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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1007854/am6548-dcc
器件型号:AM6548我尝试在我们的定制板上使用带 AM6546 SR2.0的 DCC、但无法在源寄存器(DCCCLKSRC1和 DCCCLKSRC0)中放置任何内容。
此致
Johnny Mostraum
您好!
[引用 userid="443991" URL"~/support/processors-group/processors/f/processors-forum/1007854/am6548-dcc "]写入 DCCCLKSRC1和 DCCCLKSRC0时寄存器中始终为0 [/引用]如 TRM 的表12-9935中所述、我们必须首先通过向 KEY 位字段写入 KEY 值来启用时钟源-这仅对 SR2.0有效。 同样的推理也适用于 DCCCLKSRC1。