main.c

#include <stdio.h>
#include <stddef.h>
#include <stdbool.h>
#include <string.h>

#include "mxc_config.h"
#include "mxc_sys.h"
#include "mxc_delay.h"
#include "flc.h"
#include "icc.h"
#include "crc.h"
#include "board.h"
#include "led.h"
#include "ff.h"
#include "crc16-ccitt.h"


#define GPIO_PORT_IN                PORT_1
#define GPIO_PIN_IN                 PIN_6


#define PARTITION_START (0x10000000 + 64 * 1024)
#define PARTITION_END (0x10000000 + 512 * 1024 - 1) /* TODO: check if 1 MB also works. Might have to enable the second bank */
//#define PARTITION_END (0x10000000 + 1024 * 1024 - 1)

extern void run_usbmsc(void);

DIR dir;
FATFS FatFs;

bool mount(void)
{
    FRESULT res;
    res=f_mount(&FatFs,"/",0);
    if(res != FR_OK) {
        printf("f_mount error %d\n", res);
        return false;
    }

    res = f_opendir(&dir, "0:");
    if(res != FR_OK) {
        printf("f_opendir error %d\n", res);
        return false;
    }

    return true;
}

bool check_integrity(void)
{
    FIL file;
    UINT readbytes;
    char *filename = "card10.bin";
    uint8_t data[512];
    FRESULT res;

    res=f_open(&file, filename, FA_OPEN_EXISTING|FA_READ);
    if(res != FR_OK) {
        printf("f_open error %d\n", res);
        return false;
    }

    uint16_t crcval = 0;
    do {
        res = f_read(&file, data, sizeof(data), &readbytes);
        if(res != FR_OK) {
            printf("f_read error %d\n", res);
            crcval = 1; // Make sure to fail the test
            break;
        }