It seems like if we do delay(t>30) the board will crash.
Serial.println(1), Serial.println(2), ... were inserted for debugging purposes.
If INTERVAL is set to 45:
Code: Select all
Hello, CC3000!
Free RAM: 6876
Initializing...
Attempting to connect to Cisco21623
Connected!
Request DHCP
IP Addr: 192.168.1.141
Netmask: 255.255.255.0
Gateway: 192.168.1.1
DHCPsrv: 192.168.1.1
DNSserv: 75.75.75.75
207.58.139.247INTERVAL:45
1
2
SENT AT:26114
3
4
<console hangs>
However, if INTERVAL is set to 30:
Code: Select all
Hello, CC3000!
Free RAM: 6876
Initializing...
Attempting to connect to Cisco21623
Connected!
Request DHCP
IP Addr: 192.168.1.141
Netmask: 255.255.255.0
Gateway: 192.168.1.1
DHCPsrv: 192.168.1.1
DNSserv: 75.75.75.75
207.58.139.247INTERVAL:30
1
2
SENT AT:27435
3
4
5
1
2
SENT AT:57830
3
4
5
1
2
SENT AT:88304
3
4
1
2
SENT AT:118709
3
4
... (goes on indefinitely)
I've tried testing this code on both the ceramic antenna and the uFL connector version and the bug is consistent in both versions of the shield
Code: Select all
#include <Adafruit_CC3000.h>
#include <ccspi.h>
#include <SPI.h>
#include <string.h>
#include "utility/debug.h"
// These are the interrupt and control pins
#define ADAFRUIT_CC3000_IRQ 3 // MUST be an interrupt pin!
// These can be any two pins
#define ADAFRUIT_CC3000_VBAT 5
#define ADAFRUIT_CC3000_CS 10
// Use hardware SPI for the remaining pins
// On an UNO, SCK = 13, MISO = 12, and MOSI = 11
Adafruit_CC3000 cc3000 = Adafruit_CC3000(ADAFRUIT_CC3000_CS, ADAFRUIT_CC3000_IRQ, ADAFRUIT_CC3000_VBAT,
SPI_CLOCK_DIVIDER); // you can change this clock speed
#define WLAN_SSID "Cisco21623" // cannot be longer than 32 characters!
#define WLAN_PASS "victorDANIEL"
// Security can be WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA or WLAN_SEC_WPA2
#define WLAN_SECURITY WLAN_SEC_WPA2
#define IDLE_TIMEOUT_MS 3000 // Amount of time to wait (in milliseconds) with no data
// received before closing the connection. If you know the server
// you're accessing is quick to respond, you can reduce this value.
// What page to grab!
#define WEBSITE "www.adafruit.com"
#define WEBPAGE "/testwifi/index.html"
/**************************************************************************/
/*!
@brief Sets up the HW and the CC3000 module (called automatically
on startup)
*/
/**************************************************************************/
uint32_t ip;
int INTERVAL = 30;
void setup(void)
{
Serial.begin(9600);
Serial.println(F("Hello, CC3000!\n"));
Serial.print("Free RAM: "); Serial.println(getFreeRam(), DEC);
/* Initialise the module */
Serial.println(F("\nInitializing..."));
if (!cc3000.begin())
{
Serial.println(F("Couldn't begin()! Check your wiring?"));
while(1);
}
// Optional SSID scan
// listSSIDResults();
Serial.print(F("\nAttempting to connect to ")); Serial.println(WLAN_SSID);
if (!cc3000.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY)) {
Serial.println(F("Failed!"));
while(1);
}
Serial.println(F("Connected!"));
/* Wait for DHCP to complete */
Serial.println(F("Request DHCP"));
while (!cc3000.checkDHCP())
{
delay(100); // ToDo: Insert a DHCP timeout!
}
/* Display the IP address DNS, Gateway, etc. */
while (! displayConnectionDetails()) {
delay(1000);
}
ip = 0;
// Try looking up the website's IP address
while (ip == 0) {
if (! cc3000.getHostByName(WEBSITE, &ip)) {
Serial.println(F("Couldn't resolve!"));
}
delay(500);
}
cc3000.printIPdotsRev(ip);
// Optional: Do a ping test on the website
/*
Serial.print(F("\n\rPinging ")); cc3000.printIPdotsRev(ip); Serial.print("...");
replies = cc3000.ping(ip, 5);
Serial.print(replies); Serial.println(F(" replies"));
*/
Serial.print("INTERVAL:");
Serial.println(INTERVAL);
}
void loop() {
/* Try connecting to the website.
Note: HTTP/1.1 protocol is used to keep the server from closing the connection before all data is read.
*/
Serial.println(1);
Adafruit_CC3000_Client www = cc3000.connectTCP(ip, 80);
Serial.println(2);
if (www.connected()) {
www.fastrprint(F("GET "));
www.fastrprint(WEBPAGE);
www.fastrprint(F(" HTTP/1.1\r\n"));
www.fastrprint(F("Host: ")); www.fastrprint(WEBSITE); www.fastrprint(F("\r\n"));
www.fastrprint(F("\r\n"));
www.println();
Serial.print("SENT AT:");
Serial.println(millis());
} else {
Serial.println(F("Connection failed"));
return;
}
Serial.println(3);
www.close();
Serial.println(4);
delay(INTERVAL*1000);
Serial.println(5);
}
/**************************************************************************/
/*!
@brief Begins an SSID scan and prints out all the visible networks
*/
/**************************************************************************/
void listSSIDResults(void)
{
uint8_t valid, rssi, sec, index;
char ssidname[33];
index = cc3000.startSSIDscan();
Serial.print(F("Networks found: ")); Serial.println(index);
Serial.println(F("================================================"));
while (index) {
index--;
valid = cc3000.getNextSSID(&rssi, &sec, ssidname);
Serial.print(F("SSID Name : ")); Serial.print(ssidname);
Serial.println();
Serial.print(F("RSSI : "));
Serial.println(rssi);
Serial.print(F("Security Mode: "));
Serial.println(sec);
Serial.println();
}
Serial.println(F("================================================"));
cc3000.stopSSIDscan();
}
/**************************************************************************/
/*!
@brief Tries to read the IP address and other connection details
*/
/**************************************************************************/
bool displayConnectionDetails(void)
{
uint32_t ipAddress, netmask, gateway, dhcpserv, dnsserv;
if(!cc3000.getIPAddress(&ipAddress, &netmask, &gateway, &dhcpserv, &dnsserv))
{
Serial.println(F("Unable to retrieve the IP Address!\r\n"));
return false;
}
else
{
Serial.print(F("\nIP Addr: ")); cc3000.printIPdotsRev(ipAddress);
Serial.print(F("\nNetmask: ")); cc3000.printIPdotsRev(netmask);
Serial.print(F("\nGateway: ")); cc3000.printIPdotsRev(gateway);
Serial.print(F("\nDHCPsrv: ")); cc3000.printIPdotsRev(dhcpserv);
Serial.print(F("\nDNSserv: ")); cc3000.printIPdotsRev(dnsserv);
Serial.println();
return true;
}
}