rx_tamer

Discussions related to embedded firmware, driver, and user mode application software development

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liisoo
Posts: 1
Joined: Sat Oct 08, 2022 6:53 pm

rx_tamer

Post by liisoo »

hello,
What is the function of the rx_tamer in the nios system.
robert.ghilduta
Posts: 128
Joined: Thu Feb 28, 2013 11:14 pm

Re: rx_tamer

Post by robert.ghilduta »

rx_tamer uses a 1PPS signal to tame the VCTCXO using a simple control system algorithm. The idea is to allow a 1PPS signal from a GPS receiver to be used as a reference for counting clock cycles per second to estimate what value the VCTCXO's DAC should be set to in order to bring the VCTCO to 38.4MHz.
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