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Roman Piksaykin 2023-11-11 02:25:58 +03:00 zatwierdzone przez GitHub
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@ -6,8 +6,6 @@ necessary build files to build a custom application which turns pico into
precise PLL digital frequency oscillator of the portion of HF radio spectrum
1.1 to 9.4MHz with high resolution.
![DSC_0269](https://github.com/RPiks/pico-DCO/assets/47501785/91ee4c1a-43ed-4452-8606-9dd27183a044)
# Precise frequency resolution
The library provides 1 Hz frequency resolution in initialize function. This
resolution can be easily increased to 23 millihertz, which is limited by
@ -15,6 +13,8 @@ resolution can be easily increased to 23 millihertz, which is limited by
Currently the upper freq. limit is about 9.4 MHz and it is achieved only using
pi pico overclocking to 270MHz.
![DSC_0269_512](https://github.com/RPiks/pico-DCO/assets/47501785/04bcd948-8538-40db-a3d5-9ac6bb7be675)
# Phased locked loop in C
The DCO uses phase locked loop principle programmed in C.