i.MX8MM外接LPDDR4是否支持，如何配置

[yongyang]

我们使用I.MX8MM芯片外接了一片LPDDR4,但是无法烧写UBOOT启动，如下图

请各位大神给予帮助，救急！！！！

下面附有对应LPDDR4手册

[pengyong_zhang]

Hi, @yongyang

Please use the following link to download the new DDR Config Tool:

https://www.nxp.com/design/design-center/development-boards/i-mx-evaluation-and-development-boards/c...

B.R

[yongyang]

we have start up the ddr,thank you.

[pengyong_zhang]

Hi, @yongyang 

Please re-run the ddr stress tool with the attached file.

B.R

[yongyang]

不行，板子跑不起来。

[pengyong_zhang]

hi, @yongyang 

Do you choose the right uart port? Please share the  Hardware schematic of the board.

B.R

[yongyang]

你好，原理图我已经发给您了

[yongyang]

hardware schematic of board have been uploded.

[pengyong_zhang]

Hi, @yongyang 

I saw the ddr datasheet and it has two channels, but there is only one channel in your set.

please set Nummber of channels : 2, Number of Chip Selects used :1.

B.R

[yongyang]

按照您的指示配置了，还是不行呀。