I am following Avnet reference design from Github to change the frequency of the U13 which is IDT 8T49N242. Everything goes OK, and I get the message IIC EEPROM Test: PASSED message at the end, however, after I power cycle, I still don’t have new clock frequency from the IDT device.
The reference design is programming the EEPROM which is U14, and it is at address 0xA0. However, the slave address which is indicated in the pzcc_iic_eeprom_test.c source file is at 0x50. I tried to change it to 0xA0, but then the EEROM test fails. After programming the EEPROM, is there anything else I need to do? Why am I not getting the frequency which I want?
I am using Vivado 2015.4 as the reference design requires.