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nrf: Implement MCU temperature reading

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If softdevice is available and enabled the SD function will be used,
otherwise use MCU registers.
This commit is contained in:
arturo182 2018-02-02 20:33:21 +01:00
parent c6a542d166
commit 6731b47d5a
1 changed files with 37 additions and 2 deletions
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37
ports/nrf/common-hal/microcontroller/Processor.c
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@ -25,11 +25,46 @@
*/ */
#include "common-hal/microcontroller/Processor.h" #include "common-hal/microcontroller/Processor.h"
#include "py/runtime.h"
#ifdef BLUETOOTH_SD
#include "nrf_sdm.h"
#endif
#include "nrf.h"
// TODO port common_hal_mcu_processor
float common_hal_mcu_processor_get_temperature(void) { float common_hal_mcu_processor_get_temperature(void) {
int32_t temp = 0;
#ifdef BLUETOOTH_SD
uint8_t sd_en = 0;
(void) sd_softdevice_is_enabled(&sd_en);
if (sd_en) {
uint32_t err_code = sd_temp_get(&temp);
if (err_code != NRF_SUCCESS) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError,
"Can not get temperature. status: 0x" HEX2_FMT, (uint16_t)err_code));
return 0; return 0;
} }
}
#endif
NRF_TEMP->TASKS_START = 1;
while (NRF_TEMP->EVENTS_DATARDY == 0)
;
NRF_TEMP->EVENTS_DATARDY = 0;
temp = NRF_TEMP->TEMP;
NRF_TEMP->TASKS_STOP = 1;
return temp / 4.0f;
}
uint32_t common_hal_mcu_processor_get_frequency(void) { uint32_t common_hal_mcu_processor_get_frequency(void) {
return 64000000ul; return 64000000ul;