c_sync

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

The Sync Command
sync

The sync command reestablishes connection with the Target.

Format

The format for the sync command is:

	sync

Functional Description

The sync command is used to reestablish connection
after the SerialICE Monitor has reported that it has lost contact
with the target. You must press reset on the target before using this
command.

An Example illustrating the use of the sync command follows.

IMON r				Attempt to display GP registers
	IMON displays several messages stating that it is unable
	to establish connection with the target.

	User presses reset on the target.

IMON sync			Reestablish connection
IMON r				GP registers displayed correctly

       zero      at       v0       v1       a0       a1       a2       a3   
 $0- 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        t0       t1       t2       t3       t4       t5       t6       t7   
 $8- 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        s0       s1       s2       s3       s4       s5       s6       s7   
$16- 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        t8       t9       k0       k1       gp       sp       s8       ra   
$24- 00000000 00000000 00000000 00000000 00000000 9fffffe8 00000000 00000000