Function to help to configure DMA transfer from ADC: retrieve the ADC register address from ADC instance and a list of ADC registers intended to be used (most commonly) with DMA transfer.
- Note:
- These ADC registers are data registers: when ADC conversion data is available in ADC data registers, ADC generates a DMA transfer request.
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This macro is intended to be used with LL DMA driver, refer to function "LL_DMA_ConfigAddresses()". Example: LL_DMA_ConfigAddresses(DMA1, LL_DMA_CHANNEL_1, LL_ADC_DMA_GetRegAddr(ADC1, LL_ADC_DMA_REG_REGULAR_DATA), (uint32_t)&< array or variable >, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
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For devices with several ADC: in multimode, some devices use a different data register outside of ADC instance scope (common data register). This macro manages this register difference, only ADC instance has to be set as parameter.
- Reference Manual to LL API cross reference:
- DR RDATA LL_ADC_DMA_GetRegAddr
CDR RDATA_MST LL_ADC_DMA_GetRegAddr
CDR RDATA_SLV LL_ADC_DMA_GetRegAddr
- Parameters:
-
| ADCx | ADC instance |
| Register | This parameter can be one of the following values:
(1) Available on devices with several ADC instances. |
- Return values:
-
Definition at line 1772 of file stm32f4xx_ll_adc.h.
References __LL_ADC_COMMON_INSTANCE, and LL_ADC_DMA_REG_REGULAR_DATA.
