08-02-2004 02:03 PM
Anyone having a reference design or an idea on how to have a RTC as a NiosII peripheral ?The considered design shall use an EP1C3 + EPCS1SI8. Thanks! Cheers Franck P.
08-02-2004 07:14 PM
Hallo Franck,There are two ways for using a RTC with the Nios. First you can use an external RTC with SPI, I2C, … interface or you can write or use an Verilog/VHDL module. In my current design I will use an external RTC (Epson RTC-8564) with the free I2C interface from opencores (http://www.opencores.org/). Bye, niosIIuser
08-03-2004 08:23 PM
Hello:I used the BQ4845 from TI. It's got an 8 bit parallel interface which is suitable for my system. 32khz crystal and battery input pin. so does this make a 3 way to implement a RTC. Just kidding. Next for me is the time.h stuff from C. I'm scheduling things at sunrise and sunset any where in the world. Good Luck George