Hi all
My customer is using i.MX6DL and have a problem with PCIe.
Their waveform sometime out of PCIe specification due to the noise.
I guess that it can resolve the problem using the equalizer and emphasis.
However, I don't know the register for setting the equalizer and emphasis.
Which register can set the equalizer and emphasis value of PCIe ?
Ko-hey
Hello
Please check PCIe signals, using the the following discussion
"PCIe, diagnosing and improving eye diagram"
< https://community.freescale.com/message/537250#537250 >
Also, please try adjust parameters of PCIe_PHY by changing the IOMUXC_GPR8 register.
You may refer to app note AN4784
< http://cache.nxp.com/files/32bit/doc/app_note/AN4784.pdf >
Have a great day,
Yuri
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Hello Yuri
Thank you for reply.
My customer also have a link error.
Do you think can they avoid the link error when they adjust the register ?
Ko-hey
Hello,
At least, as the first important step - it is needed to get good data and clock signals.
Regards,
Yuri.
IOMUXC GPR8
Is the bit only ?
Ko-hey