但这里正是我不理解的地方啊,
JTAG_MOD must be externally connected to GND for normal operation. Termination to GND through an external pull-down resistor (such as 1 k) is allowed.
这样的话JTAG_MOD set to low configures the JTAG in terface for common SW debug adding all the system TAPs to the chain.
可是我不需要这个debug功能的啊,是否还需要接地处理呢?后面便是上面的疑问了,还请理解!