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The Querier performs a poll of the sensor chips: Temperature Sensor and the 8-channel ADC. The returned values from these combined nine polls are stored in the [[FPGA_Registers#Temperature Register|Temperature and ADC registers]]. The Querier always passes control to the Transmitter in order to relay an S (status) packet to the PC with the polled values.
The Querier performs a poll of the sensor chips: Temperature Sensor and the 8-channel ADC. The returned values from these combined nine polls are stored in the [[FPGA_Registers#Temperature Register|Temperature and ADC registers]]. The Querier always passes control to the Transmitter in order to relay an S (status) packet to the PC with the polled values.
Minor error-handling is built into this module. When the 3-bit ADC address returned from the [[Programming_the_SPI|SPI module]] after a query does not match the requested channel a 0xFFF value is written for that voltage value.
Minor error-handling is built into this module. When the 3-bit ADC address returned from the [[Programming_the_SPI|SPI module]] after a query does not match the requested channel, a 0xFFF value is written for that voltage value.