Hi,
Thanks again for your help.
I try to modify the common.c file to adapt to my microcontroller. I would like to ask you if the structure is correct (not the single function on the code but the general struscture), because when I built the program I have no problem, but then the code returns error. In particular, init_interface function works correctly, but then init funcrion, set_config function ecc return error -2: communication error
static const nrf_drv_twi_t i2c_instance = NRF_DRV_TWI_INSTANCE(0);
BME68X_INTF_RET_TYPE bme68x_i2c_read(uint8_t reg_addr, uint8_t *reg_data, uint32_t len, void *intf_ptr)
{
int8_t err = nrf_drv_twi_rx(&i2c_instance, reg_addr, reg_data, len);
return err;
}
BME68X_INTF_RET_TYPE bme68x_i2c_write(uint8_t reg_addr, const uint8_t *reg_data, uint32_t len, void *intf_ptr)
{
int8_t err = nrf_drv_twi_tx(&i2c_instance, reg_addr, reg_data, len, false);
return err;
}
void bme68x_delay_us(uint32_t period, void *intf_ptr)
{
nrf_delay_us(period);
}
int8_t bme68x_interface_init(struct bme68x_dev *bme, uint8_t intf)
{
int8_t rslt = BME68X_OK;
uint8_t reg_addr;
const uint8_t *reg_data;
uint32_t len;
void *intf_ptr;
if (bme != NULL)
{
/* Bus configuration : I2C */
if (intf == BME68X_I2C_INTF)
{
printf("I2C Interface\n");
dev_addr = BME68X_I2C_ADDR_LOW;
bme->read = bme68x_i2c_read;
bme->write = bme68x_i2c_write;
bme->intf = BME68X_I2C_INTF;
//here I initialize the I2c component
const nrf_drv_twi_config_t i2c_instance_config = { .scl = SCL_PIN,
.sda = SDA_PIN,
.frequency = NRF_TWI_FREQ_100K,
.interrupt_priority = 0};
rslt = nrf_drv_twi_init(&i2c_instance, &i2c_instance_config, NULL, NULL);
if (rslt)
{
printf("Error %d: Initialization of I2C connection failed!\n", rslt);
}
//enable I2c instance
nrf_drv_twi_enable(&i2c_instance);
}
bme->delay_us = bme68x_delay_us;
bme->intf_ptr = &dev_addr;
bme->amb_temp = 25; /* The ambient temperature in deg C is used for defining the heater temperature */
}
else
{
rslt = BME68X_E_NULL_PTR;
}
return rslt;
}
Thanks again
