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MCBSTR9: COM1 (UART0) DOES NOT WORK
Information in this article applies to:
- MCBSTR9 Evaluation Boards Version 2
QUESTION
My STR912 application uses UART0 (COM1) to communicate with my PC. However, I cannot communicate over this interface. Are there any known problems with this RS232 port?
ANSWER
Unfortunately, there is a mistake in the layout of board version 2. The pins P3.7 and P3.8 are connected to the RS232 driver instead of P3.0 and P3.1. As a workaround, please use COM2 (UART1) for the communication. The schematics of MCBSTR9 version 2 are attached to this article.
This problem is fixed in board version 3 and higher.
MORE INFORMATION
- Refer to Serial Ports in the MCBSTR9 User's Guide.
- Refer to Schematics in the MCBSTR9 User's Guide.
ATTACHED FILES
Request the files attached to this knowledgebase article.
FORUM THREADS
The following Discussion Forum threads may provide information related to this topic.
Last Reviewed: Thursday, November 30, 2006
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