs(); // restore the CAN Access Mediator Registers
} // End of function SHINT_viXINTR5Isr
// USER CODE BEGIN (SHARED_INT_General,10)
// USER CODE END