ezlink_modem_cmd.c

芯科rf资料

/*
** ============================================================================
**
** FILE
**  EZLink_Modem_cmd.c
**
** DESCRIPTION
**  Contains all modem functions		    
**
** CREATED
**  Silicon Laboratories Hungary Ltd
**
** COPYRIGHT
**  Copyright 2008 Silicon Laboratories, Inc.  
**	http://www.silabs.com
**
** ============================================================================
*/

//===============================================================================================
// Radio modem
// ASCIII command interpreter
//===============================================================================================
#include "EZLink_Modem_cmd.h"
#include "Si4421.h" 
						/* =========================================================== *
						 *						GLOBAL variables					   *
						 * =========================================================== */
extern xdata uint8 rf_ch;		//frequency channel select  
extern xdata uint8 rf_pwr;		//rf output power 	
extern xdata uint16 rf_dr;		//data rate select

xdata uint8 cis;            				// CMD interpreter status
xdata uint8 iparam;         				// command parameter, 0-255
xdata uint16 lparam;		  				// command parameter	


/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void CM_init(void)
  +
  + DESCRIPTION:    initialize the character interpreter statemachine
  +
  +	INPUT:			None
  +
  + RETURN:         None
  +
  + NOTES:          None
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

void CMD_init(void)					
{
  cis = 0;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void printAbout(void)
  +
  + DESCRIPTION:    print the firmware information to UART
  +
  +	INPUT:			None
  +
  + RETURN:         None
  +
  + NOTES:          None
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void printAbout(void)			
{
  printf("\n\rEZLink demo(C8051F930 + Si4421)");
  printf("\n\rRadio modem V");
  printf(FW_VERSION);
  printf("\n\rSilicon Labs, 2008\n\r");
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void printOK(void)
  +
  + DESCRIPTION:    print OK to UART
  +
  +	INPUT:			None
  +
  + RETURN:         None
  +
  + NOTES:          None
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/	
void printOK(void)									
{	
  printf("\n\rOK\n\r>");
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void printHelp(void)
  +
  + DESCRIPTION:    print help information to UART
  +
  +	INPUT:			None
  +
  + RETURN:         None
  +
  + NOTES:          None
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void printHelp(void)			 
  {
  printf("\n\rF=n      : Set the rf channel (0-");
  printf(MAX_FREQ);
  printf(")");
  printf("\n\rD=n      : Set the rf datarate (0-32000)");
  printf("\n\rP=n      : Set the rf output power (0-7)");
  printf("\n\rS?       : Print the current settings");
  printf("\n\rI        : Print firmware version information");
  printOK();
  }

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  +
  + FUNCTION NAME:  void CmdExec(char CMD)
  +
  + DESCRIPTION:    CMD character interpreter
  +
  +	INPUT:			CMD - received character form UART
  +
  + RETURN:         None
  +
  + NOTES:          None
  +
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

void CmdExec(char CMD)         		
                                 
  {
  xdata uint16 Frequency_cmd,Data_rate_cmd,Transmitter_control_cmd;

  if ((CMD != '\n') && (CMD != ' '))                            // don't use <space> and <LF>
  switch (cis)                                                  // cis: Command Interpreter Status
    {
    case 0:                                                     // cis=0: basic state
      switch (CMD)
        {
        case '\r':
          printOK();
          break;
        case '?':
          cis = 1;
          break;
        case 'I': case 'i':
          cis = 2;
          break;
        case 'S': case 's':
          cis = 3;
          break;
        case 'F': case 'f':
          cis = 10;
          iparam = 0;
          break;
        case 'D': case 'd':
          cis = 20;
          iparam = 0;
          break;
        case 'P': case 'p':
          cis = 30;
          iparam = 0;
          break;
        default:
          cis = 255;
          break;
        }
      break;
    case 1:                                                     // cis=2: "?" arrived: print help
      if (CMD == '\r')
      {
        printHelp();
        cis = 0;
        break;
	  }
	  else cis = 255;
    break;
    case 2:                                                     // cis=2: "I" arrived: print version info
      if (CMD == '\r')
      {
      	printAbout();
      	cis = 0;
      	break;
      }
	  else cis = 255;	
	break;
    case 3:                                                     // cis=2: "S?" arrived: print current settings
      switch( CMD )
	  {
	  case '=': break;
      case '?': break;
      case '\r': 
	  	printf("\n\rChannel : %bd", rf_ch);
       	printf("\n\rDatarate: %u", rf_dr);
       	printf("\n\rRF power: %bd", rf_pwr);
       	printOK();
       	cis = 0;
       	break;
	  default:
        cis = 255;
		break;
	  }  	
    break;  
	case 10:                                                    // cis=3: "F" arrived: frequency setting
      switch (CMD)
        {
        case '=': break;
        case '0': case '1': case '2': case '3': case '4':
        case '5': case '6': case '7': case '8': case '9':
          iparam = iparam * 10 + CMD - '0';
          break;
        case '\r':
		  if( iparam > FREQ_maxid )
		  {
			iparam = 0;
		  }
		  rf_ch = iparam;
	      Frequency_cmd = set_frq(iparam);
          send_control_command(Frequency_cmd);
          printOK();
          cis = 0;
	      break;
		default:
          cis = 255;
          break;
          }
	break;
    case 20:                                                    // cis=3: "D" arrived: datarate setting
      switch (CMD)
        {
        case '=': break;
        case '0': case '1': case '2': case '3': case '4':
        case '5': case '6': case '7': case '8': case '9':
          lparam = lparam * 10 + CMD - '0';
          
		  break;
        case '\r':
          
		  if ( lparam > 32000) lparam = 32000;
 		  rf_dr = lparam;
		  Data_rate_cmd = set_dr(lparam);
		  send_control_command(Data_rate_cmd);
		  lparam=0;
          printOK();
          cis = 0;
          break;
        default:
          cis = 255;
          break;
        }

      break;
    case 30:                                                    // cis=3: "P" arrived: output power setting
      switch (CMD)
        {
        case '=': break;
        case '0': case '1': case '2': case '3': case '4':
        case '5': case '6': case '7': case '8': case '9':
          iparam = iparam * 10 + CMD - '0';
          break;
        case '\r':
		  	
		  if(iparam > 7) iparam = 7;
		  rf_pwr = iparam;
          Transmitter_control_cmd = set_tx(RF_DEV, iparam);
          send_control_command(Transmitter_control_cmd);
          printOK();
          cis = 0;
          break;
		default:
          cis = 255;
          break;
        }
      break;

    case 255:                                                   // Bad command or parameter
      printf("\n\rERROR\n\r");
      cis = 0;
      break;
    }
  }