The first cmd8 interaction is out of time.LS1023

[weizhao_z]

Now we are debugging the emmc.and the CPU used is ls1023.

the emmc model is mtfc8gacaa-4m.uboot is printed as follows.

It seems that the first cmd8 interaction is out of time.

the schematic diagram is as follows.

RCW also the correct configuration

anyone can help me ,please

thank u

[Pavel]

Your message dump shows the ETIMEDOUT error. See the errno.h file in the attachment. This error happens from mmc_send_cmd function (file mmc.c). It result from sdhci_send_command function from the sdhci.c file.

Check your board using the AN5012 LS1043a Design Checklist:

https://www.nxp.com/webapp/Download?colCode=AN5012&location=null&fsrch=1&sr=1&pageNum=1&Parent_nodeI...

Have a great day,
Pavel Chubakov

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[weizhao_z]

emmm，

anyone have a similar problem?