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Diffstat (limited to 'i2c/potentiometer/analog_devices_ad5258/README')
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diff --git a/i2c/potentiometer/analog_devices_ad5258/README b/i2c/potentiometer/analog_devices_ad5258/README new file mode 100644 index 0000000..cce0f3b --- /dev/null +++ b/i2c/potentiometer/analog_devices_ad5258/README @@ -0,0 +1,30 @@ +------------------------------------------------------------------------------- +Analog Devices AD5258 digital potentiometer +------------------------------------------------------------------------------- + +This is a set of example captures of the I²C traffic to/from an Analog +Devices AD5258 digital potentiometer. + +Details: +http://www.analog.com/en/products/digital-to-analog-converters/digital-potentiometers/ad5258.html +http://www.analog.com/media/en/technical-documentation/data-sheets/AD5258.pdf + + +Logic analyzer setup +-------------------- + +The logic analyzer used was a CWAV USBee AX (at 4MHz): + + Probe AD5258 pin + ---------------------- + 0 (black) SCL + 1 (brown) SDA + + Analog AD5258-controlled voltage elsewhere on the PCB + + +Data +---- + +The data contains various digital potentiometer communication, e.g. reading +and writing the RDAC register, reading/writing the internal EEPROM, etc. |