hi3556v200烧录报错Send command: mmc write 0x0 0x810000

Platform Version: 5.3.6
HiBurn Version: 5.2.16
HiSilicon Technologies Co., Ltd. All rights reserved. (C) 2011-2019

海思3556v200烧录报错，貌似说emmc没有回应对应的电平，求解
Platform Version: 5.3.6
HiBurn Version: 5.2.16
HiSilicon Technologies Co., Ltd. All rights reserved. (C) 2011-2019

Current Serial port selection: COM1
Current Serial port selection: COM1
Platform Version: 5.3.6
HiBurn Version: 5.2.16
HiSilicon Technologies Co., Ltd. All rights reserved. (C) 2011-2019

Platform Version: 5.3.6
HiBurn Version: 5.2.16
HiSilicon Technologies Co., Ltd. All rights reserved. (C) 2011-2019

Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM1
Current Serial port selection: COM5

串口已经连接，请给单板上电，若已经上电，请断电后重新上电。

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Boot download completed!

System startup

Uncompress Ok!

U-Boot 2020.01 (Oct 22 2021 - 17:13:16 +0800)hi3556v200

DRAM: MMC:
EMMC/MMC/SD controller initialization.
Card did not respond to voltage select!
mmc_init failed! err:-95
No EMMC device found !
himci: 0
Loading Environment from MMC… Card did not respond to voltage select!
* Warning - MMC init failed, using default environment

In: serial
Out: serial
Err: serial
Net: No ethernet found.
start download process.

Boot started successfully!

Send command: mmc write 0x0 0x81000000 0x0 0x21e
Card did not respond to voltage select!
EOT
执行命令失败，可能的原因如下：
1.请检查当前单板Flash与烧写分区中的Flash类型是否一致；
2.当前fastboot不支持该命令；
Failed to burn fastboot!

串口已经连接，请给单板上电，若已经上电，请断电后重新上电。

######################### —— 10%

######################## —— 20%

######################## —— 30%

######################## —— 40%

######################## —— 50%

######################## —— 61%

######################## —— 71%

######################## —— 81%

######################## —— 91%

################### —— 100%

Boot download completed!

System startup

Uncompress Ok!

U-Boot 2020.01 (Oct 22 2021 - 17:13:16 +0800)hi3556v200

DRAM: MMC:
EMMC/MMC/SD controller initialization.
Card did not respond to voltage select!
mmc_init failed! err:-95
No EMMC device found !
himci: 0
Loading Environment from MMC… Card did not respond to voltage select!
* Warning - MMC init failed, using default environment

In: serial
Out: serial
Err: serial
Net: No ethernet found.
start download process.

Boot started successfully!

Send command: mmc write 0x0 0x81000000 0x0 0x21e
Card did not respond to voltage select!
EOT
执行命令失败，可能的原因如下：
1.请检查当前单板Flash与烧写分区中的Flash类型是否一致；
2.当前fastboot不支持该命令；
Failed to burn fastboot!