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