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Discussion - Software / FT2232H JTAG TCK Clock Speed
« on: April 17, 2024, 05:22:09 AM »
Hi
I was trying to use FT2232H Channel A as JTAG and configured it. I have enabled JTAGHiSpeed API's from driver and disabled divide_by_5, to get 30MHz as TCK. But when I probe, I see 6MHz at TCK Pin.
1. Does FT2232H support 30MHz at JTAG-TCK?
2. Is it required for platform to provide 60MHz clock to FTDI or 12MHz crystal is sufficient? Or any other hardware change required?
3. Any reference driver/test to enable FT2232H JTAG TCK operating at 30MHz?
I was trying to use FT2232H Channel A as JTAG and configured it. I have enabled JTAGHiSpeed API's from driver and disabled divide_by_5, to get 30MHz as TCK. But when I probe, I see 6MHz at TCK Pin.
1. Does FT2232H support 30MHz at JTAG-TCK?
2. Is it required for platform to provide 60MHz clock to FTDI or 12MHz crystal is sufficient? Or any other hardware change required?
3. Any reference driver/test to enable FT2232H JTAG TCK operating at 30MHz?