WIZnet / Mbed 2 deprecated HTTP_SDCard_File_Server_WIZwiki-W7500 Featured

HTTP SD Card File Server

Dependencies:   SDFileSystem WIZnetInterface mbed

Fork of HTTP_SD_Server_K64F by FRDM-K64F Code Share

Prerequisite

This Program is the example how to show SD card file list with web-browser for WIZwiki-W7500.

To implement this function, you need a Platform board, network Interface board and SD card. Below are what we used.

  • WIZwiki-W7500 from WIZnet (Platform board and Ethernet I/F board)
  • SD card

Hardware Configuration

WIZwiki-W7500 Pin map

pin map

Software

SPI Initialization

main.cpp

SDFileSystem sd(PB_3, PB_2, PB_1, PB_0, "sd");

Refer to ....

muri.cpp

Committer:
gsteiert
Date:
2013-09-07
Revision:
0:28bc7ce77e20
Child:
1:64f023138627

File content as of revision 0:28bc7ce77e20:

#include "mbed.h"
#include "muri.h"

I2C i2c(p28, p27);


void cmd_i2c_write(char* qry, char* data, char* resp)
{
    int addr = 0;
    int dlen = 0;
    int dtmp = 0;
    if (sscanf(qry, "?%2x", &addr) == 1) {
        qry += 3;
        while (sscanf(qry, "&%2x", &dtmp) == 1) {
            data[dlen] = dtmp;
            qry +=3;
            dlen +=1;
        }
    } else {
        dlen = -1;
    }
    if (dlen > 0 ) {
        i2c.write(addr, data, dlen);
        sprintf(resp,"200 %d\r\n", dlen);
    } else {
        if (dlen == 0) {
            sprintf(resp,"204 No data to write: %s\r\n", qry);
        } else {
            sprintf(resp,"400 Invalid parameters: %s\r\n", qry);

        }
    }
}

void cmd_i2c_read(char* qry, char* data, char* resp)
{
    int addr = 0;
    int dlen = 0;
    int dcnt = 0;
    if (sscanf(qry, "?%2x", &addr) == 1) {
        qry += 3;
        if (sscanf(qry, "&%2x", &dlen) == 1) {
            if (i2c.read(addr, data, dlen)!=0) {
                dlen = -1;
                sprintf(resp, "500 I2C read failed\r\n");
            }
        } else {
            sprintf(resp, "400 Invalid data length: %s\r\n", qry);
        }
    } else {
        dlen = -1;
        sprintf(resp, "400 Invalid address: %s\r\n", qry);
    }
    if (dlen > 0) {
        sprintf(resp,"200");
        resp += 3;
        for (dcnt = 0; dcnt < dlen; dcnt++) {
            sprintf(resp," %02x", data[dcnt]);
            resp +=3;
        }
    }
}

void cmd_i2c_addr_read(char* qry, char* data, char* resp)
{
    int addr = 0;
    int radd = 0;
    int dlen = 0;
    int dcnt = 0;
    if (sscanf(qry, "?%2x", &addr) == 1) {
        qry += 3;
        if (sscanf(qry, "&%2x", &radd) == 1) {
            qry += 3;
            if (sscanf(qry, "&%2x", &dlen) == 1) {
                data[0] = radd;
                i2c.write(addr, data, 1, false);
                if (i2c.read(addr, data, dlen)!=0) {
                    dlen = -1;
                    sprintf(resp, "500 I2C read failed\r\n");
                }
            } else {
                sprintf(resp, "400 Invalid data length: %s\r\n", qry);
            }
        } else {
            dlen = -1;
            sprintf(resp, "400 Invalid register address: %s\r\n", qry);
        }
    } else {
        dlen = -1;
        sprintf(resp, "400 Invalid address: %s\r\n", qry);
    }
    if (dlen > 0) {
        sprintf(resp,"200");
        resp += 3;
        for (dcnt = 0; dcnt < dlen; dcnt++) {
            sprintf(resp," %02x", data[dcnt]);
            resp +=3;
        }
    }
}


void muri(char* uri, char* data, char* resp)
{
//    sprintf(resp, "501 %s", uri);
//}
//void get_cgi(char* uri, char* qry)
//{
    char *qry;
    printf("muri uri:  %s\n", uri);
    qry = strstr(uri, "?");
    if (!strncmp(uri, "i2cw?", 5)) { // i2cW [addr] [data] [data] [data] ...
        cmd_i2c_write(qry, data, resp);
    } else if (!strncmp(uri, "i2cr?", 5)) { // i2cR [addr] [count]
        cmd_i2c_read(qry, data, resp);
    } else if (!strncmp(uri, "i2car?", 6)) { // i2cAR [addr] [radd] [count]
        cmd_i2c_addr_read(qry, data, resp);
    } else {
        sprintf(resp, "501 %s", uri);
    }
    printf("muri resp:  %s\n", resp);
}