adc_digi_config_t::adc1_pattern_len field

Pattern table length for digital controller. Range: 0 ~ 16 (0: Don't change the pattern table setting). The pattern table that defines the conversion rules for each SAR ADC. Each table has 16 items, in which channel selection, resolution and attenuation are stored. When the conversion is started, the controller reads conversion rules from the pattern table one by one. For each controller the scan sequence has at most 16 different rules before repeating itself.