I'm using WiShield library from: https://github.com/jcmuller/WiShield
What is wrong with this library?
The code:
/*
* Web Server using Flash
*
* A simple web server example using the WiShield 2.0
* that reads the manufacturing ID from the Flash and
* displays it on a webpage.
*/
#include <WiShield.h>
#include <dataflash.h>
#define WIRELESS_MODE_INFRA 1
#define WIRELESS_MODE_ADHOC 2
#define FLASH_SLAVE_SELECT 7
#define WIFI_SLAVE_SELECT 10
// Wireless configuration parameters ----------------------------------------
unsigned char local_ip[] = {192,168,1,2}; // IP address of WiShield
unsigned char gateway_ip[] = {192,168,1,1}; // router or gateway IP address
unsigned char subnet_mask[] = {255,255,255,0}; // subnet mask for the local network
const prog_char ssid[] PROGMEM = {"ASYNCLABS"}; // max 32 bytes
unsigned char security_type = 0; // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2
// WPA/WPA2 passphrase
const prog_char security_passphrase[] PROGMEM = {"12345678"}; // max 64 characters
// WEP 128-bit keys
// sample HEX keys
prog_uchar wep_keys[] PROGMEM = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, // Key 0
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 1
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // Key 3
};
// setup the wireless mode
// infrastructure - connect to AP
// adhoc - connect to another WiFi device
unsigned char wireless_mode = WIRELESS_MODE_INFRA;
unsigned char ssid_len;
unsigned char security_passphrase_len;
//---------------------------------------------------------------------------
unsigned char mfg_id[4];
void setup()
{
initShield();
}
// This is the webpage that is served up by the webserver
const prog_char webpage[] PROGMEM = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"
"<html><body style=\"margin:100px\">"
"<center>"
"<h1>Flash Mfg ID: 000 000 000</h1>"
"<form method=post action=\"/upload\" enctype=\"multipart/form-data\">"
"<b>FS Image Upload</b>"
"<p>"
"<input type=file name=i size=40> <input type=submit value=\"Upload\">"
"</form>"
"</center>"
"</body></html>";
void loop()
{
dflash.read_id(mfg_id);
WiFi.run();
}
void initShield()
{
// there is some contention on the SPI between the flash and wifi chip,
// so disable both devices at the beginning until they are properly
// initialized by their respective libraries
pinMode(FLASH_SLAVE_SELECT, OUTPUT);
digitalWrite(FLASH_SLAVE_SELECT, HIGH);
pinMode(WIFI_SLAVE_SELECT, OUTPUT);
digitalWrite(WIFI_SLAVE_SELECT, HIGH);
// now init dataflash
dflash.init(FLASH_SLAVE_SELECT);
// now init wifi
WiFi.init();
}
asked Jul 7, 2014 at 1:10
Tomir Schmite Jr.Tomir Schmite Jr.
1 Answer 1
I doubt anything is wrong with the library, but in your initShield and loop methods you refer to a variable called 'dflash' which does not seem to be defined anywhere.
answered Jul 7, 2014 at 1:33
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This is the example that comes with the library. No changes. github.com/jcmuller/WiShield/blob/master/examples/Flash/…Tomir Schmite Jr.– Tomir Schmite Jr.2014年07月07日 01:36:14 +00:00Commented Jul 7, 2014 at 1:36
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Interesting; looks like there is no dataflash.h in the repo. Post an issue; the file might not have been committed correctly.alex.forencich– alex.forencich2014年07月07日 02:01:48 +00:00Commented Jul 7, 2014 at 2:01
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1Never mind; you need this library too: github.com/asynclabs/dataflashalex.forencich– alex.forencich2014年07月07日 02:02:44 +00:00Commented Jul 7, 2014 at 2:02
Dataflash dflash;along with your other variables.