ari stehney / Mbed 2 deprecated TinyBLE-Test-App

My Template app for TinyBLE.

Dependencies:   mbed BLE_API nRF51822 eMPL_MPU6050

battery.h@2:45d3ae0a3b3c, 2020-08-22 (annotated)

Committer:
arils
Date:
Sat Aug 22 02:20:03 2020 +0000
Revision:
2:45d3ae0a3b3c
Parent:
1:cea2f48b1aff 
Template Version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
arils 1:cea2f48b1aff 1
arils 1:cea2f48b1aff 2
arils 1:cea2f48b1aff 3 #ifndef __BATTERY_H__
arils 1:cea2f48b1aff 4 #define __BATTERY_H__
arils 1:cea2f48b1aff 5
arils 1:cea2f48b1aff 6 #include "mbed.h"
arils 1:cea2f48b1aff 7
arils 1:cea2f48b1aff 8 class Battery {
arils 1:cea2f48b1aff 9 public:
arils 1:cea2f48b1aff 10 Battery(PinName pin) {
arils 1:cea2f48b1aff 11 uint32_t n = (uint32_t) pin;
arils 1:cea2f48b1aff 12 channel = 1 << (1 + n);
arils 1:cea2f48b1aff 13 }
arils 1:cea2f48b1aff 14
arils 1:cea2f48b1aff 15 float read() {
arils 1:cea2f48b1aff 16 uint32_t pre_enable_register = NRF_ADC->ENABLE;
arils 1:cea2f48b1aff 17 uint32_t pre_config_register = NRF_ADC->CONFIG;
arils 1:cea2f48b1aff 18
arils 1:cea2f48b1aff 19
arils 1:cea2f48b1aff 20 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
arils 1:cea2f48b1aff 21 NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
arils 1:cea2f48b1aff 22 (ADC_CONFIG_INPSEL_AnalogInputNoPrescaling << ADC_CONFIG_INPSEL_Pos) |
arils 1:cea2f48b1aff 23 (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) |
arils 1:cea2f48b1aff 24 (channel << ADC_CONFIG_PSEL_Pos) |
arils 1:cea2f48b1aff 25 (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
arils 1:cea2f48b1aff 26
arils 1:cea2f48b1aff 27 NRF_ADC->TASKS_START = 1;
arils 1:cea2f48b1aff 28 while (((NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy) {
arils 1:cea2f48b1aff 29 }
arils 1:cea2f48b1aff 30
arils 1:cea2f48b1aff 31 uint16_t value = NRF_ADC->RESULT;
arils 1:cea2f48b1aff 32
arils 1:cea2f48b1aff 33 NRF_ADC->ENABLE = pre_enable_register;
arils 1:cea2f48b1aff 34 NRF_ADC->CONFIG = pre_config_register;
arils 1:cea2f48b1aff 35
arils 1:cea2f48b1aff 36 return (float)value * (1.0f / (float)0x3FF) * 1.2 * 12.2 / 2.2;
arils 1:cea2f48b1aff 37 }
arils 1:cea2f48b1aff 38
arils 1:cea2f48b1aff 39 private:
arils 1:cea2f48b1aff 40 uint32_t channel;
arils 1:cea2f48b1aff 41 };
arils 1:cea2f48b1aff 42
arils 1:cea2f48b1aff 43 #endif // __BATTERY_H__