大家好,我公司在用MCIMX6X4EVM10AB 做一个项目。现在遇到了板子不启动的问题,现象如下:
供电都正常,但是无论配置到qspi1 启动还是 SD2 启动,用示波器都测量CLK都没有信号输出,实在找不到原因,下面是我的原理图,请大神帮忙指点一下。
Hello,
I've sent You some comments directly.
Have a great day,
Yuri
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Hello,
really glad to receive your response.
I am now grounding JTAG_MOD. Boot_mode0 is selected as 1 boot_mode1 is selected as 0, and the PC is connected via USB_OTG1, but the boot utility is always such an interface.
There is also a phenomenon. Although I have not started the board after power-on, the current is always 5V-120ma. Is this normal?
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Hello,
Looks like the i.MX6SX does not start at all.
Use recommendations of Chapter 4 (Avoiding Board Bring-up Problems)
in the i.MX6SX Hardware Development Guide.
https://www.nxp.com/files-static/32bit/doc/user_guide/IMX6SXHDG.pdf
Regards,
Yuri.
Have a question to confirm with you, the LICELL pin of the PMIC chip I am currently floating, so there will be problems? Must I pick up a button battery in this place?
Hello,
A capacitor to ground on the LICELL must be present.
Regards,
Yuri.
hi,
Another apearance is that USB_OTG1 can be recongnized by PC,when POR is connected with test pen ofoscilloscope.
what is your idea about the problem?
Is there POR assertion circuit (supervisor)?
Hello,
use additonally console log. It helps to clarify the issue.
Regards,
Yuri.
Hello, I am still not booting properly here. I will use the MfgTool2 software to download the firmware via USB_OTG to the interface ""loading U-boot". What is this because of this?
Hi,
According to the screenshot the i.MX6SX starts in serial downloader mode.
Try using other boot mode / devices.
Regards,
Yuri.