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The CDCE62005 chip on the EVM has an external reference input at J8. I would like to use a external clock with test equipment (10MHz) to sync up all the signal to the same reference.
The CDCE62005 GUI does not seem to be operational, when I click on it from the main GUI, there is no additional GUI for CDCE62005 that pops up.
Any recommendation for enabling external reference to the CDCE62005?
regards,
Juswanto
Hey Juswanto,
You will need to operate the TSW6011 EVM GUI not the CDCE62005 GUI.
Here is a link to the user guide that has a link to download the GUI.
Yusuf
and the problem that you are seeing is that CDC does not respond to the GUI?
Yusuf
Juswanto,
Sorry for your frustration. I understood that your issue is that the CDC is not responding to the GUI but I was not aware that the CDC was still fully functioning. That's why I suggested that you verify the power supply. Sorry for the misunderstanding.
I am asking that you take a probe SPI pins at the CDC just to double check that there are signals present there when toggling the GUI. If there is break in the SPI path somehow then you will experience the problem you are seeing. If you do this and there is still no luck. I will try and find someone with more experience with the part.
Yusuf
Yusuf,
THere is no doubt the CDC hardware is working properly in the EVM. The CDC provides critical clock to the FPGA, ADC, DAC, etc. If the CDC hardware is not working, I would never be able to make RF measurement out of the DAC. The CDC hardware is controlled by the EVM main GUI, and it is only preprogrammed to give the fixed clocks that all the other blocks require. Again, if the CDC HW is not working, I cannot make the measurements on signal coming out of the DAC, and change the FPGA control, etc. THese are all working fine, hence the CDC is working fine. If CDC is not working, I would not see RF signal coming out of the DAC at 32MHz, and none of the FPGA control will have response on the DAC RF signal.
THe main problem is, the CDC GUI is not enabled for the end user, to be able to use other clocks that can be supplied through the external SMA connectors.
You asked me to check the SPI clock and control signals when I click on the CDC GUI/icon, well, there are not codes behind the GUI, such that nothing happens.
Could you help find who the person is that writes the GUI for the EVM, and see if he/she has a version that the CDC GUI is enabled?
regards,
Juswanto