【求救】D1-哪吒开发板启动异常

陈塘关李靖 LV 6

D1-nezha开发板启动异常，上电的时候log卡住不动了，电源灯亮，但是系统固件里写好的绿灯闪烁没有亮。
复现概率：非必现，多重复几次拔插电回出现
串口log：

[188]HELLO! BOOT0 is starting!
[191]BOOT0 commit : 2337244-dirty

OpenSBI v0.6
   ____                    _____ ____ _____
  / __ \                  / ____|  _ \_   _|
 | |  | |_ __   ___ _ __ | (___ | |_) || |
 | |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
 | |__| | |_) |  __/ | | |____) | |_) || |_
  \____/| .__/ \___|_| |_|_____/|____/_____|
        | |
        |_|

Platform Name          : T-HEAD Xuantie Platform
Platform HART Features : RV64ACDFIMSUVX
Platform Max HARTs     : 1
Current Hart           : 0
Firmware Base          : 0x40000400
Firmware Size          : 75 KB
Runtime SBI Version    : 0.2

MIDELEG : 0x0000000000000222
MEDELEG : 0x000000000000b1ff
PMP0    : 0x0000000040000000-0x000000004001ffff (A)
PMP1    : 0x0000000040000000-0x000000007fffffff (A,R,W,X)
PMP2    : 0x0000000080000000-0x00000000bfffffff (A,R,
U-Boot 2018.05-00107-gc22c3d075c (Apr 24 2021 - 07:52:58 +0000) Allwinner Technology

[00.429]DRAM:  1 GiB
[00.431]Relocation Offset is: 3deeb000
[00.435]secure enable bit: 0
[00.438]CPU=1008 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=100Mhz  MBus=300Mhz
initr_ledc
unable to find ledc node in device tree.
[00.449]flash init start
[00.451]workmode = 0,storage type = 0
[00.457]sunxi-spinand-phy: not detect any munufacture from id table
[00.464]sunxi-spinand-phy: get spi-nand Model from fdt fail
[00.469]sunxi-spinand-phy: get phy info from fdt fail

device nand0 <nand>, # parts = 4
 #: name                size            offset          mask_flags
 0: boot0               0x00100000      0x00000000      1
 1: uboot               0x00300000      0x00100000      1
 2: secure_storage      0x00100000      0x00400000      1
 3: sys                 0x0fb00000      0x00500000      0

active partition: nand0,0 - (boot0) 0x00100000 @ 0x00000000

defaults:
mtdids  : nand0=nand
mtdparts: mtdparts=nand:1024k@0(boot0)ro,3072k@1048576(uboot)ro,1024k@4194304(secure_storage)ro,-(sys)
[00.807]ubi0: attaching mtd4
[01.204]ubi0: scanning is finished
[01.213]ubi0: attached mtd4 (name "sys", size 251 MiB)
[01.218]ubi0: PEB size: 262144 bytes (256 KiB), LEB size: 258048 bytes
[01.224]ubi0: min./max. I/O unit sizes: 4096/4096, sub-page size 2048
[01.230]ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[01.237]ubi0: good PEBs: 1004, bad PEBs: 0, corrupted PEBs: 0
[01.242]ubi0: user volume: 9, internal volumes: 1, max. volumes count: 128
[01.249]ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 0
[01.256]ubi0: available PEBs: 0, total reserved PEBs: 1004, PEBs reserved for bad PEB handling: 40
[01.265]sunxi flash init ok
[01.268]line:714 init_clocks
__clk_init: clk pll_periph0x2 already initialized
register fix_factor clk error
[01.278]drv_disp_init
partno erro : can't find partition bootloader
** Unable to read file lcd_compatible_index.txt **
[01.515]do_fat_fsload for lcd config failed
request pwm success, pwm2:pwm2:0x2000c00.
[01.529]drv_disp_init finish
[01.532]boot_gui_init:start
[01.535]set disp.dev2_output_type fail. using defval=0
[01.726]boot_gui_init:finish
[02.139]LCD open finish
partno erro : can't find partition bootloader
54 bytes read in 0 ms
[02.300]bmp_name=bootlogo.bmp size 38454
38454 bytes read in 4 ms (9.2 MiB/s)

DOT小文哥 LV 8

对比了一下log，发展这个log和正常的启动log是一样的，这里主要是显示/屏幕部分的打印，没有异常，只是突然断掉，怀疑是供电不稳定，建议使用稳定的供电电源。板子上有两个type-c USB口，一个是5V -2A供电的，一个是数据传输的，数据传输那个也能从PC那边供电，但是如果插的外设比较多的话，就要插上5V2A供电USB

lingeasy LV 5

这个问题我们在调试的时候也发现了，可能出现在两个位置，第一个是boot完以后，要打开LCD；别一个位置就是帖子里面所描述的位置。出现也不是必然，有一定的概率。最终确定是由于上电时序问题导致的，看一下手册上的上电时序要求，按照手册的需要改，大概率可以解决这个问题。