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diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md index 03b10da1..63779df9 100644 --- a/docs/Config_Reference.md +++ b/docs/Config_Reference.md @@ -4702,6 +4702,40 @@ dout_pin: # This must match the wiring of the chip. The sample rate cannot be changed # in software. ``` + +### ADS1220 +The ADS1220 is a 24 bit ADC supporting up to a 2Khz sample rate configurable in +software. +``` +sensor_type: ads1220 +cs_pin: +# The pin connected to the ADS1220 chip select line. This parameter must +# be provided. +#spi_speed: 512000 +# This chip supports 2 speeds: 256000 or 512000. The faster speed is only +# enabled when one of the Turbo sample rates is used. The correct spi_speed +# is selected based on the sample rate. +#spi_bus: +#spi_software_sclk_pin: +#spi_software_mosi_pin: +#spi_software_miso_pin: +# See the "common SPI settings" section for a description of the +# above parameters. +data_ready_pin: +# Pin connected to the ADS1220 data ready line. This parameter must be +# provided. +#gain: 128 +# Valid gain values are 128, 64, 32, 16, 8, 4, 2, 1 +# The default is 128 +#sample_rate: 660 +# This chip supports two ranges of sample rates, Normal and Turbo. In turbo +# mode the chips c internal clock runs twice as fast and the SPI communication +# speed is also doubled. +# Normal sample rates: 20, 45, 90, 175, 330, 600, 1000 +# Turbo sample rates: 40, 90, 180, 350, 660, 1200, 2000 +# The default is 660 +``` + ## Board specific hardware support ### [sx1509] |