10 years, 4 months ago.

Adafruit CC3000 Wifi Shield + FRDMKL46Z: DHCP configure fail

Hello,

I am trying to get the Adafruit CC3000 Wifi shield working with a freescale FRDM-KL46z. I have been going around and around in circles for days, unable to proceed forward. It seems there are a number of other people asking questions about the Adafruit shield but I can't seem to find anyone one that can confirm it works with mbed.

To get started I am using the basic cc3000_hello_world_demo with the cc3000_hostdriver_mbedsocket library. All lastest versions.

My only changes are as follows:

main.cpp

//SSID & AP_KEY defined above

#elif (MY_BOARD == ADAFRUIT)

SPI spi(PTD6, PTD7, PTD5); //mosi, miso, sclk

cc3000 wifi(PTA12, PTA5, PTD4,spi, SSID, AP_KEY, AP_SECURITY, false); //create the wifi object

Serial pc(USBTX, USBRX);

#else

init.cpp

    NVIC_set_all_irq_priorities(3);

    NVIC_SetPriority(SPI1_IRQn, 0x0);
    NVIC_SetPriority(PORTA_IRQn, 0x1);

    // SysTick set to lower priority than Wi-Fi SPI bus interrupt
    NVIC_SetPriority(SysTick_IRQn, 0x2);

Everything compiles and loads ok. When I reset and run the board. Here is the output I get, with debugging enabled:

I added the message, "while(is_dhcp_configured)" To indicate the the connection failure seems to occur in this while loop.

Things I have checked so far:

1. The board seems to be correctly powered. I checked the current with a multimeter and there seems to be no issues, the board is able to draw enough current. If the KL46Z is plugged into USB the 5v output pin comes straight from the USB according to the schematic. I tried multiple USB ports and computers. Always the same results. Either way the multimeter says the current is OK.

2. I haven't been able to confirm or update the firmware version. However Adafruit claims: "Adafruit CC3000 modules come with either firmware version 1.19 or 1.24." My shield works correctly with an arduino + the adafruit CC3000 library which checks the firmware version before it runs.

3. WPA2 secure wifi & a open wifi. Same results.

4. 3 different wifi routers.

5. I triple checked all the pins, messed around with the NVIC priority and added debug statements all over the library. All to no avail.

Can anyone confirm the adafruit cc3000 shield works with the cc3000_hostdriver_mbedsocket library? With any mbed platform? Anyone manage to make it work with the KL46z or any other freescale platform? Is there a function to read the firmware version? Any ideas to try?