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https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1654110/mcf8329evm-evm-is-not-connected
器件型号： MCF8329EVM
即使在为具有 12V 电压的 EVM 器件供电后、仍然显示 EVM 未连接。DK_INVOICE_126966394.pdf
尊敬的 Vinay：
请确认 R47 电位器位置正确、并验证位于连接器 J9 的 SPEED/WAKE 引脚上的电压测量。 该引脚应显示 3.3V。
谢谢、
Dhinesh
DK_INVOICE_126966394.pdf 