135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/*******************************************************************************
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* @file tmp235_q1.c
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* @author CandyPops Co.
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* @version V1.0.0
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* @date 2022-09-05
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* @brief
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******************************************************************************/
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#include "sdk_common.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "nrf.h"
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#include "boards.h"
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#include "app_error.h"
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#include "nrf_drv_saadc.h"
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#include "ble_nus.h"
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#include "tmp235_q1.h"
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#include "main.h"
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#include "meas_pd_48.h"
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#include <cmd_parse.h>
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#include "main_timer.h"
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#include "debug_print.h"
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#define TMP235_REF_VOLTAGE_IN_MILLIVOLTS 600.0f /**< Reference voltage (in milli volts) used by ADC while doing conversion. */
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#define TMP235_PRE_SCALING_COMPENSATION 6.0f /**< The ADC is configured to use VDD with 1/3 prescaling as input. And hence the result of conversion is to be multiplied by 3 to get the actual value of the battery voltage.*/
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#define TMP235_ADC_RES_10BITS 1024.0f /**< Maximum digital value for 10-bit ADC conversion. */
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/**@brief Macro to convert the result of ADC conversion in millivolts.
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*
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* @param[in] ADC_VALUE ADC result.
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*
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* @retval Result converted to millivolts.
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*/
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#define TMP235_VOUT_IN_MILLI_VOLTS(ADC_VALUE)\
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((((ADC_VALUE) * TMP235_REF_VOLTAGE_IN_MILLIVOLTS) / TMP235_ADC_RES_10BITS) * TMP235_PRE_SCALING_COMPENSATION)
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static nrf_saadc_value_t adc_buf;
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extern char ble_tx_buffer[BLE_NUS_MAX_DATA_LEN];
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extern uint8_t ble_bin_buffer[BLE_NUS_MAX_DATA_LEN] ;
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extern which_cmd_t cmd_type_t;
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extern bool info4; //cmd_parse
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extern bool go_temp; //cmd_parse
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extern volatile uint16_t info_temp; //48_C
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extern bool motion_raw_data_enabled;
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/**@brief Function for handling the ADC interrupt.
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*
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* @details This function will fetch the conversion result from the ADC, convert the value into
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* percentage and send it to peer.
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*/
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void tmp235_voltage_handler(nrf_drv_saadc_evt_t const * p_event) /* TMP325 Vout reading */
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{
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float led_temp;
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uint16_t led_temp_16;
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if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
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{
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nrf_saadc_value_t adc_result;
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float tmp235_voltage_in_milli_volts = 0;
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adc_result = p_event->data.done.p_buffer[0];
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nrf_drv_saadc_uninit();
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nrf_drv_saadc_channel_uninit(0);
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tmp235_voltage_in_milli_volts = TMP235_VOUT_IN_MILLI_VOLTS(adc_result);
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if(tmp235_voltage_in_milli_volts <= 1500) {
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led_temp = (tmp235_voltage_in_milli_volts - 500.0f) / 10.0f + 0.0f;
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}else if(tmp235_voltage_in_milli_volts <= 1750) {
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led_temp = (tmp235_voltage_in_milli_volts - 1500.0f) / 10.1f + 100.0f;
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}else if(tmp235_voltage_in_milli_volts <= 2000) {
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led_temp = (tmp235_voltage_in_milli_volts - 1752.5f) / 10.6f + 125.0f;
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}else {
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DBG_PRINTF("ERR!!! Temprature is over 150c\r\n");
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}
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if (info4 == true){
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info_temp =(uint16_t)(led_temp*100);
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}
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else if(cmd_type_t == CMD_UART) {
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DBG_PRINTF("To%.2f\r\n\r\n",led_temp);
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} else if(cmd_type_t == CMD_BLE) {
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led_temp_16 = (uint16_t)(led_temp*100);
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single_format_data(ble_bin_buffer, "rso:", led_temp_16);
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binary_tx_handler(ble_bin_buffer,3);
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// sprintf(ble_tx_buffer, "To%.2f\r\n",led_temp);
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// data_tx_handler(ble_tx_buffer);
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}
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}
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if (info4 == true){
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go_temp = false;
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motion_raw_data_enabled = true;
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main_timer_start();
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}
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}
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void tmp235_init(void)
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{
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ret_code_t err_code = nrf_drv_saadc_init(NULL, tmp235_voltage_handler);
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APP_ERROR_CHECK(err_code);
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nrf_saadc_channel_config_t config =
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NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN3); /* TMP235_Q1 Voltage Output Measurement */
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err_code = nrf_drv_saadc_channel_init(0, &config);
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APP_ERROR_CHECK(err_code);
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err_code = nrf_drv_saadc_buffer_convert(&adc_buf, 1);
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APP_ERROR_CHECK(err_code);
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err_code = nrf_drv_saadc_sample();
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APP_ERROR_CHECK(err_code);
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}
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/* Ta = (Vout – Voffs ) / Tc + Tinfl */
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void tmp235_voltage_level_meas(void)
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{
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tmp235_init();
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//tmp235_uninit();
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}
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