TMS570LC4357: I am trying to generate sci receive interrupt using Vim module of TMS570LC4357 but unable to generate receive interrupt. The main.c file i have attach below please help me out to generate interrupt.

/** @file HL_sys_main.c 
*   @brief Application main file
*   @date 11-Dec-2018
*   @version 04.07.01
*
*   This file contains an empty main function,
*   which can be used for the application.
*/

/* 
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/* USER CODE BEGIN (0) */
/* USER CODE END */

/* Include Files */

#include "HL_sys_common.h"
#include "HL_system.h"

/* USER CODE BEGIN (1) */
#include "HL_sci.h"
#include "HL_sys_core.h"
#include "HL_esm.h"
#include "HL_sys_vim.h"
#include "string.h"

#define UART sciREG3  // Use SCI3 for communication
void sciNotification(sciBASE_t *sci, uint32 flags);
void check_VIM_interrupts(void);
void check_VIM_dispatch(void);
void sci3_init();
void sci_send_string(sciBASE_t *sci, char *text, uint32 length);
uint8 message[] = "Hello, World!\r\n";

volatile uint8 received_data = 0;
/* USER CODE END */

/** @fn void main(void)
*   @brief Application main function
*   @note This function is empty by default.
*
*   This function is called after startup.
*   The user can use this function to implement the application.
*/

/* USER CODE BEGIN (2) */

/* USER CODE END */

int main(void)
{
/* USER CODE BEGIN (3) */
    systemInit();
    sciInit();  // Initialize SCI (Configured in HALCoGen)
//    sci3_init();  // Initialize SCI3 and enable interrupts
    _enable_interrupt_(); // Enable Global Interrupts

    //     Enable RX Interrupt for SCI3
        sciEnableNotification(sciREG3, SCI_RX_INT);

        ////     Enable SCI3 High Interrupt in VIM (SCI3 High is on Channel 64)
            vimEnableInterrupt(64, SYS_IRQ);
        //

        //Enable IRQ
            _enable_IRQ_interrupt_();

       sciSend(sciREG3, sizeof(message) - 1, message);  // Send message via SCI3

    volatile int i=0;
       while(1) {
//           sciSendByte(sciREG3, 'A');  // Send 'A' via SCI3
//           for ( i = 0; i < 1000000; i++);  // Small delay
//           sciSend(sciREG3, sizeof(message) - 1, message);  // Send message via SCI3
//                 for (i = 0; i < 5000000; i++);  // Small delay
//           if (sciIsRxReady(sciREG3)) {  // Check if data is available
//                       received_data = sciReceiveByte(sciREG3);
//                       sciSendByte(sciREG3, received_data);  // Echo back
//                   }
       }

       return 0;

/* USER CODE END */

//    return 0;
}


/* USER CODE BEGIN (4) */
//void sci3_init() {
//    sciInit();  // HALCoGen generated function
//
////     Enable RX Interrupt for SCI3
//    sciEnableNotification(sciREG3, SCI_RX_INT);
//
////     Enable SCI3 High Interrupt in VIM (SCI3 High is on Channel 64)
//    vimEnableInterrupt(64, SYS_IRQ);
//
////     Enable IRQ
//    _enable_IRQ_interrupt_();
//}

// SCI3 Interrupt Service Routine (ISR)
void sciNotification(sciBASE_t *sci, uint32 flags) {
    if (sci == sciREG3 && (flags & SCI_RX_INT)) {
        received_data = sciReceiveByte(sci);  // Read received byte
        sciSendByte(sci, received_data);      // Echo received byte
    }
}

/* USER CODE END */