Wi-Fi Combo Forum Discussions

I'm having some issues getting NFC to work properly in SDK 3.3.1.  The demo apps (snip.nfc.tag_reader and snip.nfc.tag_writer) work properly on my BCM943341 development board.  However, these example apps call the wiced_nfc_read_tag and wiced_nfc_write_tag APIs forever in a while (1) loop.  I would like to implement these calls in an interrupt-driven fashion, starting by using the two buttons on the demo board.  I placed these two calls in a routine assigned to the hardware worker thread as follows - this routine is called once a second and checks the status of the two buttons:

....

static void nfc_worker ( )

{

    wiced_result_t result;

    int    i;

    WPRINT_APP_INFO (("NFC worker called.  %d\n", timeout++));

    wiced_gpio_output_low( WICED_LED1 );

    wiced_gpio_output_low( WICED_LED2 );

    // NFC Read

    if (start_nfc_read == WICED_TRUE)

    {

        start_nfc_read = WICED_FALSE;

        wiced_gpio_output_high( WICED_LED2 );

        WPRINT_APP_INFO (("Starting NFC Read.\n"));

        /* Reset the buffer_length variable. Note that this is used for both input and output */

        buffer_length = NFC_DATA_LENGTH;

        /* Wait for, and read, and NFC tag */

        result = wiced_nfc_read_tag( buffer, &buffer_length, NFC_READ_TIMEOUT );

        if ( result != WICED_SUCCESS )

        {

            if ( result == WICED_TIMEOUT )

            {

                WPRINT_APP_INFO( ( "Tag not detected\n" ) );

            }

            return;

        }

        WPRINT_APP_INFO( ( "Received %lu bytes:\n", buffer_length ) );

        /* Print the contents of the NFC tag */

        for ( i = 0; i < buffer_length; i++ )

        {

            /* Check if the character is printable, otherwise use hex notation*/

            if ( buffer[ i ] >= 0x20 && buffer[ i ] <= 0x7E )

            {

                WPRINT_APP_INFO( ( "%c", buffer ) );

            }

            else

            {

                WPRINT_APP_INFO( ( "\\%02x", buffer ) );

            }

        }

        WPRINT_APP_INFO( ( "\n" ) );

    }

    else if (start_nfc_write == WICED_TRUE)

    {

        start_nfc_write = WICED_FALSE;

        wiced_gpio_output_high( WICED_LED1 );

        WPRINT_APP_INFO (("Starting NFC Write.\n"));

        WPRINT_APP_INFO( ("\nWaiting for tag...\n") );

        result = wiced_nfc_write_tag( &tag_write_message, NFC_WRITE_TIMEOUT );

        if ( result == WICED_SUCCESS )

        {

            WPRINT_APP_INFO( ("Tag write successful\n") );

            /* Delay for a short time to allow tag to be removed */

            //wiced_rtos_delay_milliseconds( 1000 );

        }

        else if ( result == WICED_TIMEOUT )

        {

            WPRINT_APP_INFO( ( "Tag not detected\n" ) );

        }

    }

}

Ultimately the hardware works and I can read or write an NFC tag but it only works once:  It gets stuck somewhere in the above routine and the design crashes.

Is there a recommended way of calling the NFC tag read and write API?  The NFC stuff appears to run within a separate thread of its own.

Trying to hook up an accelerometer over I2C on the BCM9WCD5EVAL1_2 board.

1. I could not find any header pins where the I2C signals come out.

2. It seems like the IO on this board is at 3V, is there any way to set it up to be 1.8V ?

3. Is this the right sequence to setup I2c

   wiced_i2c_device_t accel =

        {

            .port          = WICED_I2C_1,

            .address       = 0x1d,

            .address_width = I2C_ADDRESS_WIDTH_7BIT,

            .flags         = 0,

            .speed_mode    = I2C_HIGH_SPEED_MODE,

        };

    wiced_i2c_init(&accel);

    if (wiced_i2c_probe_device(&accel, RETRIES) != WICED_TRUE)

       WPRINT_LIB_INFO( ("I2C device not found\n") );

4. Looking through the examples I could not find a way to do a write_read over i2c

    - I saw a wiced_i2c_read and wiced_i2c_write api, but no write_read

5. Is this how would do a write_read ?

    static wiced_i2c_message_t msg[2];

    /* Some I2C masters might not support combined messages. */

    /* Reset device's register counter by issuing a TX. */

    WICED_VERIFY( wiced_i2c_init_tx_message( &msg[0], &reg, sizeof(reg), I2C_XFER_RETRY_COUNT, I2C_DISABLE_DMA ) );

    /* Initialize RX message. */

    WICED_VERIFY( wiced_i2c_init_rx_message( &msg[1], value, sizeof(*value), I2C_XFER_RETRY_COUNT, I2C_DISABLE_DMA ) );

    /* Transfer. */

    return wiced_i2c_transfer( device, msg, ARRAYSIZE( msg ) );

Sajid

Hello,

We have customized SN8205 module and when We'd tested apsta app on this it's working fproperly.

But when we had modified app to our requirement its not working properly.

commented below line in apsta.mk so we can configure device at runtime.

#WIFI_CONFIG_DCT_H := wifi_config_dct.h

Please find below flow of new app:

1) Write config SSID and PASSPHRASE to dct.  

2) Start config interface  

3) Configure module using html pages through phone 

4) Connect to the STA SSID and PASSPHRASE given by user  

5) Write softap SSID and PASSPHRASE to dct

6) Start softap interface

Above all the steps are worked properly.But when i'm trying to connect with softap it's not connecting with my PC or Phone.

Please find attached apsta.c file.

Any help in this case will be appreciated.

Thanks & Regards

prashant

Sunculture-Manish-Kochhal:WICED-SDK-3.4.0-AWS sunculturesolar$ ./make snip.ota_fr-BCM943341WCD1 download download_apps run

Building Bootloader

Building Serial Flash Loader App

waf.sflash_write-NoOS-BCM943341WCD1-SDIO

----------------------------------|---------|---------|

                                  |         |  Static |

              Module              |  Flash  |   RAM   |

----------------------------------+---------+---------|

App                               |       0 |   21126 |

Host MCU-family library           |       0 |   11302 |

Interrupt Vectors                 |       0 |     388 |

libc                              |       0 |     548 |

platform                          |       0 |     908 |

Ring_Buffer                       |       0 |      36 |

SPI_Flash_Library_BCM943341WCD1   |       0 |     924 |

Startup Stack & Link Script fill  |       0 |     486 |

WWD                               |       0 |     174 |

----------------------------------+---------+---------|

TOTAL (bytes)                     |       0 |   35892 |

----------------------------------|---------|---------|

Build complete

Finished Building Bootloader

Finished Building Serial Flash Loader App

snip.ota_fr-BCM943341WCD1

----------------------------------|---------|---------|

                                  |         |  Static |

              Module              |  Flash  |   RAM   |

----------------------------------+---------+---------|

App                               |     293 |       0 |

base64                            |     523 |       0 |

crypto_open                       |   42480 |       0 |

DHCP_Server                       |    1538 |     132 |

DNS                               |      68 |      84 |

Host MCU-family library           |   13972 |    2484 |

Interrupt Vectors                 |     388 |       0 |

libc                              |   33815 |    3136 |

micro_ecc                         |    5850 |       0 |

Networking                        |    4624 |   13184 |

NetX-Duo - Interfaces & Stacks    |       0 |      16 |

OTA_Server                        |    8235 |     684 |

Other                             |   43528 |     535 |

Packet Buffers                    |       0 |   23086 |

platform                          |    1036 |     172 |

RAM Initialisation                |    2428 |       0 |

resources                         |      16 |       0 |

Ring_Buffer                       |      92 |       0 |

SPI_Flash_Library_BCM943341WCD1   |     880 |       0 |

Startup Stack & Link Script fill  |      67 |       7 |

Supplicant - BESL                 |   15431 |     484 |

ThreadX                           |    8596 |     396 |

Wi-Fi Firmware                    |  370096 |       0 |

WICED                             |    2900 |     824 |

WWD                               |   12912 |    3024 |

----------------------------------+---------+---------|

TOTAL (bytes)                     |  567340 |   48248 |

----------------------------------|---------|---------|

Downloading Bootloader ...

Building apps lookup table

No changes detected

Download complete

Downloading DCT ...

Download complete

Downloading Application ...

No changes detected

Download complete

Downloading FR_APP build/snip.ota_fr-BCM943341WCD1/binary/snip.ota_fr-BCM943341WCD1.stripped.elf at sector 1 address 4096...

make[1]: *** [FR_APP_DOWNLOAD] Error 1

make: *** [main_app] Error 2

Sunculture-Manish-Kochhal:WICED-SDK-3.4.0-AWS sunculturesolar$