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ttl线跑码后，开机后绿灯亮，无视频输出信号
ttl卡代码
如下
U-Boot 2013.07-svn38331 (Jun 26 2015 - 01:55:30)
CPU : ZX296702@A9x1,900MHZ
Board: ZTE zx296702evb
DRAM: 1 GiB,533MHZ
****enable_caches ****
MMC: ZX2967_MSHC1: 0,, ZX2967_MSHC2: 1,
Using default environment
In: serial
Out: serial
Err: serial
Net: mmc partation type=0
[mmc_get_partition_table] end of part_table, index 0.
Partition table get from SPL is :
name offset size flag
===================================================================================
0: all 0 100000000 1
1: bootloader 0 400000 1
2: reserved 800000 1000000 1
3: env 1c00000 400000 1
4: conf 2400000 400000 1
5: logo 2c00000 1000000 1
6: recovery 4000000 1400000 1
7: misc 5800000 400000 1
8: boot 6000000 1400000 1
9: cache 7800000 30000000 2
10: system 37c00000 40000000 1
11: data 78000000 40000000 4
12: sdcard b8400000 33c00000 1
mmc read lba=0x4000, blocks=0x1
there are pending interrupts 0x00000001
mmc read lba=0x4001, blocks=0x1
mmc_read_partition_tbl: mmc read partition OK!
Partition table verified OK !
eMMC/TSD partition table have been checked OK!
Hit any key to stop autoboot: 0
zx296702 #
求高手解答，这是怎么回事？
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发表于 2020-4-9 11:29
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