Dear Customer,
Owing to the GM8180 is a high speed IC with high speed DDR interface, improper PCB layout will cause the function fail.
From our experience, we found that the GM8180 performance and stability is strongly related to the PCB layout. So, we will provide the Gerber file upon request.
In order to ensure your system will work when making your own EVB at the first time, please copy the GM8180 BGA Power/Ground and DDR layout of our sample design into your system.
If your PCB layout of the Power/Ground and DDR part is not identical to our sample design, we may refuse to support your EVB debugging.
親愛的客戶:
GM8180是一顆高速SoC晶片, 並搭配高速之DDR SDRAM介面. 不正確的PCB繞線,會造成EVB系統工作不正常.
從我們多次設計GM8180系統經驗,發現GM8180的性能與穩定性,會與PCB繞線品質有強烈之關係.因此我們會提供客戶Gerber file做為參考.
為了確保客戶在製作屬於自己的EVB時,第一次就能成功, 我們要求客戶之PCB繞線,在GM8180 BGA Power/Ground及DDR SDRAM部分,要與原廠一模一樣.
假若客戶之PCB繞線與原廠要求不同時,基於人力考量,我們可能拒絕幫助客戶的EVB偵錯工作.
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