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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.Link Copied
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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- Mark as New
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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
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