LRCR
12-23-2005, 10:13 PM
I am designing a General IO controller with a I2C interface using a
Spartan 3E. It seems simple since I2C slave needs to detect the start
and end of a byte and reply with an acknowledge. Also, the FPGA I2C
slave will use the master clock to read in the serial Bits. The first
byte is the address and the second is the data. I am still a novice
in VHDL and this is my first I2C project. I was told to do a VHDL
generic design without buying an IP for this project. From my
explanation of the design, I hope I am not missing anything. So far
this is a Master to slave interface, but I am not sure if the reverse
is require. But I want to start with a one direction interface first
in order to get my feet wet in this type of interface. Can anyone
suggest how I can start on the VHDL design. An outline or a sample
code would be helpful
Spartan 3E. It seems simple since I2C slave needs to detect the start
and end of a byte and reply with an acknowledge. Also, the FPGA I2C
slave will use the master clock to read in the serial Bits. The first
byte is the address and the second is the data. I am still a novice
in VHDL and this is my first I2C project. I was told to do a VHDL
generic design without buying an IP for this project. From my
explanation of the design, I hope I am not missing anything. So far
this is a Master to slave interface, but I am not sure if the reverse
is require. But I want to start with a one direction interface first
in order to get my feet wet in this type of interface. Can anyone
suggest how I can start on the VHDL design. An outline or a sample
code would be helpful