how to use hardware spi and i2c on S130 softdevice(nRF51822)??

[simon]

Hello,

I am developing a new product using S130 on nRF51822(QFAC). My product use LCD as spi interface and ADXL345 sensor as i2c interface, also test it, works well without softdevice, but when I upload S130 softdevice it goes to h/w fault.

I searched similar problem in this forum, but I cannot find clear solution. Is it possible use hardware spi and i2c on s130 softdevice concurrently?? Please let me know how to handle this problem.

ble_app_uart_on_SDK_v10_0_0.zip

Thanks,

[simon]

I am not using any interrupt, just polling style is used. Okay my codes are below.

twi init code:

void twi_init (void)
{
    ret_code_t err_code;
        const nrf_drv_twi_config_t twi_adxl_345_config = {
       .scl                = POLARIS_SENSOR_SCL,//ARDUINO_SCL_PIN,
       .sda                = POLARIS_SENSOR_SDA,//ARDUINO_SDA_PIN,
       .frequency          = NRF_TWI_FREQ_100K,
       .interrupt_priority = APP_IRQ_PRIORITY_HIGH  // interrupt priority
  };
    err_code = nrf_drv_twi_init(&m_twi_adxl_345, &twi_adxl_345_config, NULL, NULL);
    APP_ERROR_CHECK(err_code);
    nrf_drv_twi_enable(&m_twi_adxl_345);
}

---

spi code:

static void spi_master_init(nrf_drv_spi_t const * p_instance, bool lsb)
{
    uint32_t err_code = NRF_SUCCESS;

    nrf_drv_spi_config_t config =
    {
        .ss_pin       = LCD_CS,//NRF_DRV_SPI_PIN_NOT_USED,
        .irq_priority = APP_IRQ_PRIORITY_LOW,
        .orc          = 0xCC,
        .frequency    = NRF_DRV_SPI_FREQ_125K,
        .mode         = NRF_DRV_SPI_MODE_3,//NRF_DRV_SPI_MODE_0,
        .bit_order    = (lsb ?
            NRF_DRV_SPI_BIT_ORDER_LSB_FIRST : NRF_DRV_SPI_BIT_ORDER_MSB_FIRST),
    };

        config.sck_pin  = LCD_SCK_PIN;//SPIM1_SCK_PIN;
        config.mosi_pin = LCD_MOSI_PIN;//SPIM1_MOSI_PIN;
        config.miso_pin = NRF_DRV_SPI_PIN_NOT_USED;//LCD_MISO_PIN;//SPIM1_MISO_PIN;
        err_code = nrf_drv_spi_init(p_instance, &config,
            NULL);//spi_master_1_event_handler);  
    APP_ERROR_CHECK(err_code);
}

---

the above codes are just init codes.

in spi case, i used it for LCD display, just send data so no need to get data. in twi case, for sensor IC, just read data.

Thank you for your comment.