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stm32f3: fix missing reg mask for adc_set_multi_mode

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Missing defines for ADC_CCR DUAL values have also been added.
This commit is contained in:
François Finfe 2020-02-18 11:48:11 +01:00
parent cb0661f81d
commit 49285ed8e1
2 changed files with 46 additions and 5 deletions
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37
include/libopencm3/stm32/f3/adc.h
View File

@ -486,6 +486,43 @@
#define ADC_CCR_DELAY_SHIFT 8
/* DUAL[4:0]: Dual ADC mode selection */
/****************************************************************************/
/** @defgroup adc_multi_mode ADC Multi mode selection
@ingroup adc_defines
@{*/
/** All ADCs independent */
#define ADC_CCR_DUAL_INDEPENDENT 0x0
/* Dual modes: (ADC1 master + ADC2 slave or ADC3 master + ADC4 slave) */
/**
* Dual modes combined regular simultaneous +
* injected simultaneous mode.
*/
#define ADC_CCR_DUAL_REG_SIMUL_AND_INJECTED_SIMUL 0x1
/**
* Dual mode Combined regular simultaneous +
* alternate trigger mode.
*/
#define ADC_CCR_DUAL_REG_SIMUL_AND_ALTERNATE_TRIG 0x2
/**
* Dual mode Combined interleaved mode +
* injected simultaneous mode.
*/
#define ADC_CCR_DUAL_REG_INTERLEAVED_AND_INJECTED_SIMUL 0x3
/** Dual mode Injected simultaneous mode only. */
#define ADC_CCR_DUAL_INJECTED_SIMUL 0x5
/** Dual mode Regular simultaneous mode only. */
#define ADC_CCR_DUAL_REGULAR_SIMUL 0x6
/** Dual mode Interleaved mode only. */
#define ADC_CCR_DUAL_INTERLEAVED 0x7
/** Dual mode Alternate trigger mode only. */
#define ADC_CCR_DUAL_ALTERNATE_TRIG 0x9
/**@}*/
#define ADC_CCR_DUAL_MASK (0x1f << 0)
#define ADC_CCR_DUAL_SHIFT 0

14
lib/stm32/f3/adc.c
View File

@ -53,7 +53,7 @@
* adc_set_sample_time(ADC1, ADC_CHANNEL0, ADC_SMPR1_SMP_1DOT5CYC);
* uint8_t channels[] = ADC_CHANNEL0;
* adc_set_regular_sequence(ADC1, 1, channels);
* adc_set_multi_mode(ADC_CCR_MULTI_INDEPENDENT);
* adc_set_multi_mode(ADC_CCR_DUAL_INDEPENDENT);
* adc_power_on(ADC1);
* adc_start_conversion_regular(ADC1);
* while (! adc_eoc(ADC1));
@ -597,10 +597,13 @@ void adc_set_clk_prescale(uint32_t adc, uint32_t prescale)
}
/*---------------------------------------------------------------------------*/
/** @brief ADC Set Dual/Triple Mode
/** @brief ADC Set Dual Mode
*
* The multiple mode uses ADC1 as master, ADC2 and optionally ADC3 in a slave
* arrangement. This setting is applied to ADC1 only.
* The multiple mode can uses these arrangement:
* - ADC1 as master and ADC2 as slave
* - ADC3 as master and ADC4 as slave
*
* This setting is applied to ADC master only (ADC1 or ADC3).
*
* The various modes possible are described in the reference manual.
*
@ -610,7 +613,8 @@ void adc_set_clk_prescale(uint32_t adc, uint32_t prescale)
*/
void adc_set_multi_mode(uint32_t adc, uint32_t mode)
{
ADC_CCR(adc) |= mode;
ADC_CCR(adc) &= ~ADC_CCR_DUAL_MASK;
ADC_CCR(adc) |= (mode << ADC_CCR_DUAL_SHIFT);
}
/*---------------------------------------------------------------------------*/