18c2ecf20Sopenharmony_ciMaxim MAX31856 thermocouple support 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_cihttps://datasheets.maximintegrated.com/en/ds/MAX31856.pdf 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ciOptional property: 68c2ecf20Sopenharmony_ci - thermocouple-type: Type of thermocouple (THERMOCOUPLE_TYPE_K if 78c2ecf20Sopenharmony_ci omitted). Supported types are B, E, J, K, N, R, S, T. 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ciRequired properties: 108c2ecf20Sopenharmony_ci - compatible: must be "maxim,max31856" 118c2ecf20Sopenharmony_ci - reg: SPI chip select number for the device 128c2ecf20Sopenharmony_ci - spi-max-frequency: As per datasheet max. supported freq is 5000000 138c2ecf20Sopenharmony_ci - spi-cpha: must be defined for max31856 to enable SPI mode 1 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci Refer to spi/spi-bus.txt for generic SPI slave bindings. 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci Example: 188c2ecf20Sopenharmony_ci temp-sensor@0 { 198c2ecf20Sopenharmony_ci compatible = "maxim,max31856"; 208c2ecf20Sopenharmony_ci reg = <0>; 218c2ecf20Sopenharmony_ci spi-max-frequency = <5000000>; 228c2ecf20Sopenharmony_ci spi-cpha; 238c2ecf20Sopenharmony_ci thermocouple-type = <THERMOCOUPLE_TYPE_K>; 248c2ecf20Sopenharmony_ci }; 25