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Altera_Forum
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12 years ago

NIOS II memory writes failing - values being input at wrong addresses (I2C opencore)

Hi, I'm trying to integrate an I2C core from opencores to my Cyclone IV device. Apparently the version I'm using should just drop into the SOPC and work after being wired to some outputs (alter...
Altera_Forum's avatar
Altera_Forum
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12 years ago

In signaltap you should be able to trigger on the "write" signal.

Could you show us the code you are using to write to the registers?

Are you sure that 9866160 (in hexadecimal) is the correct base address?

Is the FPGA configured with the correct .sof image (i.e. did you, in that order, generate the SOPC system, compile the Quartus project and upload the .sof image to the FPGA before doing the test?)