STM32L4 ADC internal channels update

jeromecoutant · jeromecoutant · commit 7fd4203b589f · 2018-05-22T13:18:25.000+02:00
diff --git a/targets/TARGET_STM/TARGET_STM32L4/analogin_device.c b/targets/TARGET_STM/TARGET_STM32L4/analogin_device.c
@@ -35,11 +35,9 @@
 #include "pinmap.h"
 #include "mbed_error.h"
 #include "PeripheralPins.h"
-#include <stdbool.h>
 
 void analogin_init(analogin_t *obj, PinName pin)
 {
-    static bool adc_calibrated = false;
     uint32_t function = (uint32_t)NC;
 
     // ADC Internal Channels "pins"  (Temperature, Vref, Vbat, ...)
@@ -94,8 +92,7 @@ void analogin_init(analogin_t *obj, PinName pin)
     }
 
     // ADC calibration is done only once
-    if (!adc_calibrated) {
-        adc_calibrated = true;
+    if (!HAL_ADCEx_Calibration_GetValue(&obj->handle, ADC_SINGLE_ENDED)) {
         HAL_ADCEx_Calibration_Start(&obj->handle, ADC_SINGLE_ENDED);
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -35,11 +35,9 @@`
`35`	`35`	`#include "pinmap.h"`
`36`	`36`	`#include "mbed_error.h"`
`37`	`37`	`#include "PeripheralPins.h"`
`38`		`-#include <stdbool.h>`
`39`	`38`
`40`	`39`	`void analogin_init(analogin_t *obj, PinName pin)`
`41`	`40`	`{`
`42`		`- static bool adc_calibrated = false;`
`43`	`41`	`uint32_t function = (uint32_t)NC;`
`44`	`42`
`45`	`43`	`// ADC Internal Channels "pins" (Temperature, Vref, Vbat, ...)`
`@@ -94,8 +92,7 @@ void analogin_init(analogin_t *obj, PinName pin)`
`94`	`92`	`}`
`95`	`93`
`96`	`94`	`// ADC calibration is done only once`
`97`		`- if (!adc_calibrated) {`
`98`		`- adc_calibrated = true;`
	`95`	`+ if (!HAL_ADCEx_Calibration_GetValue(&obj->handle, ADC_SINGLE_ENDED)) {`
`99`	`96`	`HAL_ADCEx_Calibration_Start(&obj->handle, ADC_SINGLE_ENDED);`
`100`	`97`	`}`
`101`	`98`	`}`