Enabling TWIM I2C on nRF52810 DK

Question

I am currently working on enabling and transmitting/receiving data using TWIM on my nRF52810 development kit. The documentation states that in order to enable TWIM I need to provide a pointer to a structure containing the registers of the peripheral as seen below: 
 
 Unfortunately I am unsure how I can initialize this structure. Is there a function that returns an initialized NRF_TWIM_Type or do I need to manually create the structure myself. Thank you in advance and apologies if this is a dumb question

YaroslavRakhnenko · Answer

Hope this will help you. Mine code for nRF52810: 
 #include "nrf_drv_twi.h"
#include "nrfx_twim.h"

/**
 *Pins
 */
#define SCL_PIN 14
#define SDA_PIN 12

/**
 *Create TWI instance.
 */
#define TWI_INSTANCE_ID 0

static const nrfx_twim_t m_twi = NRFX_TWIM_INSTANCE(TWI_INSTANCE_ID);

/**
 * @brief Function for i2c bus init.
 * @param none
 * @return none
 */
void twi_init()
{
 ret_code_t err_code;

const nrfx_twim_config_t twi_config = {
 .scl = SCL_PIN,
 .sda = SDA_PIN,
 .frequency = NRF_TWIM_FREQ_400K,
 .interrupt_priority = APP_IRQ_PRIORITY_HIGH,
 .hold_bus_uninit = false
 };

err_code = nrfx_twim_init(&m_twi, &twi_config, NULL, NULL); // initialize I2C
 APP_ERROR_CHECK(err_code);

nrfx_twim_enable(&m_twi); // enable I2C
}

/**
 * @brief Function to write one byte into XXXXX register at specified register address
 * @param 16 bit register address + 1 byte of data to be written
 * @return true if transmission was successful, otherwise false
 */
bool XXXXX_register_write_byte(uint8_t register, uint8_t value)
{
 ret_code_t err_code;

uint8_t tx_buffer[2]; // buffer to hold registry address + data

tx_buffer[0] = register; // register address byte
 tx_buffer[1] = value; // value to write

while (nrfx_twim_is_busy(&m_twi)) { }
 err_code = nrfx_twim_tx(&m_twi, your_dev_addr, tx_buffer, sizeof(tx_buffer), false);

if (NRF_SUCCESS != err_code) {
 return false;
 }
 return true;
} 
 
 and sdk_config:

Enabling TWIM I2C on nRF52810 DK

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