Im trying to interface ADXL345 with nrf52DK via I2C. Im using the reference drivers in below link
https://devzone.nordicsemi.com/f/nordic-q-a/40822/adxl345-and-nrf52832
i edited the main function to include twi_handler,
/* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/** @file
* @brief Example template project.
* @defgroup nrf_templates_example Example Template
*
*/
#include <stdbool.h>
#include "SEGGER_RTT.h"
#include "nrf_drv_twi.h"
#include "nrf_delay.h"
#include "app_util_platform.h"
#include "app_error.h"
#include "boards.h"
#include "ADXL375_I2C.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "nrf_gpio.h"
/**
* @brief TWI master instance
*
* Instance of TWI master driver
*
*/
static const nrf_drv_twi_t m_twi_master = NRF_DRV_TWI_INSTANCE(MASTER_TWI_INST);
static int16_t x_val;
static int16_t y_val;
static int16_t z_val;
static volatile bool m_xfer_done;
void twi_handler(nrf_drv_twi_evt_t const * p_event, void * p_context)
{
switch (p_event->type)
{
case NRF_DRV_TWI_EVT_DONE:
if (p_event->xfer_desc.type == NRF_DRV_TWI_XFER_RX)
{
ADXL375_I2C_acc_data_read(&x_val, &y_val, &z_val);
}
m_xfer_done = true;
break;
default:
break;
}
}
/**
* @brief Initialize the master TWI
*
* Function used to initialize master TWI interface that would communicate with simulated EEPROM.
*
* @return NRF_SUCCESS or the reason of failure
*/
static ret_code_t twi_master_init(void)
{
ret_code_t ret;
const nrf_drv_twi_config_t config =
{
.scl = TWI_SCL_M,
.sda = TWI_SDA_M,
.frequency = NRF_TWI_FREQ_400K,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH
};
do
{
ret = nrf_drv_twi_init(&m_twi_master, &config,twi_handler, NULL);
if(NRF_SUCCESS != ret)
{
break;
}
nrf_drv_twi_enable(&m_twi_master);
}while(0);
return ret;
}
/**
* @brief Function for application main entry.
*/
int main(void)
{
ret_code_t ret_code;
ret_code = twi_master_init();
ret_code = ADXL375_I2C_init(&m_twi_master);
ADXL375_I2C_data_rate_set(0x0A);
ADXL375_I2C_offsets_set(0,0,0);
APP_ERROR_CHECK(ret_code);
while (true)
{
m_xfer_done = false;
bsp_board_led_invert(BSP_BOARD_LED_0);
ADXL375_I2C_acc_data_read(&x_val,&y_val,&z_val);
NRF_LOG_INFO(0,"ACC DATA: X: %d Y: %d Z: %d \n", x_val ,y_val, z_val);
NRF_LOG_FLUSH();
nrf_delay_ms(100);
while (!m_xfer_done)
{
__WFE();
}
NRF_LOG_FLUSH();
bsp_board_led_invert(BSP_BOARD_LED_0);
nrf_delay_ms(1000);
// Do nothing.
}
}
/** @} */
,
the control when trying to enable the TWI, enters the twi_enable function, after completing the function last line( at last breakpoint) , goes into NRF_BREAKPOINT COND.
Can you kindly help me resolve this?
wrt sdk settings,
what all should be enabled? what not. such as NRFX_TWIM and NRFX_TWI and TWI
