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Introduction
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HERMES HF Telecommunications Manual
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HERMES Hardware
Contents
sBitx notes
Subsections
Introduction
sBitx Hardware
Power consumption
Hardware interfaces to the computer (RPi 4)
Control I/O
I2C RTC
I2C Si5351
I2C ATtiny85 (FWD and REF)
Digital pins setup for knobs control
Signal I/O
I2S Wolfson wm8371
Linux setup for sBitx operation
Pin attribution setup for the RPi 4
Audio - ALSA subsystem
Ashhar's sbitx reference implementation
power setup
bridge setup
I2C bit-banging
RTC setup
