Available cores

If you do not see a suitable core below, please raise a 'new core request' issue with a description of your requirement in the body of the issue. To do this, click the Issues tab above and click on 'New Issue' to get started.

For each available core, there are two links. 'fitter report' links to a report on what resources were used, and what the pinouts are. Near the end of the report is an ascii art rendering of the chip with a legend showing which signals are assigned where. Unused pins are labeled 'KPR' (for 'Keeper'). However, a Guzunty user is more interested in the 'Loc' column in the Outputs and Inputs tables. These id codes match with the labels on the Guzunty PCB.

The 'wave' link shows you a waveform view, a logic analyser like view of the signals as they change over time under control of the test bench (every core has a test bench). Each waveform is accompanied by some comments explaining what is going on.

Please excuse the dust, this page is under construction.

Output heavy

• gz_25o.xsvf
• gz_24o1i.xsvf
• gz_16o8i.xsvf - fitter report - wave

Input heavy

• gz_8o16i.xsvf
• gz_1o24i.xsvf
• gz_25i.xsvf

Pulse Width Modulation

• gz_4p.xsvf
• gz_8p8i.xsvf - fitter report - wave

LEGEND: o = output, i = input, p = pwm

Specialised cores

• gz_led_driver.xsvf - 4 digit, 7 segment led display driver
• gz_test.xsvf - Simple clock divider test pattern
• gz_arduino.xsvf - Enables 5v Arduino programming and interfacing