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ST STM32F446 Series - Page 12

ST STM32F446 Series
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Contents RM0390
12/1328 RM0390 Rev 4
13.13.17 ADC common regular data register for dual and triple modes
(ADC_CDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
13.13.18 ADC register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
14 Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
14.1 DAC introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
14.2 DAC main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
14.3 DAC functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
14.3.1 DAC channel enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
14.3.2 DAC output buffer enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
14.3.3 DAC data format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
14.3.4 DAC conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404
14.3.5 DAC output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
14.3.6 DAC trigger selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
14.3.7 DMA request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
14.3.8 Noise generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
14.3.9 Triangle-wave generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
14.4 Dual DAC channel conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
14.4.1 Independent trigger without wave generation . . . . . . . . . . . . . . . . . . . 409
14.4.2 Independent trigger with single LFSR generation . . . . . . . . . . . . . . . . 409
14.4.3 Independent trigger with different LFSR generation . . . . . . . . . . . . . . 409
14.4.4 Independent trigger with single triangle generation . . . . . . . . . . . . . . . 410
14.4.5 Independent trigger with different triangle generation . . . . . . . . . . . . . 410
14.4.6 Simultaneous software start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410
14.4.7 Simultaneous trigger without wave generation . . . . . . . . . . . . . . . . . . 411
14.4.8 Simultaneous trigger with single LFSR generation . . . . . . . . . . . . . . . 411
14.4.9 Simultaneous trigger with different LFSR generation . . . . . . . . . . . . . 411
14.4.10 Simultaneous trigger with single triangle generation . . . . . . . . . . . . . . 412
14.4.11 Simultaneous trigger with different triangle generation . . . . . . . . . . . . 412
14.5 DAC registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
14.5.1 DAC control register (DAC_CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
14.5.2 DAC software trigger register (DAC_SWTRIGR) . . . . . . . . . . . . . . . . . 416
14.5.3 DAC channel1 12-bit right-aligned data holding register
(DAC_DHR12R1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
14.5.4 DAC channel1 12-bit left aligned data holding register
(DAC_DHR12L1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
14.5.5 DAC channel1 8-bit right aligned data holding register
(DAC_DHR8R1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417

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