Challenges

Implement a full-duplex 8N1 UART with TX/RX FSMs and robust sampling.

Implement an I2C MCP23017 GPIO expander driver with initialization and cyclic read.

Implement an 8-channel simultaneous-sampling LTC2320-14 ADC driver with parallel interface.

Implement an 8-channel LTC1857 ADC controller with sequencer and SPI.

Implement an AD9832 DDS controller with initialization FSM and frequency writing.

Implement a 32:1 analog multiplexer ADG731 controller with SPI interface.

Implement an ADS7054 12-bit ADC driver with calibration and SPI conversion.

Implement a fast ADS7057 12-bit ADC driver (48 MHz SCLK).