Arduino Uno with CC3000 WiFi Shield cannot be initialized

Question

I am working on an Arduino Uno and CC3000 WiFi shield. I interfaced it over my Arduino and added the SparkFun library SFE_CC3000_Library. Then I opened the TestBoard example, but it hangs on setup in the first command wifi.init().

How can I solve this problem, and how can I enable debug mode?

Here's the code

#include <SPI.h>
#include <SFE_CC3000.h>
#include <utility/netapp.h>
#define DEBUG 1
// Pins
#define CC3000_INT 2 // Needs to be an interrupt pin (D2/D3)
#define CC3000_EN 7 // Can be any digital pin
#define CC3000_CS 10 // Preferred is pin 10 on Uno
// Constants
#define FW_VER_LEN 2 // Length of firmware version in bytes
#define MAC_ADDR_LEN 6 // Length of MAC address in bytes
// Global Variables
SFE_CC3000 wifi = SFE_CC3000(CC3000_INT, CC3000_EN, CC3000_CS);
void setup() {
 int i;
 unsigned char fw_ver[FW_VER_LEN];
 unsigned char mac_addr[MAC_ADDR_LEN];
 // Initialize Serial port
 Serial.begin(115200);
 Serial.println();
 Serial.println("----------------------------");
 Serial.println("SparkFun CC3000 - Board Test");
 Serial.println("----------------------------");
 // Initialize CC3000 (configure SPI communications)
 if ( wifi.init() ) {
 digitalWrite(13, HIGH);
 Serial.println("CC3000 initialization complete");
 } else {
 Serial.println("Something went wrong during CC3000 init!");
 }
 // Read and display CC3000 firmware version
 if ( wifi.getFirmwareVersion(fw_ver) ) {
 Serial.print("Firmware version: ");
 Serial.print(fw_ver[0], DEC);
 Serial.print(".");
 Serial.print(fw_ver[1], DEC);
 Serial.println();
 } else {
 Serial.println("Could not read firmware version from CC3000");
 } 
 // Read and display CC3000 MAC address
 if ( wifi.getMacAddress(mac_addr) ) {
 Serial.print("MAC address: ");
 for ( i = 0; i < MAC_ADDR_LEN; i++ ) {
 if ( mac_addr[i] < 0x10 ) {
 Serial.print("0");
 }
 Serial.print(mac_addr[i], HEX);
 if ( i < MAC_ADDR_LEN - 1 ) {
 Serial.print(":");
 }
 }
 Serial.println();
 } else {
 Serial.println("Could not read MAC address from CC3000");
 } 
 // Done!
 Serial.println("Finished board test");
}
void loop() {
 // Do nothing
 delay(1000);
 Serial.println("Loop_Problem");
 }

Answer 1

Solved it, the problem was because the SparkFun library was not working with my shield. I replaced it using the Adafruit_CC3000_Library and now it works fine.

Answer 2

I was having the same problem with the ethernet shield (and i still have it). In my case it was caused by the network router. When my modem/router couldn't connect to the net (bad weather etc...) the shield couldn't take an IP and the initialaization was failing every time just because i was disconnected from the internet. The library works almost the same way. Basicaly you have to make sure it can connect.

• Mostafa Khattab: Thanks for sharing solution with me. I solved it using another library. Solution is shared above.