AngeloJacobo / FPGA_I2C_Implementation

Bit-bang i2c protocol for interfacing with DS1307 RTC

Created by: Angelo Jacobo
Date: July 28,2021

Inside the src folder are:

• ds1307_controller.v -> Combines i2c_top and LED_mux modules. Current time is retrieved from ds1307 then displayed
            real-time on the seven-segment LEDs.
            key[0] for writing date/time to ds1307 via i2c protocol
            key[2] to change display between time(hh.mm.ss) and date(mm.dd.yy)
• i2c_top -> i2c communication protocol controller
• LED_mux -> Multiplexing circuit for seven-segments
• ds1307_controller.ucf -> Constraint file for ds1307_controller.v

Note: The constraint file is designed for Spartan 6 xc6slx9-2ftg256 FPGA (specifically the AX309 FPGA development board). Edit at your own risk.

UML_Chart (i2c bit-bang implementation):

TASK:

This project implemented a bit-bang i2c protocol in order to communicate
to ds1307 real time clock module. Retrieved data from the rtc is displayed real time
to the seven-segment LED display.

• key[0] is for writing data(time/date) to ds1307
• key[1] is for interchanging display between time(hh.mm.ss) and date(mm.dd.yy)