eb40a_consume.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           : eb40a_consume.c
//* Object              : AT91R40008 Consumption measurement
//* Exported resources  : main
//* Imported resources  : ExecuteTest
//*
//* 1.0 06/08/01	PF  : Creation
//*
//*-----------------------------------------------------------------------------


/*----- Files to be included Definition -----*/

#include <stdio.h>
#include <stdlib.h>
#include "parts/r40008/lib_r40008.h"
#include "targets/eb40a/eb40a.h"

#define CHIP_ID            "AT91R40008"
#define TARGET_ID          "EB40A"

/*----- Types and Constants Definition -----*/
#define PIO_PIN_AS_OUTPUT	0x00BF6DF8	//(P0|P7|P8|P10|P11|P13|P14|P20|P21)
#define PIO_PIN_AS_INPUT	0x01409206	//(P1|P2|P9|P12|P15|P22)

#define	ARM_MODE			0x0
#define	THUMB_MODE			0x1



/*----- Imported Resources Definition -----*/
extern void ExecuteArmTest (void);
extern void ExecuteThumbTest (void);
extern void ExecuteTest (u_int *address, u_int arm);

//* Assembler Interrupt
extern void ext_irq_asm_handler ( void ) ;

//*-----------------------------------------------------------------------------
//* Function Name       : PCA_choice
//* Object              : Peripheral clocks activated or not choice
//* Input Parameters    : string (menu content), integer pointer
//* Output Parameters   : none
//* Functions called    : none
//*-----------------------------------------------------------------------------
void PCA_choice ( void )
//* Begin
{
    int     choice ;

    printf ( "\n\n  1 - All peripheral clocks activated\n" ) ;
    printf ( "  2 - All peripheral clocks deactivated \n" ) ;
	printf ( "  3 - TIMER COUNTER 0 clock activated \n" ) ;
    printf ( "  4 - USART 0 clock activated \n" ) ;
    printf ( "  5 - PIO clock activated \n" ) ;
    printf ( "\n  Enter your choice : By default all peripheral clocks are stopped : " ) ;
    scanf ("%d", &choice ) ;

    switch ( choice )
    {

        case 1 :

			at91_clock_set_mode ( PS_ALL_PERIPH_ACTIVE ) ;

        break ;

        case 2 :

			at91_clock_set_mode ( PS_ALL_PERIPH_INACTIVE ) ;

        break ;

        case 3 :

			at91_clock_set_mode ( PS_ALL_PERIPH_INACTIVE ) ;
            at91_clock_open  ( TC0_ID ) ;

        break ;

        case 4 :

			at91_clock_set_mode ( PS_ALL_PERIPH_INACTIVE ) ;
            at91_clock_open  ( US0_ID ) ;

         break ;

        case 5 :

			at91_clock_set_mode ( PS_ALL_PERIPH_INACTIVE ) ;
            at91_clock_open  ( PIO_ID ) ;

        break ;

        default :

			at91_clock_set_mode ( PS_ALL_PERIPH_INACTIVE ) ;

        break ;
    }
}

//*-----------------------------------------------------------------------------
//* Function Name       : ext_irq_c_handler
//* Object              : External Interrupt C handler
//* Input Parameters    : none
//* Output Parameters   : none
//* Functions called    : None
//*-----------------------------------------------------------------------------
void ext_irq_c_handler ( void )
//* Begin
{

 	int i ;

	StructAIC *aic_pt = AIC_BASE ;

	for ( i = 0; i<8; i++)
	aic_pt->AIC_EOICR = 0xFFFFFFFF ;

    at91_clock_open ( PIO_ID ) ;

}

//*-----------------------------------------------------------------------------
//* Function Name       : main
//* Object              : Main
//* Input Parameters    : none
//* Output Parameters   : none
//*-----------------------------------------------------------------------------

int main(void)
//* Begin
{

    int         resp = 0;
	u_int		*addr_test = 0x0 ;

    //* -- Set up PIOs
    at91_clock_open  ( PIO_ID ) ;
	
	// Set the unconnected and the following PIO pin as OUTPUT to avoid oscillation
    at91_pio_open ( &PIO_DESC, LED_MASK, PIO_OUTPUT ) ;
	at91_pio_write ( &PIO_DESC, LED_MASK,  PIO_SET_OUT ) ;	
	at91_pio_open ( &PIO_DESC, SW_MASK,  PIO_INPUT | PIO_INPUT_IRQ_OFF ) ;	

    //* Enable the IRQ0 in interrupt controller
    at91_extirq_open (&IRQ0_DESC , 7 , AIC_SRCTYPE_EXT_POSITIVE_EDGE , ext_irq_asm_handler ) ;

  for (;;)

  {
   //* Display Utility Header
   printf ( "\n**** %s Consumption Measurement Utility on %s board ****\n", CHIP_ID, TARGET_ID ) ;
   printf ( "\n**** Board running at 66MHz ****\n") ;

        //* Choice menu
        printf ( "\n  1 - Idle mode\n" ) ;
        printf ( "  2 - Internal memory working mode in ARM code\n" ) ;
        printf ( "  3 - Internal memory working mode in Thumb code\n" ) ;
	    printf ( "\n   Enter your choice : " ) ;
	    scanf ("%d", &resp ) ;

		switch ( resp )
		{
			case 1 :

				printf ( "\n\n\n*** Idle mode ***\n" ) ;
				PCA_choice ( ) ;
				printf ( "\n\n*** To return to the main menu, press the SW2/IRQ0 push button  ***\n" ) ;
				at91_clock_set_mode ( PS_MODE_IDLE ) ;

			break ;

			case 2 :

				addr_test = (u_int*)0x10000 ;
				printf ( "\n\n\n**** Internal EXTENDED SRAM memory working mode in ARM code ****\n" ) ;
				PCA_choice ( ) ;
				printf ( "\n\n*** To return to the main menu, press the SW2/IRQ0 push button  ***\n" ) ;
				ExecuteTest ( addr_test, ARM_MODE ) ;

			break ;

			case 3 :

				addr_test = (u_int*)0x10000 ;
				printf ( "\n\n\n**** Internal EXTENDED SRAM memory working mode in THUMB code ****\n" ) ;
				PCA_choice ( ) ;
				printf ( "\n\n*** To return to the main menu, press the SW2/IRQ0 push button  ***\n" ) ;
				ExecuteTest ( addr_test, THUMB_MODE ) ;

			break ;


			default :
            break ;

		}

  } //* End for

  return(0);

}