@null037
兄弟，可以帮忙看下我这个问题吗？是不是也是芯片问题呀。这颗EMMC芯片也不在这个手册里面。[allwinner-v853-emmc-flash-support-list_v1.0.pdf]

我这个开机打印没有你帖子里面的打印的内容多。

https://bbs.aw-ol.com/topic/3487/v853-无法烧录问题-whycan晕哥?_=1683766917546

@whycan
晕哥，还有什么手段没有呀。坐等支持呀。

@whycan
目前用同样的固件可以烧到开发板上，在自己做的板子上面就是烧不进去。没有下一步了。目前的打印就是这样。

@whycan 在 V853 无法烧录问题@whycan晕哥 中说：

@wl17761275256
固件是OK的吗？

固件在开发板上下载过

@yuzukihd
1、板子上面只有EMMC，没有TF卡和Flash其他的。
2、PC的启动顺序，我确认下。但是我用开发板插上USB是可以烧录看到进度条的。

硬件背景
1、原理图参考官方双目开发板，电源管理使用 AXP2101。
2、EMMC使用妙存-AT70B08G3S03F。上电测试EMMC_CLK是50MHz波形。

烧录操作
1、开机上电USB供电5V。
2、使用PhoenixSuit.exe软件烧录固件。

3、附图烧录

4、附开机打印日志
开机打印.txt

打印到最后就没有了。一直停在这个位置

CCC[2313]fes begin commit:4b419f21ba
[2317]PMU: AXP21
[2320]set pll start
[2322]periph0 has been enabled
[2325]set pll end
[2327]board init ok
[2329]beign to init dram
[2331]DRAM use external ZQ!!
[2334]chip id check OK
[2336]DRAM_VCC set to 1500 mv
[2339]trefi:7.8ms
[2342][AUTO DEBUG] single rank and full DQ!
[2346]trefi:7.8ms
[2348][AUTO DEBUG] rank 0 row = 15
[2352][AUTO DEBUG] rank 0 bank = 8
[2355][AUTO DEBUG] rank 0 page size = 2 KB
[2359]DRAM BOOT DRIVE INFO: V0.16
[2362]DRAM CLK = 936 MHz
[2364]DRAM Type = 3 (2:DDR2,3:DDR3)
[2368]DRAMC ZQ value: 0x7b7bfb
[2371]DRAM ODT value: 0x42.
[2374]DRAM SIZE =512 M
[2376]dram_tpr4:0x0
[2380]DRAM simple test OK.
[2382]rtc standby flag is 0x0, super standby flag is 0x0
[2387]init dram ok


U-Boot 2018.05 (Apr 25 2023 - 11:52:11 +0800) Allwinner Technology

[04.899]CPU:   Allwinner Family
[04.902]Model: sun8iw21
I2C:   ready
[04.928]DRAM:  512 MiB
[04.932]Relocation Offset is: 1ced0000
[04.956]secure enable bit: 0
[04.959]PMU: AXP21
[04.961]PMU: pmu_axp2101 found
[04.964]BMU: AXP21
[04.965]BMU: bmu_axp2101 found
FDT ERROR:fdt_get_regulator_name:get property handle twi-supply error:FDT_ERR_INTERNAL
[04.976]gpio_bias, pc_bias: 1800, pc_supply: not set
[04.981]gpio_bias, pl_bias:   -1, pl_supply: not set
[04.986]dcdc1_vol = 3300, onoff=1
[04.990]dcdc2_vol = 900, onoff=1
[04.993]dcdc5_vol = 0, onoff=0
[04.996]aldo1_vol = 1800, onoff=1
[05.000]aldo2_vol = 1800, onoff=1
[05.003]aldo3_vol = 3300, onoff=1
[05.007]aldo4_vol = 3300, onoff=1
[05.010]bldo1_vol = 1800, onoff=1
[05.014]bldo2_vol = 2800, onoff=1
[05.017]dldo1_vol = 3300, onoff=1
[05.021]dldo2_vol = 1200, onoff=1
bias_name:pc_bias        bias_vol:1800
bias_name:pi_bias        bias_vol:1800
[05.031]bat_vol=36, ratio=0
[05.033]safe_vol=3500, safe_ratio=1
[05.037]CPU=900 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=24Mhz  MBus=300Mhz
[05.043]gic: normal mode
sunxi flash map init
[05.047]flash init start
[05.049]workmode = 16,storage type = 0
try card 2
set card number 2
get card number 2
[05.057][mmc]: mmc driver ver uboot2018:2021-12-20 13:35:00
[05.063][mmc]: get sdc_type fail and use default host:tm4.
[05.070][mmc]: Is not Boot mode!
[05.072][mmc]: SUNXI SDMMC Controller Version:0x50400
[05.083][mmc]: ************Try SD card 2************
[05.089][mmc]: mmc 2 cmd timeout 100 status 100
[05.093][mmc]: smc 2 err, cmd 8,  RTO
[05.096][mmc]: mmc 2 close bus gating and reset
[05.101][mmc]: mmc 2 cmd timeout 100 status 100
[05.105][mmc]: smc 2 err, cmd 55,  RTO
[05.109][mmc]: mmc 2 close bus gating and reset
[05.113][mmc]: ************Try MMC card 2************
[05.136][mmc]: mmc 2 cmd timeout 100 status 100
[05.140][mmc]: smc 2 err, cmd 8,  RTO
[05.144][mmc]: mmc 2 close bus gating and reset
[05.149][mmc]: mmc 2 cmd timeout 100 status 100
[05.153][mmc]: smc 2 err, cmd 55,  RTO
[05.156][mmc]: mmc 2 close bus gating and reset
[05.172][mmc]: gen_tuning_blk_bus8: total blk 10
[05.176][mmc]: gen_tuning_blk_bus4: total blk 6
[05.181][mmc]: Using 8 bit tuning now
[05.185][mmc]: write_tuning_try_freq: write ok
[05.189][mmc]: Pattern compare ok
[05.192][mmc]: Write tuning pattern ok
[05.195][mmc]: ================== HSSDR52_SDR25...
[05.200][mmc]: skip freq 400000
[05.203][mmc]: skip freq 25000000
[05.206][mmc]: freq: 2-50000000-64-4
[05.355][mmc]: [0-53|54] [61-63|3]
[05.358][mmc]: ================== HSDDR52_DDR50...
[05.362][mmc]: skip freq 400000
[05.365][mmc]: freq: 1-25000000-64-4
[05.507][mmc]: freq: 2-50000000-64-4
[05.598][mmc]: [0-50|51] [62-63|2]
[05.602][mmc]: [0-30|31] [32-50|19] [62-63|2]
[05.606][mmc]: DS26/SDR12: 0xffffffff 0xffffffff
[05.610][mmc]: HSSDR52/SDR25: 0xff1bffff 0xffffffff
[05.615][mmc]: HSDDR52/DDR50: 0xff0f19ff 0xffffffff
[05.619][mmc]: HS200/SDR104: 0xffffffff 0xffffffff
[05.624][mmc]: HS400: 0xffffffff 0xffffffff
[05.628][mmc]: HS400: 0xffffffff 0xffffffff
[05.632][mmc]: Best spd md: 2-HSDDR52/DDR50, freq: 2-50000000, Bus width: 8
[05.638]line:724 init_clocks
[05.641]init_clocks:finish
[05.644]Loading Environment from SUNXI_FLASH... OK
[05.648]try to burn key
[05.651]out of usb burn from boot: not need burn key
Hit any key to stop autoboot:  0
sunxi work mode=0x10
run usb efex
delay time 2500
weak:otg_phy_config
usb init ok
set address 0x9
set address 0x9 ok

1、确定如何选择GPIO Pin Select 和 eFuse Select 这2种模式如何选择。
2、硬件选择对应的管脚是哪个呢。

这个RTC电池输入脚VBackup的输入电压范围是多少啊。手册完全没找到。

@whycan我不用这些GPIO，把电源还是加上是吧

@wl17761275256 为什么没人回复呀