9 years, 3 months ago.

Nucleo L152RE Adafruit cc3000 waiting for data loop

Hi there,

I'm having problems with this demo. The program doesn't get past wifi.init(). The call stack looks like this:

main() -->
- cc3000::init()   //wifi.init()
 - cc3000::_wlan.set_event_mask(HCI_EVNT_WLAN_UNSOL_INIT | HCI_EVNT_WLAN_KEEPALIVE | HCI_EVNT_WLAN_ASYNC_PING_REPORT);
    - cc3000_wlan::set_event_mask(uint32_t mask)
       - cc3000_event::simplelink_wait_event(uint16_t op_code, void *ret_param)
         - cc3000_event::hci_event_handler(void *ret_param, uint8_t *from, uint8_t *fromlen)

In the last function call, it gets stuck in the while loop, waiting for the _data_received_flag to change:

uint8_t *cc3000_event::hci_event_handler(void *ret_param, uint8_t *from, uint8_t *fromlen) {
...
  while (1)
  {
     if (_simple_link.get_data_received_flag() != 0) 
     {
	 ...
     }

  }
...
}

I've tried the Adafruit cc3000 wifi board with an Arduino Uno and the Adafruit cc3000 library and it works great every time. So I know the wifi board is good.

I've tried with two different Nucleo L152RE boards and different pins. Same result.

I've also tried with an external 5V power supply for the wifi board and also running on USB 3.0. So I know it's not a power issue.

I also tried not updating libraries on program import, but get the same result.

I updated the firmware on the cc3000 from v1.12 to v1.14 (which I think is the latest), and when I did, it worked a few times and then stopped working again. Which was very strange, but I can't say if it was related to the firmware update.

I haven't changed the code at all, except to add my own cc3000 object construction:

...
#define WIFI_IRQ    D3
#define WIFI_EN     D5
#define WIFI_CS     D10
#define WIFI_MOSI   D11
#define WIFI_MISO   D12
#define WIFI_CLK    D13
...
#elif (MY_BOARD == STM32_L152RE)
cc3000 wifi(WIFI_IRQ, WIFI_EN, WIFI_CS, SPI(WIFI_MOSI, WIFI_MISO, WIFI_CLK), "ssid", "key", WPA2, false);
Serial pc(USBTX, USBRX);
...

I've also tried connecting without security and on two different networks and routers.

It seems similar to problems that others have had:

http://developer.mbed.org/questions/3878/waiting-for-IRQ-in-WLAN-init/

http://developer.mbed.org/questions/4997/Nucleo-with-CC3000/

Were these ever definitively resolved? Or did they just start working somehow? Should I try different code revisions?

Please help. Am I missing something? One thing is my init() in init.cpp is empty. But not sure what should be done in here for the L152RE board.

Question relating to:

Last updated: 03 Jun 2014

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Martin Kojtal / cc3000_hello_world_demo

cc3000 hello world demo CC3000, hello, wifi, world