Instructions

• Select the Update Frequency in Hz, it is simply sequence speed.
• Click View Circuit Diagram to see how the 8051 and LEDs are connected in logic diagram and in block diagram.
• Click View Assembly Code to analyse the assembly code used for this experiment.
• Now according to your analysis write your code in the Assembly Code Editor.
• Click Check Code to verify your program against the given code.
  • If correct → a success message will appear and Start Simulation will be enabled.
  • If incorrect → you’ll be asked to review and correct your program.
• (Optional) You can directly copy code into editor by clicking on Use Code in View Assembly code popup.
• After validation, click Start Simulation to run the simulation.
• Here outputs of flipflops 8,6,5,4 are XORed together so polinamial used is x⁸ + x⁶ + x⁵ + x⁴ + 1. Seed is given at P1.0 as 1 remaining 0.
• Observe the led pattern and PN sequence graph and table.
• If you want to save your program, click Download Code. It will be stored as pn_sequence_code.asm.
• If you want to save generated waveform, click Download Graph. It will be stored as pn_sequence_chart.png.
• If you want to save generated table, click Download table. It will be stored as pn_sequence_code.csv.
• Click Reset Simulation to stop the simulation, clear the editor, and reset everything to default.