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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4235 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2012-05-26 11:24:52 +00:00
parent 512b78de72
commit 6e2f377dd5
2 changed files with 18 additions and 24 deletions
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32
os/hal/platforms/STM32F0xx/adc_lld.c
View File

@ -174,6 +174,16 @@ void adc_lld_start(ADCDriver *adcp) {
chDbgAssert(!b, "adc_lld_start(), #1", "stream already allocated"); chDbgAssert(!b, "adc_lld_start(), #1", "stream already allocated");
dmaStreamSetPeripheral(adcp->dmastp, &ADC1->DR); dmaStreamSetPeripheral(adcp->dmastp, &ADC1->DR);
rccEnableADC1(FALSE); rccEnableADC1(FALSE);
#if STM32_ADCSW == STM32_ADCSW_HSI14
/* Clock from HSI14, no need for jitter removal.*/
ADC1->CFGR2 = 0x00001000;
#else
#if STM32_ADCPRE == STM32_ADCPRE_DIV2
ADC1->CFGR2 = 0x00001000 | ADC_CFGR2_JITOFFDIV2;
#else
ADC1->CFGR2 = 0x00001000 | ADC_CFGR2_JITOFFDIV4;
#endif
#endif
} }
#endif /* STM32_ADC_USE_ADC1 */ #endif /* STM32_ADC_USE_ADC1 */
@ -265,28 +275,6 @@ void adc_lld_stop_conversion(ADCDriver *adcp) {
adc_lld_stop_adc(adcp->adc); adc_lld_stop_adc(adcp->adc);
} }
/**
* @brief Enables the TSVREFE bit.
* @details The TSVREFE bit is required in order to sample the internal
* temperature sensor and internal reference voltage.
* @note This is an STM32-only functionality.
*/
void adcSTM32EnableTSVREFE(void) {
ADC->CCR |= ADC_CCR_VREFEN;
}
/**
* @brief Disables the TSVREFE bit.
* @details The TSVREFE bit is required in order to sample the internal
* temperature sensor and internal reference voltage.
* @note This is an STM32-only functionality.
*/
void adcSTM32DisableTSVREFE(void) {
ADC->CCR &= ~ADC_CCR_VREFEN;
}
#endif /* HAL_USE_ADC */ #endif /* HAL_USE_ADC */
/** @} */ /** @} */

10
os/hal/platforms/STM32F0xx/adc_lld.h
View File

@ -264,6 +264,14 @@ struct ADCDriver {
/* Driver macros. */ /* Driver macros. */
/*===========================================================================*/ /*===========================================================================*/
/**
* @brief Changes the value of the ADC CCR register.
* @details Use this function in order to enable or disable the internal
* analog sources. See the documentation in the STM32F0xx Reference
* Manual.
*/
#define adcSTM32SetCCR(ccr) (ADC->CCR = (ccr))
/*===========================================================================*/ /*===========================================================================*/
/* External declarations. */ /* External declarations. */
/*===========================================================================*/ /*===========================================================================*/
@ -280,8 +288,6 @@ extern "C" {
void adc_lld_stop(ADCDriver *adcp); void adc_lld_stop(ADCDriver *adcp);
void adc_lld_start_conversion(ADCDriver *adcp); void adc_lld_start_conversion(ADCDriver *adcp);
void adc_lld_stop_conversion(ADCDriver *adcp); void adc_lld_stop_conversion(ADCDriver *adcp);
void adcSTM32EnableTSVREFE(void);
void adcSTM32DisableTSVREFE(void);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif