adc_onchip.h File Reference

Detailed Description

Low level ChibiOS ADC helpers header.

Date

Aug 23, 2025

Author

Andrey Gusakov, (c) 2025

Definition in file adc_onchip.h.

Functions
int	adcConversionGroupSetSeqInput (ADCConversionGroup *cfg, size_t sqn, size_t input)
int	adcConversionGroupGetSeqInput (ADCConversionGroup *cfg, size_t sqn)

Function Documentation

adcConversionGroupGetSeqInput()

int adcConversionGroupGetSeqInput	(	ADCConversionGroup *	cfg,
		size_t	sqn
	)

Definition at line 51 of file adc_onchip.cpp.

                                                                       {
    if (sqn < 6) {
        size_t shift = 5 * (sqn  - 0);
        return (cfg->sqr3 >> shift) & 0x1f;
    } else if (sqn < 12) {
        size_t shift = 5 * (sqn  - 6);
        return (cfg->sqr2 >> shift) & 0x1f;
    } else if (sqn < 18) {
        size_t shift = 5 * (sqn - 12);
        return (cfg->sqr1 >> shift) & 0x1f;
#if ADC_MAX_CHANNELS_COUNT > 16
    } else if (sqn < 24) {
        size_t shift = 5 * (sqn - 18);
        return (cfg->sqr4 >> shift) & 0x1f;
    } else if (sqn < 30) {
        size_t shift = 5 * (sqn - 24);
        return (cfg->sqr5 >> shift) & 0x1f;
#endif /* ADC_MAX_CHANNELS_COUNT */
    }
 
    return -1;
}

adcConversionGroupSetSeqInput()

int adcConversionGroupSetSeqInput	(	ADCConversionGroup *	cfg,
		size_t	sqn,
		size_t	input
	)

Definition at line 20 of file adc_onchip.cpp.

                                                                                     {
    if (sqn < 6) {
        size_t shift = 5 * (sqn  - 0);
        cfg->sqr3 = (cfg->sqr3 & (~(0x1f << shift))) |
                    (input << shift);
    } else if (sqn < 12) {
        size_t shift = 5 * (sqn  - 6);
        cfg->sqr2 = (cfg->sqr2 & (~(0x1f << shift))) |
                    (input << shift);
    } else if (sqn < 18) {
        size_t shift = 5 * (sqn - 12);
        cfg->sqr1 = (cfg->sqr1 & (~(0x1f << shift))) |
                    (input << shift);
#if ADC_MAX_CHANNELS_COUNT > 16
    } else if (sqn < 24) {
        size_t shift = 5 * (sqn - 18);
        cfg->sqr4 = (cfg->sqr4 & (~(0x1f << shift))) |
                    (input << shift);
    } else if (sqn < 30) {
        size_t shift = 5 * (sqn - 24);
        cfg->sqr5 = (cfg->sqr5 & (~(0x1f << shift))) |
                    (input << shift);
    }
#endif /* ADC_MAX_CHANNELS_COUNT */
    } else {

Referenced by slowAdcEnableDisableChannel().

Here is the caller graph for this function:

Go to the source code of this file.