Managed C++/CLI

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        using (SqlConnection connection = gcnew SqlConnection(connectString))
        {
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/*
 * Project name:
     Can_1st (CAN Network demonstration with mikroE's CAN module)
 * Copyright:
     (c) MikroElektronika, 2005-2008
 * Description:
     This project is a simple demonstration of CAN on PIC18F448 with minor
     adjustments, it should work with any other MCU that has a CAN module.
     This code demonstrates how to use CAN library functions and procedures.
     It is used together with the CAN_2nd example (on second MCU), and it can
     be used to test the connection of MCU to the CAN network.
     This node initiates the communication with the Can_2nd node by sending some
     data to its address. The 2nd node responds by sending back the data incre-
     mented by 1. This (1st) node then does the same and sends incremented data
     back to 2nd node, etc.
 * Test configuration:
     MCU:             PIC18F448
     Dev.Board:       EasyPIC6
                      http://www.mikroe.com/en/tools/easypic6/
     Oscillator:      HS, 8.0000 MHz
     Ext. Modules:    mE CAN extra board on PORTB
                      http://www.mikroe.com/en/tools/can1/
     SW:              mikroC PRO for PIC
                      http://www.mikroe.com/en/compilers/mikroc/pro/pic/
 * NOTES:
     - Consult the CAN standard about CAN bus termination resistance.
     - Turn off LEDs SW9.2 and pull-up (place jumper in upper position)  (board specific)
       lines on PORTB. mE CAN extra board should be connected to PORTB.
     - Turn on LEDs on PORTC (SW9.3) (board specific)
 */

unsigned char Can_Init_Flags, Can_Send_Flags, Can_Rcv_Flags; // can flags
unsigned char Rx_Data_Len;                                   // received data length in bytes
char RxTx_Data[8];                                           // can rx/tx data buffer
char Msg_Rcvd;                                               // reception flag
const long ID_1st = 12111, ID_2nd = 3;                       // node IDs
long Rx_ID;

void main() {

  PORTC = 0;                                                // clear PORTC
  TRISC = 0;                                                // set PORTC as output

  Can_Init_Flags = 0;                                       //
  Can_Send_Flags = 0;                                       // clear flags
  Can_Rcv_Flags  = 0;                                       //

  Can_Send_Flags = _CAN_TX_PRIORITY_0 &                     // form value to be used
                   _CAN_TX_XTD_FRAME &                      //     with CANWrite
                   _CAN_TX_NO_RTR_FRAME;

  Can_Init_Flags = _CAN_CONFIG_SAMPLE_THRICE &              // form value to be used
                   _CAN_CONFIG_PHSEG2_PRG_ON &              // with CANInit
                   _CAN_CONFIG_XTD_MSG &
                   _CAN_CONFIG_DBL_BUFFER_ON &
                   _CAN_CONFIG_VALID_XTD_MSG;
  
  CANInitialize(1,3,3,3,1,Can_Init_Flags);                  // Initialize CAN module
  CANSetOperationMode(_CAN_MODE_CONFIG,0xFF);               // set CONFIGURATION mode
  CANSetMask(_CAN_MASK_B1,-1,_CAN_CONFIG_XTD_MSG);          // set all mask1 bits to ones
  CANSetMask(_CAN_MASK_B2,-1,_CAN_CONFIG_XTD_MSG);          // set all mask2 bits to ones
  CANSetFilter(_CAN_FILTER_B2_F4,ID_2nd,_CAN_CONFIG_XTD_MSG);// set id of filter B2_F4 to 2nd node ID

  CANSetOperationMode(_CAN_MODE_NORMAL,0xFF);               // set NORMAL mode

  RxTx_Data[0] = 9;                                         // set initial data to be sent

  CANWrite(ID_1st, RxTx_Data, 1, Can_Send_Flags);           // send initial message

  while(1) {                                                               // endless loop
    Msg_Rcvd = CANRead(&Rx_ID , RxTx_Data , &Rx_Data_Len, &Can_Rcv_Flags); // receive message
    if ((Rx_ID == ID_2nd) && Msg_Rcvd) {                                   // if message received check id
      PORTC = RxTx_Data[0];                                                // id correct, output data at PORTC
      RxTx_Data[0]++ ;                                                     // increment received data
      Delay_ms(10);
      CANWrite(ID_1st, RxTx_Data, 1, Can_Send_Flags);                      // send incremented data back
    }
  }
}

/*
 * Project name:
     Can_2nd (CAN Network demonstration with mikroE's CAN module)
 * Copyright:
     (c) MikroElektronika, 2005-2008
 * Description:
     This project is a simple demonstration of CAN on PIC18F448 with minor
     adjustments, it should work with any other MCU that has a CAN module.
     This code demonstrates how to use CAN library functions and procedures.
     It is used together with the Can_1st example (on second MCU), and it can
     be used to test the connection of MCU to the CAN network.
     This node receives data, increments it by 1 and send it back to the 1st node.
 * Test configuration:
     MCU:             PIC18F448
     Dev.Board:       EasyPIC6
                      http://www.mikroe.com/en/tools/easypic6/
     Oscillator:      HS, 8.0000 MHz
     Ext. Modules:    mE CAN extra board on PORTB
                      http://www.mikroe.com/en/tools/can1/
     SW:              mikroC PRO for PIC
                      http://www.mikroe.com/en/compilers/mikroc/pro/pic/
 * NOTES:
    - Consult the CAN standard about CAN bus termination resistance.
    - Turn off LEDs SW9.2 and pull-up (place jumper in upper position)  (board specific)
      lines on PORTB. mE CAN extra board should be connected to PORTB.
    - Turn on LEDs on PORTC (SW9.3) (board specific)
 */

unsigned char Can_Init_Flags, Can_Send_Flags, Can_Rcv_Flags; // can flags
unsigned char Rx_Data_Len;                                   // received data length in bytes
char RxTx_Data[8];                                           // can rx/tx data buffer
char Msg_Rcvd;                                               // reception flag
const long ID_1st = 12111, ID_2nd = 3;                       // node IDs
long Rx_ID;

void main() {

  PORTC = 0;                                                // clear PORTC
  TRISC = 0;                                                // set PORTC as output

  Can_Init_Flags = 0;                                       //
  Can_Send_Flags = 0;                                       // clear flags
  Can_Rcv_Flags  = 0;                                       //

  Can_Send_Flags = _CAN_TX_PRIORITY_0 &                     // form value to be used
                   _CAN_TX_XTD_FRAME &                      //     with CANWrite
                   _CAN_TX_NO_RTR_FRAME;

  Can_Init_Flags = _CAN_CONFIG_SAMPLE_THRICE &              // form value to be used
                   _CAN_CONFIG_PHSEG2_PRG_ON &              // with CANInit
                   _CAN_CONFIG_XTD_MSG &
                   _CAN_CONFIG_DBL_BUFFER_ON &
                   _CAN_CONFIG_VALID_XTD_MSG &
                   _CAN_CONFIG_LINE_FILTER_OFF;

  CANInitialize(1,3,3,3,1,Can_Init_Flags);                  // initialize external CAN module
  CANSetOperationMode(_CAN_MODE_CONFIG,0xFF);               // set CONFIGURATION mode
  CANSetMask(_CAN_MASK_B1,-1,_CAN_CONFIG_XTD_MSG);          // set all mask1 bits to ones
  CANSetMask(_CAN_MASK_B2,-1,_CAN_CONFIG_XTD_MSG);          // set all mask2 bits to ones
  CANSetFilter(_CAN_FILTER_B2_F3,ID_1st,_CAN_CONFIG_XTD_MSG);// set id of filter B2_F3 to 1st node ID

  CANSetOperationMode(_CAN_MODE_NORMAL,0xFF);               // set NORMAL mode

  while (1) {                                                              // endless loop
    Msg_Rcvd = CANRead(&Rx_ID , RxTx_Data , &Rx_Data_Len, &Can_Rcv_Flags); // receive message
    if ((Rx_ID == ID_1st) && Msg_Rcvd) {                                   // if message received check id
      PORTC = RxTx_Data[0];                                                // id correct, output data at PORTC
      RxTx_Data[0]++ ;                                                     // increment received data
      CANWrite(ID_2nd, RxTx_Data, 1, Can_Send_Flags);                      // send incremented data back
    }
  }
}