Mr-HaleYa
commented
2 years ago They need to add the DieTemp.c and DieTemp.h files into the cores/asr650x/projects/PSoC4/ folder
/*******************************************************************************
* File Name: DieTemp.c
* Version 1.0
*
* Description:
* This file provides the source code of APIs for the DieTemp_P4 component.
*
*******************************************************************************
* Copyright 2013, Cypress Semiconductor Corporation. All rights reserved.
* You may use this file only in accordance with the license, terms, conditions,
* disclaimers, and limitations in the end user license agreement accompanying
* the software package with which this file was provided.
*******************************************************************************/
#include "DieTemp.h"
/*******************************************************************************
* Function Name: DieTemp_CountsTo_Celsius
********************************************************************************
*
* Summary:
* Converts the ADC output to degrees Celsius.
*
* Parameters:
* int32 adcCounts:
* Result from the ADC Conversion
*
* Return:
* Temperature in degrees Celsius
*
* Global variables:
* None
*
*******************************************************************************/
int32 DieTemp_CountsTo_Celsius(int32 adcCounts)
{
int32 tempCelsius;
int32 tInitial;
int32 tAdjust;
int32 offsetReg;
int32 multReg;
offsetReg = (int16)DieTemp_SAR_TEMP_OFFSET_REG;
multReg = (int16)DieTemp_SAR_TEMP_MULTIPLIER_REG;
/* Calculate tInitial in Q16.16 */
tInitial = (adcCounts * multReg) + (offsetReg * DieTemp_SAR_TEMP_OFFSET_MULT);
if(tInitial >= DieTemp_DUAL_SLOPE_CORRECTION)
{
/* Shift (100 - tInitial) by 4 bits to prevent scale-adjustment from overflowing. */
/* Then divide by the integer bits of (100 - cutoff) to end up with a Q16.16 tAdjust */
tAdjust = (DieTemp_SCALE_ADJUSTMENT * (((int32)DieTemp_HIGH_TEMPERATURE - tInitial)
/ (int32)DieTemp_SCALE_ADJUSTMENT_DIVIDER)) /
(((int32)DieTemp_HIGH_TEMPERATURE - (int32)DieTemp_DUAL_SLOPE_CORRECTION) /
DieTemp_SAR_TEMP_DIVIDER);
}
else
{
/* Shift (40 + tInitial) by 4 bits to prevent scale-adjustment from overflowing. */
/* Then divide by the integer bits of (40 + cutoff) to end up with a Q16.16 tAdjust */
tAdjust = ((int32)DieTemp_SCALE_ADJUSTMENT * (((int32)DieTemp_LOW_TEMPERATURE + tInitial)
/ (int32)DieTemp_SCALE_ADJUSTMENT_DIVIDER)) /
(((int32)DieTemp_LOW_TEMPERATURE + (int32)DieTemp_DUAL_SLOPE_CORRECTION) /
(int32)DieTemp_SAR_TEMP_DIVIDER);
}
/* Add tInitial + tAdjust + 0.5 to round to nearest int. Shift off frac bits, and return. */
tempCelsius = tInitial + tAdjust + DieTemp_HALF_OF_ONE;
return (tempCelsius / DieTemp_SAR_TEMP_OFFSET_DIVIDER);
}
/* [] END OF FILE *//*******************************************************************************
* File Name: DieTemp.h
* Version 1.0
*
* Description:
* This file provides constants and parameter values for the DieTemp_P4
* component.
*
********************************************************************************
* Copyright 2013, Cypress Semiconductor Corporation. All rights reserved.
* You may use this file only in accordance with the license, terms, conditions,
* disclaimers, and limitations in the end user license agreement accompanying
* the software package with which this file was provided.
*******************************************************************************/
#if !defined(CY_DIE_TEMP_DieTemp_H)
#define CY_DIE_TEMP_DieTemp_H
#include "cytypes.h"
#include "cyfitter.h"
#include "CyLib.h"
#include "cydevice_trm.h"
/***************************************
* API constants
***************************************/
#define DieTemp_SAR_TEMP_MULTIPLIER_REG (*(reg16 *) CYREG_SFLASH_SAR_TEMP_MULTIPLIER)
#define DieTemp_SAR_TEMP_MULTIPLIER_PTR ( (reg16 *) CYREG_SFLASH_SAR_TEMP_MULTIPLIER)
#define DieTemp_SAR_TEMP_OFFSET_REG (*(reg16 *) CYREG_SFLASH_SAR_TEMP_OFFSET)
#define DieTemp_SAR_TEMP_OFFSET_PTR ( (reg16 *) CYREG_SFLASH_SAR_TEMP_OFFSET)
#define DieTemp_SAR_TEMP_OFFSET_SHIFT (10u)
#define DieTemp_SAR_TEMP_OFFSET_MULT (0x400)
#define DieTemp_SAR_TEMP_OFFSET_DIVIDER (0x10000)
#define DieTemp_SAR_TEMP_SHIFT (16u)
#define DieTemp_SAR_TEMP_DIVIDER (0x10000)
#define DieTemp_SCALE_ADJUSTMENT_DIVIDER (16u)
#define DieTemp_HALF_OF_ONE ((int32)1u << (DieTemp_SAR_TEMP_SHIFT - 1u))
/* (effectively 0.5 << 4u) 0.5 in Q28.4 format */
#define DieTemp_SCALE_ADJUSTMENT (8)
/* 15 in Q16.16 format */
#define DieTemp_DUAL_SLOPE_CORRECTION (0xF0000)
/* 100 in Q16.16 format */
#define DieTemp_HIGH_TEMPERATURE (0x640000)
/* 40 in Q16.16 format */
#define DieTemp_LOW_TEMPERATURE (0x280000)
/***************************************
* Function Prototypes
***************************************/
int32 DieTemp_CountsTo_Celsius(int32 adcCounts);
#endif /* CY_DIE_TEMP_DieTemp_H */
/* [] END OF FILE */then since its using the ASR probably some code in cores/asr650x/cores/ASR_Arduino.h and a corresponding .c file not sure what else they would need to do but it Can be added since like you said the SOC supports it I would personally love to see it since I wouldn't mind an onboard temp sensor even if its technically a die sensor
you could even try doing it yourself with that code and some documentation reading 🤷♂️ 🙃
tkrahn
sysfu
According to the PSoC 4100 family datasheet the micro controller has an internal temperature sensor.
Page 7: Temperature Sensor PSoC 4100 has one on-chip temperature sensor This consists of a diode, which is biased by a current source that can be disabled to save power. The temperature sensor is connected to the ADC, which digitizes the reading and produces a temperature value using Cypress supplied software that includes calibration and linearization.
Is it in any way possible to read it out through the ADC? If so, is there some sample code how to do this?
The reason why I need this is for an extremely light GPS tracker for a small unmanned balloon. We try to save every micro-gram of weight, but temperature would be an important telemetry reading. Therefore external sensors are not an option.