temperature module NRF51822

[kevin chen]

Dear nodic engineer:

i want test environment temperature with NRF51822 inner temperature module. any information for reference? any temp graph? if need calibration? if need extra temp sensor?

kind regards

kevin

[kevin chen]

hi Ole Morten:

        thank you for your great support.

        i have tested nrf6310\temperature_example. at  30(Celsius)
        
        I checked the data.   NRF_TEMP=0x000002AF;   TEMP=0xFFFFFFAC;  
        what's the NRF_TEMP data type? 10bit 2's complement  or 32bit 2's complement? 
       which position is for sign(+/-)?
        result=10 =  10* 0.25 celsius.right?
       how to work out the result of die temperature?

int main(void) { int32_t volatile temp; int32_t temp_valve;

nrf_temp_init();
nrf_gpio_range_cfg_output(8, 15);

while(true)
{       
    NRF_TEMP->TASKS_START = 1;
    while ((NRF_TEMP->EVENTS_DATARDY & TEMP_INTENSET_DATARDY_Msk) != (TEMP_INTENSET_DATARDY_Set << TEMP_INTENSET_DATARDY_Pos))
    {
    }
    NRF_TEMP->EVENTS_DATARDY = 0;
    temp = (nrf_temp_read()/4);
    NRF_TEMP->TASKS_STOP = 1; /* Stop the temperature measurement */

    nrf_gpio_port_write(NRF_GPIO_PORT_SELECT_PORT1, (uint8_t)(temp));

    nrf_delay_ms(500);
}

}

kind regards

kevin chen

from china