This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DMX512 Communication on the AC LED Lighting and Communications Developer’s Kit

大家好:

我正在使用DMX512协议做调光控制,目前有几个接口传输方面的问题。

下图是TI 工程师Brett Larimore写的一份Application Report(SPRABR9–January 2013)中的截图:

我的问题是:上图中RS485接口转换芯片SN65HVD3082ED的传输速率只有200Kbps, DMX512标准为250Kbps,这样做可行吗?

另外,SN65HVD3082ED的供电为5V,转换后的串行信号(DMX-RX)能直接接到3.3V供电的TMSF28027 MCU的SCI引脚上去,这样电平兼容吗?