Hi All
I am connecting using the JTAG socket on HiFive1 Rev B. I noticed that, when the JTAG port is active, Voltage on VTref drops to below 3.0 (2.85+) from a consistent/constant 3.29+. While it is still within measurement error of my multimeter (0.5%), the voltage drop, it unnerves me because we are hovering at the lower end of my JTAG Probe (USB Blaster II) expected value.
Is this normal? Is there anything I can do to improve the voltage?