猫盘ttl刷机，按回车不能中断是为什么

zzzxzzz

用得ch341编程器，用xshell访问，可以看到跑内容，但无论怎么按回车就是不能出现输入命令的情况。
具体跑内容如下，求指导
- ?! Y& W1 n: k% ?*** Warning - bad CRC, using default environment
1 l' G( X# {; ~8 [: F  E1 c
) k  _" x$ N1 V- t8 ]/ P: RMMC:   for ssg ledsdhci@d8000: 0
ÿ** File not found boot/armada-3720-customer0-minifs.dtb **
) j3 ~" p/ I  a1 a12931 bytes read in 8 ms (1.5 MiB/s)
* a" B8 d; }, N& v+ m12931 bytes read in 3 ms (4.1 MiB/s)
Comphy-0: USB3_HOST0    5 Gbps   
5 B: j/ S6 C7 [Comphy-1: SGMII0        1.25 Gbps
. z, {$ p( p- I. ?+ T) M; U3 WComphy-2: SATA0         6 Gbps   
gpio: pin GPIO23 (gpio 39) value is 1
** File not found boot/armada-3720-customer0-minifs.dtb **
  z0 ?& T: b4 V9 [! Z0 L12931 bytes read in 3 ms (4.1 MiB/s)
, H: a% X' h" h5 r  p7 HEnter Normal mode
7 F; c0 O2 H* l$ F/ ~SCSI:  Hit any key to stop autoboot:  0
$ C/ |/ d  l4 Dgpio: pin GPIO221 (gpio 57) value is 0
( |0 V+ B% {/ q6 G6 \2 x& p( oÿÿ즰io: pin GPIO221 (gpio 57) value is 1
gpio: pin GPIO20 (gpio 36) value is 1