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The !PicoBlaze Library L_PicoBlaze contains hardware modules as well as assembler routines.

Main features of the hardware components:

• [Package VHDL auxiliary package]
  • !PicoBlaze related constants, records and types
  • Functions to define a generic PortID to register mapping
  • Functions for semi-automated bus wiring
  • Functions to write debug information for simulators and !ChipScope to disk
• Core system
  • A generic [pb_AddressDecoder address decoder] with a registered write path
  • A [pb_InterruptController interrupt controller] with 32 ports and per device error message handling]
  • TODO: Timer
• accelerators:
  • multiplier
  • divider
  • ...
• I/O devices for
  • GPIO
  • LCD
  • Bit-Banging IO
  • ...
• I/O adapters for
  • Xilinx Dynamic Reconfiguration Port (DRP)
  • ...

Main features of the software stack:

• Core system
  • predefined [RegisterNames register names] and calling conventions
  • ROM switching, if multiple ROM [Pages pages] are used (up to 32k instructions)
• Libraries:
  • [libStack Stack] functions: push, pop, top, ...
  • [libSleep100MHz Delay] functions: sleep from nanoseconds to seconds
  • [libThread Co-routines] (lightweight threads)
• I/O routines to communicate with the hardware modules:
  • I²C
  • SPI
  • LCD
  • UART
• DEV routines implement special protocols like:
  • Terminal
  • PCA9548 (I²C switch)
  • SI570 (external, programmable clock source)
  • 7-Series GTX transceiver