Hi.
about ADS1191. I have a question.
If read adc value when not connect IN1P, IN1N, , is it normal the value is 0x8000??
I got right value of ID register. So i thought operating sensor is no issue.
but read adc value is strange.
under below is code of configuration
// power up
nrf_gpio_cfg_output(RESET_PIN);
nrf_gpio_cfg_output(START_PIN);
nrf_gpio_cfg_output(CLKSEL);
nrf_gpio_pin_clear(RESET_PIN);
nrf_gpio_pin_clear(START_PIN);
nrf_gpio_pin_clear(CLKSEL);
nrf_gpio_pin_set(CLKSEL);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(20);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(1);
nrf_gpio_pin_clear(RESET_PIN);
nrf_delay_ms(1);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(1);
nrf_gpio_pin_set(CLKSEL);
nrf_delay_ms(20);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(1000);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(1);
nrf_gpio_pin_clear(RESET_PIN);
nrf_delay_ms(1);
nrf_gpio_pin_set(RESET_PIN);
nrf_delay_ms(1);
// wirte reg
//WRITE CONFIG1
NRF_LOG_INFO("WRITE CONFIG1");
write_reg_command(tx_buffer, CONFIG1, 0x02); // b0000 0010 500SPS
//WRITE CONFIG2
NRF_LOG_INFO("WRITE CONFIG2");
write_reg_command(tx_buffer, CONFIG2, 0xC0); // b1010 0000
//WRITE LOFF
NRF_LOG_INFO("WRITE LOFF");
write_reg_command(tx_buffer, LOFF, 0x10); // b0001 0000
//WRITE CH1SET
NRF_LOG_INFO("WRITE CH1SET");
write_reg_command(tx_buffer, CH1SET, 0x00); // b0000 0000
//WRITE CH2SET
NRF_LOG_INFO("WRITE CH2SET");
write_reg_command(tx_buffer, CH2SET, 0x00); // b0000 0000
//WRITE RLD_SENS
NRF_LOG_INFO("WRITE RLD_SENS");
write_reg_command(tx_buffer, RLD_SENS, 0x00); // b0000 0000
//WRITE LOFF_SENS
NRF_LOG_INFO("WRITE LOFF_SENS");
write_reg_command(tx_buffer, LOFF_SENS, 0x00); // b0000 0000
//WRITE LOFF_STAT
NRF_LOG_INFO("WRITE LOFF_STAT");
write_reg_command(tx_buffer, LOFF_STAT, 0x00); // b0000 0000
//WRITE MISC1
NRF_LOG_INFO("WRITE MISC1");
write_reg_command(tx_buffer, MISC1, 0x02); // b0000 0010
//WRITE MISC2
NRF_LOG_INFO("WRITE MISC2");
write_reg_command(tx_buffer, MISC2, 0x00); // b0000 0000
//WRITE GPIO
NRF_LOG_INFO("WRITE GPIO");
write_reg_command(tx_buffer, GPIO, 0x0C); // b0000 1100
// Change RDATAC mode
write_command(tx_buffer, START);
write_command(tx_buffer, RDATAC);
//START READ data
write_command(tx_buffer, RDATAC);
