main.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           : main.c
//* Object              : Test DAC and ADC for the AT91EB55
//*
//* 1.0 25/08/00 JPP    : Creation
//*----------------------------------------------------------------------------

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

#include "parts/m55800/lib_m55800.h"
#include "targets/eb55/eb55.h"

#include "drivers/com/com.h"
#include "drivers/analog/analog.h"

#include "lib_tools.h"
//* for Mcki calculation
#include "drivers/time_rtc/time_rtc.h"

extern void menu_adc_it(void);
extern void menu_sinus(void);
extern void menu_val(void);
extern void menu_adc(void);

//* Global Variable
//* menu management
char message[512];
ComDesc COM;

manage_timer timer_base;

u_int mcki;
//* input / ouput table
u_short sinus_table[4096*2];
u_short input_val[1024] ;

//* ADC and DAC descriptor for polling and interrupt
AnalogAdcIrqDesc it_adc;
AnalogDescAdc desc_analog_adc;
AnalogDACTimerIrqDesc it_timer;
AnalogDescDac AnalogDac;

//* project value for IT management
GetTestValue timer_interrup;

// * Local variable
static const char atmel_header[]=
{
"\n\r\n\r  *** ATMEL DAC And ADC test ***\n\r"
"Copyright (C) 1999 ATMEL Corporations Version: 1.5\n\r"
};
static const char main_menu[]=
{
"\n\r  COMMAND MENU: Base \n\r"
"  0)  Info\n\r"
"  1)  DAC Wave Generation \n\r"
"  2)  DAC Value Generation \n\r"
"  3)  ADC \n\r"
"  4)  ADC It\n\r"
"  5)  Timer config \n\r"
"Enter command to execute: "
};
//*----------------------------------------------------------------------------
//* Function Name       : Get_Command
//* Object              : Get command val
//* Input Parameters    : None
//* Output Parameters   : int : Command num
//*----------------------------------------------------------------------------
int Get_Command(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(void)
{
int      command = 0;

for(;;)
  {
    command = Get_Command();
    switch(command)
    {
     case 0:          /* dac Sinus */
          print_timer_manage();
          at91_print(&COM,"Eb55 hard\n\r");
          at91_print(&COM,"loop DAC0 <-> ADC1 ch 0 & DAC1 <-> ADC0 ch 0\n\r");
          at91_print(&COM,"AD0 TRIG <- TIOA4 & AD1 TRIG <- TIOA5\n\r");
          break;
     case 1:          /* dac Sinus */
          menu_sinus();
          break;
     case 2:         /* dac const value */
          menu_val();
        break;

     case 3:         /* ADC */
          menu_adc();
        break;
     case 4:         /* ADC */
          menu_adc_it();
        break;
     case 5:         /* Timer */
          get_timer_manage();
        break;

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

//*----------------------------------------------------------------------------
//* Function Name       : main
//* Object              : Main function of sinus with led blink
//* Input Parameters    : none
//* Output Parameters   : True
//*----------------------------------------------------------------------------
int main( void )
//* Begin
{
    TimeDescRtc  rtc;
    u_short cd_baud,error;


    //* open terminal for console
    COM.usart=&USART0_DESC;
    error=0;
    //* Open the RTC time
    rtc.rtc_desc=&RTC_DESC;

    at91_time_rtc_open(&rtc);

    // get the mcki
    mcki = at91_time_rtc_mcki(&rtc, &TCB0_DESC );
    cd_baud = at91_baud_com(mcki, 115200);
    error = at91_error_baud_com(mcki, 115200);
    at91_open_com(&COM,(COM_7_BIT|COM_PAR_NONE|COM_NBSTOP_1|COM_FLOW_CONTROL_NONE), cd_baud);


    at91_pio_open ( &PIOB_DESC, LED_MASK, PIO_OUTPUT ) ;

    at91_pio_write (&PIOB_DESC, LED_MASK, LED_OFF ) ;

    timer_base.TC_adc0= &TC3_DESC;
    timer_base.trig_selection_adc0=ADC_TRG_TIOA3;
    timer_base.TC_adc1= &TC5_DESC;
    timer_base.trig_selection_adc1=ADC_TRG_TIOA5;

    timer_base.TC_dac0= &TC1_DESC;
    timer_base.trig_selection_dac0=DAC_TRG_TIOA1;
    timer_base.TC_dac1= &TC2_DESC;
    timer_base.trig_selection_dac1=DAC_TRG_TIOA2;

    at91_print_frame(&COM,(char *)atmel_header,sizeof(atmel_header));
    at91_pio_write (&PIOB_DESC, LED1 , LED_ON ) ;
    menu();

    return(TRUE);
//* End
}