main.c File Reference

---

Detailed Description

Basic SSL (FreeRTOS, lwIP, XYSSL) example for AVR32 UC3.

• Compiler: GNU GCC for AVR32
• Supported devices: All AVR32 devices can be used.
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file main.c.

#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include "pm.h"
#include "flashc.h"
#include "sdramc.h"
#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"
#include "serial.h"
#include "ethernet.h"
#include "netif/etharp.h"
#include "flash.h"
#include "gpio.h"
#include "print_funcs.h"

Go to the source code of this file.

Defines
#define	mainCOM_BAUD_RATE   ( ( unsigned portLONG ) 57600 )
#define	mainCOM_BUFFER_LEN   ( ( unsigned portLONG ) 70 )
#define	mainETH_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )
#define	mainLED_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )
#define	mainRESET_COUNT_ADDRESS   ( ( void * ) 0xC0000000 )
Functions
void	local_start_pll (void)
int	main (void)
	local_start_pll Initialize the microcontroller to it opertational frequency
void	print_lwip_dbg (const char *format,...)

---

Define Documentation

#define mainCOM_BAUD_RATE   ( ( unsigned portLONG ) 57600 )

Definition at line 99 of file main.c.

#define mainCOM_BUFFER_LEN   ( ( unsigned portLONG ) 70 )

Definition at line 100 of file main.c.

#define mainETH_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )

Definition at line 96 of file main.c.

#define mainLED_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )

Definition at line 95 of file main.c.

Referenced by main().

#define mainRESET_COUNT_ADDRESS   ( ( void * ) 0xC0000000 )

Definition at line 104 of file main.c.

---

Function Documentation

void local_start_pll

(

void

)

Definition at line 133 of file main.c.

Referenced by __low_level_init(), and _init_startup().

                           {

    volatile avr32_pm_t *pm = &AVR32_PM;

    // Switch the main clock to OSC0
    pm_switch_to_osc0(pm, FOSC0, OSC0_STARTUP);
    // Setup PLL0 on OSC0, mul=15 ,no divisor, lockcount=16, ie. 12Mhz x 11 = 132MHz output
    pm_pll_setup(pm,    // volatile avr32_pm_t *pm
            0,  // unsigned int pll
            10, // unsigned int mul
            1,  // unsigned int div, Sel Osc0/PLL0 or Osc1/Pll1
            0,  // unsigned int osc
            16);// unsigned int lockcount


    // set PLL options to run @ 96 Mhz
    pm_pll_set_option(pm, // volatile avr32_pm_t *pm
            0, // unsigned int pll
            1, // unsigned int  pll_freq
            1, // unsigned int  pll_div2
            0); // unsigned int  pll_wbwdisable
    // Enable PLL0
    pm_pll_enable(pm, 0);
    // Wait for PLL0 locked
    pm_wait_for_pll0_locked(pm) ;
    // Setup generic clock number 0 on PLL, with OSC0/PLL0, no divisor
    pm_gc_setup(pm, 0, 1, // Use Osc (=0) or PLL (=1)
            0,    // Sel Osc0/PLL0 or Osc1/Pll1
            0, 0);

    // Enable Generic clock 0*/
    pm_gc_enable(pm, 0);

    // set divider to 8 for PBA bus and 2 for PBB 0 for CPU
    pm_cksel(pm, 1, 1, 1, 0, 0, 0);

    // one wait state at 66 Mhz
    flashc_set_wait_state(1);
    /* Output the clock to a gpio(PA7) */
    gpio_enable_module_pin(AVR32_PM_GCLK_0_0_PIN, AVR32_PM_GCLK_0_0_FUNCTION);

    // switch to clock
    pm_switch_to_clock(pm, AVR32_PM_MCCTRL_MCSEL_PLL0);
    
    /* Initialize the SDRAM Controller and the external SDRAM chip. */
    sdramc_init(66000000);
    
}

main

(

void

)

local_start_pll Initialize the microcontroller to it opertational frequency

start the software here 1) Initialize the microcontroller and the shared hardware resources of the board.

Returns:

Note:

2) Launch the IP modules. 3) Start FreeRTOS.

Returns:

42, which should never occur.

Note:

Definition at line 192 of file main.c.

References configMAX_PRIORITIES, mainLED_TASK_PRIORITY, vParTestInitialise(), and vStartEthernetTaskLauncher().

               {

    /* Init rs232 with pba = FOSC0 */
    init_dbg_rs232(66000000/4);
    print_dbg("Init Done\n");
    

    /* Setup the LED's for output. */
    vParTestInitialise();

    /* Start the flash tasks just to provide visual feedback that the demo is
     executing. */
    vStartLEDFlashTasks( mainLED_TASK_PRIORITY);
    print_dbg("vStartLEDFlashTasks :Started\n");

    /* 2) Start the ethernet tasks launcher. */
    vStartEthernetTaskLauncher(configMAX_PRIORITIES);
    print_dbg("vStartEthernetTaskLauncher :Started\n");

    /* 3) Start FreeRTOS. */
    vTaskStartScheduler();

    /* Will only reach here if there was insufficient memory to create the idle task. */

    return 0;
}

void print_lwip_dbg	(	const char *	format,
			...
	)

Definition at line 114 of file main.c.

                                             {
    va_list argp;
    static char str[80];

    va_start(argp, format);
    sprintf(str, format, argp);
    va_end(argp);

    print_dbg(str);
    print_dbg("\n");
}