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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3500 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2011-11-16 18:55:34 +00:00
parent 0435bb5b4e
commit cef04f5f4b
3 changed files with 42 additions and 24 deletions
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31
os/hal/platforms/STM32F4xx/adc_lld.c
View File

@ -321,17 +321,16 @@ void adc_lld_start_conversion(ADCDriver *adcp) {
/* ADC setup.*/
adcp->adc->SR = 0;
adcp->adc->CR1 = grpp->cr1 | ADC_CR1_OVRIE | ADC_CR1_SCAN;
adcp->adc->SMPR1 = grpp->smpr1; /* Writing SMPRx requires ADON=0. */
adcp->adc->SMPR2 = grpp->smpr2;
adcp->adc->CR2 = grpp->cr2 | ADC_CR2_CONT | ADC_CR2_DMA | ADC_CR2_DDS |
ADC_CR2_ADON;
adcp->adc->SMPR1 = grpp->smpr1;
adcp->adc->SMPR2 = grpp->smpr2;
adcp->adc->SQR1 = grpp->sqr1;
adcp->adc->SQR2 = grpp->sqr2;
adcp->adc->SQR3 = grpp->sqr3;
/* Must wait the ADC to be ready for conversion, see 9.3.6 "Timing diagram"
in the Reference Manual.*/
while ((adcp->adc->SR & ADC_SR_ADONS) == 0)
;
/* TODO: According to section 10.3.6 of the reference manual there should
be a 2uS delay between the ADC activation and conversion start.*/
/* ADC start by raising ADC_CR2_SWSTART.*/
adcp->adc->CR2 = grpp->cr2 | ADC_CR2_SWSTART | ADC_CR2_CONT | ADC_CR2_DMA |
ADC_CR2_DDS | ADC_CR2_ADON;
@ -373,6 +372,26 @@ void adcSTM32DisableTSVREFE(void) {
ADC->CCR &= ~ADC_CCR_TSVREFE;
}
/**
* @brief Enables the VBATE bit.
* @details The VBATE bit is required in order to sample the VBAT channel.
* @note This is an STM32-only functionality.
*/
void adcSTM32EnableVBATE(void) {
ADC->CCR |= ADC_CCR_VBATE;
}
/**
* @brief Disables the VBATE bit.
* @details The VBATE bit is required in order to sample the VBAT channel.
* @note This is an STM32-only functionality.
*/
void adcSTM32DisableVBATE(void) {
ADC->CCR &= ~ADC_CCR_VBATE;
}
#endif /* HAL_USE_ADC */
/** @} */

2
os/hal/platforms/STM32F4xx/adc_lld.h
View File

@ -556,6 +556,8 @@ extern "C" {
void adc_lld_stop_conversion(ADCDriver *adcp);
void adcSTM32EnableTSVREFE(void);
void adcSTM32DisableTSVREFE(void);
void adcSTM32EnableVBATE(void);
void adcSTM32DisableVBATE(void);
#ifdef __cplusplus
}
#endif

33
testhal/STM32F4xx/ADC/main.c
View File

@ -53,8 +53,8 @@ static void adcerrorcallback(ADCDriver *adcp, adcerror_t err) {
/*
* ADC conversion group.
* Mode: Linear buffer, 16 samples of 8 channels, SW triggered.
* Channels: IN10, IN11, IN10, IN11, IN10, IN11, Sensor, VRef.
* Mode: Linear buffer, 16 samples of 1 channel, SW triggered.
* Channels: IN10.
*/
static const ADCConversionGroup adcgrpcfg1 = {
FALSE,
@ -62,12 +62,11 @@ static const ADCConversionGroup adcgrpcfg1 = {
NULL,
adcerrorcallback,
0, 0, /* CR1, CR2 */
0, /* SMPR1 */
ADC_SMPR2_SMP_AN10(ADC_SAMPLE_4),
0, /* SMPR3 */
ADC_SMPR1_SMP_AN10(ADC_SAMPLE_3),
0, /* SMPR2 */
ADC_SQR1_NUM_CH(ADC_GRP1_NUM_CHANNELS),
0, 0, 0, /* SQR2, SQR3, SQR4 */
ADC_SQR5_SQ1_N(ADC_CHANNEL_IN10)
0, /* SQR2 */
ADC_SQR3_SQ1_N(ADC_CHANNEL_IN10)
};
/*
@ -81,16 +80,14 @@ static const ADCConversionGroup adcgrpcfg2 = {
adccallback,
adcerrorcallback,
0, 0, /* CR1, CR2 */
0, /* SMPR1 */
ADC_SMPR2_SMP_AN10(ADC_SAMPLE_48) | ADC_SMPR2_SMP_SENSOR(ADC_SAMPLE_192) |
ADC_SMPR2_SMP_VREF(ADC_SAMPLE_192),
0, /* SMPR3 */
ADC_SMPR1_SMP_AN11(ADC_SAMPLE_56) | ADC_SMPR1_SMP_AN10(ADC_SAMPLE_56) |
ADC_SMPR1_SMP_SENSOR(ADC_SAMPLE_144) | ADC_SMPR1_SMP_VREF(ADC_SAMPLE_144),
0, /* SMPR2 */
ADC_SQR1_NUM_CH(ADC_GRP2_NUM_CHANNELS),
0, 0, /* SQR2, SQR3 */
ADC_SQR4_SQ8_N(ADC_CHANNEL_SENSOR) | ADC_SQR4_SQ7_N(ADC_CHANNEL_VREFINT),
ADC_SQR5_SQ6_N(ADC_CHANNEL_IN11) | ADC_SQR5_SQ5_N(ADC_CHANNEL_IN10) |
ADC_SQR5_SQ4_N(ADC_CHANNEL_IN11) | ADC_SQR5_SQ3_N(ADC_CHANNEL_IN10) |
ADC_SQR5_SQ2_N(ADC_CHANNEL_IN11) | ADC_SQR5_SQ1_N(ADC_CHANNEL_IN10)
ADC_SQR2_SQ8_N(ADC_CHANNEL_SENSOR) | ADC_SQR2_SQ7_N(ADC_CHANNEL_VREFINT),
ADC_SQR3_SQ6_N(ADC_CHANNEL_IN11) | ADC_SQR3_SQ5_N(ADC_CHANNEL_IN10) |
ADC_SQR3_SQ4_N(ADC_CHANNEL_IN11) | ADC_SQR3_SQ3_N(ADC_CHANNEL_IN10) |
ADC_SQR3_SQ2_N(ADC_CHANNEL_IN11) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN10)
};
/*
@ -102,9 +99,9 @@ static msg_t Thread1(void *arg) {
(void)arg;
chRegSetThreadName("blinker");
while (TRUE) {
palSetPad(GPIOB, GPIOB_LED4);
palSetPad(GPIOD, GPIOD_LED5);
chThdSleepMilliseconds(500);
palClearPad(GPIOB, GPIOB_LED4);
palClearPad(GPIOD, GPIOD_LED5);
chThdSleepMilliseconds(500);
}
}