# be absolutely certain the JTAG clock will work with the worst-case
# CLKIN = 24 MHz (best case: 36 MHz) even when no bootloader turns
# on the PLL and starts using it. OK to speed up after clock setup.
# be absolutely certain the JTAG clock will work with the worst-case
# CLKIN = 24 MHz (best case: 36 MHz) even when no bootloader turns
# on the PLL and starts using it. OK to speed up after clock setup.