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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

Diff: targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/analogin_api.c

Revision:
300:55638feb26a4
Parent:
270:e2babe29baf8
--- a/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/analogin_api.c	Wed Aug 27 04:00:07 2014 +0100
+++ b/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/analogin_api.c	Wed Aug 27 08:45:06 2014 +0100
@@ -29,45 +29,47 @@
     {p4, ADC0_0, 32},
     {p5, ADC0_0, 64},
     {p6, ADC0_0, 128},
-    {NC   , NC    , 0}
+    {NC, NC, 0}
 };
 
-void analogin_init(analogin_t *obj, PinName pin) {
-    int analogInputPin=0;
-    const PinMap *map = PinMap_ADC;
-    
+void analogin_init(analogin_t *obj, PinName pin)
+{
+    int analogInputPin = 0;
+    const PinMap *map  = PinMap_ADC;
+
     obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); //(NRF_ADC_Type *)
     MBED_ASSERT(obj->adc != (ADCName)NC);
-        
+
     while (map->pin != NC) {
-        if (map->pin == pin){
+        if (map->pin == pin) {
             analogInputPin = map->function;
             break;
         }
         map++;
     }
     obj->adc_pin = (uint8_t)analogInputPin;
-    
+
     NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
     NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
-                      (ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling<< ADC_CONFIG_INPSEL_Pos) |
+                      (ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
                       (ADC_CONFIG_REFSEL_SupplyOneThirdPrescaling << ADC_CONFIG_REFSEL_Pos) |
                       (analogInputPin << ADC_CONFIG_PSEL_Pos) |
                       (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
 }
 
-uint16_t analogin_read_u16(analogin_t *obj) {
-    NRF_ADC->CONFIG &= ~ADC_CONFIG_PSEL_Msk;
-    NRF_ADC->CONFIG |= obj->adc_pin << ADC_CONFIG_PSEL_Pos;
+uint16_t analogin_read_u16(analogin_t *obj)
+{
+    NRF_ADC->CONFIG     &= ~ADC_CONFIG_PSEL_Msk;
+    NRF_ADC->CONFIG     |= obj->adc_pin << ADC_CONFIG_PSEL_Pos;
     NRF_ADC->TASKS_START = 1;
-    while ( ( (NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy)
-    {
+    while (((NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy) {
     }
-    
+
     return (uint16_t)NRF_ADC->RESULT; // 10 bit
 }
 
-float analogin_read(analogin_t *obj) {
+float analogin_read(analogin_t *obj)
+{
     uint16_t value = analogin_read_u16(obj);
     return (float)value * (1.0f / (float)ADC_RANGE);
 }