Hello, I'm quite new to both the nRF52832 and the Segger Embedded Studio. I have a college project which involves I2C communication with 2 slaves. I was finally able to set up some sort of activity on the SDA and SCL pins, however, it appears that only the slave address gets transmited, no data. Of course I assume that I'm calling the function in the wrong way somehow, but I'm having a hard time understanding thow all the libraries work together. I have compared my code with the one used in the twi_sensor project, but I don't understand what I do wrong. Your help would be much appreciated.
#include <stdio.h>
#include "nrf_delay.h"
#include "nrfx_twi.h"
const nrfx_twi_t m_twi = NRFX_TWI_INSTANCE(0);
const uint8_t address = 0x00;
uint8_t data = 0xAA;
void twi_init(void)
{
const nrfx_twi_config_t twi_config =
{
.scl = 27,
.sda = 26,
.frequency = NRF_TWI_FREQ_100K,
.interrupt_priority = NRFX_TWI_DEFAULT_CONFIG_IRQ_PRIORITY,
.hold_bus_uninit = false,
};
nrfx_twi_init(&m_twi,&twi_config,NULL,NULL);
nrfx_twi_enable(&m_twi);
}
void main(void)
{
twi_init();
while (1)
{
nrfx_twi_tx(&m_twi,address,&data,sizeof(data),false);
nrf_delay_ms(5000);
}
}
Could it be because there is no acknoledge? (I'm probing without a slave to answer, I'm just testing the functions I will need)
