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[NUCLEO_L152RE] Add analogin api

pull/150/head
bcostm 2014-01-16 13:16:35 +01:00
parent ffb7f13018
commit e5b641777a
1 changed files with 14 additions and 26 deletions
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40
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/analogin_api.c
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@ -35,12 +35,12 @@
#include "error.h"
static const PinMap PinMap_ADC[] = {
{PA_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PA_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PA_4, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PB_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PC_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PC_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AIN, 0)},
{PA_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN0
{PA_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN1
{PA_4, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN4
{PB_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN8
{PC_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN11
{PC_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN10
{NC, NC, 0}
};
@ -72,26 +72,14 @@ void analogin_init(analogin_t *obj, PinName pin) {
adc = (ADC_TypeDef *)(obj->adc);
// Enable ADC clock
RCC_ADCCLKConfig(RCC_PCLK2_Div4);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// Configure ADC
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_StructInit(&ADC_InitStructure);
ADC_Init(adc, &ADC_InitStructure);
// Enable ADC
ADC_Cmd(adc, ENABLE);
// Calibrate ADC
ADC_ResetCalibration(adc);
while(ADC_GetResetCalibrationStatus(adc));
ADC_StartCalibration(adc);
while(ADC_GetCalibrationStatus(adc));
}
}
@ -102,28 +90,28 @@ static inline uint16_t adc_read(analogin_t *obj) {
// Configure ADC channel
switch (obj->pin) {
case PA_0:
ADC_RegularChannelConfig(adc, ADC_Channel_0, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_0, 1, ADC_SampleTime_4Cycles);
break;
case PA_1:
ADC_RegularChannelConfig(adc, ADC_Channel_1, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_1, 1, ADC_SampleTime_4Cycles);
break;
case PA_4:
ADC_RegularChannelConfig(adc, ADC_Channel_4, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_4, 1, ADC_SampleTime_4Cycles);
break;
case PB_0:
ADC_RegularChannelConfig(adc, ADC_Channel_8, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_8, 1, ADC_SampleTime_4Cycles);
break;
case PC_1:
ADC_RegularChannelConfig(adc, ADC_Channel_11, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_11, 1, ADC_SampleTime_4Cycles);
break;
case PC_0:
ADC_RegularChannelConfig(adc, ADC_Channel_10, 1, ADC_SampleTime_7Cycles5);
ADC_RegularChannelConfig(adc, ADC_Channel_10, 1, ADC_SampleTime_4Cycles);
break;
default:
return 0;
}
ADC_SoftwareStartConvCmd(adc, ENABLE); // Start conversion
ADC_SoftwareStartConv(adc); // Start conversion
while(ADC_GetFlagStatus(adc, ADC_FLAG_EOC) == RESET); // Wait end of conversion