gene_val.c

ARM入门的好帮手.包含了从简单到相对较复杂的程序.

//*----------------------------------------------------------------------------
//*      ATMEL Microcontroller Software Support  -  ROUSSET  -
//*----------------------------------------------------------------------------
//* The software is delivered "AS IS" without warranty or condition of any
//* kind, either express, implied or statutory. This includes without
//* limitation any warranty or condition with respect to merchantability or
//* fitness for any particular purpose, or against the infringements of
//* intellectual property rights of others.
//*----------------------------------------------------------------------------
//* File Name           : gene_val.c
//* Object              : Analog value generation for the AT91EB55
//*
//* 1.0 00/00/00 JCZ    : Creation
//*----------------------------------------------------------------------------

#ifndef AT91_DEBUG_NONE
#include <stdio.h>
#endif

#include "parts/m55800/lib_m55800.h"
#include "targets/eb55/eb55.h"
#include "drivers/analog/analog.h"
#include "lib_tools.h"

extern AnalogDescDac AnalogDac;

// * Local variable
static const char main_menu[]=
{
"\n\r  COMMAND MENU: gene Value\n\r"
"  0)  Info \n\r"
"  1)  Set DC Value \n\r"
"  2)  Set Resolution \n\r"
"  4)  Update DAC 0\n\r"
"  5)  Update DAC 1\n\r"
"  6)  Stop DAC 0\n\r"
"  7)  Stop DAC 1\n\r"
"  8)  Run and init DAC 0 \n\r"
"  9)  Run and init DAC 1 \n\r"
" 99)  Quit program\n\r"
"Enter command to execute: "
};

//*----------------------------------------------------------------------------
//* Function Name       : Get_Command_val
//* Object              : Get command val
//* Input Parameters    : None
//* Output Parameters   : int : Command num
//*----------------------------------------------------------------------------
int Get_Command_val(void)
{
  int command;
  at91_print_frame(&COM,(char *)main_menu,sizeof(main_menu));
  at91_scanf(&COM,"%d", &command);
  at91_print_crlf(&COM);
  return command;
}

//*----------------------------------------------------------------------------
//* Function Name       : menu
//* Object              : check general menu
//* Input Parameters    : None
//* Output Parameters   : None
//*----------------------------------------------------------------------------
void menu_val(void)
{
    int     command = 0;
    int     Value = 0;
    int     dac_res =0;
    int     dac_mode=0;
while(command!=99)
  {
    command = Get_Command_val();
    switch(command)
    {
     case 0:          /*  Info */
         if ( (dac_mode & DAC_8_BIT_RES)== DAC_8_BIT_RES )
         {
             at91_print(&COM,"DAC in 8 bits mode");
         }
         else
         {
             at91_print(&COM,"DAC in 10 bits mode");
         }
         sprintf(message,":%04X \n\r",dac_mode);
         at91_print(&COM,message);
         sprintf(message,"DC Value: %d Hex:%04X \n\r",Value,Value);
         at91_print(&COM,message);
          break;
     case 1:         /* Set DC Value */
         at91_print(&COM,"DC Value (Hex):");
         at91_scanf(&COM,"%X", &Value);
         sprintf(message,"\n\r%d Hex:%04X \n\r",Value,Value);
     at91_print(&COM,message);
         break;

     case 2:         /* Get Resolution */
        at91_print(&COM,"Resolution 0 for 10 bits or 1 for 8 bits:");
        at91_scanf(&COM,"%X", &dac_res);
        if ( dac_res == 1 )
            dac_mode |= DAC_8_BIT_RES;
        else
            dac_mode &= ~DAC_8_BIT_RES;
     break;

    case 4:      /* */
        AnalogDac.dac=&DAC0_DESC;
        at91_analog_write_dac(&AnalogDac, (u_short *)&Value );
        break;
    case 5:      /* */
        AnalogDac.dac=&DAC0_DESC;
        at91_analog_write_dac(&AnalogDac, (u_short *)&Value );
        break;

     case 6:      /* Command Reset */
        AnalogDac.dac=&DAC0_DESC;
        AnalogDac.timer=0;
        at91_analog_close_dac( &AnalogDac);
     break;
     case 7:      /* Command Reset */
        AnalogDac.dac=&DAC1_DESC;
        AnalogDac.timer=0;
        at91_analog_close_dac(&AnalogDac);
     break;

     case 8:      /* */
        AnalogDac.dac=&DAC0_DESC;
        AnalogDac.timer=0;
         at91_analog_open_dac(&AnalogDac,dac_mode);
        at91_analog_write_dac(&AnalogDac, (u_short *)&Value );

       break;
    case 9:      /* */
        AnalogDac.dac=&DAC1_DESC;
        AnalogDac.timer=0;
        at91_analog_open_dac(&AnalogDac,dac_mode);
        at91_analog_write_dac(&AnalogDac, (u_short *)&Value );

    case 99:         /*  quit  */
        break;

    default:         /*  invalid command  */
        at91_print(&COM,"Invalid command entered. Please enter again!\n\r");
    }
  }
}