Colony

/** @file testeeprom.c

 *  @brief tests the eeprom code

 *

 *  stores and retrives a value, then sets it back to what it was

 */

#include <dragonfly_lib.h>

#include "eeprom.h"

#define ADDR 0

int testeeprom(void) {

    unsigned char data, data2;

    int ret;

    int worked=1;

    /* read whats there */

    ret = eeprom_get_byte(ADDR, &data);

    if(ret) {

        usb_puts("Error reading intial value! return code: ");

        usb_puti(ret);

        usb_puts(" data: ");

        usb_puti(data);

        usb_puts("\r\n");

        worked=0;

    }

    else {

        usb_puts("data was: ");

        usb_puti(data);

        usb_puts("\r\n");

    }

    /* write something new */

    ret = eeprom_put_byte(ADDR, 123);

    if(ret) {

        usb_puts("Error writing data! return code: ");

        usb_puti(ret);

        usb_puts("\r\n");

        worked=0;

    }

    else {

        usb_puts("wrote 123\r\n");

    }

    /* check if tis really there */

    ret = eeprom_get_byte(ADDR, &data2);

    if(ret) {

        usb_puts("Error reading second value! return code: ");

        usb_puti(ret);

        usb_puts(" data: ");

        usb_puti(data2);

        usb_puts("\r\n");

        worked=0;

    }

    else {

        if(data2==123) {

            usb_puts("data write and re-read worked!\r\n");

        }

        else {

            usb_puts("data re-read returned 0 but data was ");

            usb_puti(data2);

            usb_puts("\r\n");

            worked=0;

        }

    }

    /* restore old value */

    ret = eeprom_put_byte(ADDR, 123);

    if(ret) {

        usb_puts("Error writing data the second time! return code: ");

        usb_puti(ret);

        usb_puts("\r\n");

        worked=0;

    }

    else {

        usb_puts("re-wrote original data: ");

        usb_puti(data);

        usb_puts("\r\n");

    }

    return worked;

}