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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Bander F. Ajba
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <stdint.h>
#include "mphalport.h"
#include "hal_temp.h"
#if BLUETOOTH_SD
#include "py/nlr.h"
#include "ble_drv.h"
#include "nrf_soc.h"
#define BLUETOOTH_STACK_ENABLED() (ble_drv_stack_enabled())
#endif // BLUETOOTH_SD
#ifdef HAL_TEMP_MODULE_ENABLED
void hal_temp_init(void) {
// @note Workaround for PAN_028 rev2.0A anomaly 31 - TEMP: Temperature offset value has to be manually loaded to the TEMP module
*(uint32_t *) 0x4000C504 = 0;
}
int32_t hal_temp_read(void) {
#if BLUETOOTH_SD
if (BLUETOOTH_STACK_ENABLED() == 1) {
int32_t temp;
(void)sd_temp_get(&temp);
return temp / 4; // resolution of 0.25 degree celsius
}
#endif // BLUETOOTH_SD
int32_t volatile temp;
hal_temp_init();
NRF_TEMP->TASKS_START = 1; // Start the temperature measurement.
while (NRF_TEMP->EVENTS_DATARDY == 0) {
// Do nothing.
}
NRF_TEMP->EVENTS_DATARDY = 0;
// @note Workaround for PAN_028 rev2.0A anomaly 29 - TEMP: Stop task clears the TEMP register.
temp = (((NRF_TEMP->TEMP & MASK_SIGN) != 0) ? (NRF_TEMP->TEMP | MASK_SIGN_EXTENSION) : (NRF_TEMP->TEMP) / 4);
// @note Workaround for PAN_028 rev2.0A anomaly 30 - TEMP: Temp module analog front end does not power down when DATARDY event occurs.
NRF_TEMP->TASKS_STOP = 1; // Stop the temperature measurement.
return temp;
}
#endif // HAL_TEMP_MODULE_ENABLED
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