Verilog blocks

Behavioral verilog implementations of components including peripherals for communication protocols and other components commonly used in design of digital systems. Primarily meant for use in FPGAs

This is mostly a learning exercise for me, for practicing writing and verifying RTL code

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Index

Peripherals

1. UART master, slave : Universal Asyncrhnronous Read/Transmit
2. SPI master, slave : Serial Peripheral Interconnect
3. I2C master, slave : Inter-Integrated Circuit

Computation

1. CRC : Cyclic Redundance Check

Memory

1. FIFO : First In First Out
2. ROB : Re-Order Buffer

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Planned

1. Wishbone, AXI wrappers and interfaces for existing peripherals
2. Checksum
3. AES encryption, SHA hashing
4. GPIO
5. NVIC
6. Programmable timer
7. Programmable counter

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Prefix notation

This is the notation used (for the most part) as prefix for identifier names to indicate their type

Prefix	Meaning
i_	Input port
o_	Output port
p_	Parameter (or localparam)
r_	Register
w_	Wire
s_	State definitions (as localparam)

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Tools used

1. Icarus verilog for compilation
2. Makefiles for build automation
3. GTKwave for visualization of waveforms
4. Sigrok, pulseview for protocol decoding (from .vcd files)
5. Draw.io for flowcharts

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