Firmware

1. Peripheral controllers (code for FPGA)

Because the FITkit includes an array of peripherials whose control is not always easy, a set of controllers was created in order to simplify the design of applications and tasks for the kit. The controllers are described in VHDL language.

• Interconnect system (cs)

• LCD display controller (cs)

• Interrupt controller (cs)

• 4x4 keyboard (cs)

• PS/2 controller (cs)

• VGA interface (cs)

• SDRAM controller (cs)

• PicoCPU component (cs)

2. Firmware (code for MCU)

The software basis is represented by the libfitkit library which offers basic functions essential for the interaction of the microcontroller with the terminal, FLASH, FPGA etc.

• libfitkit library (cs)

• Communication with the FPGA (SPI in libfitkit) (cs)

Because the libfitkit library contains only basic functions, a set of functions (drivers) was born, each for individual peripherial controller implemented in the FPGA offering basic support for the MCU. These functions are not part of libfitkit library. All these drivers are to be found in the mcu/libs directory. It is possible to easily add the needed drivers to the application.

• LCD display controller driver for the MCU (cs)

• Interrupt controller driver for the MCU (cs)

• Handling the PS/2 keyboard (cs)

• 4x4 keyboard driver (cs)

• RS-232 serial port driver (cs)

• Audio codec for FITkit 2.0 driver (cs)