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ST STM32G473 User Manual

ST STM32G473
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Contents RM0440
18/2126 RM0440 Rev 4
21.4.13 Single conversion mode (CONT=0) . . . . . . . . . . . . . . . . . . . . . . . . . . . 622
21.4.14 Continuous conversion mode (CONT=1) . . . . . . . . . . . . . . . . . . . . . . . 622
21.4.15 Starting conversions (ADSTART, JADSTART) . . . . . . . . . . . . . . . . . . . 623
21.4.16 ADC timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624
21.4.17 Stopping an ongoing conversion (ADSTP, JADSTP) . . . . . . . . . . . . . . 624
21.4.18 Conversion on external trigger and trigger polarity
(EXTSEL, EXTEN,JEXTSEL, JEXTEN) . . . . . . . . . . . . . . . . . . . . . . . 626
21.4.19 Injected channel management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 631
21.4.20 Discontinuous mode (DISCEN, DISCNUM, JDISCEN) . . . . . . . . . . . . 633
21.4.21 Queue of context for injected conversions . . . . . . . . . . . . . . . . . . . . . . 634
21.4.22 Programmable resolution (RES) - fast conversion mode . . . . . . . . . . 642
21.4.23 End of conversion, end of sampling phase (EOC, JEOC, EOSMP) . . 643
21.4.24 End of conversion sequence (EOS, JEOS) . . . . . . . . . . . . . . . . . . . . . 643
21.4.25 Timing diagrams example (single/continuous modes,
hardware/software triggers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644
21.4.26 Data management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 646
21.4.27 Dynamic low-power features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652
21.4.28 Analog window watchdog (AWD1EN, JAWD1EN, AWD1SGL,
AWD1CH, AWD2CH, AWD3CH, AWD_HTx, AWD_LTx, AWDx) . . . . . 657
21.4.29 Oversampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 661
21.4.30 Dual ADC modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667
21.4.31 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681
21.4.32 VBAT supply monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 683
21.4.33 Monitoring the internal voltage reference . . . . . . . . . . . . . . . . . . . . . . 684
21.5 ADC interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 685
21.6 ADC registers (for each ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 687
21.6.1 ADC interrupt and status register (ADC_ISR) . . . . . . . . . . . . . . . . . . . 687
21.6.2 ADC interrupt enable register (ADC_IER) . . . . . . . . . . . . . . . . . . . . . . 689
21.6.3 ADC control register (ADC_CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 691
21.6.4 ADC configuration register (ADC_CFGR) . . . . . . . . . . . . . . . . . . . . . . 694
21.6.5 ADC configuration register 2 (ADC_CFGR2) . . . . . . . . . . . . . . . . . . . 698
21.6.6 ADC sample time register 1 (ADC_SMPR1) . . . . . . . . . . . . . . . . . . . . 701
21.6.7 ADC sample time register 2 (ADC_SMPR2) . . . . . . . . . . . . . . . . . . . . 701
21.6.8 ADC watchdog threshold register 1 (ADC_TR1) . . . . . . . . . . . . . . . . . 702
21.6.9 ADC watchdog threshold register 2 (ADC_TR2) . . . . . . . . . . . . . . . . . 703
21.6.10 ADC watchdog threshold register 3 (ADC_TR3) . . . . . . . . . . . . . . . . . 704
21.6.11 ADC regular sequence register 1 (ADC_SQR1) . . . . . . . . . . . . . . . . . 704
21.6.12 ADC regular sequence register 2 (ADC_SQR2) . . . . . . . . . . . . . . . . . 705

Table of Contents

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ST STM32G473 Specifications

General IconGeneral
BrandST
ModelSTM32G473
CategoryMicrocontrollers
LanguageEnglish

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